Alert archive / Wyoming / Winter Storm Warnings in 2012

Winter Storm Warning 10, NWS Riverton, WY

December 7, 20124 counties in Wyoming

NWS Riverton, WY issued this winter storm warning at Dec 7, 2012, 2:33 AM MST for 4 counties in Wyoming. It took effect at Dec 7, 2012, 11:47 AM MST. It was in force for 28 hr. 59 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 7, 2012, 2:33 AM MST (09:33 UTC)
In effect from
Dec 7, 2012, 11:47 AM MST
Expired
Dec 8, 2012, 3:23 PM MST
In force
28 hr
Issued by
NWS Riverton, WY

Counties Fremont County, WY, Lincoln County, WY, Sublette County, WY, Teton County, WY

The radar

The Riverton/Lander radar (KRIW), 120 km from the middle of the area, began a volume at 09:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 7, 4:37 PM MSTHEAVY SNOW 925 Nw Dubois, WYTOGWOTEE PASS SNOTEL
Dec 7, 4:38 PM MSTSNOW 419 Sw Bondurant, WYBLIND BULL SUMMIT SNOTEL
Dec 7, 4:38 PM MSTSNOW 58 Se Afton, WYCOTTONWOOD CREEK SNOTEL
Dec 7, 4:38 PM MSTHEAVY SNOW 68 Ne Afton, WYWILLOW CREEK SNOTEL
Dec 7, 4:39 PM MSTHEAVY SNOW 723 Nw Dubois, WYBROOKS LAKE LODGE
Dec 7, 4:39 PM MSTHEAVY SNOW 8Togwotee Mountain Lodge, WY
Dec 7, 4:40 PM MSTSNOW 59.4 Nnw Jackson, WYJACKSON HOLE-RENDEZVOUS BOWL
Dec 7, 4:41 PM MSTSNOW 5.59.3 Nnw Jackson, WYJACKSON HOLE-MID
Dec 7, 4:41 PM MSTHEAVY SNOW 6.59.9 Nnw Jackson, WYJACKSON HOLE-RAYMER
Dec 8, 5:10 AM MSTSNOW 35 Ne Alta, WYGRAND TARGHEE-CHIEF JOSEPH
Dec 8, 5:10 AM MSTHEAVY SNOW 61 S Jackson, WYSNOW KING SKI AREA
Dec 8, 5:11 AM MSTSNOW 223 Nw Dubois, WYBROOKS LAKE LODGE
Dec 8, 5:11 AM MSTSNOW 2Togwotee Mountain Lodge, WY
Dec 8, 5:11 AM MSTHEAVY SNOW 714.3 E Thayne, WYBOX Y RANCH
Dec 8, 5:15 AM MSTSNOW 316 Sw Dubois, WYGUNSITE PASS SNOTEL
Dec 8, 5:15 AM MSTSNOW 4South Entrance, WYSNAKE RIVER STN SNOTEL
Dec 8, 5:47 AM MSTSNOW 3.814 Nw Pinedale, WY
Dec 8, 6:29 AM MSTSNOW 4Moose, WY
Dec 8, 6:30 AM MSTSNOW 42 Sw Teton Village, WY
Dec 8, 7:01 AM MSTHEAVY SNOW 8.23 Ssw Wilson, WY
Dec 8, 7:24 AM MSTHEAVY SNOW 75 Nne Thayne, WY
Dec 8, 7:26 AM MSTSNOW 2.94 Ssw Jackson, WY
Dec 8, 11:13 AM MSTHEAVY SNOW 8.52 Se Thayne, WY
Dec 8, 11:18 AM MSTSNOW 3.5Jackson, WY
Dec 8, 11:22 AM MSTSNOW 5Smoot, WY
Dec 8, 11:39 AM MSTSNOW 5Afton, WY
Dec 8, 11:41 AM MSTSNOW 54 Ene South Pass City, WY
Dec 8, 11:52 AM MSTSNOW 1Daniel Fish Hatchery, WY
Dec 8, 11:54 AM MSTSNOW 12.5 Se Boulder, WYBOULDER REARING STATION
Dec 8, 12:32 PM MSTSNOW 416 Ne Dubois, WYCASTLE CREEK SNOTEL
Dec 8, 12:35 PM MSTHEAVY SNOW 68 W South Entrance, WYGRASSY LAKE SNOTEL
Dec 8, 12:35 PM MSTHEAVY SNOW 1110 N Bondurant, WYGRANITE CREEK SNOTEL
Dec 8, 12:36 PM MSTHEAVY SNOW 720 Ne Bondurant, WYGROS VENTRE SUMMIT SNOTEL
Dec 8, 12:36 PM MSTHEAVY SNOW 814 E Bondurant, WYLOOMIS PARK SNOTEL
Dec 8, 12:36 PM MSTHEAVY SNOW 98 Wnw Jackson, WYPHILLIPS BENCH SNOTEL
Dec 8, 12:37 PM MSTHEAVY SNOW 625 Nw Dubois, WYTOGWOTEE PASS SNOTEL
Dec 8, 12:39 PM MSTSNOW 512 Nne Pinedale, WYELKHART PARK G.S. SNOTEL
Dec 8, 12:39 PM MSTHEAVY SNOW 1124 Ese Boulder, WYBIG SANDY OPENING SNOTEL
Dec 8, 12:41 PM MSTHEAVY SNOW 1022 N Cora, WYKENDALL RANGER STATION SNOTEL
Dec 8, 12:42 PM MSTSNOW 516 E Boulder, WYPOCKET CREEK SNOTEL
Dec 8, 12:42 PM MSTHEAVY SNOW 625 Sw Lander, WYLARSEN CREEK SNOTEL
Dec 8, 12:42 PM MSTHEAVY SNOW 712 N Cora, WYNEW FORK LAKE SNOTEL
Dec 8, 12:43 PM MSTSNOW 214 W Crowheart, WYCOLD SPRINGS SNOTEL
Dec 8, 12:43 PM MSTSNOW 218 W Lander, WYHOBBS PARK SNOTEL
Dec 8, 12:43 PM MSTHEAVY SNOW 919 Ssw Lander, WYDEER PARK SNOTEL
Dec 8, 12:44 PM MSTSNOW 46 Wsw Dubois, WYLITTLE WARM SNOTEL
Dec 8, 12:44 PM MSTHEAVY SNOW 127 Nw Atlantic City, WYSOUTH PASS SNOTEL
Dec 8, 12:46 PM MSTSNOW 226 Nw Lander, WYST. LAWRENCE ALT SNOTEL
Dec 8, 12:47 PM MSTSNOW 212 Sw Lander, WYTOWNSEND CREEK SNOTEL
Dec 8, 12:48 PM MSTHEAVY SNOW 626 N Kemmerer, WYHAMS FORK SNOTEL
Dec 8, 12:48 PM MSTHEAVY SNOW 836 N Kemmerer, WYINDIAN CREEK SNOTEL
Dec 8, 12:48 PM MSTHEAVY SNOW 88 Se Afton, WYCOTTONWOOD CREEK SNOTEL
Dec 8, 12:49 PM MSTHEAVY SNOW 615 Nne Cokeville, WYKELLEY RANGER STATION SNOTEL
Dec 8, 12:49 PM MSTHEAVY SNOW 615 S Afton, WYSALT RIVER SUMMIT SNOTEL
Dec 8, 12:50 PM MSTHEAVY SNOW 1017 E Afton, WYTRIPLE PEAK SNOTEL
Dec 8, 12:50 PM MSTHEAVY SNOW 1219 Se Afton, WYSPRING CREEK DIVIDE SNOTEL
Dec 8, 12:50 PM MSTHEAVY SNOW 1421 W Big Piney, WYSNIDER BASIN SNOTEL
Dec 8, 12:51 PM MSTHEAVY SNOW 712 Ese Bondurant, WYEAST RIM DIVIDE SNOTEL
Dec 8, 12:51 PM MSTHEAVY SNOW 128 Ne Afton, WYWILLOW CREEK SNOTEL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 9.6 hours before the alert went out and 126 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 00:00Z on 2012-12-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2012-12-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2567 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

351 
WWUS45 KRIW 070933
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
233 AM MST FRI DEC 7 2012

...COLD WINTER STORM IN THE WEST LATE TODAY THROUGH SATURDAY...

.A SIGNIFICANT CHANGE IN THE WEATHER PATTERN WILL USHER IN COLDER
AND COLDER AIR THE NEXT COUPLE DAYS. A STORM SYSTEM WILL MOVE
THROUGH LATE TODAY INTO TONIGHT AND BRING PERIODS OF SNOW
AND BLOWING SNOW. THE COMBINATION OF SNOW... STRONG WIND...BLOWING
SNOW AND SHARPLY COLDER TEMPERATURES WILL COMBINE TO PRODUCE A
HIGH IMPACT WINTER STORM FOR PARTS OF THE WEST LATE TODAY THROUGH
SATURDAY.

WYZ012-072300-
/O.UPG.KRIW.WS.A.0008.121207T2100Z-121208T1800Z/
/O.NEW.KRIW.WS.W.0010.121207T2100Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
233 AM MST FRI DEC 7 2012

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 2 PM THIS AFTERNOON TO 11 AM MST SATURDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW WILL FALL THIS
  MORNING. THE SNOW WILL BEGIN TO INCREASE LATE THIS AFTERNOON
  WITH MODERATE TO HEAVY SNOW AND INCREASING WIND BEGINNING THIS
  EVENING AND CONTINUE INTO SATURDAY MORNING BEFORE DECREASING IN
  INTENSITY.

* SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY 15 INCHES ON 
  FAVORED NORTHWEST FACING SLOPES. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 50 
  TO 60 MPH REDUCING THE VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS WILL LIKELY BECOME QUITE
  TREACHEROUS BY TONIGHT WITH TETON PASS LIKELY BECOMING
  SLICK AND SNOW COVERED WITH SHARPLY REDUCED VISIBILITY IN SNOW
  AND WIND.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-072300-
/O.UPG.KRIW.WS.A.0008.121208T0000Z-121209T0000Z/
/O.NEW.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
233 AM MST FRI DEC 7 2012

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 5 PM MST SATURDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW OR FLURRIES WILL
  FALL TODAY BUT THE MORE SIGNIFICANT SNOW WILL BEGIN THIS
  EVENING AND CONTINUE THROUGH SATURDAY BEFORE DECREASING SATURDAY
  EVENING. THE SNOW WILL BE ACCOMPANIED BY INCREASING WEST WIND.

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT
  PASS...WILL LIKELY BECOME QUITE TREACHEROUS TONIGHT AND CONTINUE
  INTO SATURDAY WITH THE SNOW AND STRONG WIND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-072300-
/O.UPG.KRIW.WS.A.0008.121208T0000Z-121209T0000Z/
/O.NEW.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
233 AM MST FRI DEC 7 2012

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 5 PM MST SATURDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW TODAY WILL TO
  INCREASE IN INTENSITY THIS EVENING AND MAY BECOME HEAVY AT
  TIMES TONIGHT AND CONTINUE THROUGH THE DAY SATURDAY.
  THE COMBINATION OF THE SNOW AND STRONG SOUTHWEST WINDS MAY
  PRODUCE CONSIDERABLE BLOWING SNOW WITH TIME.

