Alert archive / Wyoming / Winter Storm Warnings in 2013

Winter Storm Warning 4, NWS Cheyenne, WY

February 23, 2013Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Feb 23, 2013, 1:11 PM MST for Albany County, Carbon County, Wyoming. It took effect at Feb 23, 2013, 5:00 PM MST. It was in force for 24 hr. 40 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
Feb 23, 2013, 1:11 PM MST (20:11 UTC)
In effect from
Feb 23, 2013, 5:00 PM MST
Expired
Feb 24, 2013, 5:00 PM MST
In force
24 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY

The radar

The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 20:16 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
Feb 24, 4:00 AM MSTSNOW 410 Wsw Encampment, WYOLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 411 Sse Encampment, WYBLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 417 Ene Riverside, WYSOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 421 Sse Elk Mountain, WYMEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 430 Wnw Laramie, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 45 Sw Encampment, WYWEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 47 Nw Centennial, WYBROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 4.535 S Rawlins, WYSAGE CREEK BASIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7850 FEET. SNOW WATER EQUIVALENT IS 0.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 619 Wsw Encampment, WYDIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 0.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 66 Sw Centennial, WYCINNABAR PARK SNOTEL IN THE SNOWY RANGE. ELEVATION 9574 FEET. SNOW WATER EQUIVALENT IS 0.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 7.538 Sw Douglas, WYLA PRELE CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8375 FEET. SNOW WATER EQUIVALENT IS 0.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 812 Wsw Centennial, WYNORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 814 E Dixon, WYBATTLE MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7440 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 4:00 AM MSTSNOW 817 Sw Encampment, WYSANDSTONE RANGER STATION SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8150 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS.
Feb 24, 6:00 AM MSTSNOW 0.5Rawlins, WY
Feb 24, 6:00 AM MSTSNOW 1.5Laramie, WY
Feb 24, 6:00 AM MSTSNOW 1.5Saratoga, WY
Feb 24, 7:00 AM MSTSNOW 1N Sinclair, WY
Feb 24, 7:00 AM MSTSNOW 1.3Ene Laramie, WY
Feb 24, 7:00 AM MSTSNOW 2S Laramie, WY
Feb 24, 7:30 AM MSTSNOW 1.2Ne Medicine Bow, WY
Feb 24, 7:40 AM MSTSNOW 4.89 Wsw Rock River, WY
Feb 24, 9:18 AM MSTSNOW 1.3Nne Laramie, WY
Feb 24, 12:00 PM MSTSNOW 417 Ene Riverside, WYSOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS .2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 610 Wsw Encampment, WYOLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS .3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 630 Wnw Laramie, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS .3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 810 Se Laramie, WYCROW CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8330 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 812 Wsw Centennial, WYNORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 814 E Dixon, WYBATTLE MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7440 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 817 Sw Encampment, WYSANDSTONE RANGER STATION SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8150 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 102 Sw Hog Park Reservoir, WYWHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS .5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 105 Sw Encampment, WYWEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS .5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 106 Sw Centennial, WYCINNABAR PARK SNOTEL IN THE SNOWY RANGE. ELEVATION 9574 FEET. SNOW WATER EQUIVALENT IS .5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTHEAVY SNOW 1219 Wsw Encampment, WYDIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS .6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTSNOW 1238 Sw Douglas, WYLA PRELE CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8375 FEET. SNOW WATER EQUIVALENT IS .6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 12:00 PM MSTHEAVY SNOW 3035 S Rawlins, WYSAGE CREEK BASIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7850 FEET. SNOW WATER EQUIVALENT IS 2.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Feb 24, 2:35 PM MSTSNOW 2Laramie, WYLOTS OF BLOWING SNOW. ROADS ARE ICE COVERED AND SLICK.
Feb 24, 2:35 PM MSTSNOW 56 W Buford, WYSNOW COVER RUNS FROM BARE GROUND TO A FEW 6 FOOT DRIFTS.
Feb 24, 2:40 PM MSTSNOW 2Rawlins, WYSOME SLICK SPOTS ON ROADS.
Feb 24, 2:40 PM MSTSNOW 4Saratoga, 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, 8.2 hours before the alert went out and 230 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 2013-02-23Temperature 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 2013-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
1659 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
56 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.

283 
WWUS45 KCYS 232011
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
111 PM MST SAT FEB 23 2013

...WINTER STORM WARNING IN EFFECT THROUGH 5 PM MST SUNDAY FOR THE
SIERRA MADRE AND SNOWY RANGES...

