Alert archive / Nebraska / Winter Storm Watches in 2012

Winter Storm Watch 3, NWS Cheyenne, WY

February 1, 20126 counties in Wyoming; 7 counties in Nebraska

NWS Cheyenne, WY issued this winter storm watch at Feb 1, 2012, 2:32 AM MST for 6 counties in Wyoming; 7 counties in Nebraska. It took effect at Feb 2, 2012, 11:00 AM MST. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Feb 1, 2012, 2:32 AM MST (09:32 UTC)
In effect from
Feb 2, 2012, 11:00 AM MST
Expired
Feb 2, 2012, 1:27 PM MST
In force
2 hr
Issued by
NWS Cheyenne, WY

Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Goshen County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 09:38 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.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 9.5 hours before the alert went out and 239 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, Denver, CO at 00:00Z on 2012-02-01Temperature 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, Denver, CO at 00:00Z on 2012-02-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
2804 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
81 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.

020 
WWUS45 KCYS 010932
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
232 AM MST WED FEB 1 2012

...PROLONGED HEAVY SNOW EVENT POSSIBLE THURSDAY AFTERNOON THROUGH
SATURDAY MORNING...

.A STRONG PACIFIC STORM SYSTEM CURRENTLY MOVING INTO THE NORTHERN
CALIFORNIA COAST IS EXPECTED TO DROP SOUTH INTO UTAH THROUGH THE
DAY TODAY. THE LOW IS THEN EXPECTED TO SLOWLY MOVE THROUGH
COLORADO THURSDAY AFTERNOON AND FINALLY INTO NORTHWESTERN KANSAS
AND SOUTHWESTERN NEBRASKA FRIDAY. THIS STORM WILL TAP INTO GULF
MOISTURE CURRENTLY OVER TEXAS...SPREADING THE MOISTURE NORTH INTO
EXTREME SOUTHEASTERN WYOMING AND THE SOUTHERN PANHANDLE THURSDAY
EVENING INTO SATURDAY MORNING. HEAVY SNOWS ARE POSSIBLE ACROSS THE
SOUTHERN PANHANDLE...BASICALLY ALONG AND SOUTH OF A LINE FROM
ALLIANCE TO CHUGWATER TO ARLINGTON. ANY FURTHER NORTHWARD
PROGRESSION OF THE LOW WILL HAVE HUGE IMPACTS ON SNOW AMOUNTS
ACROSS SOUTHEAST WYOMING. THE LOCATION THAT WILL LIKELY SEE THE
GREATEST SNOW ACCUMULATIONS WILL BE ALONG THE INTERSTATE 80
CORRIDOR FROM SIDNEY NEBRASKA TO LARAMIE WYOMING.

WYZ103-112-114-020000-
/O.NEW.KCYS.WS.A.0003.120202T1800Z-120203T1800Z/
NORTH LARAMIE RANGE-SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
232 AM MST WED FEB 1 2012

...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
FRIDAY MORNING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM THURSDAY MORNING THROUGH
FRIDAY MORNING. 

* TIMING...12 PM THURSDAY THROUGH 12 PM FRIDAY.

* TOTAL SNOW ACCUMULATIONS...12 TO 18 INCHES ARE POSSIBLE FOR THE
  SNOWY...SIERRA MADRE AND NORTHERN LARAMIE RANGES. HIGHER AMOUNTS
  ARE POSSIBLE FOR NORTH FACING SLOPES.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH
  WITH GUSTS TO 35 MPH ARE POSSIBLE...REDUCING VISIBILITIES TO
  LESS THAN A QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS THURSDAY
  AFTERNOON THROUGH FRIDAY MORNING WITH HEAVY SNOW AND
  CONSIDERABLE BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

&&

$$

NEZ003-019>021-054-055-096-WYZ106>108-115>119-020000-
/O.NEW.KCYS.WS.A.0003.120203T0600Z-120204T1200Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
SOUTH SIOUX-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-LARAMIE VALLEY-
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...AGATE...
BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...
TORRINGTON...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
232 AM MST WED FEB 1 2012

...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
LATE FRIDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM THURSDAY EVENING THROUGH
LATE FRIDAY NIGHT. 