* SNOW ACCUMULATIONS...6 TO 9 INCHES.

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL LIKELY BECOME
  SLICK TONIGHT AND CONTINUE THROUGH SATURDAY. THE STRONG WINDS
  AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS
  STORM.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-002-072300-
/O.NEW.KRIW.WW.Y.0034.121207T2100Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
233 AM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 2 PM THIS AFTERNOON TO 11 AM MST SATURDAY. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW WILL FALL THIS
  MORNING. THE SNOW WILL BEGIN TO INCREASE LATE THIS AFTERNOON
  WITH MODERATE TO POSSIBLY HEAVY SNOW AND INCREASING WIND
  BEGINNING FRIDAY EVENING AND CONTINUE INTO SATURDAY MORNING
  BEFORE DECREASING IN INTENSITY.

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 25 TO 35 MPH WITH
  GUSTS TO 50 MPH WILL REDUCE VISIBILITY TO UNDER ONE HALF MILE AT
  TIMES. EVEN HIGHER WINDS ARE POSSIBLE OVER THE PEAKS.

* IMPACTS...TRAVEL THROUGH WILL LIKELY BECOME SLICK TONIGHT
  AND CONTINUE THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW
  COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ013-072300-
/O.NEW.KRIW.WW.Y.0034.121207T2100Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
233 AM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
2 PM THIS AFTERNOON TO 11 AM MST SATURDAY.

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW WILL FALL THROUGH
  MIDDAY. THE SNOW WILL BEGIN TO INCREASE LATE THIS AFTERNOON WITH
  MODERATE TO POSSIBLY HEAVY SNOW AND INCREASING WIND FRIDAY
  EVENING AND CONTINUE INTO SATURDAY MORNING BEFORE DECREASING IN
  INTENSITY.

* SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 15 TO 30 MPH WITH
  GUSTS TO 45 MPH. VISIBILITY CAN BE REDUCED TO UNDER ONE HALF
  MILE AT TIMES...ESPECIALLY NORTH OF THE TOWN OF JACKSON.

* IMPACTS...RAVEL THROUGH WILL LIKELY BECOME SLICK TONIGHT
  AND CONTINUE THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW
  COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
9 follow-up statements
120 
WWUS45 KRIW 071453 CCA
WSWRIW

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE RIVERTON WY
751 AM MST FRI DEC 7 2012

...COLD WINTER STORM IN THE WEST LATE TODAY THROUGH SATURDAY...

.A SIGNIFICANT CHANGE IN THE WEATHER PATTERN WILL USHER IN COLDER
AND COLDER AIR THE NEXT COUPLE DAYS. A STORM SYSTEM WILL MOVE
THROUGH LATE TODAY INTO TONIGHT AND BRING PERIODS OF SNOW
AND BLOWING SNOW. THE COMBINATION OF SNOW... STRONG WIND...BLOWING
SNOW AND SHARPLY COLDER TEMPERATURES WILL COMBINE TO PRODUCE A
HIGH IMPACT WINTER STORM FOR PARTS OF THE WEST LATE TODAY THROUGH
SATURDAY.

WYZ012-080430-
/O.UPG.KRIW.WS.A.0008.121207T2100Z-121208T1800Z/
/O.NEW.KRIW.WS.W.0010.121207T2100Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
751 AM MST FRI DEC 7 2012

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 2 PM THIS AFTERNOON TO 11 AM MST SATURDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW WILL FALL THIS
  MORNING. THE SNOW WILL BEGIN TO INCREASE LATE THIS AFTERNOON
  WITH MODERATE TO HEAVY SNOW AND INCREASING WIND BEGINNING THIS
  EVENING AND CONTINUE INTO SATURDAY MORNING BEFORE DECREASING IN
  INTENSITY.

* SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY 15 INCHES ON 
  FAVORED NORTHWEST FACING SLOPES. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 50 
  TO 60 MPH REDUCING THE VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS WILL LIKELY BECOME QUITE
  TREACHEROUS BY TONIGHT WITH TETON PASS LIKELY BECOMING
  SLICK AND SNOW COVERED WITH SHARPLY REDUCED VISIBILITY IN SNOW
  AND WIND.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-080430-
/O.UPG.KRIW.WS.A.0008.121208T0000Z-121209T0000Z/
/O.NEW.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
751 AM MST FRI DEC 7 2012

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 5 PM MST SATURDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW OR FLURRIES WILL
  FALL TODAY BUT THE MORE SIGNIFICANT SNOW WILL BEGIN THIS
  EVENING AND CONTINUE THROUGH SATURDAY BEFORE DECREASING SATURDAY
  EVENING. THE SNOW WILL BE ACCOMPANIED BY INCREASING WEST WIND.

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT
  PASS...WILL LIKELY BECOME QUITE TREACHEROUS TONIGHT AND CONTINUE
  INTO SATURDAY WITH THE SNOW AND STRONG WIND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-080430-
/O.UPG.KRIW.WS.A.0008.121208T0000Z-121209T0000Z/
/O.NEW.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
751 AM MST FRI DEC 7 2012

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 5 PM MST SATURDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW TODAY WILL TO
  INCREASE IN INTENSITY THIS EVENING AND MAY BECOME HEAVY AT
  TIMES TONIGHT AND CONTINUE THROUGH THE DAY SATURDAY.
  THE COMBINATION OF THE SNOW AND STRONG SOUTHWEST WINDS MAY
  PRODUCE CONSIDERABLE BLOWING SNOW WITH TIME.

* SNOW ACCUMULATIONS...6 TO 9 INCHES.

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL LIKELY BECOME
  SLICK TONIGHT AND CONTINUE THROUGH SATURDAY. THE STRONG WINDS
  AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS
  STORM.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-002-080430-
/O.NEW.KRIW.WW.Y.0034.121207T2100Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
751 AM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 2 PM THIS AFTERNOON TO 11 AM MST SATURDAY. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW WILL FALL THIS
  MORNING. THE SNOW WILL BEGIN TO INCREASE LATE THIS AFTERNOON
  WITH MODERATE TO POSSIBLY HEAVY SNOW AND INCREASING WIND
  BEGINNING FRIDAY EVENING AND CONTINUE INTO SATURDAY MORNING
  BEFORE DECREASING IN INTENSITY.

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 25 TO 35 MPH WITH
  GUSTS TO 50 MPH WILL REDUCE VISIBILITY TO UNDER ONE HALF MILE AT
  TIMES. EVEN HIGHER WINDS ARE POSSIBLE OVER THE PEAKS.

* IMPACTS...TRAVEL THROUGH WILL LIKELY BECOME SLICK TONIGHT
  AND CONTINUE THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW
  COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ013-080430-
/O.COR.KRIW.WW.Y.0034.121207T2100Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
751 AM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
2 PM THIS AFTERNOON TO 11 AM MST SATURDAY.

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW WILL FALL THROUGH
  MIDDAY. THE SNOW WILL BEGIN TO INCREASE LATE THIS AFTERNOON WITH
  MODERATE TO POSSIBLY HEAVY SNOW AND INCREASING WIND FRIDAY
  EVENING AND CONTINUE INTO SATURDAY MORNING BEFORE DECREASING IN
  INTENSITY.

* SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 15 TO 30 MPH WITH
  GUSTS TO 45 MPH. VISIBILITY CAN BE REDUCED TO UNDER ONE HALF
  MILE AT TIMES...ESPECIALLY NORTH OF THE TOWN OF JACKSON.

* IMPACTS...TRAVEL THROUGH THE JACKSON VALLEY WILL LIKELY BECOME
  SLICK BY THIS EVENING AND CONTINUE THROUGH SATURDAY MORNING. THE STRONG
  WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL DURING
  THIS STORM.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. 

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
281 
WWUS45 KRIW 071847
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1147 AM MST FRI DEC 7 2012

...COLD WINTER STORM IN THE WEST LATE TODAY THROUGH SATURDAY...

.A SIGNIFICANT CHANGE IN THE WEATHER PATTERN WILL USHER IN COLDER
AND COLDER AIR THE NEXT COUPLE DAYS. A STORM SYSTEM WILL MOVE
THROUGH LATE TODAY INTO TONIGHT AND BRING PERIODS OF SNOW AND
BLOWING SNOW. THE COMBINATION OF SNOW... STRONG WIND...BLOWING
SNOW AND SHARPLY COLDER TEMPERATURES WILL COMBINE TO PRODUCE A
HIGH IMPACT WINTER STORM FOR PARTS OF THE WEST LATE TODAY THROUGH
SATURDAY.

WYZ012-080000-
/O.EXT.KRIW.WS.W.0010.121207T1847Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
1147 AM MST FRI DEC 7 2012

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST SATURDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE
  THROUGH SATURDAY MORNING BEFORE DECREASING. THE WIND WILL BEGIN
  INCREASING THIS EVENING AND PEAK OVERNIGHT BEFORE GRADUALLY
  DECREASING BY MID MORNING SATURDAY. SNOWFALL AMOUNTS OF 5 TO 8
  INCHES HAVE BEEN REPORTED AT TOGWOTEE PASS...BROOKS LATE AREA
  AND AT JACKSON HOLE SKI AREA AS OF LATE THIS MORNING.

* SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER AMOUNTS
  ON NORTHWEST FACING SLOPES.

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 50 
  TO 60 MPH REDUCING THE VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS WILL BE QUITE TREACHEROUS BY
  TONIGHT WITH TETON PASS LIKELY SLICK AND SNOW COVERED WITH
  SHARPLY REDUCED VISIBILITY IN SNOW AND WIND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-080000-
/O.CON.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
1147 AM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST SATURDAY. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW OR FLURRIES WILL 
  FALL TODAY BUT THE MORE SIGNIFICANT SNOW WILL BEGIN THIS 
  EVENING AND CONTINUE THROUGH SATURDAY BEFORE DECREASING 
  SATURDAY EVENING. THE SNOW WILL BE ACCOMPANIED BY INCREASING 
  WEST WIND. 

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT 
  PASS...WILL LIKELY BECOME QUITE TREACHEROUS TONIGHT AND 
  CONTINUE INTO SATURDAY WITH THE SNOW AND STRONG WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-080000-
/O.CON.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
1147 AM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST SATURDAY. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW TODAY WILL TO 
  INCREASE IN INTENSITY THIS EVENING AND MAY BECOME HEAVY AT 
  TIMES TONIGHT AND CONTINUE THROUGH THE DAY SATURDAY. THE 
  COMBINATION OF THE SNOW AND STRONG SOUTHWEST WINDS MAY PRODUCE 
  CONSIDERABLE BLOWING SNOW WITH TIME. 

* SNOW ACCUMULATIONS...6 TO 9 INCHES.

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL LIKELY BECOME 
  SLICK TONIGHT AND CONTINUE THROUGH SATURDAY. THE STRONG WINDS 
  AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS 
  STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-002-080000-
/O.EXT.KRIW.WW.Y.0034.121207T1847Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
1147 AM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST
SATURDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE INTO
  THE AFTERNOON BEFORE INCREASING INTO THE EVENING HOURS AND
  CONTINUING OVERNIGHT. SOME FAVORED AREAS IN THE SOUTHERN
  MOUNTAINS HAVE ALREADY RECEIVED 6 TO 9 INCHES OF SNOW WITH VERY
  LITTLE SNOW ON THE VALLEY FLOOR. WIND WILL ALSO BE ON THE
  INCREASE THIS EVENING AND IT WILL COMBINE WITH MODERATE TO
  LOCALLY HEAVY SNOW AT TIMES OVERNIGHT.