...WINTER WEATHER ADVISORIES IN EFFECT FOR THE INTERSTATE 80
CORRIDOR FROM LODGE POLE NEBRASKA THROUGH RAWLINS TONIGHT THROUGH
SUNDAY AFTERNOON...

.A STRONG PACIFIC UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE INTO
WESTERN COLORADO THIS EVENING AND THEN INTO NEW MEXICO BY SUNDAY
EVENING. AHEAD OF THIS LOW PRESSURE SYSTEM...WIDESPREAD SNOW WILL
DEVELOP OVER WESTERN AND CENTRAL WYOMING...SPREADING EASTWARD INTO
EXTREME SOUTHEAST WYOMING AND NEBRASKA PANHANDLE SUNDAY MORNING.
WRAP AROUND MOISTURE TO THE NORTH OF THE LOW COULD PRODUCE
WIDESPREAD MODERATE SNOW...ALONG WITH STRONG NORTHERLY TO
NORTHEASTERLY WINDS. SNOW WILL END FROM WEST TO EAST DURING THE
AFTERNOON SUNDAY.

WYZ112-114-241200-
/O.UPG.KCYS.WW.Y.0009.000000T0000Z-130225T0000Z/
/O.NEW.KCYS.WS.W.0004.130224T0000Z-130225T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
111 PM MST SAT FEB 23 2013

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

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 5 PM MST SUNDAY. THE WINTER WEATHER ADVISORY IS NO
LONGER IN EFFECT.

* TIMING...5 PM THIS EVENING THROUGH 5 PM SUNDAY.

* TOTAL SNOW ACCUMULATIONS...10 TO 14 INCHES WITH HIGHER AMOUNTS
  ALONG WEST AND NORTHWEST FACING SLOPES.

* WINDS/VISIBILITIES...NORTHWEST 15 TO 25 MPH WITH GUSTS TO 35
  MPH TONIGHT AND SUNDAY. VISIBILITIES WILL BE REDUCED TO A HALF
  MILE AT TIMES IN BLOWING AND DRIFTING SNOW...ESPECIALLY IN OPEN
  AREAS.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO LOW VISIBILITIES AND
  SNOW PACKED ROADS. NEAR WHITEOUT CONDITIONS COULD CAUSE
  DISORIENTATION FOR SNOW MOBILERS OR OTHER OUTDOOR ENTHUSIASTS
  FREQUENTING THE SNOWY AND SIERRA MADRE RANGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL IN
THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...STAY
WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE THE
EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE POISONING.

&&

$$

WYZ103>105-109>111-113-115>118-241200-
/O.NEW.KCYS.WW.Y.0010.130224T0600Z-130225T0000Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS...
SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...
SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
111 PM MST SAT FEB 23 2013

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

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 5 PM MST SUNDAY.

* TIMING...LIGHT SNOW WILL BEGIN LATE THIS AFTERNOON ACROSS CARBON
  COUNTY...BECOMING MORE WIDESPREAD BY LATE EVENING. SNOW WILL
  SPREAD EAST TO ENCOMPASS MOST OF THE INTERSTATE 80 CORRIDOR TO
  CHEYENNE AFTER MIDNIGHT TONIGHT.

* TOTAL SNOW ACCUMULATIONS...8 TO 12 INCHES IN THE NORTHERN AND
  SOUTHERN LARAMIE RANGE. 3 TO 6 INCHES FOR VALLEY
  LOCATIONS...INCLUDING RAWLINS...BAGGS...SARATOGA...LARAMIE AND
  CHEYENNE. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS EXPECTED TO BECOME
  STRONG TOWARDS MORNING SUNDAY...WITH SUSTAINED WINDS OF 20 TO 25
  MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD BLOWING
  AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO UNDER A HALF
  MILE AT TIMES.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK
  ROADWAYS AND FALLING 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.

&&

$$

NEZ020-021-054-055-WYZ119-241200-
/O.NEW.KCYS.WW.Y.0010.130224T1200Z-130225T0600Z/
BANNER-MORRILL-KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY...BURNS...CARPENTER...ALBIN...PINE BLUFFS
111 PM MST SAT FEB 23 2013

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 11 PM MST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 AM TO 11 PM MST SUNDAY.

* TIMING...5 AM THROUGH 11 PM SUNDAY

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES FOR AREAS SOUTH OF A
  LINE FROM ALLIANCE TO HARRISBURG.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS EXPECTED TO BECOME
  STRONG BY MID MORNING SUNDAY...WITH SUSTAINED WINDS OF 20 TO 25
  MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD BLOWING
  AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO UNDER A HALF
  MILE AT TIMES.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK
  ROADWAYS AND FALLING 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.