* TIMING...EARLY FRIDAY MORNING THROUGH SATURDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...ALONG THE INTERSTATE 80 CORRIDOR FROM
  SIDNEY NEBRASKA TO LARAMIE WYOMING...7 TO 12 INCHES OF SNOW ARE
  POSSIBLE. TO THE NORTH OF INTERSTATE 80...5 TO 8 INCHES ARE
  POSSIBLE ALONG AND SOUTH OF A LINE FROM ALLIANCE NEBRASKA...TO
  WHEATLAND TO ARLINGTON.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH
  WITH GUSTS TO 35 MPH ARE POSSIBLE FRIDAY LATE MORNING THROUGH
  EARLY SATURDAY MORNING...REDUCING VISIBILITIES TO LESS THAN A
  QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS EARLY FRIDAY
  MORNING AND CONTINUE THROUGH SATURDAY MORNING WITH HEAVY SNOW
  AND CONSIDERABLE BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

&&

$$
3 follow-up statements
772 
WWUS45 KCYS 012148
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
248 PM MST WED FEB 1 2012

...HEAVY SNOW EVENT POSSIBLE THURSDAY NIGHT THROUGH FRIDAY...

.A STRONG PACIFIC STORM SYSTEM IS EXPECTED TO DROP SOUTH TO THE
FOUR CORNERS REGION THURSDAY MORNING THEN PROGRESS EASTWARD ACROSS
COLORADO INTO THE CENTRAL PLAINS BY LATE FRIDAY. THE STORM SYSTEM
IS EXPECTED TO SPREAD SNOW ACROSS PARTS OF THE AREA MAINLY
THURSDAY NIGHT THROUGH FRIDAY. CURRENT INDICATIONS ARE FOR THE
HEAVIEST SNOWS TO POSSIBLY FALL FROM THE SOUTHERN LARAMIE RANGE
EASTWARD ACROSS THE SOUTHERN NEBRASKA PANHANDLE.  ANY FURTHER
NORTHWARD PROGRESSION OF THE LOW WILL HAVE HUGE IMPACTS ON SNOW
AMOUNTS ACROSS SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE. 

WYZ103-112-012300-
/O.CAN.KCYS.WS.A.0003.120202T1800Z-120203T1800Z/
NORTH LARAMIE RANGE-SIERRA MADRE RANGE-
248 PM MST WED FEB 1 2012

...WINTER STORM WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
STORM WATCH. 

THE THREAT FOR HEAVY SNOWFALL HAS DIMINISHED OVER THE AREA.  

$$

WYZ114-021200-
/O.EXT.KCYS.WS.A.0003.120203T0100Z-120203T1800Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
248 PM MST WED FEB 1 2012

...WINTER STORM WATCH NOW IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY MORNING...

THE WINTER STORM WATCH IS NOW IN EFFECT FROM THURSDAY EVENING
THROUGH FRIDAY MORNING. 

* TIMING...6 PM THURSDAY THROUGH 11 PM FRIDAY.

* TOTAL SNOW ACCUMULATIONS...8 TO 11 INCHES POSSIBLE WITH LOCALLY
  HIGHER AMOUNTS FOR NORTH FACING SLOPES.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH 
  WITH GUSTS TO 35 MPH ARE POSSIBLE...REDUCING VISIBILITIES TO 
  LESS THAN A QUARTER MILE AT TIMES. 

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS THURSDAY NIGHT THROUGH
  FRIDAY MORNING WITH HEAVY SNOW AND CONSIDERABLE BLOWING AND
  DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

&&

$$

NEZ003-019>021-054-055-096-WYZ106>108-115>119-021200-
/O.EXT.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
SOUTH SIOUX-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-LARAMIE VALLEY-
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...AGATE...
BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...
TORRINGTON...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
248 PM MST WED FEB 1 2012

...WINTER STORM WATCH NOW IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY EVENING...

THE WINTER STORM WATCH IS NOW IN EFFECT FROM THURSDAY EVENING
THROUGH FRIDAY EVENING. 

* TIMING...LATE THURSDAY EVENING THROUGH FRIDAY EVENING.

* TOTAL SNOW ACCUMULATIONS...ALONG THE INTERSTATE 80 CORRIDOR FROM
  EAST OF LARAMIE TO EAST OF SIDNEY...6 TO 9 INCHES OF SNOW ARE
  POSSIBLE. FARTHER NORTH OF INTERSTATE 80...3 TO 7 INCHES ARE
  POSSIBLE ALONG AND SOUTH OF A LINE FROM ALLIANCE NEBRASKA...TO
  WHEATLAND TO ARLINGTON.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH
  WITH GUSTS TO 35 MPH ARE POSSIBLE THURSDAY NIGHT INTO FRIDAY
  MORNING...REDUCING VISIBILITIES TO AROUND A QUARTER MILE AT
  TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE THURSDAY
  NIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY SNOW AND
  CONSIDERABLE BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

&&

$$
521 
WWUS45 KCYS 021026
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
326 AM MST THU FEB 2 2012

...WINTER STORM TO IMPACT THE AREA TONIGHT THROUGH FRIDAY 
NIGHT...