* SNOW ACCUMULATIONS...3 TO 6 INCHES IN THE NORTHERN VALLEYS WITH
  6 TO 12 INCHES IN THE MOUNTAINS WITH LOCALLY HIGHER AMOUNTS IN
  THE SOUTHERN MOUNTAINS.

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 25 TO 35 MPH 
  WITH GUSTS TO 50 MPH WILL REDUCE VISIBILITY TO UNDER ONE HALF 
  MILE AT TIMES. EVEN HIGHER WINDS ARE POSSIBLE OVER THE PEAKS. 

* IMPACTS...TRAVEL THROUGH WILL LIKELY BECOME SLICK TONIGHT AND 
  CONTINUE THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW 
  COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ013-080000-
/O.CON.KRIW.WW.Y.0034.121207T2100Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
1147 AM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...INTERMITTENT LIGHT SNOW WILL FALL THROUGH 
  MIDDAY. THE SNOW WILL BEGIN TO INCREASE LATE THIS AFTERNOON 
  WITH MODERATE TO POSSIBLY HEAVY SNOW AND INCREASING WIND 
  FRIDAY EVENING AND CONTINUE INTO SATURDAY MORNING BEFORE 
  DECREASING IN INTENSITY. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 15 TO 30 MPH 
  WITH GUSTS TO 45 MPH. VISIBILITY CAN BE REDUCED TO UNDER ONE 
  HALF MILE AT TIMES...ESPECIALLY NORTH OF THE TOWN OF JACKSON. 

* IMPACTS...TRAVEL THROUGH THE JACKSON VALLEY WILL LIKELY BECOME 
  SLICK BY THIS EVENING AND CONTINUE THROUGH SATURDAY MORNING. 
  THE STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER 
  TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
913 
WWUS45 KRIW 072145
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
245 PM MST FRI DEC 7 2012

...COLD WINTER STORM IN THE WEST THROUGH SATURDAY...

.SNOW WILL CONTINUE TONIGHT AND SATURDAY. THE COMBINATION OF
SNOW... STRONG WIND...BLOWING SNOW AND SHARPLY COLDER TEMPERATURES
WILL COMBINE TO PRODUCE A HIGH IMPACT WINTER STORM FOR PARTS OF
THE WEST TONIGHT THROUGH SATURDAY.

WYZ012-081215-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
245 PM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE
  THROUGH SATURDAY MORNING BEFORE DECREASING. THE WIND WILL BEGIN
  INCREASING THIS EVENING AND PEAK OVERNIGHT BEFORE GRADUALLY
  DECREASING BY MID MORNING SATURDAY. SNOWFALL AMOUNTS OF 5 TO 8
  INCHES HAVE BEEN REPORTED AT TOGWOTEE PASS...BROOKS LATE AREA
  AND AT JACKSON HOLE SKI AREA AS OF EARLY THIS AFTERNOON. 

* SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS ON NORTHWEST FACING SLOPES. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 50 
  TO 60 MPH REDUCING THE VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS WILL BE QUITE TREACHEROUS TONIGHT
  WITH TETON PASS LIKELY SLICK AND SNOW COVERED WITH SHARPLY
  REDUCED VISIBILITY IN SNOW AND WIND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-081215-
/O.CON.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
245 PM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST SATURDAY. 

* SUMMARY AND TIMING...SNOW AND WIND WILL BE ON THE INCREASE
  THROUGH THE EVENING AND CONTINUE THE MAJORITY OF SATURDAY.

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT 
  PASS...WILL LIKELY BECOME QUITE TREACHEROUS TONIGHT AND 
  CONTINUE INTO SATURDAY WITH THE SNOW AND STRONG WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-081215-
/O.CON.KRIW.WS.W.0010.121208T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
245 PM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 5 PM MST SATURDAY. 

* SUMMARY AND TIMING...SNOW WILL INCREASE IN INTENSITY THIS
  EVENING AND WILL BECOME HEAVY AT TIMES TONIGHT AND CONTINUE THROUGH
  THE DAY SATURDAY. THE COMBINATION OF THE SNOW AND STRONG
  SOUTHWEST WINDS MAY PRODUCE CONSIDERABLE BLOWING SNOW WITH TIME.

* SNOW ACCUMULATIONS...6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS
  AROUND ALPINE AND FROM THAYNE TO BEDFORD.

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL LIKELY BECOME 
  SLICK TONIGHT AND CONTINUE THROUGH SATURDAY. THE STRONG WINDS 
  AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS 
  STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ025-081215-
/O.EXB.KRIW.WW.Y.0034.121208T0000Z-121208T1800Z/
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
245 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND WIND WHICH IS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP AND BECOME WIDESPREAD
  THIS EVENING. THE SNOW MAY BE MODERATE TO HEAVY AT TIMES LATER
  TONIGHT AND SATURDAY MORNING...ESPECIALLY FROM CORA JUNCTION TO
  BONDURANT. THE SNOW WILL BE BLOWN ABOUT BY STRONG NORTHWEST
  WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH.

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH UP TO 8 INCHES BETWEEN
  CORA JUNCTION AND BONDURANT.

* WIND AND VISIBILITY...NORTHWEST 20 TO 30 MPH WITH GUSTS TO 40 MPH. 

* IMPACTS...TRAVEL BETWEEN PINEDALE AND BONDURANT WILL BECOME
  SLICK BY THIS EVENING AND CONTINUE THROUGH SATURDAY MORNING. THE
  STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL
  DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ014-015-081215-
/O.EXB.KRIW.WW.Y.0034.121208T0000Z-121208T1800Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
245 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND WIND WHICH IS IN EFFECT FROM 5 PM
THIS AFTERNOON TO 11 AM MST SATURDAY.

* SUMMARY AND TIMING...SNOW WILL DEVELOP AND BECOME WIDESPREAD
  THIS EVENING. THE SNOW MAY BE MODERATE TO HEAVY AT TIMES LATER
  TONIGHT AND SATURDAY MORNING. THE SNOW WILL BE BLOWN ABOUT BY
  STRONG WEST WINDS OF 30 TO 40 MPH WITH GUSTS TO 50 MPH.

* SNOW ACCUMULATIONS...5 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS
  IN THE NORTHWEST PART OF THE RANGE ABOVE CORA.

* WIND AND VISIBILITY...WEST 30 TO 40 MPH WITH GUSTS TO 50 MPH
  CAUSING THE VISIBILITY TO DROP TO NEAR ZERO AT TIMES OVER SOUTH
  PASS. 

* IMPACTS...TRAVEL THROUGH THE MOUNTAINS AND OVER SOUTH PASS
  TONIGHT AND SATURDAY MORNING WILL BECOME SLICK WITH SHARPLY
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ027-081215-
/O.EXB.KRIW.WW.Y.0034.121208T0600Z-121209T0000Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
245 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND WIND WHICH IS IN EFFECT
FROM 11 PM THIS EVENING TO 5 PM MST SATURDAY. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP LATER THIS EVENING AND
  CONTINUE THROUGH THE DAY SATURDAY. WEST WIND WILL ALSO BE ON THE
  INCREASE OVERNIGHT. 

* SNOW ACCUMULATIONS...3 TO 5 INCHES AROUND KEMMERER WITH 6 TO 9
  INCHES IN COKEVILLE. 

* WIND AND VISIBILITY...WEST BECOMING WEST 25 TO 35 MPH WITH GUSTS
  TO 50 MPH REDUCING THE VISIBILITY TO UNDER ONE QUARTER MILE AT
  TIMES. 

* IMPACTS...TRAVEL BETWEEN KEMMERER AND COKEVILLE WILL BECOME
  SLICK LATER THIS EVENING AND CONTINUE THROUGH SATURDAY. THE
  STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL
  DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ028>030-081215-
/O.EXB.KRIW.WW.Y.0034.121208T1200Z-121209T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
245 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND VERY STRONG WIND WHICH IS IN EFFECT
FROM 5 AM TO 5 PM MST SATURDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST EAST
  ACROSS THE AREA ON SATURDAY WITH LIGHT SNOW AND VERY STRONG WEST
  WINDS. THE COMBINATION OF AN INCH OR TWO OF SNOW...VERY STRONG
  WINDS AND SLICK ROADS WILL DEFINITELY HAMPER TRAVEL. 

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WIND AND VISIBILITY...WEST BECOMING WEST 30 TO 40 MPH WITH GUSTS
  OF 50 TO 60 MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN SNOW
  AND BLOWING SNOW.

* IMPACTS...TRAVEL ALONG INTERSTATE 80 AND OTHER STATE ROUTES WILL
  BECOME SLICK ON SATURDAY. THE SLICK ROADS AND SHARPLY REDUCED
  VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL DEFINITELY
  MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATE 80 ON SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-002-081215-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
245 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE INTO 
  THE AFTERNOON BEFORE INCREASING INTO THE EVENING HOURS AND 
  CONTINUING OVERNIGHT. SOME FAVORED AREAS IN THE SOUTHERN 
  MOUNTAINS HAVE ALREADY RECEIVED 6 TO 9 INCHES OF SNOW WITH 
  VERY LITTLE SNOW ON THE VALLEY FLOOR. WIND WILL ALSO BE ON THE 
  INCREASE THIS EVENING AND IT WILL COMBINE WITH MODERATE TO 
  LOCALLY HEAVY SNOW AT TIMES OVERNIGHT. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES IN THE NORTHERN VALLEYS 
  WITH 6 TO 12 INCHES IN THE MOUNTAINS WITH LOCALLY HIGHER 
  AMOUNTS IN THE SOUTHERN MOUNTAINS. 

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 25 TO 35 MPH 
  WITH GUSTS TO 50 MPH WILL REDUCE VISIBILITY TO UNDER ONE HALF 
  MILE AT TIMES. EVEN HIGHER WINDS ARE POSSIBLE OVER THE PEAKS. 

* IMPACTS...TRAVEL THROUGH WILL LIKELY BECOME SLICK TONIGHT AND 
  CONTINUE THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW 
  COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ013-081215-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
245 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...THE SNOW AND WIND WILL BEGIN TO INCREASE
  THIS EVENING AND CONTINUE INTO SATURDAY MORNING. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS
  ON THE NORTH END OF THE VALLEY.

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 15 TO 30 MPH WITH
  GUSTS TO 45 MPH. VISIBILITY CAN BE REDUCED TO UNDER ONE QUARTER MILE
  AT TIMES...ESPECIALLY NORTH OF THE TOWN OF JACKSON.

* IMPACTS...TRAVEL THROUGH THE JACKSON VALLEY WILL LIKELY BECOME 
  SLICK BY THIS EVENING AND CONTINUE THROUGH SATURDAY MORNING. 
  THE STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER 
  TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

SKRBAC
602 
WWUS45 KRIW 080405
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
905 PM MST FRI DEC 7 2012

...WINTER STORM TO IMPACT NORTH AND WEST TONIGHT THROUGH SATURDAY
NIGHT...

