Alert archive / Wyoming / Winter Storm Warnings in 2012

Winter Storm Warning 9, NWS Riverton, WY

December 4, 20125 counties in Wyoming

NWS Riverton, WY issued this winter storm warning at Dec 4, 2012, 10:38 AM MST for 5 counties in Wyoming. It took effect at Dec 4, 2012, 12:00 PM MST. It was in force for 36 hr. 55 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 4, 2012, 10:38 AM MST (17:38 UTC)
In effect from
Dec 4, 2012, 12:00 PM MST
Expired
Dec 6, 2012, 12:00 AM MST
In force
36 hr
Issued by
NWS Riverton, WY

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

The radar

The Riverton/Lander radar (KRIW), 116 km from the middle of the area, began a volume at 17:41 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 4, 5:22 PM MSTSNOW 3Alpine, WY
Dec 5, 3:31 AM MSTSNOW 314 E Bondurant, WYLOOMIS PARK SNOTEL
Dec 5, 3:31 AM MSTSNOW 410 N Bondurant, WYGRANITE CREEK SNOTEL
Dec 5, 3:32 AM MSTSNOW 222 N Cora, WYKENDALL RANGER STATION SNOTEL
Dec 5, 3:34 AM MSTSNOW 212 Ese Bondurant, WYEAST RIM DIVIDE SNOTEL
Dec 5, 6:03 AM MSTSNOW 21 S Jackson, WYSNOW KING SKI AREA
Dec 5, 6:03 AM MSTSNOW 223 Nw Dubois, WYBROOKS LAKE LODGE
Dec 5, 6:05 AM MSTSNOW 214.3 E Thayne, WYBOX Y RANCH
Dec 5, 6:08 AM MSTSNOW 0.814 Nw Pinedale, WY
Dec 5, 4:10 PM MSTSNOW 517.2 E Thayne, WYBLIND BULL SUMMIT
Dec 5, 4:11 PM MSTHEAVY SNOW 65 Ne Alta, WYGRAND TARGHEE-CHIEF JOSEPH
Dec 5, 4:11 PM MSTHEAVY SNOW 109.9 Nnw Jackson, WYJACKSON HOLE-RAYMER
Dec 5, 4:12 PM MSTSNOW 4Togwotee Mountain Lodge, WY
Dec 5, 4:12 PM MSTHEAVY SNOW 79.3 Nnw Jackson, WYJACKSON HOLE-MID
Dec 5, 4:12 PM MSTHEAVY SNOW 99.4 Nnw Jackson, WYJACKSON HOLE-RENDEZVOUS BOWL
Dec 5, 4:21 PM MSTHEAVY SNOW 621 W Clark, WYBEARTOOTH LAKE SNOTEL
Dec 5, 4:22 PM MSTSNOW 211 N Dubois, WYBURROUGHS CREEK SNOTEL
Dec 5, 4:22 PM MSTSNOW 218 Sw Cody, WYMARQUETTE SNOTEL
Dec 5, 4:22 PM MSTSNOW 226 Wsw Clark, WYWOLVERINE SNOTEL
Dec 5, 4:22 PM MSTSNOW 230 Sw Meeteetse, WYKIRWIN SNOTEL
Dec 5, 4:22 PM MSTSNOW 356 Sw Cody, WYYOUNTS PEAK SNOTEL
Dec 5, 4:22 PM MSTSNOW 519 Wsw Wapiti, WYBLACKWATER SNOTEL
Dec 5, 4:22 PM MSTHEAVY SNOW 714 Ne Pahaska, WYEVENING STAR SNOTEL
Dec 5, 4:23 PM MSTSNOW 320 Ne Bondurant, WYGROS VENTRE SUMMIT SNOTEL
Dec 5, 4:23 PM MSTHEAVY SNOW 88 Wnw Jackson, WYPHILLIPS BENCH SNOTEL
Dec 5, 4:23 PM MSTHEAVY SNOW 88 W South Entrance, WYGRASSY LAKE SNOTEL
Dec 5, 4:23 PM MSTHEAVY SNOW 118 Nne Moran Junction, WYBASE CAMP SNOTEL
Dec 5, 4:23 PM MSTHEAVY SNOW 136 Ene Alta, WYGRAND TARGHEE SNOTEL
Dec 5, 4:24 PM MSTSNOW 212 N Cora, WYNEW FORK LAKE SNOTEL
Dec 5, 4:24 PM MSTSNOW 216 Sw Dubois, WYGUNSITE PASS SNOTEL
Dec 5, 4:24 PM MSTSNOW 225 Sw Lander, WYLARSEN CREEK SNOTEL
Dec 5, 4:24 PM MSTSNOW 412 Nne Pinedale, WYELKHART PARK G.S. SNOTEL
Dec 5, 4:24 PM MSTSNOW 524 Ese Boulder, WYBIG SANDY OPENING SNOTEL
Dec 5, 4:24 PM MSTHEAVY SNOW 725 Nw Dubois, WYTOGWOTEE PASS SNOTEL
Dec 5, 4:24 PM MSTHEAVY SNOW 9South Entrance, WYSNAKE RIVER STN SNOTEL
Dec 5, 4:25 PM MSTSNOW 114 W Crowheart, WYCOLD SPRINGS SNOTEL
Dec 5, 4:25 PM MSTSNOW 119 Ssw Lander, WYDEER PARK SNOTEL
Dec 5, 4:25 PM MSTSNOW 16 Wsw Dubois, WYLITTLE WARM SNOTEL
Dec 5, 4:25 PM MSTSNOW 216 E Boulder, WYPOCKET CREEK SNOTEL
Dec 5, 4:25 PM MSTSNOW 226 Nw Lander, WYST. LAWRENCE ALT SNOTEL
Dec 5, 4:25 PM MSTHEAVY SNOW 719 Sw Bondurant, WYBLIND BULL SUMMIT SNOTEL
Dec 5, 4:26 PM MSTSNOW 28 Se Afton, WYCOTTONWOOD CREEK SNOTEL
Dec 5, 4:26 PM MSTSNOW 415 Nne Cokeville, WYKELLEY RANGER STATION SNOTEL
Dec 5, 4:26 PM MSTSNOW 426 N Kemmerer, WYHAMS FORK SNOTEL
Dec 5, 4:26 PM MSTHEAVY SNOW 736 N Kemmerer, WYINDIAN CREEK SNOTEL
Dec 5, 4:27 PM MSTSNOW 121 W Big Piney, WYSNIDER BASIN SNOTEL
Dec 5, 4:27 PM MSTSNOW 415 S Afton, WYSALT RIVER SUMMIT SNOTEL
Dec 5, 4:27 PM MSTSNOW 517 E Afton, WYTRIPLE PEAK SNOTEL
Dec 5, 4:27 PM MSTHEAVY SNOW 719 Se Afton, WYSPRING CREEK DIVIDE SNOTEL
Dec 5, 4:27 PM MSTHEAVY SNOW 78 Ne Afton, WYWILLOW CREEK SNOTEL
Dec 5, 4:33 PM MSTSNOW 1.55 Nne Thayne, WY
Dec 5, 4:34 PM MSTSNOW 0.52 Se Thayne, WY
Dec 5, 4:34 PM MSTSNOW 0.53 Ssw Wilson, WY
Dec 5, 4:36 PM MSTSNOW 0.2Afton, WY
Dec 5, 4:37 PM MSTSNOW 1Daniel Fish Hatchery, WY

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 12:00Z, 5.6 hours before the alert went out and 122 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 12:00Z on 2012-12-04Temperature 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 12:00Z on 2012-12-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939587897Sfc1 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
2058 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
126 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.

896 
WWUS45 KRIW 041738
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1038 AM MST TUE DEC 4 2012

...HEAVY SNOW AND STRONG WINDS FOR THE WESTERN MOUNTAINS AND
VALLEYS THIS AFTERNOON THROUGH WEDNESDAY EVENING...

.STRONG WEST FLOW WILL BRING ANOTHER PACIFIC STORM SYSTEM WITH
HEAVY SNOW AND STRONG WINDS IN THE WESTERN MOUNTAINS AND VALLEYS
OF WYOMING STARTING THIS AFTERNOON. THE SNOW AND WIND WILL
INTENSIFY TONIGHT AND WEDNESDAY AND THEN TAPER OFF WEDNESDAY
EVENING. SNOWFALL OF 10 TO 25 INCHES MAY FALL OVER THE WESTERN
MOUNTAINS. TEMPERATURES ARE EXPECTED TO BE WARM ENOUGH FOR RAIN AT
TIMES IN THE WESTERN VALLEYS THIS AFTERNOON AND AGAIN WEDNESDAY
DURING THE STORM WHICH WILL LIMIT SNOWFALL ACCUMULATIONS IN THE 
VALLEYS.