.A STRONG PACIFIC STORM SYSTEM WILL DEVELOP NEAR THE FOUR CORNERS
REGION EARLY THIS MORNING AND THEN MOVE EASTWARD INTO COLORADO
LATER TODAY. SNOW WILL DEVELOP ACROSS SOUTHEAST WYOMING THIS
AFTERNOON AND EVENING AND THEN SPREAD INTO WESTERN NEBRASKA
TONIGHT. THE SNOW WILL BECOME HEAVY ALONG INTERSTATE 80 WITH NEAR
BLIZZARD CONDITIONS EXPECTED AT TIMES ON FRIDAY AS WINDS BECOME
GUSTY OUT OF THE NORTH. THE SNOW WILL SLOWLY TAPER OFF FRIDAY
NIGHT AND SATURDAY MORNING.

NEZ055-022300-
/O.UPG.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
/O.NEW.KCYS.BZ.W.0001.120203T0600Z-120204T0600Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
326 AM MST THU FEB 2 2012

...BLIZZARD WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 PM
MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST
FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

* TIMING...SNOW WILL DEVELOP TONIGHT AND BECOME HEAVY AT TIMES
  FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...8 TO 14 INCHES OF SNOW WITH THE
  HIGHEST AMOUNTS NEAR THE COLORADO BORDER.

* WINDS/VISIBILITIES...NORTH WINDS BETWEEN 20 TO 35 MPH WITH GUSTS
  UP TO 45 MPH POSSIBLE LATE TONIGHT THROUGH FRIDAY...REDUCING
  VISIBILITIES TO NEAR ZERO AT TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY DANGEROUS LATE THURSDAY
  NIGHT AND FRIDAY WITH HEAVY SNOW AND CONSIDERABLE BLOWING AND
  DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD AND TRAVEL
CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1. 

&&

$$

WYZ116>119-022300-
/O.UPG.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
/O.NEW.KCYS.WS.W.0003.120203T0000Z-120204T0600Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
326 AM MST THU FEB 2 2012

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

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND GUSTY WINDS...WHICH IS IN EFFECT
FROM 5 PM THIS AFTERNOON TO 11 PM MST FRIDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT.

* TIMING...SNOW WILL DEVELOP BY THIS EVENING AND BECOME HEAVY AT
  TIMES LATE TONIGHT THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 10 INCHES OF SNOW ALONG MOST OF
  THE INTERSTATE 80 CORRIDOR EAST OF LARAMIE...EXCEPT 8 TO 14
  INCHES OF SNOW ACROSS THE SOUTHERN LARAMIE RANGE INCLUDING THE
  INTERSTATE 80 SUMMIT.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS BETWEEN 15 TO 25
  MPH WITH GUSTS TO 35 MPH TONIGHT THROUGH FRIDAY. GUSTY WINDS
  WILL REDUCING VISIBILITIES TO AROUND A QUARTER MILE AT TIMES
  WITH BLOWING AND DRIFTING SNOW.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE TONIGHT
  AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY SNOW AND
  CONSIDERABLE BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
AND BLOWING 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.



&&

$$

NEZ020-054-022300-
/O.UPG.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
/O.NEW.KCYS.WS.W.0003.120203T0600Z-120204T0600Z/
BANNER-KIMBALL-
INCLUDING THE CITIES OF...HARRISBURG...KIMBALL
326 AM MST THU FEB 2 2012

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO
11 PM MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND GUSTY WINDS...WHICH IS IN EFFECT
FROM 11 PM THIS EVENING TO 11 PM MST FRIDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT.

* TIMING...SNOW WILL DEVELOP THIS EVENING AND TONIGHT...AND BECOME
  HEAVY AT TIMES FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 10 INCHES OF SNOW WITH THE
  HIGHEST AMOUNTS NEAR THE COLORADO BORDER.

* WINDS/VISIBILITIES...NORTH WINDS BETWEEN 20 TO 30 MPH WITH GUSTS
  UP TO 40 MPH POSSIBLE LATE TONIGHT THROUGH FRIDAY...REDUCING
  VISIBILITIES TO NEAR ZERO AT TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE 
  THURSDAY NIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY 
  SNOW AND CONSIDERABLE BLOWING AND DRIFTING SNOW. 