.SNOW WILL CONTINUE IN THE WEST TONIGHT AND SATURDAY. THE
COMBINATION OF SNOW...STRONG WIND...BLOWING SNOW AND SHARPLY
COLDER TEMPERATURES WILL COMBINE TO PRODUCE A HIGH IMPACT WINTER
STORM FOR PARTS OF THE WEST TONIGHT THROUGH SATURDAY. A STRONG
COLD FRONT WILL BRING SNOW AND STRENGTHENING NORTHWEST WIND TO THE
BIG HORN MOUNTAINS AND NORTHEAST JOHNSON COUNTY SATURDAY MORNING
THROUGH SATURDAY NIGHT.

WYZ012-081230-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
905 PM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE
  THROUGH SATURDAY MORNING BEFORE DECREASING. THE WIND WILL BEGIN
  INCREASING THIS EVENING AND PEAK OVERNIGHT BEFORE GRADUALLY
  DECREASING BY MID MORNING SATURDAY. 

* SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS ON NORTHWEST FACING SLOPES. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 50 
  TO 60 MPH REDUCING THE VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS WILL BE QUITE TREACHEROUS 
  TONIGHT WITH TETON PASS LIKELY SLICK AND SNOW COVERED WITH 
  SHARPLY REDUCED VISIBILITY IN SNOW AND WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-081230-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
905 PM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY.

* SUMMARY AND TIMING...SNOW AND WIND WILL BE ON THE INCREASE
  TONIGHT AND CONTINUE THE MAJORITY OF SATURDAY.

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT 
  PASS...WILL LIKELY BECOME QUITE TREACHEROUS TONIGHT AND 
  CONTINUE INTO SATURDAY WITH THE SNOW AND STRONG WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-081230-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
905 PM MST FRI DEC 7 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY.

* SUMMARY AND TIMING...SNOW WILL INCREASE IN INTENSITY
  TONIGHT...BECOMING HEAVY AT TIMES...AND CONTINUE THROUGH THE DAY
  SATURDAY. THE COMBINATION OF THE SNOW AND STRONG SOUTHWEST WINDS
  MAY PRODUCE CONSIDERABLE BLOWING SNOW WITH TIME.

* SNOW ACCUMULATIONS...6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS 
  AROUND ALPINE AND FROM THAYNE TO BEDFORD. 

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL LIKELY BECOME 
  SLICK TONIGHT AND CONTINUE THROUGH SATURDAY. THE STRONG WINDS 
  AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS 
  STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ008-009-081230-
/O.EXB.KRIW.WW.Y.0034.121208T1200Z-121209T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM SATURDAY TO 5 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 AM SATURDAY TO 5 AM MST SUNDAY.

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH
  THE AREA EARLY SATURDAY MORNING. MODERATE TO LOCALLY HEAVY SNOW
  WILL ACCOMPANY THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND
  THROUGH THE DAY. 

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 50
  MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN SNOW AND BLOWING
  SNOW. WIND CHILL TEMPERATURES OF 25 TO 35 BELOW ZERO.

* IMPACTS...TRAVEL OVER U.S. 16 OVER POWDER RIVER PASS AND OTHER
  MOUNTAIN ROADS WILL BECOME INCREASINGLY HAZARDOUS THROUGH THE
  DAY SATURDAY IN SNOW AND BLOWING SNOW. BITTERLY COLD WIND CHILL
  TEMPERATURES WILL RESULT IN FROSTBITE IN 10 TO 20 MINUTES ON
  EXPOSED SKIN.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-081230-
/O.EXB.KRIW.WW.Y.0034.121208T1200Z-121209T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM SATURDAY TO 5 AM
MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 AM SATURDAY TO 5 AM MST SUNDAY.

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH
  THE AREA EARLY SATURDAY MORNING. LIGHT TO MODERATE SNOW WILL
  ACCOMPANY THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND
  THROUGH THE DAY.

* SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WIND AND VISIBILITY...NORTHWEST WIND INCREASING TO 25 TO 35 MPH
  WITH GUSTS NEAR 50 MPH IN THE AFTERNOON. THE VISIBILITY WILL BE
  ZERO AT TIMES IN SNOW AND BLOWING SNOW. WIND CHILL TEMPERATURES
  OF 10 TO 20 BELOW ZERO SATURDAY NIGHT. 

* IMPACTS...TRAVEL ALONG INTERSTATES 25 AND 90 AND OTHER STATE
  ROUTES WILL BECOME SLICK ON SATURDAY. THE SLICK ROADS AND
  SHARPLY REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW
  WILL DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATES 25
  AND 90 SATURDAY AND SATURDAY NIGHT. BITTERLY COLD WIND CHILL
  TEMPERATURES WILL RESULT IN FROSTBITE WITHIN 30 MINUTES ON
  EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-002-081230-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...MODERATE TO LOCALLY HEAVY SNOW WILL
  CONTINUE OVERNIGHT. AREAS OF STRONG WEST TO SOUTHWEST WIND WILL
  PRODUCE AREAS OF BLOWING AND DRIFTING SNOW.  

* SNOW ACCUMULATIONS...3 TO 6 INCHES IN THE NORTHERN VALLEYS 
  WITH 6 TO 12 INCHES IN THE MOUNTAINS WITH LOCALLY HIGHER 
  AMOUNTS IN THE SOUTHERN MOUNTAINS. 

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 25 TO 35 MPH 
  WITH GUSTS TO 50 MPH WILL REDUCE VISIBILITY TO UNDER ONE HALF 
  MILE AT TIMES. EVEN HIGHER WINDS ARE POSSIBLE OVER THE PEAKS. 

* IMPACTS...TRAVEL THROUGH WILL LIKELY BECOME SLICK TONIGHT AND 
  CONTINUE THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW 
  COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ013-081230-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...THE SNOW AND WIND WILL CONTINUE TO
  INCREASE THIS EVENING AND CONTINUE INTO SATURDAY MORNING.

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS 
  ON THE NORTH END OF THE VALLEY. 

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 15 TO 30 MPH 
  WITH GUSTS TO 45 MPH. VISIBILITY CAN BE REDUCED TO UNDER ONE 
  QUARTER MILE AT TIMES...ESPECIALLY NORTH OF THE TOWN OF 
  JACKSON. 

* IMPACTS...TRAVEL THROUGH THE JACKSON VALLEY WILL BECOME
  INCREASINGLY SLICK THIS EVENING AND CONTINUE THROUGH SATURDAY
  MORNING. THE STRONG WINDS AND SNOW COMBINED WILL DEFINITELY
  HAMPER TRAVEL DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ025-081230-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP AND BECOME WIDESPREAD 
  THIS EVENING. THE SNOW MAY BE MODERATE TO HEAVY AT TIMES LATER 
  TONIGHT AND SATURDAY MORNING...ESPECIALLY FROM CORA JUNCTION 
  TO BONDURANT. THE SNOW WILL BE BLOWN ABOUT BY STRONG NORTHWEST 
  WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH UP TO 8 INCHES BETWEEN 
  CORA JUNCTION AND BONDURANT. 

* WIND AND VISIBILITY...NORTHWEST 20 TO 30 MPH WITH GUSTS TO 40 
  MPH.

* IMPACTS...TRAVEL BETWEEN PINEDALE AND BONDURANT WILL BECOME 
  SLICK BY THIS EVENING AND CONTINUE THROUGH SATURDAY MORNING. 
  THE STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER 
  TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ014-015-081230-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP AND BECOME WIDESPREAD 
  THIS EVENING. THE SNOW MAY BE MODERATE TO HEAVY AT TIMES LATER 
  TONIGHT AND SATURDAY MORNING. THE SNOW WILL BE BLOWN ABOUT BY 
  STRONG WEST WINDS OF 30 TO 40 MPH WITH GUSTS TO 50 MPH. 

* SNOW ACCUMULATIONS...5 TO 10 INCHES WITH LOCALLY HIGHER 
  AMOUNTS IN THE NORTHWEST PART OF THE RANGE ABOVE CORA. 

* WIND AND VISIBILITY...WEST 30 TO 40 MPH WITH GUSTS TO 50 MPH 
  CAUSING THE VISIBILITY TO DROP TO NEAR ZERO AT TIMES OVER 
  SOUTH PASS. 

* IMPACTS...TRAVEL THROUGH THE MOUNTAINS AND OVER SOUTH PASS 
  TONIGHT AND SATURDAY MORNING WILL BECOME SLICK WITH SHARPLY 
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ027-081230-
/O.CON.KRIW.WW.Y.0034.121208T0600Z-121209T0000Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP LATER THIS EVENING AND 
  CONTINUE THROUGH THE DAY SATURDAY. WEST WIND WILL ALSO BE ON 
  THE INCREASE OVERNIGHT. 

* SNOW ACCUMULATIONS...3 TO 5 INCHES AROUND KEMMERER WITH 6 TO 9 
  INCHES IN COKEVILLE. 

* WIND AND VISIBILITY...WEST BECOMING WEST 25 TO 35 MPH WITH 
  GUSTS TO 50 MPH REDUCING THE VISIBILITY TO UNDER ONE QUARTER 
  MILE AT TIMES. 

* IMPACTS...TRAVEL BETWEEN KEMMERER AND COKEVILLE WILL BECOME 
  SLICK LATER THIS EVENING AND CONTINUE THROUGH SATURDAY. THE 
  STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL 
  DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ028>030-081230-
/O.CON.KRIW.WW.Y.0034.121208T1200Z-121209T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
905 PM MST FRI DEC 7 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM
MST SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST
SATURDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST EAST 
  ACROSS THE AREA ON SATURDAY WITH LIGHT SNOW AND VERY STRONG 
  WEST WINDS. THE COMBINATION OF AN INCH OR TWO OF SNOW...VERY 
  STRONG WINDS AND SLICK ROADS WILL DEFINITELY HAMPER TRAVEL. 

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WIND AND VISIBILITY...WEST BECOMING WEST 30 TO 40 MPH WITH 
  GUSTS OF 50 TO 60 MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN 
  SNOW AND BLOWING SNOW. 

* IMPACTS...TRAVEL ALONG INTERSTATE 80 AND OTHER STATE ROUTES 
  WILL BECOME SLICK ON SATURDAY. THE SLICK ROADS AND SHARPLY 
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL 
  DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATE 80 ON 
  SATURDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

AEM
572 
WWUS45 KRIW 080917
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
217 AM MST SAT DEC 8 2012

...WINTER STORM TO IMPACT NORTH AND WEST THROUGH SATURDAY
NIGHT...

.SNOW WILL CONTINUE IN THE WEST INTO SATURDAY. THE COMBINATION OF
SNOW...STRONG WIND...BLOWING SNOW AND SHARPLY COLDER TEMPERATURES
WILL COMBINE TO PRODUCE A HIGH IMPACT WINTER STORM FOR PARTS OF
THE WEST THROUGH SATURDAY. A STRONG COLD FRONT WILL BRING SNOW
AND STRENGTHENING NORTHWEST WIND TO THE BIG HORN MOUNTAINS AND
NORTHEAST JOHNSON COUNTY THIS MORNING THROUGH SATURDAY NIGHT.