WYZ001-051000-
/O.UPG.KRIW.WS.A.0007.121205T0100Z-121206T0700Z/
/O.NEW.KRIW.WS.W.0009.121204T1900Z-121206T0700Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
1038 AM MST TUE DEC 4 2012

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN EFFECT
UNTIL MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

* SUMMARY AND TIMING...SNOW WILL INTENSIFY ACROSS YELLOWSTONE NATIONAL
  PARK DURING THE AFTERNOON. SNOWFALL AND WIND IS EXPECTED TO PICK
  UP AND SPREAD NORTHEAST INTO THE REST OF OF THE PARK THROUGH
  TONIGHT...AND CONTINUE THROUGH WEDNESDAY BEFORE TAPERING OFF
  WEDNESDAY EVENING. SNOWFALL IN THE NORTHERN HALF OF THE PARK IS
  EXPECTED TO BE LIGHTER THAN IN THE SOUTH.

* SNOW ACCUMULATIONS...SNOWFALL OF 15 TO 25 INCHES MAY FALL IN THE
  SOUTHERN MOUNTAINS OF THE PARK WITH 6 TO 12 INCHES IN THE NORTH.
  BELOW 7500 FEET...A MIXTURE OF RAIN AND SNOW WILL OCCUR THIS
  AFTERNOON AND AGAIN AT TIMES DURING THE DAY WEDNESDAY DURING THE
  EVENT...WITH ACCUMULATIONS OF 2 TO 4 INCHES EXPECTED.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL AND OTHER OUTDOOR ACTIVITIES MAY BECOME
  DIFFICULT ACROSS THE HIGHER ELEVATIONS.

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.

&&

$$

WYZ012-051000-
/O.UPG.KRIW.WS.A.0007.121205T0100Z-121206T0700Z/
/O.NEW.KRIW.WS.W.0009.121204T1900Z-121206T0700Z/
TETON AND GROS VENTRE MOUNTAINS-
1038 AM MST TUE DEC 4 2012

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN
EFFECT UNTIL MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.

* SUMMARY AND TIMING...SNOW WILL INTENSIFY OVER THE TETONS DURING
  THE AFTERNOON. SNOWFALL AND WIND IS EXPECTED TO CONTINUE THROUGH
  TONIGHT AND WEDNESDAY BEFORE TAPERING OFF WEDNESDAY EVENING.

* SNOW ACCUMULATIONS...SNOWFALL OF 15 TO 25 INCHES MAY FALL IN THE
  TETON MOUNTAINS WITH 12 TO 18 INCHES IN THE GROS VENTRE
  MOUNTAINS.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES AND OTHER
  OUTDOOR ACTIVITIES MAY BECOME DIFFICULT.  EXPECT TRAVEL DELAYS.

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.

&&

$$

WYZ014-051000-
/O.UPG.KRIW.WS.A.0007.121205T0100Z-121206T0700Z/
/O.NEW.KRIW.WS.W.0009.121204T1900Z-121206T0700Z/
WIND RIVER MOUNTAINS WEST-
1038 AM MST TUE DEC 4 2012

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN
EFFECT UNTIL MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.

* SUMMARY AND TIMING...LIGHT SNOW WILL MOVE INTO THE WEST SLOPES
  OF THE WIND RIVER MOUNTAINS DURING THE AFTERNOON. SNOWFALL AND
  WIND IS EXPECTED TO PICK UP THROUGH TONIGHT AND WEDNESDAY BEFORE
  TAPERING OFF WEDNESDAY EVENING.

* SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 20 INCHES MAY FALL.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER SOUTH PASS AND OTHER OUTDOOR ACTIVITIES
  MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS.

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.

&&

$$

WYZ024-051000-
/O.UPG.KRIW.WS.A.0007.121205T0100Z-121206T0700Z/
/O.NEW.KRIW.WS.W.0009.121204T1900Z-121206T0700Z/
SALT RIVER AND WYOMING RANGES-
1038 AM MST TUE DEC 4 2012

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN EFFECT
UNTIL MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

* SUMMARY AND TIMING...SNOW WILL INCREASE IN THE SALT RIVER AND
  WYOMING RANGES DURING THE AFTERNOON. SNOWFALL AND WIND IS
  EXPECTED TO PICK UP THROUGH TONIGHT AND WEDNESDAY BEFORE
  TAPERING OFF WEDNESDAY EVENING.

* SNOW ACCUMULATIONS...SNOWFALL OF 15 TO 20 INCHES MAY FALL IN THE
  NORTH WITH 8 TO 15 INCHES IN THE SOUTH.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. 

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.

&&

$$

WYZ013-051000-
/O.NEW.KRIW.WS.W.0009.121204T1900Z-121206T0700Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
1038 AM MST TUE DEC 4 2012

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN
EFFECT UNTIL MIDNIGHT MST WEDNESDAY NIGHT.

* SUMMARY AND TIMING...SNOW WILL INCREASE IN JACKSON HOLE DURING
  THE AFTERNOON...BUT MAY MIX WITH RAIN AT TIMES UNTIL EARLY
  EVENING. SNOWFALL AND WIND IS EXPECTED TO PICK UP THROUGH
  TONIGHT AND WEDNESDAY BEFORE TAPERING OFF WEDNESDAY EVENING. THE
  SNOW MAY MIX WITH RAIN AT TIMES DURING THE DAY WEDNESDAY.

* SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES MAY FALL IN THE
  NORTH WITH 3 TO 6 INCHES IN THE SOUTH.

* WIND AND VISIBILITY...SOUTHWEST WINDS OF 20 TO 25 MPH WITH
  HIGHER GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW
  WITH VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL AND OTHER OUTDOOR ACTIVITIES MAY BECOME
  DIFFICULT. EXPECT ICY AND SNOWPACKED ROADS WITH POOR VISIBILITY.

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.

&&

$$

WYZ025-051000-
/O.NEW.KRIW.WS.W.0009.121204T1900Z-121206T0700Z/
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
1038 AM MST TUE DEC 4 2012

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN EFFECT
UNTIL MIDNIGHT MST WEDNESDAY NIGHT.

* SUMMARY AND TIMING...SNOW WILL INCREASE FROM PINEDALE TO
  BONDURANT  DURING THE AFTERNOON...BUT MAY MIX WITH RAIN AT
  TIMES UNTIL EARLY EVENING. SNOWFALL AND WIND IS EXPECTED TO PICK
  UP THROUGH TONIGHT AND WEDNESDAY BEFORE TAPERING OFF WEDNESDAY
  EVENING. THE SNOW MAY MIX WITH RAIN AT TIMES DURING THE DAY
  WEDNESDAY.

* SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES MAY FALL IN THE
  NORTH WITH 3 TO 6 INCHES IN THE SOUTH.

* WIND AND VISIBILITY...WEST WINDS OF 20 TO 25 MPH WITH HIGHER
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH
  VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL AND OTHER OUTDOOR ACTIVITIES MAY BECOME
  DIFFICULT. EXPECT ICY AND SNOWPACKED ROADS WITH POOR VISIBILITY.

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.

&&

$$

WYZ023-051000-
/O.NEW.KRIW.WS.W.0009.121204T1900Z-121206T0700Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
1038 AM MST TUE DEC 4 2012

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN
EFFECT UNTIL MIDNIGHT MST WEDNESDAY NIGHT.

* SUMMARY AND TIMING...SNOW WILL INCREASE IN THE STAR VALLEY DURING
  THE AFTERNOON...BUT MAY MIX WITH RAIN AT TIMES UNTIL EARLY
  EVENING. SNOWFALL AND WIND IS EXPECTED TO PICK UP THROUGH
  TONIGHT AND WEDNESDAY BEFORE TAPERING OFF WEDNESDAY EVENING. THE
  SNOW MAY MIX WITH RAIN AT TIMES DURING THE DAY WEDNESDAY.

* SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES MAY FALL IN THE
  NORTH WITH 3 TO 6 INCHES IN THE SOUTH.