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. STRONG WINDS WILL
ALSO OCCUR...WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.
ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

WYZ115-022300-
/O.UPG.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
/O.NEW.KCYS.WW.Y.0004.120203T0000Z-120204T0000Z/
LARAMIE VALLEY-
INCLUDING THE CITY OF...LARAMIE
326 AM MST THU FEB 2 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...SNOW WILL DEVELOP BY THIS EVENING AND CONTINUE OFF AND
  ON THROUGH FRIDAY.

* TOTAL SNOW ACCUMULATIONS...3 TO 7 INCHES ACROSS THE LARAMIE
  VALLEY WITH LOCALLY HIGHER AMOUNTS NEAR THE SNOWY RANGE.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH
  TONIGHT AND EARLY FRIDAY MORNING. LOCALIZED BLOWING SNOW IS
  POSSIBLE ALONG INTERSTATE 80.

* IMPACTS...SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES TONIGHT
  AND FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN APPROACHING
AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ114-022300-
/O.UPG.KCYS.WS.A.0003.120203T0100Z-120203T1800Z/
/O.NEW.KCYS.WW.Y.0004.120203T0000Z-120204T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
326 AM MST THU FEB 2 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON AND CONTINUE THROUGH
  FRIDAY.

* TOTAL SNOW ACCUMULATIONS...6 TO 12 INCHES ACROSS THE SNOWY 
  RANGE.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH
  TONIGHT AND EARLY FRIDAY MORNING. LOCALIZED BLOWING SNOW IS
  POSSIBLE.

* IMPACTS...SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES TONIGHT
  AND FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN APPROACHING
AND DRIVING OVER RAILROAD CROSSINGS.
&&

$$

NEZ003-019-021-096-WYZ106>108-022300-
/O.CON.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
BOX BUTTE-SCOTTS BLUFF-MORRILL-SOUTH SIOUX-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
BRIDGEPORT...BAYARD...AGATE...BORDEAUX...GLENDO...WHEATLAND...
CHUGWATER...GUERNSEY...TORRINGTON
326 AM MST THU FEB 2 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY EVENING. 

* TIMING...LATE THURSDAY EVENING THROUGH FRIDAY EVENING.

* TOTAL SNOW ACCUMULATIONS..3 TO 7 INCHES ARE POSSIBLE ALONG THE
  NORTH PLATTE RIVER NORTH OF INTERSTATE 80.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH 
  WITH GUSTS TO 35 MPH ARE POSSIBLE THURSDAY NIGHT INTO FRIDAY 
  MORNING...REDUCING VISIBILITIES TO AROUND A QUARTER MILE AT 
  TIMES. 

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE 
  THURSDAY NIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY 
  SNOW AND CONSIDERABLE BLOWING AND DRIFTING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

&&

$$

TT
525 
WWUS45 KCYS 022027
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
127 PM MST THU FEB 2 2012

...WINTER STORM TO IMPACT THE AREA TONIGHT THROUGH FRIDAY NIGHT...

.A STRONG PACIFIC STORM SYSTEM IS DEVELOPING NEAR THE FOUR CORNERS
THIS AFTERNOON AND WILL MOVE EASTWARD INTO COLORADO AND KANSAS
TONIGHT. SNOW WILL DEVELOP ACROSS SOUTHEAST WYOMING THIS EVENING
AND THEN SPREAD INTO WESTERN NEBRASKA TONIGHT. THE SNOW WILL BECOME
HEAVY ALONG INTERSTATE 80 WITH NEAR BLIZZARD CONDITIONS EXPECTED
AT TIMES ON FRIDAY WITH GUSTY NORTH WINDS. THE SNOW WILL SLOWLY TAPER
OFF FROM WEST TO EAST ON FRIDAY NIGHT AND SATURDAY MORNING.

WYZ106-107-030830-
/O.UPG.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
/O.EXA.KCYS.WS.W.0003.120203T0000Z-120204T0600Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-
INCLUDING THE CITIES OF...BORDEAUX...GLENDO...WHEATLAND...
CHUGWATER...GUERNSEY
127 PM MST THU FEB 2 2012

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

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 PM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...THIS EVENING THROUGH FRIDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS..5 TO 7 INCHES ARE EXPECTED ALONG INTERSTATE
  25 NEAR BORDEAUX AND PORTIONS OF SOUTHERN PLATTE COUNTY.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH
  WITH GUSTS TO 35 MPH ARE POSSIBLE TONIGHT INTO FRIDAY
  MORNING...REDUCING VISIBILITIES TO AROUND A HALF MILE AT
  TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE TONIGHT
  AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY SNOW AND SOME BLOWING
  AND DRIFTING SNOW.