&&

$$
4 follow-up statements
232 
WWUS45 KCYS 240409
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
909 PM MST SAT FEB 23 2013

...ACCUMULATING SNOW RETURNS TO THE REGION TONIGHT AND SUNDAY...

.A STRONG PACIFIC UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE
INTO NEW MEXICO THROUGH SUNDAY EVENING. AS THIS OCCURS...
WIDESPREAD SNOW WILL CONTINUE ACROSS SOUTHEAST WYOMING AND
NEBRASKA PANHANDLE THROUGH SUNDAY. WRAP AROUND MOISTURE TO THE
NORTH OF THE LOW COULD PRODUCE WIDESPREAD MODERATE SNOW...ALONG
WITH STRONG NORTHERLY TO NORTHEASTERLY WINDS. SNOW WILL END FROM
WEST TO EAST SUNDAY AFTERNOON

WYZ112-114-241300-
/O.CON.KCYS.WS.W.0004.000000T0000Z-130225T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
909 PM MST SAT FEB 23 2013

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

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

* TIMING...THROUGH 5 PM SUNDAY.

* TOTAL SNOW ACCUMULATIONS...10 TO 14 INCHES WITH HIGHER AMOUNTS 
  ALONG WEST AND NORTHWEST FACING SLOPES. 

* WINDS/VISIBILITIES...NORTHWEST 15 TO 25 MPH WITH GUSTS TO 35 
  MPH TONIGHT AND SUNDAY. VISIBILITIES WILL BE REDUCED TO A HALF 
  MILE AT TIMES IN BLOWING AND DRIFTING SNOW...ESPECIALLY IN 
  OPEN AREAS. 

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO LOW VISIBILITIES AND
  SNOW PACKED ROADS. NEAR WHITEOUT CONDITIONS COULD CAUSE
  DISORIENTATION FOR SNOWMOBILERS OR OTHER OUTDOOR ENTHUSIASTS
  FREQUENTING THE SNOWY AND SIERRA MADRE RANGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$

WYZ106-107-241300-
/O.EXB.KCYS.WW.Y.0010.130224T0409Z-130225T0000Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-
INCLUDING THE CITIES OF...BORDEAUX...GLENDO...WHEATLAND...
CHUGWATER...GUERNSEY
909 PM MST SAT FEB 23 2013

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 5 PM MST SUNDAY.

* TIMING...THROUGH 5 PM SUNDAY. 

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS EXPECTED TO 
  BECOME STRONG TOWARDS MORNING SUNDAY...WITH SUSTAINED WINDS OF 
  20 TO 25 MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO 
  WIDESPREAD BLOWING AND DRIFTING SNOW. VISIBILITIES WILL BE 
  REDUCED TO UNDER A HALF MILE AT TIMES. 

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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>105-109>111-113-115>118-241300-
/O.EXT.KCYS.WW.Y.0010.130224T0409Z-130225T0000Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS...
SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...
SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
909 PM MST SAT FEB 23 2013

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 PM MST SUNDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 5 PM MST
SUNDAY. 

* TIMING...THROUGH 5 PM SUNDAY. 

* TOTAL SNOW ACCUMULATIONS...8 TO 12 INCHES IN THE NORTHERN AND 
  SOUTHERN LARAMIE RANGE. 3 TO 6 INCHES FOR VALLEY LOCATIONS... 
  INCLUDING RAWLINS...BAGGS...SARATOGA...LARAMIE AND CHEYENNE. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS EXPECTED TO 
  BECOME STRONG TOWARDS MORNING SUNDAY...WITH SUSTAINED WINDS OF 
  20 TO 25 MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO 
  WIDESPREAD BLOWING AND DRIFTING SNOW. VISIBILITIES WILL BE 
  REDUCED TO UNDER A HALF MILE AT TIMES. 

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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.

&&

$$

NEZ020-021-054-055-WYZ119-241300-
/O.CON.KCYS.WW.Y.0010.130224T1200Z-130225T0600Z/
BANNER-MORRILL-KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY...BURNS...CARPENTER...ALBIN...PINE BLUFFS
909 PM MST SAT FEB 23 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM
MST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM
MST SUNDAY. 

* TIMING...THROUGH 11 PM SUNDAY.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES FOR AREAS SOUTH OF A 
  LINE FROM ALLIANCE TO HARRISBURG. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS EXPECTED TO 
  BECOME STRONG BY MID MORNING SUNDAY...WITH SUSTAINED WINDS OF 
  20 TO 25 MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO 
  WIDESPREAD BLOWING AND DRIFTING SNOW. VISIBILITIES WILL BE 
  REDUCED TO UNDER A HALF MILE AT TIMES. 