* WIND AND VISIBILITY...SOUTHWEST WINDS OF 20 TO 25 MPH WITH
  HIGHER GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW
  WITH VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL AND OTHER OUTDOOR ACTIVITIES MAY BECOME
  DIFFICULT. EXPECT ICY AND SNOWPACKED ROADS WITH POOR VISIBILITY.

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.

&&

$$

WYZ002-051000-
/O.NEW.KRIW.WW.Y.0033.121204T1900Z-121206T0700Z/
ABSAROKA MOUNTAINS-
1038 AM MST TUE DEC 4 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND STRONG WINDS...WHICH IS IN EFFECT
UNTIL MIDNIGHT MST WEDNESDAY NIGHT.

* SUMMARY AND TIMING...SNOW WILL INCREASE IN THE ABSAROKA
  MOUNTAINS DURING THE AFTERNOON. SNOWFALL AND WIND IS EXPECTED
  TO PICK UP THROUGH TONIGHT AND WEDNESDAY BEFORE TAPERING OFF
  WEDNESDAY EVENING.

* SNOW ACCUMULATIONS...SNOWFALL OF 8 TO 12 INCHES MAY FALL IN THE
  WEST WITH 5 TO 8 INCHES IN THE EAST.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH
  VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. 

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.

&&

$$

WYZ015-051000-
/O.NEW.KRIW.WW.Y.0033.121204T1900Z-121206T0700Z/
WIND RIVER MOUNTAINS EAST-
1038 AM MST TUE DEC 4 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MST WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND STRONG WINDS...WHICH IS IN EFFECT
UNTIL MIDNIGHT MST WEDNESDAY NIGHT.

* SUMMARY AND TIMING...LIGHT SNOW WILL MOVE INTO THE EAST SLOPES
  OF THE WIND RIVER MOUNTAINS DURING THE AFTERNOON. SNOWFALL AND
  WIND IS EXPECTED TO PICK UP THROUGH TONIGHT AND WEDNESDAY BEFORE
  TAPERING OFF WEDNESDAY EVENING.

* SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 12 INCHES MAY FALL.

* WIND AND VISIBILITY...WEST WINDS OF 30 TO 40 MPH WITH HIGHER
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH
  VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL OVER SOUTH PASS AND OTHER OUTDOOR ACTIVITIES
  MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS.

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.

&&

$$
6 follow-up statements
204 
WWUS45 KRIW 050335
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
835 PM MST TUE DEC 4 2012

...HEAVY SNOW AND STRONG WINDS FOR THE WESTERN MOUNTAINS AND SOME 
VALLEYS OVERNIGHT THROUGH WEDNESDAY EVENING...

.STRONG WEST FLOW WILL BRING ANOTHER PACIFIC STORM SYSTEM WITH
HEAVY SNOW AND STRONG WINDS IN THE WESTERN MOUNTAINS AND SOME OF
THE VALLEYS OF WESTERN WYOMING. 

WYZ023-050445-
/O.CAN.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE
835 PM MST TUE DEC 4 2012

...WINTER STORM WARNING IS CANCELLED...

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

THE PRECIPITATION WILL BE IN THE FORM OF RAIN OR MIXED RAIN SNOW
TONIGHT. EXPECT PERIODS OF RAIN ON WEDNESDAY WITH SNOW IN THE
SURROUNDING MOUNTAINS. 

$$

WYZ001-051300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
835 PM MST TUE DEC 4 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT. 

* SUMMARY AND TIMING...SNOW WILL BE INCREASING IN INTENSITY
  OVERNIGHT WITH PERIODS OF MODERATE TO HEAVY SNOW ON WEDNESDAY.
  THE HIGHER ELEVATIONS OF YELLOWSTONE NATIONAL PARK WILL SEE THE
  MOST SNOWFALL...ESPECIALLY IN THE SOUTHWEST PART OF THE PARK.
  SNOWFALL IN THE NORTHERN HALF OF THE PARK IS EXPECTED TO BE MUCH
  LIGHTER THAN IN THE SOUTH. RAIN MAY MIX TO SNOW AT TIMES IN THE
  LOWER ELEVATIONS OF THE PARK BELOW 7500 FEET.

* SNOW ACCUMULATIONS...SNOWFALL OF 15 TO 25 INCHES MAY FALL IN THE
  SOUTHERN MOUNTAINS OF THE PARK WITH 6 TO 10 INCHES IN THE NORTH.
  BELOW 7500 FEET...SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE FORECAST.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES IN THE HIGHER ELEVATIONS. 

* IMPACTS...OUTDOOR ACTIVITIES MAY BECOME DIFFICULT ACROSS THE
  HIGHER ELEVATIONS AND TRAVEL ON SOME ROADS WILL BE HAZARDOUS.

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.

&&

$$

WYZ013-051300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
835 PM MST TUE DEC 4 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT. 

* SUMMARY AND TIMING...SNOW WILL INCREASE IN THE JACKSON VALLEY
  OVERNIGHT AND CONTINUE INTO WEDNESDAY. RAIN WILL MIX WITH THE
  SNOW IN THE TOWN OF JACKSON WEDNESDAY WHILE MOSTLY SNOW WILL
  OCCUR FROM MOOSE TO MORAN JUNCTION.

* SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES IS FORECAST IN
  THE NORTH HALF OF THE VALLEY WITH 2 TO 6 INCHES IN THE SOUTH HALF.

* WIND AND VISIBILITY...AREAS OF SOUTH TO SOUTHWEST WIND OF 10 TO
  20 MPH. VISIBILITY WILL DROP TO BELOW ONE HALF MILE AT TIMES.

* IMPACTS...TRAVEL AND OTHER OUTDOOR ACTIVITIES MAY BECOME
  DIFFICULT. EXPECT ICY AND SNOWPACKED ROADS WITH POOR VISIBILITY.

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.

&&

$$

WYZ012-051300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
TETON AND GROS VENTRE MOUNTAINS-
835 PM MST TUE DEC 4 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL
  OCCUR OVERNIGHT AND WEDNESDAY. EXPECT GUSTY WIND IN THE EXPOSED
  AREAS AND ON THE PEAKS. SNOW WILL TAPER OFF WEDNESDAY EVENING.

* SNOW ACCUMULATIONS...SNOWFALL OF 15 TO 25 INCHES IN THE TETON
  MOUNTAINS WITH 12 TO 18 INCHES IN THE GROS VENTRE MOUNTAINS.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER
  GUSTS...BLOWING AND AND DRIFTING SNOW IN THE OPEN AREAS.
  VISIBILITY BELOW ONE HALF MILE AT TIMES.

* IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES AND OTHER 
  OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS. 

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.

&&

$$

WYZ014-025-051300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
835 PM MST TUE DEC 4 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL
  OCCUR IN THE WEST SLOPES OF THE WIND RIVER MOUNTAINS OVERNIGHT
  AND WEDNESDAY. SNOW WILL INCREASE FROM PINEDALE TO BONDURANT
  LATE TONIGHT AND CONTINUE THROUGH WEDNESDAY AFTERNOON. A MIX OF
  SNOW...FREEZING RAIN OR PLAIN RAIN MAY OCCUR WEDNESDAY AROUND
  PINEDALE AND AREAS SOUTH.

* SNOW ACCUMULATIONS...SNOWFALL OF 12 TO 18 INCHES FOR THE WEST
  SLOPES OF THE WIND RIVER MOUNTAINS. SNOWFALL OF 5 TO 10 INCHES
  IS FORECAST NORTHWEST OF PINEDALE TO BONDURANT. SNOWFALL OF 2 TO
  5 INCHES IS EXPECTED ELSEWHERE ALONG WITH SOME FREEZING RAIN OR SLEET.

* MOUNTAIN WIND AND VISIBILITY...WEST WINDS OF 20 TO 35 MPH WITH
  HIGHER GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW
  IN THE MOUNTAINS WITH VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL AND OTHER OUTDOOR ACTIVITIES MAY BECOME
  DIFFICULT. EXPECT ICY AND SNOWPACKED ROADS WITH POOR VISIBILITY.

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.

&&

$$

WYZ024-051300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
SALT RIVER AND WYOMING RANGES-
835 PM MST TUE DEC 4 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT. 

* SUMMARY AND TIMING...SNOWFALL INTENSITY WILL INCREASE OVERNIGHT
  AND CONTINUE ON WEDNESDAY. PERIODS OF MODERATE TO HEAVY SNOW ARE 
  EXPECTED.