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.

&&

$$

NEZ021-030830-
/O.UPG.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
/O.EXA.KCYS.WS.W.0003.120203T0600Z-120204T0600Z/
MORRILL-
INCLUDING THE CITIES OF...BRIDGEPORT...BAYARD
127 PM MST THU FEB 2 2012

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO
11 PM MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 11 PM THIS
EVENING TO 11 PM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...LATE THIS EVENING THROUGH FRIDAY EVENING.

* TOTAL SNOW ACCUMULATIONS..5 TO 7 INCHES ARE EXPECTED WITH THE
  HIGHEST AMOUNTS IN SOUTHERN MORRILL COUNTY.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH
  WITH GUSTS TO 35 MPH ARE POSSIBLE TONIGHT INTO FRIDAY
  NIGHT...REDUCING VISIBILITIES TO AROUND A HALF MILE AT TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE 
  TONIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY 
  SNOW AND CONSIDERABLE BLOWING AND DRIFTING SNOW. 

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.

&&

$$

NEZ055-030830-
/O.CON.KCYS.BZ.W.0001.120203T0600Z-120204T0600Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
127 PM MST THU FEB 2 2012

...BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
11 PM MST FRIDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
11 PM MST FRIDAY. 

* TIMING...SNOW WILL DEVELOP TONIGHT AND BECOME HEAVY AT TIMES
  THROUGH FRIDAY EVENING.

* TOTAL SNOW ACCUMULATIONS...7 TO 10 INCHES OF SNOW WITH THE 
  HIGHEST AMOUNTS NEAR THE COLORADO BORDER. 

* WINDS/VISIBILITIES...NORTH WINDS BETWEEN 20 TO 35 MPH WITH GUSTS
  UP TO 40 MPH POSSIBLE LATE TONIGHT THROUGH FRIDAY...REDUCING
  VISIBILITIES TO NEAR ZERO AT TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY DANGEROUS LATE TONIGHT AND
  FRIDAY WITH HEAVY SNOW AND CONSIDERABLE BLOWING AND DRIFTING
  SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD AND TRAVEL
CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1.

&&

$$

WYZ116>119-030830-
/O.CON.KCYS.WS.W.0003.120203T0000Z-120204T0600Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
127 PM MST THU FEB 2 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 PM MST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 PM MST FRIDAY. 

* TIMING...SNOW WILL DEVELOP THIS EVENING AND BECOME HEAVY AT
  TIMES LATE TONIGHT THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 10 INCHES OF SNOW ALONG MOST 
  OF THE INTERSTATE 80 CORRIDOR EAST OF LARAMIE...EXCEPT 8 TO 14 
  INCHES OF SNOW ACROSS THE SOUTHERN LARAMIE RANGE INCLUDING THE 
  INTERSTATE 80 SUMMIT. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS BETWEEN 15 TO 25
  MPH WITH GUSTS TO 30 MPH TONIGHT THROUGH FRIDAY. GUSTY WINDS
  WILL REDUCE VISIBILITIES TO AROUND A QUARTER MILE AT TIMES WITH
  BLOWING AND DRIFTING SNOW.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE TONIGHT 
  AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY SNOW AND 
  CONSIDERABLE BLOWING AND DRIFTING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
AND BLOWING 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.

&&

$$

NEZ020-054-030830-
/O.CON.KCYS.WS.W.0003.120203T0600Z-120204T0600Z/
BANNER-KIMBALL-
INCLUDING THE CITIES OF...HARRISBURG...KIMBALL
127 PM MST THU FEB 2 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 PM MST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 PM MST FRIDAY. 

* TIMING...SNOW WILL DEVELOP TONIGHT AND BECOME HEAVY AT TIMES
  FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 10 INCHES OF SNOW WITH THE 
  HIGHEST AMOUNTS NEAR THE COLORADO BORDER. 

* WINDS/VISIBILITIES...NORTH WINDS BETWEEN 20 TO 30 MPH WITH GUSTS
  UP TO 35 MPH POSSIBLE LATE TONIGHT THROUGH FRIDAY...REDUCING
  VISIBILITIES TO LESS THAN ONE HALF MILE AT TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE 
  TONIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY 
  SNOW AND CONSIDERABLE BLOWING AND DRIFTING SNOW. 