WYZ012-081800-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
217 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THIS
  MORNING BEFORE DECREASING. THE WIND WILL PEAK OVERNIGHT BEFORE
  GRADUALLY DECREASING BY MID MORNING SATURDAY.

* SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS ON NORTHWEST FACING SLOPES. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 50 
  TO 60 MPH REDUCING THE VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS WILL BE QUITE TREACHEROUS
  INTO THIS MORNING WITH TETON PASS SLICK AND SNOW COVERED WITH
  SHARPLY REDUCED VISIBILITY IN SNOW AND WIND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-082200-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
217 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW AND WIND WILL CONTINUE THROUGH MUCH OF
  SATURDAY.

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT
  PASS...WILL LIKELY BE QUITE TREACHEROUS TODAY WITH THE SNOW AND
  STRONG WIND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-082200-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
217 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE DAY SATURDAY
  BEFORE TAPERING OFF LATE. THE COMBINATION OF THE SNOW AND STRONG
  SOUTHWEST WINDS MAY PRODUCE CONSIDERABLE BLOWING SNOW WITH TIME.

* SNOW ACCUMULATIONS...6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS 
  AROUND ALPINE AND FROM THAYNE TO BEDFORD. 

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL BE SLICK THROUGH
  THIS AFTERNOON. THE STRONG WINDS AND SNOW COMBINED WILL
  DEFINITELY HAMPER TRAVEL DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-002-081800-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...MODERATE TO LOCALLY HEAVY SNOW WILL
  CONTINUE BEFORE TAPERING OFF THIS MORNING. AREAS OF STRONG WEST
  TO SOUTHWEST WIND WILL PRODUCE AREAS OF BLOWING AND DRIFTING
  SNOW.

* SNOW ACCUMULATIONS...3 TO 6 INCHES IN THE NORTHERN VALLEYS 
  WITH 6 TO 12 INCHES IN THE MOUNTAINS WITH LOCALLY HIGHER 
  AMOUNTS IN THE SOUTHERN MOUNTAINS. 

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 25 TO 35 MPH 
  WITH GUSTS TO 50 MPH WILL REDUCE VISIBILITY TO UNDER ONE HALF 
  MILE AT TIMES. EVEN HIGHER WINDS ARE POSSIBLE OVER THE PEAKS. 

* IMPACTS...TRAVEL THROUGH WILL BE SLICK THROUGH THIS MORNING.
  THE STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER TRAVEL
  DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ013-081800-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...THE SNOW AND WIND WILL CONTINUE INTO MID
  MORNING BEFORE TAPERING OFF.

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS 
  ON THE NORTH END OF THE VALLEY. 

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 15 TO 30 MPH 
  WITH GUSTS TO 45 MPH. VISIBILITY CAN BE REDUCED TO UNDER ONE 
  QUARTER MILE AT TIMES...ESPECIALLY NORTH OF THE TOWN OF 
  JACKSON. 

* IMPACTS...TRAVEL THROUGH THE JACKSON VALLEY WILL BE SLICK THIS
  THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW COMBINED
  WILL HAMPER TRAVEL DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ025-081800-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE INTO SATURDAY MORNING
  AND BE MODERATE TO HEAVY AT TIMES...ESPECIALLY FROM CORA
  JUNCTION TO BONDURANT. THE SNOW WILL BE BLOWN ABOUT BY STRONG
  NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH.

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH UP TO 8 INCHES BETWEEN 
  CORA JUNCTION AND BONDURANT. 

* WIND AND VISIBILITY...NORTHWEST 20 TO 30 MPH WITH GUSTS TO 40 
  MPH. 

* IMPACTS...TRAVEL BETWEEN PINEDALE AND BONDURANT WILL BE SLICK BY
  THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW COMBINED
  WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ014-015-081800-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP AND BECOME WIDESPREAD 
  THIS EVENING. THE SNOW MAY BE MODERATE TO HEAVY AT TIMES LATER 
  TONIGHT AND SATURDAY MORNING. THE SNOW WILL BE BLOWN ABOUT BY 
  STRONG WEST WINDS OF 30 TO 40 MPH WITH GUSTS TO 50 MPH. 

* SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS
  IN THE NORTHWEST PART OF THE RANGE ABOVE CORA.

* WIND AND VISIBILITY...WEST 30 TO 40 MPH WITH GUSTS TO 50 MPH 
  CAUSING THE VISIBILITY TO DROP TO NEAR ZERO AT TIMES OVER 
  SOUTH PASS. 

* IMPACTS...TRAVEL THROUGH THE MOUNTAINS AND OVER SOUTH PASS
  THROUGH SATURDAY MORNING WILL BE SLICK WITH SHARPLY REDUCED
  VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ027-082200-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T0000Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP WILL CONTINUE THROUGH THE
  DAY SATURDAY.

* SNOW ACCUMULATIONS...3 TO 5 INCHES AROUND KEMMERER WITH 6 TO 9 
  INCHES IN COKEVILLE. 

* WIND AND VISIBILITY...WEST BECOMING WEST 25 TO 35 MPH WITH 
  GUSTS TO 50 MPH REDUCING THE VISIBILITY TO UNDER ONE QUARTER 
  MILE AT TIMES. 

* IMPACTS...TRAVEL BETWEEN KEMMERER AND COKEVILLE WILL BE SLICK THROUGH
  SATURDAY. THE STRONG WINDS AND SNOW COMBINED WILL DEFINITELY
  HAMPER TRAVEL DURING THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ028>030-082200-
/O.CON.KRIW.WW.Y.0034.121208T1200Z-121209T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST EAST 
  ACROSS THE AREA TODAY WITH LIGHT SNOW AND VERY STRONG 
  WEST WINDS. THE COMBINATION OF AN INCH OR TWO OF SNOW...VERY 
  STRONG WINDS AND SLICK ROADS WILL DEFINITELY HAMPER TRAVEL. 

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WIND AND VISIBILITY...WEST BECOMING WEST 30 TO 40 MPH WITH 
  GUSTS OF 50 TO 60 MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN 
  SNOW AND BLOWING SNOW. 

* IMPACTS...TRAVEL ALONG INTERSTATE 80 AND OTHER STATE ROUTES 
  WILL BECOME SLICK TODAY. THE SLICK ROADS AND SHARPLY 
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL 
  DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATE 80 ON 
  SATURDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ008-009-082200-
/O.CON.KRIW.WW.Y.0034.121208T1200Z-121209T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH
  THE AREA THIS MORNING. MODERATE TO LOCALLY HEAVY SNOW WILL
  ACCOMPANY THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND
  THROUGH THE DAY.

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 50 
  MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN SNOW AND BLOWING 
  SNOW. WIND CHILL TEMPERATURES OF 25 TO 35 BELOW ZERO. 

* IMPACTS...TRAVEL OVER U.S. 16 OVER POWDER RIVER PASS AND OTHER 
  MOUNTAIN ROADS WILL BECOME INCREASINGLY HAZARDOUS THROUGH THE 
  DAY TODAY IN SNOW AND BLOWING SNOW. BITTERLY COLD WIND 
  CHILL TEMPERATURES WILL RESULT IN FROSTBITE IN 10 TO 20 
  MINUTES ON EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-082200-
/O.CON.KRIW.WW.Y.0034.121208T1200Z-121209T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
217 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH
  THE AREA THIS MORNING. LIGHT TO MODERATE SNOW WILL ACCOMPANY THE
  FRONT ALONG WITH STRENGTHENING NORTHWEST WIND THROUGH THE DAY.

* SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WIND AND VISIBILITY...NORTHWEST WIND INCREASING TO 25 TO 35 
  MPH WITH GUSTS NEAR 50 MPH IN THE AFTERNOON. THE VISIBILITY 
  WILL BE ZERO AT TIMES IN SNOW AND BLOWING SNOW. WIND CHILL 
  TEMPERATURES OF 10 TO 20 BELOW ZERO SATURDAY NIGHT. 

* IMPACTS...TRAVEL ALONG INTERSTATES 25 AND 90 AND OTHER STATE 
  ROUTES WILL BECOME SLICK ON TODAY. THE SLICK ROADS AND 
  SHARPLY REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW 
  WILL DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATES 
  25 AND 90 SATURDAY AND SATURDAY NIGHT. BITTERLY COLD WIND 
  CHILL TEMPERATURES WILL RESULT IN FROSTBITE WITHIN 30 MINUTES 
  ON EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
891 
WWUS45 KRIW 080943
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
243 AM MST SAT DEC 8 2012

...WINTER STORM TO IMPACT NORTH AND WEST THROUGH SATURDAY NIGHT...

.SNOW WILL CONTINUE IN THE WEST INTO SATURDAY. THE COMBINATION OF
SNOW...STRONG WIND...BLOWING SNOW AND SHARPLY COLDER TEMPERATURES
WILL COMBINE TO PRODUCE A HIGH IMPACT WINTER STORM FOR PARTS OF
THE WEST THROUGH SATURDAY. A STRONG COLD FRONT WILL BRING SNOW
AND STRENGTHENING NORTHWEST WIND TO THE BIG HORN MOUNTAINS AND
NORTHEAST JOHNSON COUNTY THIS MORNING THROUGH SATURDAY NIGHT.

WYZ012-081745-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
243 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THIS
  MORNING BEFORE DECREASING. THE WIND WILL PEAK EARLY THIS MORNING
  BEFORE GRADUALLY DECREASING BY MID MORNING TODAY.

* SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS ON NORTHWEST FACING SLOPES. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 50 
  TO 60 MPH REDUCING THE VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS WILL BE QUITE TREACHEROUS 
  INTO THIS MORNING WITH TETON PASS SLICK AND SNOW COVERED WITH 
  SHARPLY REDUCED VISIBILITY IN SNOW AND WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-081745-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
243 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW AND WIND WILL CONTINUE THROUGH MUCH 
  OF SATURDAY. 

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT 
  PASS...WILL LIKELY BE QUITE TREACHEROUS TODAY WITH THE SNOW 
  AND STRONG WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-081745-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
243 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE DAY 
  SATURDAY BEFORE TAPERING OFF LATE. THE COMBINATION OF THE SNOW 
  AND STRONG SOUTHWEST WINDS MAY PRODUCE CONSIDERABLE BLOWING 
  SNOW WITH TIME. 

* SNOW ACCUMULATIONS...6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS 
  AROUND ALPINE AND FROM THAYNE TO BEDFORD. 

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL BE SLICK THROUGH 
  THIS AFTERNOON. THE STRONG WINDS AND SNOW COMBINED WILL 
  DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-002-081745-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...MODERATE TO LOCALLY HEAVY SNOW WILL 
  CONTINUE BEFORE TAPERING OFF THIS MORNING. AREAS OF STRONG 
  WEST TO SOUTHWEST WIND WILL PRODUCE AREAS OF BLOWING AND 
  DRIFTING SNOW. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES IN THE NORTHERN VALLEYS 
  WITH 6 TO 12 INCHES IN THE MOUNTAINS WITH LOCALLY HIGHER 
  AMOUNTS IN THE SOUTHERN MOUNTAINS. 

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 25 TO 35 MPH 
  WITH GUSTS TO 50 MPH WILL REDUCE VISIBILITY TO UNDER ONE HALF 
  MILE AT TIMES. EVEN HIGHER WINDS ARE POSSIBLE OVER THE PEAKS. 