* SNOW ACCUMULATIONS...SNOWFALL OF 12 TO 20 INCHES IN THE NORTH
  HALF OF THE RANGE WITH 8 TO 15 INCHES IN THE SOUTH HALF.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. EXPECT SNOW COVERED ROADS.

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.

&&

$$

WYZ002-051300-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0700Z/
ABSAROKA MOUNTAINS-
835 PM MST TUE DEC 4 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT. 

* SUMMARY AND TIMING...SNOW WILL INCREASE LATE TONIGHT WITH
  PERIODS OF SNOW THROUGH WEDNESDAY EVENING. 

* SNOW ACCUMULATIONS...SNOWFALL OF 8 TO 12 INCHES IN THE WEST PART
  OF THE RANGE...WITH 5 TO 8 INCHES IN THE EAST PART OF THE RANGE.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR ACTIVITIES
  MAY BECOME DIFFICULT.

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.

&&

$$

WYZ015-051300-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0700Z/
WIND RIVER MOUNTAINS EAST-
835 PM MST TUE DEC 4 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
WEDNESDAY NIGHT. 

* SUMMARY AND TIMING...SNOW WILL INCREASE LATE TONIGHT WITH
  PERIODS OF SNOW ON WEDNESDAY INTO WEDNESDAY EVENING. 

* SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 12 INCHES.

* WIND AND VISIBILITY...WEST WINDS OF 30 TO 40 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER SOUTH PASS AND OTHER OUTDOOR ACTIVITIES 
  MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS. 

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.

&&

$$
771 
WWUS45 KRIW 050921
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
221 AM MST WED DEC 5 2012

...HEAVY SNOW AND STRONG WINDS FOR THE WESTERN MOUNTAINS AND SOME
VALLEYS OVERNIGHT THROUGH WEDNESDAY EVENING...

.STRONG WEST FLOW WILL BRING ANOTHER PACIFIC STORM SYSTEM WITH
HEAVY SNOW AND STRONG WINDS IN THE WESTERN MOUNTAINS AND SOME OF
THE VALLEYS OF WESTERN WYOMING.

WYZ013-025-051030-
/O.CAN.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
JACKSON HOLE-UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITIES OF...JACKSON...PINEDALE
221 AM MST WED DEC 5 2012

...WINTER STORM WARNING IS CANCELLED...

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

WITH TEMPERATURES EXPECTED TO BE ABOVE FREEZING FOR MUCH OF
TODAY...SIGNIFICANT SNOWFALL IS NOT EXPECTED WITH THE SNOW EXPECTED
TO MIX WITH AND CHANGE TO RAIN TODAY. SOME LIGHT SNOW IS EXPECTED
AFTER SUNSET THIS EVENING BUT WILL BE TOO LIGHT TO ACCUMULATE
SIGNIFICANTLY. HOWEVER...THE NORTHERN PORTION OF THE JACKSON
VALLEY AND THE NORTHERN PORTION OF THE UPPER GREEN RIVER
FOOTHILLS...PARTICULARLY AROUND BONDURANT...WILL EXPERIENCE SLICK
AND SNOW COVERED ROADS THROUGH THE MORNING HOURS.

$$

WYZ001-052300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
221 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...THERE WILL WILL BE PERIODS OF MODERATE TO
  HEAVY SNOW TODAY. THE HIGHER ELEVATIONS OF YELLOWSTONE NATIONAL
  PARK WILL SEE THE MOST SNOWFALL...ESPECIALLY IN THE SOUTHWEST
  PART OF THE PARK. SNOWFALL IN THE NORTHERN HALF OF THE PARK IS
  EXPECTED TO BE MUCH LIGHTER THAN IN THE SOUTH. RAIN MAY MIX TO
  SNOW AT TIMES IN THE LOWER ELEVATIONS OF THE PARK BELOW 7500
  FEET. THE SNOWFALL WILL DECREASE SOMEWHAT AFTER 5 PM THIS EVENING.

* SNOW ACCUMULATIONS...AROUND 3 INCHES OF SNOWFALL HAS FALLEN OVER
  PORTIONS OF THE PARK. A TOTAL SNOWFALL OF 10 TO 15 INCHES WILL
  FALL IN THE SOUTHERN MOUNTAINS OF THE PARK WITH 6 TO 10 INCHES
  IN THE NORTH. BELOW 7500 FEET...SNOW ACCUMULATIONS OF 2 TO 4
  INCHES ARE FORECAST.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES IN THE HIGHER 
  ELEVATIONS. 

* IMPACTS...OUTDOOR ACTIVITIES MAY BECOME DIFFICULT ACROSS THE 
  HIGHER ELEVATIONS AND TRAVEL ON SOME ROADS WILL BE HAZARDOUS. 

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.

&&

$$

WYZ012-052300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
TETON AND GROS VENTRE MOUNTAINS-
221 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL
  OCCUR TODAY. SNOWFALL WILL DECREASE SOMEWHAT AFTER 5 PM THIS
  EVENING. EXPECT GUSTY WIND IN THE EXPOSED AREAS AND ON THE
  PEAKS. 

* SNOW ACCUMULATIONS...AROUND 2 INCHES OF SNOW HAS FALLEN
  THROUGHOUT THE AREA SO FAR. A TOTAL SNOWFALL OF 10 TO 20 INCHES
  IN THE TETON MOUNTAINS WITH 12 TO 15 INCHES IN THE GROS VENTRE
  MOUNTAINS IS EXPECTED.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS...BLOWING AND AND DRIFTING SNOW IN THE OPEN AREAS. 
  VISIBILITY BELOW ONE HALF MILE AT TIMES. 

* IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES AND OTHER 
  OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS. 

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.

&&

$$

WYZ014-052300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
WIND RIVER MOUNTAINS WEST-
221 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL
  OCCUR IN THE WEST SLOPES OF THE WIND RIVER MOUNTAINS TODAY. 

* SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 15 INCHES FOR THE WEST
  SLOPES OF THE WIND RIVER MOUNTAINS.

* MOUNTAIN WIND AND VISIBILITY...WEST WINDS OF 20 TO 35 MPH WITH
  HIGHER GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW
  IN THE MOUNTAINS WITH VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL AND OTHER OUTDOOR ACTIVITIES MAY BECOME 
  DIFFICULT. EXPECT ICY AND SNOWPACKED ROADS WITH POOR 
  VISIBILITY. 

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.

&&

$$

WYZ024-052300-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
SALT RIVER AND WYOMING RANGES-
221 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW ARE
  EXPECTED TODAY. THE SNOWFALL WILL DECREASE SOMEWHAT AFTER 5 PM
  THIS EVENING.

* SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOWFALL HAS FALLEN ACROSS
  THE AREA SO FAR. A SNOWFALL TOTAL OF 10 TO 16 INCHES IN THE
  NORTH HALF OF THE RANGE WITH 8 TO 14 INCHES IN THE SOUTH HALF IS EXPECTED.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. EXPECT SNOW COVERED ROADS. 

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.

&&

$$

WYZ002-052300-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0700Z/
ABSAROKA MOUNTAINS-
221 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE
  SNOW DECREASING IN INTENSITY AFTER 5 PM THIS EVENING.

* SNOW ACCUMULATIONS...AROUND 3 INCHES OF SNOWFALL HAS OCCURRED SO
  FAR ACROSS THE NORTHWEST ABSAROKA MOUNTAINS. A TOTAL SNOWFALL OF
  8 TO 12 INCHES IS EXPECTED IN THE WEST PART OF THE RANGE...WITH
  5 TO 8 INCHES IN THE EAST PART OF THE RANGE.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. 

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.

&&

$$

WYZ015-052300-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0700Z/
WIND RIVER MOUNTAINS EAST-
221 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...EXPECT PERIODS OF SNOW TODAY. SNOWFALL WILL
  DECREASE IN INTENSITY AFTER 7 PM THIS EVENING. 

* SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 12 INCHES EXCEPT 3 TO 6
  INCHES ON SOUTH PASS.

* WIND AND VISIBILITY...WEST WINDS OF 30 TO 40 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER SOUTH PASS AND OTHER OUTDOOR ACTIVITIES 
  MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS. 

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.

&&

$$

LIPSON
302 
WWUS45 KRIW 051011 CCA
WSWRIW

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE RIVERTON WY
304 AM MST WED DEC 5 2012

...HEAVY SNOW AND STRONG WINDS FOR THE WESTERN MOUNTAINS THROUGH
THIS EVENING...