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. STRONG WINDS
WILL ALSO OCCUR...WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR
IMPOSSIBLE. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN
CASE OF AN EMERGENCY.

&&

$$

NEZ003-019-096-WYZ108-030830-
/O.UPG.KCYS.WS.A.0003.120203T0600Z-120204T0600Z/
/O.EXB.KCYS.WW.Y.0004.120203T0600Z-120204T0600Z/
BOX BUTTE-SCOTTS BLUFF-SOUTH SIOUX-GOSHEN COUNTY-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
AGATE...TORRINGTON
127 PM MST THU FEB 2 2012

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

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
11 PM THIS EVENING TO 11 PM MST FRIDAY. THE WINTER STORM WATCH IS
NO LONGER IN EFFECT.

* TIMING...LATE THIS EVENING THROUGH FRIDAY EVENING.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES ARE EXPECTED.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH
  WITH GUSTS TO 30 MPH ARE POSSIBLE TONIGHT INTO FRIDAY
  AFTERNOON...REDUCING VISIBILITIES TO LESS THAN ONE HALF MILE AT
  TIMES.

* IMPACTS...TRAVEL COULD BECOME EXTREMELY HAZARDOUS LATE TONIGHT
  AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY SNOW AND
  CONSIDERABLE BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS AND WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ103-030830-
/O.EXA.KCYS.WW.Y.0004.120203T0000Z-120204T0000Z/
NORTH LARAMIE RANGE-
127 PM MST THU FEB 2 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST FRIDAY.

* TIMING...SNOW WILL DEVELOP THIS EVENING AND CONTINUE THROUGH 
  FRIDAY. 

* TOTAL SNOW ACCUMULATIONS...6 TO 8 INCHES ACROSS THE NORTH
  LARAMIE RANGE.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH 
  TONIGHT AND EARLY FRIDAY MORNING. LOCALIZED BLOWING SNOW IS 
  POSSIBLE. 

* IMPACTS...SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES TONIGHT
  AND FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS. 
&&

$$

WYZ114-115-030830-
/O.CON.KCYS.WW.Y.0004.120203T0000Z-120204T0000Z/
SNOWY RANGE-LARAMIE VALLEY-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE
127 PM MST THU FEB 2 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 PM MST FRIDAY. 

* TIMING...SNOW WILL DEVELOP BY THIS EVENING AND CONTINUE OFF 
  AND ON THROUGH FRIDAY. 

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES ACROSS THE LARAMIE
  VALLEY WITH LOCALLY HIGHER AMOUNTS NEAR THE SNOWY RANGE.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH 
  TONIGHT AND EARLY FRIDAY MORNING. LOCALIZED BLOWING SNOW IS 
  POSSIBLE ALONG INTERSTATE 80. 

* IMPACTS...SNOW WILL PRIMARILY CAUSE TRAVEL DIFFICULTIES 
  TONIGHT AND FRIDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

FINCH

What forecasters said that day

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

NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm watch went out at Feb 1, 2:17 AM MST, 15 minutes earlier.

Area forecast discussion, Feb 1, 2:17 AM MST, 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
217 AM MST WED FEB 1 2012

.SHORT TERM...TODAY THROUGH FRIDAY NIGHT

FORECAST MODELS SHOULD START TO COME INTO BETTER AGREEMENT NOW
THAT THE UPCOMING STORM SYSTEM HAS MOVED ONSHORE OF THE WEST
COAST. FORECAST CHALLENGES DEAL PRIMARILY WITH PRECIP TIMING AND
SNOW AMOUNTS WITH THIS STORM SYSTEM.

CURRENTLY...PACIFIC STORM SYSTEM CURRENT MOVING ONSHORE NEAR THE
NORTHERN CALIFORNIA/OREGON BORDER THIS MORNING. CLOSER TO
HOME...SURFACE HIGH PRESSURE DOMINATING SOUTHEAST WYOMING WITH
VARIABLE MID AND HIGH LEVEL CLOUDINESS FROM A WEAK UPPER LEVEL SHORTWAVE
CURRENTLY MOVING THROUGH EASTERN PORTIONS OF THE CWA. WEAK
PRESSURE GRADIENT OVER THE CWA WITH SURFACE WINDS GUSTING INTO THE
UPPER 20 MPH RANGE IN OUR WIND PRONE AREAS.