* IMPACTS...TRAVEL THROUGH WILL BE SLICK THROUGH THIS MORNING. 
  THE STRONG WINDS AND SNOW COMBINED WILL DEFINITELY HAMPER 
  TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ013-081745-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...THE SNOW AND WIND WILL CONTINUE INTO MID 
  MORNING BEFORE TAPERING OFF. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS 
  ON THE NORTH END OF THE VALLEY. 

* WIND AND VISIBILITY...SOUTHWEST BECOMING WEST 15 TO 30 MPH 
  WITH GUSTS TO 45 MPH. VISIBILITY CAN BE REDUCED TO UNDER ONE 
  QUARTER MILE AT TIMES...ESPECIALLY NORTH OF THE TOWN OF 
  JACKSON. 

* IMPACTS...TRAVEL THROUGH THE JACKSON VALLEY WILL BE SLICK THIS 
  THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW COMBINED 
  WILL HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ025-081745-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE INTO SATURDAY MORNING 
  AND BE MODERATE TO HEAVY AT TIMES...ESPECIALLY FROM CORA 
  JUNCTION TO BONDURANT. THE SNOW WILL BE BLOWN ABOUT BY STRONG 
  NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES WITH UP TO 8 INCHES BETWEEN 
  CORA JUNCTION AND BONDURANT. 

* WIND AND VISIBILITY...NORTHWEST 20 TO 30 MPH WITH GUSTS TO 40 
  MPH. 

* IMPACTS...TRAVEL BETWEEN PINEDALE AND BONDURANT WILL BE SLICK 
  BY THROUGH SATURDAY MORNING. THE STRONG WINDS AND SNOW 
  COMBINED WILL DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ014-015-081745-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP AND BECOME WIDESPREAD 
  THIS EVENING. THE SNOW MAY BE MODERATE TO HEAVY AT TIMES LATER 
  TONIGHT AND SATURDAY MORNING. THE SNOW WILL BE BLOWN ABOUT BY 
  STRONG WEST WINDS OF 30 TO 40 MPH WITH GUSTS TO 50 MPH. 

* SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER 
  AMOUNTS IN THE NORTHWEST PART OF THE RANGE ABOVE CORA. 

* WIND AND VISIBILITY...WEST 30 TO 40 MPH WITH GUSTS TO 50 MPH 
  CAUSING THE VISIBILITY TO DROP TO NEAR ZERO AT TIMES OVER 
  SOUTH PASS. 

* IMPACTS...TRAVEL WILL BE SLICK THIS MORNING WITH SHARPLY REDUCED
  VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW. AS OF 217 AM
  THIS MORNING...WYOMING DOT HAS CLOSED SOUTH PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ027-081745-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T0000Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP WILL CONTINUE THROUGH 
  THE DAY SATURDAY. 

* SNOW ACCUMULATIONS...3 TO 5 INCHES AROUND KEMMERER WITH 6 TO 9 
  INCHES IN COKEVILLE. 

* WIND AND VISIBILITY...WEST BECOMING WEST 25 TO 35 MPH WITH 
  GUSTS TO 50 MPH REDUCING THE VISIBILITY TO UNDER ONE QUARTER 
  MILE AT TIMES. 

* IMPACTS...TRAVEL BETWEEN KEMMERER AND COKEVILLE WILL BE SLICK 
  THROUGH SATURDAY. THE STRONG WINDS AND SNOW COMBINED WILL 
  DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ028>030-081745-
/O.CON.KRIW.WW.Y.0034.121208T1200Z-121209T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST EAST 
  ACROSS THE AREA TODAY WITH LIGHT SNOW AND VERY STRONG WEST 
  WINDS. THE COMBINATION OF AN INCH OR TWO OF SNOW...VERY STRONG 
  WINDS AND SLICK ROADS WILL DEFINITELY HAMPER TRAVEL. 

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WIND AND VISIBILITY...WEST BECOMING WEST 30 TO 40 MPH WITH 
  GUSTS OF 50 TO 60 MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN 
  SNOW AND BLOWING SNOW. 

* IMPACTS...TRAVEL ALONG INTERSTATE 80 AND OTHER STATE ROUTES 
  WILL BECOME SLICK TODAY. THE SLICK ROADS AND SHARPLY REDUCED 
  VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL DEFINITELY 
  MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATE 80 ON SATURDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ008-009-081745-
/O.CON.KRIW.WW.Y.0034.121208T1200Z-121209T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH 
  THE AREA THIS MORNING. MODERATE TO LOCALLY HEAVY SNOW WILL 
  ACCOMPANY THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND 
  THROUGH THE DAY. 

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 50 
  MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN SNOW AND BLOWING 
  SNOW. WIND CHILL TEMPERATURES OF 25 TO 35 BELOW ZERO. 

* IMPACTS...TRAVEL OVER U.S. 16 OVER POWDER RIVER PASS AND OTHER 
  MOUNTAIN ROADS WILL BECOME INCREASINGLY HAZARDOUS THROUGH THE 
  DAY TODAY IN SNOW AND BLOWING SNOW. BITTERLY COLD WIND CHILL 
  TEMPERATURES WILL RESULT IN FROSTBITE IN 10 TO 20 MINUTES ON 
  EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-081745-
/O.CON.KRIW.WW.Y.0034.121208T1200Z-121209T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
243 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH 
  THE AREA THIS MORNING. LIGHT TO MODERATE SNOW WILL ACCOMPANY 
  THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND THROUGH THE 
  DAY. 

* SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WIND AND VISIBILITY...NORTHWEST WIND INCREASING TO 25 TO 35 
  MPH WITH GUSTS NEAR 50 MPH IN THE AFTERNOON. THE VISIBILITY 
  WILL BE ZERO AT TIMES IN SNOW AND BLOWING SNOW. WIND CHILL 
  TEMPERATURES OF 10 TO 20 BELOW ZERO SATURDAY NIGHT. 

* IMPACTS...TRAVEL ALONG INTERSTATES 25 AND 90 AND OTHER STATE 
  ROUTES WILL BECOME SLICK ON TODAY. THE SLICK ROADS AND SHARPLY 
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL 
  DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATES 25 
  AND 90 SATURDAY AND SATURDAY NIGHT. BITTERLY COLD WIND CHILL 
  TEMPERATURES WILL RESULT IN FROSTBITE WITHIN 30 MINUTES ON 
  EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
057 
WWUS45 KRIW 081801
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1101 AM MST SAT DEC 8 2012

...WINTER STORM TO IMPACT NORTH AND SOUTHWEST THROUGH TONIGHT...

.SNOW WILL CONTINUE IN THE SOUTHWEST TODAY. THE COMBINATION OF
SNOW...STRONG WIND...BLOWING SNOW AND SHARPLY COLDER TEMPERATURES
WILL COMBINE TO PRODUCE A HIGH IMPACT WINTER STORM FOR PARTS OF
THE SOUTHWEST THROUGH TODAY. A STRONG COLD FRONT WILL BRING SNOW
AND STRENGTHENING NORTHWEST WIND TO THE BIG HORN MOUNTAINS AND
NORTHEAST JOHNSON COUNTY THROUGH TONIGHT.

WYZ012-081915-
/O.EXP.KRIW.WS.W.0010.000000T0000Z-121208T1800Z/
TETON AND GROS VENTRE MOUNTAINS-
1101 AM MST SAT DEC 8 2012

...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...

THE WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING. 


$$

WYZ001-002-081915-
/O.EXP.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING. 



$$

WYZ013-081915-
/O.EXP.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING. 



$$

WYZ025-081915-
/O.EXP.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING. 



$$

WYZ014-015-081915-
/O.EXP.KRIW.WW.Y.0034.000000T0000Z-121208T1800Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS
MORNING. 



$$

WYZ024-090000-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
1101 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW AND WIND WILL CONTINUE THROUGH MUCH OF
  TODAY.

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT 
  PASS...WILL LIKELY BE QUITE TREACHEROUS TODAY WITH THE SNOW 
  AND STRONG WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-090000-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
1101 AM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE DAY 
  SATURDAY BEFORE TAPERING OFF LATE. THE COMBINATION OF THE SNOW 
  AND STRONG SOUTHWEST WINDS MAY PRODUCE CONSIDERABLE BLOWING 
  SNOW WITH TIME. 

* SNOW ACCUMULATIONS...6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS 
  AROUND ALPINE AND FROM THAYNE TO BEDFORD. 

* WIND AND VISIBILITY...SOUTHWEST 25 TO 35 MPH REDUCING THE 
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL BE SLICK THROUGH 
  THIS AFTERNOON. THE STRONG WINDS AND SNOW COMBINED WILL 
  DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ027-090000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T0000Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL DEVELOP WILL CONTINUE THROUGH 
  THE DAY SATURDAY. 

* SNOW ACCUMULATIONS...3 TO 5 INCHES AROUND KEMMERER WITH 6 TO 9 
  INCHES IN COKEVILLE. 

* WIND AND VISIBILITY...WEST BECOMING WEST 25 TO 35 MPH WITH 
  GUSTS TO 50 MPH REDUCING THE VISIBILITY TO UNDER ONE QUARTER 
  MILE AT TIMES. 

* IMPACTS...TRAVEL BETWEEN KEMMERER AND COKEVILLE WILL BE SLICK 
  THROUGH SATURDAY. THE STRONG WINDS AND SNOW COMBINED WILL 
  DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ028>030-090000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST EAST 
  ACROSS THE AREA TODAY WITH LIGHT SNOW AND VERY STRONG WEST 
  WINDS. THE COMBINATION OF AN INCH OR TWO OF SNOW...VERY STRONG 
  WINDS AND SLICK ROADS WILL DEFINITELY HAMPER TRAVEL. 

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WIND AND VISIBILITY...WEST BECOMING WEST 30 TO 40 MPH WITH 
  GUSTS OF 50 TO 60 MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN 
  SNOW AND BLOWING SNOW. 

* IMPACTS...TRAVEL ALONG INTERSTATE 80 AND OTHER STATE ROUTES 
  WILL BECOME SLICK TODAY. THE SLICK ROADS AND SHARPLY REDUCED 
  VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL DEFINITELY 
  MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATE 80 ON SATURDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ008-009-090215-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH 
  THE AREA THIS MORNING. MODERATE TO LOCALLY HEAVY SNOW WILL 
  ACCOMPANY THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND 
  THROUGH THE DAY. 

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 50 
  MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN SNOW AND BLOWING 
  SNOW. WIND CHILL TEMPERATURES OF 25 TO 35 BELOW ZERO. 

* IMPACTS...TRAVEL OVER U.S. 16 OVER POWDER RIVER PASS AND OTHER 
  MOUNTAIN ROADS WILL BECOME INCREASINGLY HAZARDOUS THROUGH THE 
  DAY TODAY IN SNOW AND BLOWING SNOW. BITTERLY COLD WIND CHILL 
  TEMPERATURES WILL RESULT IN FROSTBITE IN 10 TO 20 MINUTES ON 
  EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-090215-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
1101 AM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH 
  THE AREA THIS MORNING. LIGHT TO MODERATE SNOW WILL ACCOMPANY 
  THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND THROUGH THE 
  DAY. 

* SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WIND AND VISIBILITY...NORTHWEST WIND INCREASING TO 25 TO 35 
  MPH WITH GUSTS NEAR 50 MPH IN THE AFTERNOON. THE VISIBILITY 
  WILL BE ZERO AT TIMES IN SNOW AND BLOWING SNOW. WIND CHILL 
  TEMPERATURES OF 10 TO 20 BELOW ZERO SATURDAY NIGHT. 

* IMPACTS...TRAVEL ALONG INTERSTATES 25 AND 90 AND OTHER STATE 
  ROUTES WILL BECOME SLICK ON TODAY. THE SLICK ROADS AND SHARPLY 
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL 
  DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATES 25 
  AND 90 SATURDAY AND SATURDAY NIGHT. BITTERLY COLD WIND CHILL 
  TEMPERATURES WILL RESULT IN FROSTBITE WITHIN 30 MINUTES ON 
  EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
396 
WWUS45 KRIW 082105
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
205 PM MST SAT DEC 8 2012

...WINTER STORM TO IMPACT NORTH THROUGH TONIGHT...

.SNOW WILL CONTINUE IN THE SOUTHWEST TODAY. THE COMBINATION OF
SNOW...STRONG WIND...BLOWING SNOW AND SHARPLY COLDER TEMPERATURES
WILL COMBINE TO PRODUCE A HIGH IMPACT WINTER STORM FOR PARTS OF
THE SOUTHWEST THROUGH TODAY. A STRONG COLD FRONT WILL BRING SNOW
AND STRENGTHENING NORTHWEST WIND TO THE BIG HORN MOUNTAINS AND
NORTHEAST JOHNSON COUNTY THROUGH TONIGHT.

WYZ024-090000-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
SALT RIVER AND WYOMING RANGES-
205 PM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW AND WIND WILL CONTINUE THROUGH MUCH 
  OF TODAY. 

* SNOW ACCUMULATIONS...8 TO 16 INCHES.

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH. 
  EVEN STRONGER WINDS ARE EXPECTED AT PEAK LEVEL. THE 
  COMBINATION OF THE SNOW AND WIND WILL LIKELY REDUCE THE 
  VISIBILITY TO NEAR ZERO AT TIMES. 

* IMPACTS...TRAVEL INTO THE MOUNTAINS...INCLUDING OVER SALT 
  PASS...WILL LIKELY BE QUITE TREACHEROUS TODAY WITH THE SNOW 
  AND STRONG WIND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ023-090000-
/O.CON.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
205 PM MST SAT DEC 8 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE TO TAPER OFF THIS
  AFTERNOON. THE COMBINATION OF THE SNOW AND STRONG SOUTHWEST
  WINDS MAY PRODUCE CONSIDERABLE BLOWING SNOW AT TIMES.

* SNOW ACCUMULATIONS...6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS 
  AROUND ALPINE AND FROM THAYNE TO BEDFORD. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH REDUCING THE
  VISIBILITY UNDER ONE QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL THROUGH THE STAR VALLEY WILL BE SLICK THROUGH 
  THIS AFTERNOON. THE STRONG WINDS AND SNOW COMBINED WILL 
  DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ027-090000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T0000Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
205 PM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE TO TAPER OFF THIS
  AFTERNOON. THE COMBINATION OF THE SNOW AND STRONG SOUTHWEST
  WINDS MAY PRODUCE BLOWING SNOW AT TIMES.

* SNOW ACCUMULATIONS...3 TO 5 INCHES AROUND KEMMERER WITH 6 TO 9 
  INCHES IN COKEVILLE. 

* WIND AND VISIBILITY...NORTHWEST 25 TO 35 MPH WITH GUSTS TO 50 MPH
  REDUCING THE VISIBILITY TO UNDER ONE QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL BETWEEN KEMMERER AND COKEVILLE WILL BE SLICK 
  THROUGH SATURDAY. THE STRONG WINDS AND SNOW COMBINED WILL 
  DEFINITELY HAMPER TRAVEL DURING THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ028>030-090000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T0000Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
205 PM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST EAST 
  ACROSS THE AREA TODAY WITH LIGHT SNOW AND VERY STRONG WEST 
  WINDS. THE COMBINATION OF AN INCH OR TWO OF SNOW...VERY STRONG 
  WINDS AND SLICK ROADS WILL DEFINITELY HAMPER TRAVEL. 

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WIND AND VISIBILITY...WEST BECOMING WEST 30 TO 40 MPH WITH 
  GUSTS OF 50 TO 60 MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN 
  SNOW AND BLOWING SNOW. 

* IMPACTS...TRAVEL ALONG INTERSTATE 80 AND OTHER STATE ROUTES 
  WILL BECOME SLICK TODAY. THE SLICK ROADS AND SHARPLY REDUCED 
  VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL DEFINITELY 
  MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATE 80 ON SATURDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ008-009-090000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
205 PM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH
  THROUGH THE AREA. MODERATE TO LOCALLY HEAVY SNOW WILL ACCOMPANY
  THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND THROUGH TONIGHT.

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 50 
  MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN SNOW AND BLOWING 
  SNOW. WIND CHILL TEMPERATURES OF 25 TO 35 BELOW ZERO. 

* IMPACTS...TRAVEL OVER U.S. 16 OVER POWDER RIVER PASS AND OTHER
  MOUNTAIN ROADS WILL BECOME INCREASINGLY HAZARDOUS THROUGH THE NIGHT.
  BITTERLY COLD WIND CHILL TEMPERATURES WILL RESULT IN FROSTBITE
  IN 10 TO 20 MINUTES ON EXPOSED SKIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-090000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
205 PM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH
  THE AREA. LIGHT TO MODERATE SNOW WILL ACCOMPANY THE FRONT ALONG
  WITH STRENGTHENING NORTHWEST WIND THROUGH THE NIGHT.

* SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WIND AND VISIBILITY...NORTHWEST WIND INCREASING TO 25 TO 35 MPH
  WITH GUSTS NEAR 50 MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN
  SNOW AND BLOWING SNOW. WIND CHILL TEMPERATURES OF 10 TO 20 BELOW
  ZERO TONIGHT.

* IMPACTS...TRAVEL ALONG INTERSTATES 25 AND 90 AND OTHER STATE
  ROUTES WILL BECOME SLICK AND ICY. THE SLICK ROADS AND SHARPLY
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL
  DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATES 25 AND
  90 TONIGHT. BITTERLY COLD WIND CHILL TEMPERATURES WILL RESULT IN
  FROSTBITE WITHIN 30 MINUTES ON EXPOSED SKIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$
298 
WWUS45 KRIW 082223
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
323 PM MST SAT DEC 8 2012

...WINTER STORM TO IMPACT NORTH THROUGH TONIGHT...

.SNOW WILL CONTINUE IN THE NORTH TONIGHT. THE COMBINATION OF
SNOW...STRONG WIND...BLOWING SNOW AND SHARPLY COLDER TEMPERATURES
WILL COMBINE TO PRODUCE A HIGH IMPACT WINTER STORM FOR PARTS OF
THE NORTH THROUGH TONIGHT. A STRONG COLD FRONT WILL BRING SNOW
AND STRENGTHENING NORTHWEST WIND TO THE BIG HORN MOUNTAINS AND
NORTHEAST JOHNSON COUNTY THROUGH TONIGHT.

WYZ023-024-082330-
/O.CAN.KRIW.WS.W.0010.000000T0000Z-121209T0000Z/
STAR VALLEY-SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
323 PM MST SAT DEC 8 2012

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
STORM WARNING. 

SNOWFALL OVER THE WEST HAS DECREASED.

$$

WYZ027>030-082330-
/O.CAN.KRIW.WW.Y.0034.000000T0000Z-121209T0000Z/
SOUTH LINCOLN COUNTY-ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE...ROCK SPRINGS...
GREEN RIVER...WAMSUTTER
323 PM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

SNOWFALL OVER THE WEST HAS DECREASED.

$$

WYZ008-009-091000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
323 PM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH 
  THROUGH THE AREA. MODERATE TO LOCALLY HEAVY SNOW WILL 
  ACCOMPANY THE FRONT ALONG WITH STRENGTHENING NORTHWEST WIND 
  THROUGH TONIGHT. 

* SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WIND AND VISIBILITY...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 50 
  MPH. THE VISIBILITY WILL BE ZERO AT TIMES IN SNOW AND BLOWING 
  SNOW. WIND CHILL TEMPERATURES OF 25 TO 35 BELOW ZERO. 

* IMPACTS...TRAVEL OVER U.S. 16 OVER POWDER RIVER PASS AND OTHER 
  MOUNTAIN ROADS WILL BECOME INCREASINGLY HAZARDOUS THROUGH THE 
  NIGHT. BITTERLY COLD WIND CHILL TEMPERATURES WILL RESULT IN 
  FROSTBITE IN 10 TO 20 MINUTES ON EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ010-091000-
/O.CON.KRIW.WW.Y.0034.000000T0000Z-121209T1200Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF...BUFFALO
323 PM MST SAT DEC 8 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY. 

* SUMMARY AND TIMING...A VERY STRONG COLD FRONT WILL BLAST SOUTH 
  THE AREA. LIGHT TO MODERATE SNOW WILL ACCOMPANY THE FRONT 
  ALONG WITH STRENGTHENING NORTHWEST WIND THROUGH THE NIGHT. 

* SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WIND AND VISIBILITY...NORTHWEST WIND INCREASING TO 25 TO 35 
  MPH WITH GUSTS NEAR 50 MPH. THE VISIBILITY WILL BE ZERO AT 
  TIMES IN SNOW AND BLOWING SNOW. WIND CHILL TEMPERATURES OF 10 
  TO 20 BELOW ZERO TONIGHT. 

* IMPACTS...TRAVEL ALONG INTERSTATES 25 AND 90 AND OTHER STATE 
  ROUTES WILL BECOME SLICK AND ICY. THE SLICK ROADS AND SHARPLY 
  REDUCED VISIBILITY AT TIMES IN SNOW AND BLOWING SNOW WILL 
  DEFINITELY MAKE FOR TREACHEROUS TRAVEL ALONG INTERSTATES 25 
  AND 90 TONIGHT. BITTERLY COLD WIND CHILL TEMPERATURES WILL 
  RESULT IN FROSTBITE WITHIN 30 MINUTES ON EXPOSED SKIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Riverton, WY wrote its last area forecast discussion before this winter storm warning went out at Dec 6, 11:43 PM MST, 2 hours 50 minutes earlier.