.STRONG MOIST WESTERLY FLOW WILL CONTINUE TO RESULT IN PERIODS OF HEAVY
SNOW AND STRONG WINDS IN THE WESTERN MOUNTAINS.

WYZ013-025-051115-
/O.COR.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
JACKSON HOLE-UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITIES OF...JACKSON...PINEDALE
304 AM MST WED DEC 5 2012

...WINTER STORM WARNING IS CANCELLED...

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

WITH TEMPERATURES EXPECTED TO BE ABOVE FREEZING FOR MUCH OF
TODAY...SIGNIFICANT SNOWFALL IS NOT EXPECTED. THE SNOW IS
EXPECTED TO MIX WITH AND CHANGE TO RAIN TODAY. SOME LIGHT SNOW IS
EXPECTED AFTER SUNSET THIS EVENING BUT WILL BE TOO LIGHT TO
ACCUMULATE SIGNIFICANTLY. HOWEVER...THE NORTHERN PORTION OF THE
JACKSON VALLEY AND THE NORTHERN PORTION OF THE UPPER GREEN RIVER
FOOTHILLS...PARTICULARLY AROUND BONDURANT AND MORAN JUNCTION...WILL
EXPERIENCE SLICK AND SNOW COVERED ROADS THROUGH THE MORNING HOURS.

$$

WYZ001-060000-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
304 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...THERE WILL WILL BE PERIODS OF MODERATE TO
  HEAVY SNOW TODAY. THE HIGHER ELEVATIONS OF YELLOWSTONE NATIONAL
  PARK WILL SEE THE MOST SNOWFALL...ESPECIALLY IN THE SOUTHWEST
  PART OF THE PARK. SNOWFALL IN THE NORTHERN HALF OF THE PARK IS
  EXPECTED TO BE MUCH LIGHTER THAN IN THE SOUTH. RAIN MAY MIX TO
  SNOW AT TIMES IN THE LOWER ELEVATIONS OF THE PARK BELOW 7500
  FEET. THE SNOWFALL WILL DECREASE SOMEWHAT AFTER 5 PM THIS EVENING.

* SNOW ACCUMULATIONS...AROUND 3 INCHES OF SNOWFALL HAS FALLEN OVER
  PORTIONS OF THE PARK. A TOTAL SNOWFALL OF 10 TO 15 INCHES WILL
  FALL IN THE SOUTHERN MOUNTAINS OF THE PARK WITH 6 TO 10 INCHES
  IN THE NORTH. BELOW 7500 FEET...SNOW ACCUMULATIONS OF 2 TO 4
  INCHES ARE FORECAST.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES IN THE HIGHER 
  ELEVATIONS. 

* IMPACTS...OUTDOOR ACTIVITIES MAY BECOME DIFFICULT ACROSS THE 
  HIGHER ELEVATIONS AND TRAVEL ON SOME ROADS WILL BE HAZARDOUS. 

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.

&&

$$

WYZ012-060000-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
TETON AND GROS VENTRE MOUNTAINS-
304 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL
  OCCUR TODAY. SNOWFALL WILL DECREASE SOMEWHAT AFTER 5 PM THIS
  EVENING. EXPECT GUSTY WIND IN THE EXPOSED AREAS AND ON THE
  PEAKS. 

* SNOW ACCUMULATIONS...AROUND 2 INCHES OF SNOW HAS FALLEN
  THROUGHOUT THE AREA SO FAR. A TOTAL SNOWFALL OF 10 TO 20 INCHES
  IN THE TETON MOUNTAINS WITH 12 TO 15 INCHES IN THE GROS VENTRE
  MOUNTAINS IS EXPECTED.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS...BLOWING AND AND DRIFTING SNOW IN THE OPEN AREAS. 
  VISIBILITY BELOW ONE HALF MILE AT TIMES. 

* IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES AND OTHER 
  OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS. 

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.

&&

$$

WYZ014-060000-
/O.COR.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
WIND RIVER MOUNTAINS WEST-
304 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL
  OCCUR IN THE WEST SLOPES OF THE WIND RIVER MOUNTAINS TODAY. 

* SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 15 INCHES FOR THE WEST
  SLOPES OF THE WIND RIVER MOUNTAINS.

* MOUNTAIN WIND AND VISIBILITY...WEST WINDS OF 20 TO 35 MPH WITH
  HIGHER GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW
  IN THE MOUNTAINS WITH VISIBILITY BELOW A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL OVER SOUTH PASS AND OTHER OUTDOOR ACTIVITIES
  MAY BECOME DIFFICULT. 

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.

&&

$$

WYZ024-060000-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
SALT RIVER AND WYOMING RANGES-
304 AM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW ARE
  EXPECTED TODAY. THE SNOWFALL WILL DECREASE SOMEWHAT AFTER 5 PM
  THIS EVENING.

* SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOWFALL HAS FALLEN ACROSS
  THE AREA SO FAR. A SNOWFALL TOTAL OF 10 TO 16 INCHES IN THE
  NORTH HALF OF THE RANGE WITH 8 TO 14 INCHES IN THE SOUTH HALF IS EXPECTED.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. EXPECT SNOW COVERED ROADS. 

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.

&&

$$

WYZ002-060000-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0700Z/
ABSAROKA MOUNTAINS-
304 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE
  SNOW DECREASING IN INTENSITY AFTER 5 PM THIS EVENING.

* SNOW ACCUMULATIONS...AROUND 3 INCHES OF SNOWFALL HAS OCCURRED SO
  FAR ACROSS THE NORTHWEST ABSAROKA MOUNTAINS. A TOTAL SNOWFALL OF
  8 TO 12 INCHES IS EXPECTED IN THE WEST PART OF THE RANGE...WITH
  5 TO 8 INCHES IN THE EAST PART OF THE RANGE.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. 

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.

&&

$$

WYZ015-060000-
/O.COR.KRIW.WW.Y.0033.000000T0000Z-121206T0700Z/
WIND RIVER MOUNTAINS EAST-
304 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...EXPECT PERIODS OF SNOW TODAY. SNOWFALL WILL
  DECREASE IN INTENSITY AFTER 7 PM THIS EVENING. 

* SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 12 INCHES EXCEPT 3 TO 6
  INCHES ON SOUTH PASS.

* WIND AND VISIBILITY...WEST WINDS OF 30 TO 40 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER SOUTH PASS AND OTHER OUTDOOR ACTIVITIES
  MAY BECOME DIFFICULT. 

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.

&&

$$

TEAM RIVERTON
727 
WWUS45 KRIW 051728
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1028 AM MST WED DEC 5 2012

...SNOW AND STRONG WINDS FOR THE WESTERN MOUNTAINS THROUGH EARLY THIS
EVENING...

.STRONG MOIST WESTERLY FLOW WILL CONTINUE TO RESULT IN PERIODS OF
SNOW AND STRONG WINDS IN THE WESTERN MOUNTAINS.

WYZ014-060000-
/O.CAN.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
/O.EXB.KRIW.WW.Y.0033.000000T0000Z-121206T0100Z/
WIND RIVER MOUNTAINS WEST-
1028 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND WIND WHICH IS IN EFFECT UNTIL 6 PM
MST THIS EVENING. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE
  SNOW DECREASING IN INTENSITY AFTER 6 PM THIS EVENING.

* SNOW ACCUMULATIONS...1 TO 4 INCHES OF SNOW HAS FALLEN SO FAR
  WITH TOTAL OF 6 TO 10 INCHES EXPECTED IN THE NORTHERN PART OF
  THE RANGE...WITH 4 TO 7 INCHES ON THE SOUTH END.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...ANYONE WITH OUTDOOR ACTIVITIES PLANNED SHOULD BE
  PREPARED FOR SNOW AND STRONG WIND WITH SHARPLY REDUCED
  VISIBILITY AT TIMES.

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.

&&

$$

WYZ024-060000-
/O.CAN.KRIW.WS.W.0009.000000T0000Z-121206T0700Z/
/O.EXB.KRIW.WW.Y.0033.000000T0000Z-121206T0100Z/
SALT RIVER AND WYOMING RANGES-
1028 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND WIND WHICH IS IN EFFECT
UNTIL 6 PM MST THIS EVENING. THE WINTER STORM WARNING HAS BEEN
CANCELLED. 