FOR TODAY...SHORTWAVE REPLACED WITH UPPER LEVEL SHORTWAVE RIDGE
THAT MOVES QUICKLY THROUGH THIS EVENING. TODAY WILL BE THE LAST
WARM AND DRY DAY FOR A WHILE WITH TEMPERATURES IN THE LOWER 50S
EAST OF THE LARAMIE RANGE...UPPER 30S WEST. ENJOY IT WHILE IT LASTS.

BY THURSDAY MORNING...SOUTHERN LOW TRACKS INTO SOUTHERN
UTAH...CLOSING OFF ON THE GFS. ECMWF IN AGREEMENT...BUT ABOUT 6
HOURS SLOWER AND SLIGHTLY FURTHER SOUTH THAN THE GFS WITH LOW
CENTERED OVER THE 4 CORNERS. BY NOON THURSDAY...SHOULD START TO
SEE SNOW SHOWERS DEVELOPING OVER THE SNOWY AND SIERRA MADRE
RANGES...BECOMING MORE WIDESPREAD AND HEAVIER AS THE AFTERNOON
PROGRESSES. LOOKS LIKE GREAT UPPER LEVEL DIVERGENCE OVER SOUTHEAST
WYOMING THURSDAY AFTERNOON WITH A 70+ KT UPPER JET TRACKING
NORTHEAST FROM SOUTHEASTERN COLORADO INTO WESTERN NEBRASKA. LOW
LEVEL SOUTHEAST WINDS OF 20 TO 25KTS DEVELOP AHEAD OF THE LOW WITH
SIGNIFICANT MOISTURE TRANSPORT AT THE 295 AND 300K PRESSURE
SURFACE OVER EASTERN COLORADO...EXTENDING UP INTO THE SOUTHERN
PANHANDLE. WENT AHEAD WITH A WINTER STORM WATCH FOR THE SNOWY AND
SIERRA MADRE RANGES AS WELL AS THE NORTHERN LARAMIE RANGE
BEGINNING THURSDAY MORNING AS THIS LOW APPROACHES. BY THURSDAY
EVENING...ALL THREE MODELS...NAM...GFS AND ECMWF PAINTING
SIGNIFICANT 6 HOUR QPF AMOUNTS OF A QUARTER INCH OVER THE SOUTHERN
LARAMIE RANGE AND SOUTHERN PANHANDLE. BEGAN THIS PORTION OF THE
WATCH THURSDAY EVENING. BUFKIT SOUNDINGS SHOW A RATHER QUICK
TURNOVER FROM RAIN TO SNOW THURSDAY EVENING AS WET BULBING TAKES
PLACE. LOOKS LIKE A 12 TO 15 HOUR PERIOD WHERE THE SOUTHERN
PANHANDLE AND SOUTHEASTERN WYOMING WILL SEE MODERATE TO HEAVY
SNOWFALL FROM THURSDAY NIGHT THROUGH MID AFTERNOON FRIDAY. WITH
VERY FAVORABLE UPSLOPING WINDS...WENT AHEAD AND INCREASED SNOW
AMOUNTS ALONG THE LARAMIE RANGE.

WE STAY IN THE NORTHERLY WRAP AROUND MOISTURE THROUGH FRIDAY
EVENING. SOME DISAGREEMENT IN MODELS AS GFS AND NAM KEEP A
SLOWER...AND MORE NORTHERN SOLUTION OVER THE ECMWF ON THIS WRAP
AROUND MOISTURE OVER THE ECMWF. KEPT WATCH GOING THROUGH FRIDAY
EVENING AS A NORTHWARD PROGRESSION OF 50 MILES OR MORE WOULD PUT
THE HEAVIER SNOW BAND RIGHT OVER SOUTHERN WYOMING INSTEAD OF
NORTHERN COLORADO AS THE ECMWF IS SUGGESTING.