Area forecast discussion, Dec 6, 11:43 PM MST, 2 hours 50 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
1143 PM MST THU DEC 6 2012

.SHORT TERM...TONIGHT THROUGH SUNDAY
ACTIVE AND CHALLENGING SHORT TERM WITH TWO WEATHER SYSTEMS MOVING
THROUGH THE AREA. THE SECOND SYSTEM WILL USHER IN SHARPLY COLDER
CONDITIONS AND A GOOD DOSE OF MORE DECEMBER APPROPRIATE
TEMPERATURES. THE FIRST SYSTEM IS SPREADING RAPIDLY SE ACROSS WRN
MONTANA WITH SOME ISENTROPIC UPGLIDE PRECEDING IT ACROSS THE NW
MOUNTAINS WHERE CLOUDS ARE LOWERING AND EVEN SOME LIGHT SNOW
SHOWERS ARE POPPING UP AROUND THE MOUNTAINS. CONDITIONS WILL
CONTINUE TO DETERIORATE THROUGH THE EVENING WITH WIDESPREAD LIGHT
SNOW EXPECTED IN THE NW MOUNTAINS. IT ALSO LOOKS LIKE SNOW WILL
BREAK OUT ACROSS THE FAR NORTH LOWER ELEVATIONS AS THE FRONT
DROPPING SOUTH INTERACTS WITH THE LEFT EXIT REGION OF AN
APPROACHING JET STREAK COMBINED WITH SOME MID LEVEL CONVERGENCE.
WENT WITH 2 TO 3 INCHES IN THE NRN BORDER AREAS WITH 4 TO 6 IN THE
NRN BIGHORNS. STRONG SW WINDS WILL CONTINUE AND INCREASE SOME
ALONG THE I80 CORRIDOR UP THROUGH THE WIND CORRIDOR. SOME
LOCALIZED HIGH WINDS IN THE FAVORED AREAS BUT NOT ENOUGH TO
WARRANT ANY HIGH WIND WARNINGS.

NEXT SYSTEM RAPIDLY APPROACHES LATE FRIDAY FROM THE NW WITH
EVEN STRONGER DYNAMICS AND SHARPLY COLDER AIR. THE COMBINATION OF
JET STREAK DYNAMICS...STRONG PVA...STRONG AND FAVORED WNW-NW FLOW
AND OPTIMAL DENDRITIC GROWTH ZONE TEMPERATURES TO BEGIN THE EVENT
(AND CONTINUE QUITE A BIT FURTHER SOUTH) WARRANTS A WINTER STORM
WATCH FOR THE TETONS...SALT AND WYOMING RANGES AND THE STAR
VALLEY. THE SALT AND WYOMING RANGES LOOK THE BEST FOR 12 INCH PLUS
AMOUNTS AND THE STAR VALLEY LOOKS GOOD FOR 6 INCHES OR MORE. THE
TETON AMOUNTS LOOK A LITTLE LESS BUT STILL PROBABLY AROUND A FOOT
UP HIGH WITH VERY STRONG WINDS OF 35 TO 45 MPH WITH GUSTS AT LEAST
50 TO 60 MPH CAUSING CONSIDERABLE BLOWING SNOW. NO WORRIES ABOUT
RAIN IN THE VALLEYS WITH THIS SYSTEM. THE JACKSON VALLEY LOOKS
LIKE AN ADVISORY TYPE STORM RIGHT NOW FOR AMOUNTS...3 TO 6 OR 4 TO
8 BUT WITH SW WINDS OF 25 TO 40 MPH. QUITE A BIT OF WIND AHEAD OF
THIS SYSTEM AND WITH FROPA JUST ABOUT EVERYWHERE.

EAST OF THE DIVIDE...THIS SYSTEM WILL USHER IN SHARPLY COLDER
TEMPERATURES AND SOME LIGHT SNOW AND POTENTIAL FOR BLOWING SNOW...
ESPECIALLY IN THE SOUTH BUT ALL AREAS IN THE EAST WILL HAVE SOME
POTENTIAL. THE INITIAL STORM DYNAMICS WILL GET THE SNOW GOING WITH
THE INITIAL FRONT BUT A SECONDARY...COLDER AND MORE NLY UPSLOPE
WIND WILL DEVELOP LATER SATURDAY INTO SATURDAY NIGHT KEEPING THE
CHANCE OF LIGHT SNOW GOING IN THE FAVORED SOUTH AND UPSLOPE AREAS.
PROBABLY NOT A LOT BY SATURDAY NIGHT BUT VERY COLD WITH AT LEAST
SOME LIGHT SNOW OR FLURRIES.

VERY COLD ALL AREAS SUNDAY WITH -18 TO -20C H7 AIR AND -38C H5 COLD
AIR. LOWERED THE LOWS SUNDAY MORNING MANY AREAS AND ONLY SOME
LINGERING CLOUD COVER (AND A LITTLE WIND SOUTH) COULD SAVE US FROM
EVEN COLDER READINGS. HIGHS ON SUNDAY MAINLY TEENS TO NEAR 20
LOWER ELEVATIONS AND SINGLE DIGITS IN THE MOUNTAINS.

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY

12Z GFS AND 00Z ECMWF ARE IN AMAZINGLY GOOD AGREEMENT THROUGH THE
EXTENDED PERIOD THIS AFTERNOON. ONLY APPARENT DIFFERENCES ARE THE
INTENSITIES OF PRECIPITATION DURING DIFFERENT PERIODS. OVERALL
PATTERN THOUGH GOES FROM COLD NORTHWEST FLOW BACK TO WESTERLY FLOW
TUESDAY NIGHT. COLDEST SURFACE TEMPERATURES AT THIS TIME APPEAR TO
BE SUNDAY NIGHT BEFORE MIDNIGHT AS CLEAR SKIES MOVE OVER THE STATE
BETWEEN THE SYSTEMS. AS CLOUDS MOVE IN AFTER MIDNIGHT SUNDAY INTO
MONDAY...TEMPS WILL WARM AND PRECIPITATION STARTS AGAIN IN THE
HIGHER TERRAIN OF NORTHWEST WY. A QUICK SHORTWAVE MOVES OVER THE
STATE ON MONDAY WITH WEAK RIDGING BEHIND INTO TUESDAY. MOIST FLOW
OVER THE RIDGE KEEPS A SLIGHT CHANCE IN THE NORTHWEST MOUNTAINS. A
STRONGER TROUGH MOVES INTO THE PACIFIC NORTHWEST
WEDNESDAY...TURNING THE FLOW OVER TO MORE WEST TO SOUTHWEST. THE
RESULT IS A RETREAT OF THE MID LEVEL COLD AIR AND WARMING FROM
SOUTHERN WY NORTHWARD. THE TROUGH LOOKS TO BRINGS MOIST PACIFIC
AIR INTO WESTERN WYOMING FOR ABOUT 12 HOURS FOR SOME GOOD
SNOWFALL. AN ENERGY SPLIT KEEPS ACTIVITY AROUND WYOMING STRETCHED
OUT TO THE DESERT SOUTHWEST. THE LATEST 12Z ECMWF EMPHASIZES THE
SOUTHERN COMPONENT THOUGH. KEPT MORE OF A MENTION OF PRECIPITATION
FROM WEDNESDAY INTO THURSDAY IN THE FORECAST WITH THE UNCERTAINTY.

&&

.AVIATION.../00Z ISSUANCE/

A WEAK COLD FRONT WILL SLOWLY PUSH SOUTH TO VCNTY KRIW-KCPR LINE BY
12Z.  AREAS OF IFR/MVFR -SN...VCNTY AND NORTH OF A KCOD-KGEY-KBYG
LINE...WILL GRADUALLY IMPROVE FROM THE WEST THOUGH 12Z...HOWEVER
AREAS OF MVFR/LOCAL IFR CIGS WILL FILL IN BEHIND THE FRONT...AND
THEN LIFT AND DISSIPATE 14Z-17Z.  THE NEXT STRONGER STORM SYSTEM
WILL BRING INCREASING WINDS ALOFT WITH AREAS OF LLWS DEVELOPING
00Z-06Z SAT ALONG THE LEE SLOPES OF THE DIVIDE...VCNTY
KCOD-KLND...AND IN THE VCNTY OF THE BIGHORN MTNS.  MTS WILL BECOME
INCREASINGLY OBSCURED OVERNIGHT FRIDAY WITH AREAS OF MVFR/IFR -SN
DEVELOPING VCNTY AND NORTH OF A KCOD-KBYG LINE BY 12Z SAT.

WEST OF THE CONTINENTAL DIVIDE...A BRIEF PERIOD OF IMPROVEMENT WILL
OCCUR THROUGH 18Z FRIDAY WITH MOST HIGHER MTNS REMAINING OBSCURED IN
-SN.  THE NEXT MORE POWERFUL PACIFIC STORM SYSTEM WILL SPREAD
RAPIDLY DETERIORATING CONDITIONS IN SN/BLSN INTO NW WYOMING THIS
AFTERNOON TO VCNTY KJAC BY 21Z.  WIDESPREAD IFR/LIFR CONDITIONS IN
SN/BLSN ARE EXPECTED WEST OF THE DIVIDE FRIDAY NIGHT WITH MTN TOP
WINDS INCREASING TO NEAR 50KTS ALONG WITH AREAS OF LLWS.

&&

.FIRE WEATHER...
IT WILL BE WINDY ACROSS THE SOUTH TONIGHT WITH SNOW MOVING INTO
THE NORTH AND WEST. GUSTY NORTH WINDS WILL PUSH SOUTH ACROSS THE
NORTHERN ZONES. STRONG AND GUSTY SOUTHWEST WINDS WILL DEVELOP IN
MOST AREAS FRIDAY NIGHT IN ADVANCE OF A NEW STORM SYSTEM THAT WILL
USHER IN SHARPLY COLDER CONDITIONS WITH SNOW OUT WEST AND SOME
AREAS OF LIGHT SNOW EAST OF THE DIVIDE LATER FRIDAY NIGHT THROUGH
SATURDAY NIGHT.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY
MORNING WYZ012.

WINTER STORM WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON WYZ023-024.

&&

SHORT TERM...SKRBAC
LONG TERM...MCDONALD
AVIATION...AEM
FIRE WEATHER...SKRBAC
Hazardous weather outlook, Dec 6, 2:04 PM MST, 12 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
204 PM MST THU DEC 6 2012

WYZ001>020-022>030-071200-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
204 PM MST THU DEC 6 2012

...WINTER STORM WATCH FOR THE TETONS FROM 2 PM FRIDAY TO 11 AM
SATURDAY...
...WINTER STORM WATCH FOR THE SALT AND WYOMING RANGES AND NEARBY
STAR VALLEY FROM 5 PM FRIDAY TO 5 PM SATURDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

TONIGHT...LIGHT TO MODERATE AMOUNTS OF SNOWFALL ACROSS THE NORTHWEST
AND NORTHERN MOUNTAINS...AND POSSIBLY ACROSS THE NORTHERN BIG HORN
BASIN...AND NORTHERN JOHNSON COUNTY...CREATING SLICK DRIVING
CONDITIONS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

FRIDAY AFTERNOON THROUGH SATURDAY...SIGNIFICANT SNOWFALL AND WIND
POSSIBLE...ACROSS THE WEST.

SUNDAY...COLD WITH HIGHS 10 TO 20 DEGREES BELOW AVERAGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

TEAM RIVERTON

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 7, 2:33 AM MSTWinter Weather AdvisoryRIWBig Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 5 more47 hr
Dec 7, 2:56 PM MSTHigh Wind WatchRIWFremont6 hr
Dec 7, 2:56 PM MSTHigh Wind WatchRIWJohnson6 hr
Dec 7, 2:56 PM MSTHigh Wind WarningRIWFremont, Natrona, Sweetwater23 hr

Nearby

Winter Storm Warnings in Wyoming, 2012Every winter storm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.