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE 
  SNOW DECREASING IN INTENSITY AFTER 6 PM THIS EVENING. 

* SNOW ACCUMULATIONS...2 TO 5 INCHES OF SNOWFALL HAS OCCURRED SO
  FAR ACROSS SALT AND WYOMING RANGES. TOTAL SNOWFALL OF 6 TO 12
  INCHES IS EXPECTED.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER SALT RIVER PASS WILL BE SLICK WITH SHARPLY
  REDUCED VISIBILITY AT TIMES.

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.

&&

$$

WYZ015-051830-
/O.CAN.KRIW.WW.Y.0033.000000T0000Z-121206T0700Z/
WIND RIVER MOUNTAINS EAST-
1028 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SOME LIGHT SNOW WILL STILL OCCUR TODAY...ESPECIALLY THIS AFTERNOON
WHEN A COLD FRONT MOVES ACROSS THE AREA BUT TOTAL SNOWFALL AMOUNTS
WILL ONLY RANGE FROM 1 TO 3 INCHES IN MOST AREAS. GUSTY WEST WINDS
OF 25 TO 40 MPH OVER SOUTH PASS COMBINED WITH SOME LIGHT SNOW WILL
SHARPLY REDUCE THE VISIBILITY AT TIMES TO UNDER A QUARTER MILE.

$$

WYZ001-060000-
/O.EXT.KRIW.WS.W.0009.000000T0000Z-121206T0100Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
1028 AM MST WED DEC 5 2012

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...THERE WILL WILL BE PERIODS OF MODERATE TO
  HEAVY SNOW TODAY. THE HIGHER ELEVATIONS OF YELLOWSTONE NATIONAL
  PARK WILL SEE THE MOST SNOWFALL...ESPECIALLY IN THE SOUTHWEST
  PART OF THE PARK. SNOWFALL IN THE NORTHERN HALF OF THE PARK IS
  EXPECTED TO BE MUCH LIGHTER THAN IN THE SOUTH. RAIN MAY MIX TO
  SNOW AT TIMES IN THE LOWER ELEVATIONS OF THE PARK BELOW 7500
  FEET. THE SNOWFALL WILL DECREASE AFTER 6 PM THIS EVENING.

* SNOW ACCUMULATIONS...AROUND 5 TO 10 INCHES OF SNOWFALL HAS
  FALLEN OVER THE HIGHER PORTIONS OF THE PARK...ESPECIALLY THE
  SOUTHWEST AS OF THIS MORNING WITH LITTLE SNOW ACROSS THE LOWER
  ELEVATIONS. PORTIONS OF THE PARK. A TOTAL SNOWFALL OF 10 TO 15
  INCHES WILL FALL IN THE SOUTHERN MOUNTAINS OF THE PARK WITH 6 TO
  10 INCHES IN THE NORTH. BELOW 7500 FEET...SNOW ACCUMULATIONS OF
  1 TO 4 INCHES ARE FORECAST.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES IN THE HIGHER 
  ELEVATIONS. 

* IMPACTS...OUTDOOR ACTIVITIES MAY BECOME DIFFICULT ACROSS THE 
  HIGHER ELEVATIONS AND TRAVEL ON SOME ROADS WILL BE HAZARDOUS. 

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.

&&

$$

WYZ012-060000-
/O.EXT.KRIW.WS.W.0009.000000T0000Z-121206T0100Z/
TETON AND GROS VENTRE MOUNTAINS-
1028 AM MST WED DEC 5 2012

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL
  OCCUR TODAY. SNOWFALL WILL DECREASE AFTER 6 PM THIS EVENING.
  EXPECT GUSTY WIND IN THE EXPOSED AREAS AND ON THE PEAKS.

* SNOW ACCUMULATIONS...4 TO 7 INCHES OF SNOW HAS FALLEN THROUGHOUT
  THE AREA SO FAR. A TOTAL SNOWFALL OF 8 TO 16 INCHES IN THE TETON
  MOUNTAINS WITH 6 TO 12 INCHES IN THE GROS VENTRE MOUNTAINS IS
  EXPECTED. THE LOWER ELEVATIONS BELOW 7500 FEET WILL SEE MAINLY
  RAIN.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS...BLOWING AND AND DRIFTING SNOW IN THE OPEN AREAS. 
  VISIBILITY BELOW ONE HALF MILE AT TIMES. 

* IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES AND OTHER 
  OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS. 

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.

&&

$$

WYZ002-060000-
/O.EXT.KRIW.WW.Y.0033.000000T0000Z-121206T0100Z/
ABSAROKA MOUNTAINS-
1028 AM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE
  SNOW DECREASING IN INTENSITY AFTER 6 PM THIS EVENING. THE
  MAJORITY OF THE SNOW WILL FALL IN THE HIGHER
  MOUNTAINS...ESPECIALLY IN THE SOUTHWEST PART OF THE ABSAROKAS. 

* SNOW ACCUMULATIONS...1 TO 4 INCHES OF SNOWFALL HAS OCCURRED SO
  FAR ACROSS THE ABSAROKA MOUNTAINS. A TOTAL SNOWFALL OF 5 TO 10
  INCHES IS EXPECTED IN THE WEST PART OF THE RANGE...WITH 2 TO 4 INCHES
  IN THE EAST PART OF THE RANGE.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR
  ACTIVITIES MAY BECOME DIFFICULT. NO LIGHT TRAILER TRAFFIC IS
  ADVISED OVER CHIEF JOSEPH PASS MAINLY DUE TO STRONG WINDS.

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
547 
WWUS45 KRIW 052154
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
254 PM MST WED DEC 5 2012

...SNOW AND STRONG WINDS FOR THE WESTERN MOUNTAINS THROUGH EARLY
THIS EVENING...

.STRONG MOIST WESTERLY FLOW WILL CONTINUE TO RESULT IN PERIODS OF
SNOW AND STRONG WINDS IN THE WESTERN MOUNTAINS UNTIL AROUND DARK.

WYZ001-060100-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0100Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
254 PM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...THERE WILL WILL BE PERIODS OF MODERATE TO
  HEAVY SNOW UNTIL AROUND DARK BEFORE DIMINISHING. THE HIGHER
  ELEVATIONS OF YELLOWSTONE NATIONAL PARK WILL SEE THE MOST
  SNOWFALL...ESPECIALLY IN THE SOUTHWEST PART OF THE PARK.
  SNOWFALL IN THE NORTHERN HALF OF THE PARK IS EXPECTED TO BE MUCH
  LIGHTER THAN IN THE SOUTH. RAIN MAY MIX TO SNOW AT TIMES IN THE
  LOWER ELEVATIONS OF THE PARK BELOW 7500 FEET. THE SNOWFALL WILL
  DECREASE AFTER 6 PM THIS EVENING.

* SNOW ACCUMULATIONS...AROUND 8 TO 16 INCHES OF SNOWFALL HAS
  FALLEN OVER THE HIGHER PORTIONS OF THE PARK...ESPECIALLY THE
  SOUTHWEST AS OF THIS MORNING WITH LITTLE SNOW ACROSS THE LOWER
  ELEVATIONS. LIGHTER AMOUNTS OF 3 TO 6 INCHES HAVE OCCURRED IN THE
  EASTERN PART OF THE PARK. NEW SNOWFALL WILL GENERALLY BE 1 TO 3
  INCHES WITH RAIN BELOW 7000 TO 7500 FEET.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES IN THE HIGHER 
  ELEVATIONS. 

* IMPACTS...OUTDOOR ACTIVITIES MAY BECOME DIFFICULT ACROSS THE 
  HIGHER ELEVATIONS AND TRAVEL ON SOME ROADS WILL BE HAZARDOUS. 

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.

&&

$$

WYZ012-060100-
/O.CON.KRIW.WS.W.0009.000000T0000Z-121206T0100Z/
TETON AND GROS VENTRE MOUNTAINS-
254 PM MST WED DEC 5 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...PERIODS OF MODERATE TO HEAVY SNOW WILL 
  OCCUR TODAY. SNOWFALL WILL DECREASE AFTER 6 PM THIS EVENING. 
  EXPECT GUSTY WIND IN THE EXPOSED AREAS AND ON THE PEAKS. 

* SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW HAS FALLEN
  THROUGHOUT THE AREA SO FAR. A TOTAL SNOWFALL OF 7 TO 14 INCHES
  IN THE TETON MOUNTAINS WITH 5 TO 10 INCHES IN THE GROS VENTRE
  MOUNTAINS IS EXPECTED. THE LOWER ELEVATIONS BELOW 7500 FEET WILL
  SEE MAINLY RAIN.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 30 MPH WITH HIGHER 
  GUSTS...BLOWING AND AND DRIFTING SNOW IN THE OPEN AREAS. 
  VISIBILITY BELOW ONE HALF MILE AT TIMES. 

* IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES AND OTHER 
  OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. EXPECT TRAVEL DELAYS. 

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.

&&

$$

WYZ002-060100-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0100Z/
ABSAROKA MOUNTAINS-
254 PM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE 
  SNOW DECREASING IN INTENSITY AFTER 6 PM THIS EVENING. THE 
  MAJORITY OF THE SNOW WILL FALL IN THE HIGHER MOUNTAINS... 
  ESPECIALLY IN THE SOUTHWEST PART OF THE ABSAROKAS. 

* SNOW ACCUMULATIONS...4 TO 8 INCHES OF SNOWFALL HAS OCCURRED SO
  FAR ACROSS THE SOUTHWEST PART OF THE ABSAROKA MOUNTAINS. A TOTAL
  SNOWFALL OF 5 TO 10 INCHES IS EXPECTED IN THE WEST PART OF THE
  RANGE...WITH 2 TO 4 INCHES IN THE EAST PART OF THE RANGE.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER MOUNTAIN PASSES AND OTHER OUTDOOR 
  ACTIVITIES MAY BECOME DIFFICULT. NO LIGHT TRAILER TRAFFIC IS 
  ADVISED OVER CHIEF JOSEPH PASS MAINLY DUE TO STRONG WINDS. 

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.

&&

$$

WYZ014-060100-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0100Z/
WIND RIVER MOUNTAINS WEST-
254 PM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE 
  SNOW DECREASING IN INTENSITY AFTER 6 PM THIS EVENING. 

* SNOW ACCUMULATIONS...2 TO 6 INCHES OF SNOW HAS FALLEN SO FAR 
  WITH TOTAL OF 5 TO 10 INCHES EXPECTED IN THE NORTHERN PART OF 
  THE RANGE...WITH 3 TO 6 INCHES ON THE SOUTH END. 

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...ANYONE WITH OUTDOOR ACTIVITIES PLANNED SHOULD BE 
  PREPARED FOR SNOW AND STRONG WIND WITH SHARPLY REDUCED 
  VISIBILITY AT TIMES. 

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.

&&

$$

WYZ024-060100-
/O.CON.KRIW.WW.Y.0033.000000T0000Z-121206T0100Z/
SALT RIVER AND WYOMING RANGES-
254 PM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* SUMMARY AND TIMING...PERIODS OF SNOW WILL OCCUR TODAY WITH THE 
  SNOW DECREASING IN INTENSITY AFTER 6 PM THIS EVENING. 

* SNOW ACCUMULATIONS...2 TO 6 INCHES OF SNOWFALL HAS OCCURRED SO
  FAR ACROSS SALT AND WYOMING RANGES. TOTAL SNOWFALL OF 5 TO 10
  INCHES IS EXPECTED.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH HIGHER 
  GUSTS ARE EXPECTED TO PRODUCE BLOWING AND DRIFTING SNOW WITH 
  VISIBILITY BELOW A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL OVER SALT RIVER PASS WILL BE SLICK WITH 
  SHARPLY REDUCED VISIBILITY AT TIMES. 

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
929 
WWUS45 KRIW 060105
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
605 PM MST WED DEC 5 2012


WYZ001-012-060215-
/O.EXP.KRIW.WS.W.0009.000000T0000Z-121206T0100Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
605 PM MST WED DEC 5 2012

...WINTER STORM WARNING HAS EXPIRED...

THE WINTER STORM WARNING IS NO LONGER IN EFFECT. 

DRY AIR HAD PUSHED INTO THE AREA LATE THIS AFTERNOON. SNOW HAD
ENDED ACROSS MOST OF THE AREA.

$$

WYZ002-014-024-060215-
/O.EXP.KRIW.WW.Y.0033.000000T0000Z-121206T0100Z/
ABSAROKA MOUNTAINS-WIND RIVER MOUNTAINS WEST-
SALT RIVER AND WYOMING RANGES-
605 PM MST WED DEC 5 2012

...WINTER WEATHER ADVISORY HAS EXPIRED...

THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. 

DRY AIR HAD PUSHED INTO THE AREA LATE THIS AFTERNOON. SNOW HAD
ENDED ACROSS MOST OF THE AREA.

$$

AEM

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 4, 2:56 AM MST, 7 hours 42 minutes earlier.

Area forecast discussion, Dec 4, 2:56 AM MST, 7 hours 42 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
256 AM MST TUE DEC 4 2012

.SHORT TERM...TODAY THROUGH THURSDAY NIGHT

...MORE SIGNIFICANT SNOWFALL IS EXPECTED IN THE WESTERN MOUNTAINS
TONIGHT THROUGH WEDNESDAY EVENING...

THE CIRCULATION OVER 51N/149W WILL EJECT A LEAD SHORTWAVE TOWARD
WYOMING TODAY. CURRENTLY THIS FEATURE IS OUT AT 131W AND WILL ARRIVE
AS A WEAK VORT LOBE LATER TODAY. AHEAD OF THIS FEATURE...ISENTROPIC
LIFT WILL INITIATE LIGHT SNOWFALL BY LATE THIS MORNING IN THE
WESTERN WYOMING MOUNTAINS. THEN THE MAIN TROUGH WILL TRACK EAST
ACROSS CANADA AS A CLOSED LOW WITH THE TRAILING END OF THE TROUGH
TRACKING EAST ACROSS WYOMING WEDNESDAY EVENING. ADDITIONAL
ISENTROPIC LIFT WILL ENSUE TONIGHT AHEAD OF THIS NEXT STRONGER
TROUGH. THEN PVA WILL KEEP THE SNOWFALL WEDNESDAY AND WEDNESDAY
EVENING GOING UNTIL THE TROUGHPA TAKES PLACE AROUND MIDNIGHT
WEDNESDAY NIGHT. THE MOST SIGNIFICANT MOISTURE FETCH...AFOREMENTIONED
DYNAMICS AND WESTERLY UPSLOPE FLOW WEST OF THE DIVIDE WILL TAKE
PLACE TONIGHT...WEDNESDAY AND INTO WEDNESDAY EVENING. THE DYNAMICS
DO APPEAR MARGINAL WITH THIS SYSTEM AND ABOUT HALF OF THE QPF IS
ADVERTISED WITH THIS SYSTEM FOR THE WESTERN MOUNTAINS BY THE WRF
WITH THIS WEATHER FEATURE...AS COMPARED TO THE ONE THAT AFFECTED
THESE AREAS LAST WEEKEND SO WILL GO WITH ADVISORY AMOUNTS FOR NOW.
WILL LEAVE THE WATCH AS IS EXCEPT WE WILL START THE WATCH AT 01Z
WED. SINCE AN ADVISORY WOULD NOT GO INTO EFFECT UNTIL THE SECOND
PERIOD FROM NOW...WILL LET THE DAY CREW LOOK AT ONE MORE MODEL RUN
WHICH WILL PROVIDE THE OPTION OF A POSSIBLE WARNING VS AN
ADVISORY.

LATE WEDNESDAY NIGHT AN ASSOCIATED WEAK FRONTAL BOUNDARY WILL PUSH
SOUTH ACROSS AREAS NORTH OF THE OWL CREEK MTNS AND ALONG AND EAST OF
THE BIG HORN MTNS BEFORE WASHING OUT. NOT MUCH IN THE WAY OF
DYNAMICS...JUST BOUNDARY LEVEL MOISTURE WITH THIS SURFACE FEATURE SO
WILL KEEP PRECIP AMTNS LIGHT EAST OF THE DIVIDE AFTER PRECIP IN
WESTERN WYOMING SPILLS OVER TO AREAS EAST OF THE DIVIDE LATE
WEDNESDAY NIGHT.