.LONG TERM...SATURDAY THROUGH TUESDAY...MODELS IN POOR AGREEMENT
THIS WEEKEND AND ARE STRUGGLING WITH THE POSITION OF THE STORM
SYSTEM DRIFTING EASTWARD ACROSS THE GREAT PLAINS. THE GFS AND
ECMWF SHOW SOME LINGERING LIGHT SNOW ACROSS WESTERN NEBRASKA AND
PORTIONS OF SOUTHEAST WYOMING EAST OF THE LARAMIE RANGE SATURDAY
AND EVEN SATURDAY NIGHT. THE OTHER MODELS...INCLUDING THE GEM...SHOW
THE STORM SYSTEM PUSHING EASTWARD AND WEAKENING AS IT MOVES INTO
THE MISSISSIPPI RIVER VALLEY EARLY ON SUNDAY. MODELS INDICATE A
SECONDARY WEAK UPPER LEVEL TROUGH REMAINING OVER THE FORECAST AREA
THROUGH SUNDAY AS A REX BLOCK ATTEMPTS TO DEVELOP OVER THE CENTRAL
UNITED STATES. EXPECT COOL TEMPERATURES AND PARTLY CLOUDY SKIES TO
LINGER THROUGH SUNDAY NIGHT...WITH THE POSSIBILITY OF LIGHT SNOW
FLURRIES AT TIMES. KEPT TEMPERATURES BELOW MOS GUIDANCE DUE TO
NORTHERLY FLOW ALOFT AND THE POSSIBILITY OF A SNOW PACK ACROSS THE
AREA.

BY EARLY NEXT WEEK...MODELS IN REASONABLE AGREEMENT SHOWING A
RIDGE OF HIGH PRESSURE ALOFT BUILDING NORTHWARD ALONG THE WEST
COAST AND GRADUALLY DRIFTING EASTWARD. EXPECT SOUTHEAST WYOMING
AND WESTERN NEBRASKA TO REMAIN IN COOL NORTHERLY FLOW THROUGH
TUESDAY WITH HIGHS SLIGHTLY BELOW NORMAL. WINDS ARE EXPECTED TO
REMAIN FAIRLY LIGHT EARLY NEXT WEEK.
&&

.AVIATION...06Z TAF ISSUANCE. VFR CONDITIONS EXPECTED WITH
INTERVALS OF HIGH CLOUDS MOVING ACROSS THE AREA THROUGH THE DAY.
WINDS WILL REMAIN RELATIVELY LIGHT OUT OF THE WEST OR SOUTHWEST
TODAY AND GENERALLY BETWEEN 10 TO 20 KNOTS.
&&

.FIRE WEATHER...

AN EXTENDED SNOW EVENT ON TAP FOR MOST OF SOUTHEAST WYOMING AND
NEBRASKA PANHANDLE AS A STRONG PACIFIC STORM SYSTEM MOVES THROUGH
COLORADO. WIDESPREAD ACCUMULATING SNOW EXPECTED FOR MOST LOCATIONS
WILL EASE ANY FIRE WEATHER CONCERNS THROUGH THE WEEKEND.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...

WY...WINTER STORM WATCH FROM 11 AM THURSDAY TO 11 AM FRIDAY FOR
     WYZ103-WYZ112-WYZ114.

     WINTER STORM WATCH FROM 11 PM THURSDAY TO 5 AM SATURDAY FOR
     WYZ106-WYZ107-WYZ108-WYZ115-WYZ116-WYZ117-WYZ118-WYZ119.

NE...WINTER STORM WATCH FROM 11 PM THURSDAY TO 5 AM SATURDAY FOR
     NEZ003-NEZ019-NEZ020-NEZ021-NEZ054-NEZ055-NEZ096.

&&

SHORT TERM/FIRE WEATHER...CLAYCOMB
LONG TERM/AVIATION...TJT
Hazardous weather outlook, Jan 31, 3:16 PM MST, 11 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
316 PM MST TUE JAN 31 2012

WYZ101>119-012230-
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
316 PM MST TUE JAN 31 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING...
SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG AREA OF LOW PRESSURE WILL TRACK THROUGH THE ROCKIES ON
THURSDAY BRINGING THE POSSIBILITY OF HEAVY SNOW TO THE MOUNTAINS
WITH SOME ACCUMULATIONS ON THE EASTERN PLAINS THURSDAY AND FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

NEZ002-003-019>021-054-055-095-096-012230-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
316 PM MST TUE JAN 31 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STRONG AREA OF LOW PRESSURE WILL TRACK THROUGH THE ROCKIES ON
THURSDAY BRINGING THE POSSIBILITY OF ACCUMULATING SNOW TO THE
PANHANDLE THURSDAY NIGHT AND FRIDAY. SIGNIFICANT SNOW ACCUMULATIONS
WILL BE POSSIBLE ACROSS PORTIONS OF THE SOUTHERN NEBRASKA
PANHANDLE THURSDAY NIGHT AND FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

Nearby

Winter Storm Watches in Nebraska, 2012Winter Storm Watches in Wyoming, 2012Every winter storm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.