THEN ANOTHER SHORTWAVE TROUGH WHICH IS NOW WAY OUT BY THE SIBERIA WILL
RAPIDLY TRACK EAST AND EJECT A LEAD NEGATIVELY TILTED SHORTWAVE TOWARD
WYOMING THURSDAY. LIGHT SNOW THAT WILL STILL BE FALLING IN WESTERN
WYOMING WILL INCREASE SOMEWHAT IN INTENSITY DURING THE DAY THURSDAY
VALLEYS AND MOUNTAINS. AN ASSOCIATED SURFACE LOW WILL DEVELOP OVER
THE WIND RIVER BASIN OR THERE ABOUTS THURSDAY AND STRENGTHEN AS IT
SLIDES TO SOUTHEAST WYOMING. WITH UPSLOPE IN NORTHERN WYOMING ON
THE NORTH SIDE OF THE SURFACE LOW WEDNESDAY NIGHT ALONG WITH Q
VECTOR FORCING IN NORTHERN WY...WILL INCREASE THE PROBABILITY OF
SNOWFALL IN NORTHERN WYOMING UP AGAINST THE EAST SIDE AND ALONG
THE BIG HORN AND ABSAROKA MTNS THURSDAY NIGHT. THERE WILL BE
ENOUGH COLD AIR BEHIND THIS SYSTEM TO KEEP PRECIP ALL SNOW BY
THURSDAY NIGHT.

AS FOR WINDS...WILL UPGRADE THE HIGH WIND WATCH TO A HIGH WIND
WARNING FOR THE CODY FOOTHILLS FOR LATE THIS AFTERNOON AND TONIGHT.
THE FROUDE NUMBER IS CLOSE TO ONE FOR LATE TONIGHT. WILL NOT ISSUE
ANY HILITES FOR THE SOUTHERN WIND CORRIDOR AS THE GRADIENT AT THE
SFC AND AT H7 APPEARS MARGINAL TODAY THROUGH WEDNESDAY BUT 25 TO 35
MPH WINDS WITH SOME GUSTS IN THE 40S WILL BE COMMON. TEMPS WILL WARM
THROUGH WED TO ABOVE NORMAL TEMPS WITH HIGHS IN THE 40S LOW
ELEVATIONS WEST WITH 50S EAST. THURSDAY WILL SEE THE BEGINNING OF A
COOLING TREND.

.LONG TERM...FRIDAY THROUGH TUESDAY

SHORTWAVES IN THE NORTHWEST FLOW WILL CONTINUE TO IMPACT THE
FORECAST AREA FRIDAY AND FRIDAY NIGHT...WITH CONTINUED GOOD
CHANCES FOR SNOW WEST AND A SLIGHT CHANCE EAST. GLOBAL MODELS
SHOW A DIGGING TROUGH ACROSS THE WEST THIS WEEKEND...WITH THE MOST
SIGNIFICANT ENERGY WITH THIS TROUGH EXPECTED TO DIG FROM THE
PACIFIC NORTHWEST SATURDAY INTO THE DESERT SOUTHWEST BY SUNDAY.
THIS WILL RESULT IN AN ARCTIC COLD FRONT PUSHING SOUTH ACROSS THE
FORECAST AREA SATURDAY INTO SATURDAY NIGHT...WITH THE COLDEST AIR
OF THE SEASON BY SUNDAY. CHANCES OF SNOW WILL CONTINUE THROUGH
SATURDAY NIGHT...WITH AN EMPHASIS ACROSS THE WEST. AS THE MAIN
ENERGY DIVES WELL SOUTH OF THE AREA ACROSS THE GREAT BASIN/DESERT
SOUTHWEST SUNDAY...MAINLY DRY AND COLD CONDITIONS ARE EXPECTED SUNDAY.
HAVING SAID THAT...HAVE KEPT SOME LOW POPS ACROSS THE ENTIRE AREA
SUNDAY DUE THE MODEL VARIANCES OVER THE LAST FEW DAYS...ALTHOUGH
THE TREND HAS BEEN DRIER. ANOTHER SHORTWAVE TROUGH IS EXPECTED
SLIDE SOUTHEAST OUT OF CANADA ACROSS NORTHERN/CENTRAL ROCKIES
MONDAY...WHICH WOULD RESULT IN REINFORCING SHOT OF ARCTIC AIR AND
CHANCE OF SOME LIGHT SNOW...ESPECIALLY ACROSS THE NORTHERN
MOUNTAINS. IN WAKE OF THIS SYSTEM...MAINLY DRY CONDITIONS ARE
EXPECTED TUESDAY IN THE NORTHWEST FLOW...BUT CANNOT RULE OUT
CONTINUED MOUNTAIN SNOW SHOWERS.

&&

.AVIATION.../12Z ISSUANCE/

EAST OF THE CONTINENTAL DIVIDE...
VFR CONDITIONS WILL OCCUR TODAY AND TONIGHT. BREEZY TO WINDY AREAS
WILL OCCUR FROM JEFFREY CITY TO CASPER AND ALONG THE EAST SLOPE OF
THE ABSAROKAS AND CODY FOOTHILLS THROUGH 12Z WED.

WEST OF THE CONTINENTAL DIVIDE...
CLOUDS WILL INCREASE AND LOWER TODAY ACROSS THE WEST WITH SNOW
DEVELOPING IN THE WESTERN MOUNTAINS WITH MVFR TO IFR CONDITIONS IN
THESE AREAS. THE FAR WEST VALLEYS WILL SEE A MIX OF RAIN AND SNOW
FROM 18Z THROUGH 12Z WED. MVFR TO IFR CONDITIONS WILL OCCUR FROM
AFTON TO JACKSON AIRPORT. VFR TO MVFR CONDITIONS WILL OCCUR AT KBPI
AND KPNA TERMINAL SITES IN THE AFTERNOON AND TONIGHT.

&&

.FIRE WEATHER...

MORE SIGNIFICANT SNOWFALL IS SLATED FOR THE WESTERN MOUNTAINS ONCE
AGAIN TONIGHT THROUGH WEDNESDAY NIGHT. OTHERWISE LIGHT SNOW WILL
FALL IN THE WESTERN MOUNTAINS TODAY AS WELL AS THURSDAY AND THURSDAY
NIGHT. SOME AREAS EAST OF THE DIVIDE WILL SEE PRECIPITATION LATE
WEDNESDAY NIGHT IN THE NORTH AND EAST AND AGAIN THURSDAY NIGHT IN
NORTHERN WYOMING. WINDY AND MILD CONDITIONS CAN BE EXPECTED EAST OF
THE DIVIDE TODAY THROUGH WEDNESDAY. TEMPERATURES WILL BEGIN TO COOL
BY THURSDAY.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH FROM THIS EVENING THROUGH WEDNESDAY EVENING
WYZ001-012-014-024.

HIGH WIND WARNING FROM 2 PM THIS AFTERNOON TO 5 AM MST WEDNESDAY
WYZ003.

&&

SHORT TERM...LIPSON
LONG TERM...WM
AVIATION...AR
FIRE WEATHER...LIPSON
Hazardous weather outlook, Dec 4, 3:00 AM MST, 7 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
300 AM MST TUE DEC 4 2012

WYZ001>020-022>030-051300-
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-
300 AM MST TUE DEC 4 2012

...WINTER STORM WATCH FOR THE WESTERN MOUNTAINS TONIGHT THROUGH
MIDNIGHT WEDNESDAY NIGHT...

...HIGH WIND WARNING FOR THE CODY FOOTHILLS THIS AFTERNOON AND
TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

SIGNIFICANT SNOWFALL POSSIBLE ACROSS THE FAR WESTERN MOUNTAINS
TONIGHT. VERY STRONG WINDS DEVELOPING THIS AFTERNOON ACROSS THE CODY
FOOTHILLS AND CONTINUING INTO TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

WEDNESDAY AND WEDNESDAY NIGHT...SIGNIFICANT SNOWFALL POSSIBLE ACROSS
THE FAR WESTERN MOUNTAINS WEDNESDAY AND WEDNESDAY NIGHT WITH PERIODS
OF GUSTY WINDS EXPECTED EAST OF THE DIVIDE WEDNESDAY.

SUNDAY AND MONDAY...VERY COLD WITH HIGHS 10 TO 15 DEGREES BELOW
AVERAGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY WIND GUSTS OVER 50 MPH AS WELL
AS ANY SNOWFALL ACCUMULATION. THANK YOU.

TEAM RIVERTON

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 4, 1:55 AM MSTHigh Wind WarningRIWFremont, Natrona, Park, Sweetwater27 hr
Dec 4, 10:38 AM MSTWinter Weather AdvisoryRIWFremont, Hot Springs, Lincoln, Park, Sublette31 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.