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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.

&&

$$

HAHN
850 
WWUS45 KCYS 240953
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
253 AM MST SUN FEB 24 2013

...ACCUMULATING SNOW WILL CONTINUE ACROSS THE REGION TODAY...

.A STRONG PACIFIC UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE ACROSS
THE FOUR CORNERS REGION TODAY WITH WIDESPREAD SNOW CONTINUING
ACROSS SOUTHEAST WYOMING AND NEBRASKA PANHANDLE THROUGH THE DAY.
WRAP AROUND MOISTURE TO THE NORTH OF THE LOW WILL PRODUCE
WIDESPREAD MODERATE SNOW...ALONG WITH STRONG NORTH TO
NORTHEASTERLY WINDS. SNOW WILL END FROM WEST TO EAST LATE THIS
AFTERNOON.

WYZ112-114-250000-
/O.CON.KCYS.WS.W.0004.000000T0000Z-130225T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
253 AM MST SUN FEB 24 2013

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

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

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...10 TO 14 INCHES WITH HIGHER AMOUNTS 
  ALONG WEST AND NORTHWEST FACING SLOPES. 

* WINDS/VISIBILITIES...NORTHWEST 15 TO 25 MPH WITH GUSTS TO 35 MPH.
  VISIBILITIES WILL BE REDUCED TO A HALF MILE AT TIMES IN BLOWING
  AND DRIFTING SNOW...ESPECIALLY IN OPEN AREAS.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO LOW VISIBILITIES AND 
  SNOW PACKED ROADS. NEAR WHITEOUT CONDITIONS COULD CAUSE 
  DISORIENTATION FOR SNOWMOBILERS OR OTHER OUTDOOR ENTHUSIASTS 
  FREQUENTING THE SNOWY AND SIERRA MADRE RANGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$

WYZ101-102-108-250000-
/O.EXA.KCYS.WW.Y.0010.000000T0000Z-130225T0000Z/
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...TORRINGTON
253 AM MST SUN FEB 24 2013

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

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 5 PM MST THIS AFTERNOON. 

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES...WITH THE HIGHEST
  AMOUNTS IN THE SOUTHERN PORTIONS OF CONVERSE...NIOBRARA AND
  GOSHEN COUNTIES.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST SUSTAINED WINDS OF 20
  TO 25 MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD
  BLOWING AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO UNDER
  A HALF MILE AT TIMES.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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.

&&

$$

NEZ020-021-054-055-WYZ119-250000-
/O.EXT.KCYS.WW.Y.0010.130224T0953Z-130225T0600Z/
BANNER-MORRILL-KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY...BURNS...CARPENTER...ALBIN...PINE BLUFFS
253 AM MST SUN FEB 24 2013

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING. 

* TIMING...THROUGH 11 PM TONIGHT.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES FOR AREAS SOUTH OF A 
  LINE FROM ALLIANCE TO HARRISBURG. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS ARE EXPECTED TO
  BECOME STRONG BY MID MORNING...WITH SUSTAINED WINDS OF 20 TO 25
  MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD BLOWING
  AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO UNDER A HALF
  MILE AT TIMES.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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>107-109>111-113-115>118-250000-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-130225T0000Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...BORDEAUX...
GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...RAWLINS...SINCLAIR...
HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...
ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
253 AM MST SUN FEB 24 2013

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

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

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...8 TO 12 INCHES IN THE NORTHERN AND
  SOUTHERN LARAMIE RANGE. 3 TO 6 INCHES FOR VALLEY LOCATIONS AND
  ACROSS THE EASTERN PLAINS...INCLUDING
  RAWLINS...BAGGS...SARATOGA...LARAMIE...WHEATLAND AND CHEYENNE.

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS ARE EXPECTED TO
  BECOME STRONG THIS MORNING...WITH SUSTAINED WINDS OF 20 TO 25
  MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD BLOWING
  AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO UNDER A HALF
  MILE AT TIMES.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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.

&&

$$

RJM
215 
WWUS45 KCYS 241918
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1218 PM MST SUN FEB 24 2013


WYZ101-102-106>108-242030-
/O.CAN.KCYS.WW.Y.0010.000000T0000Z-130225T0000Z/
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...LUSK...BORDEAUX...
GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON
1218 PM MST SUN FEB 24 2013

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
WEATHER ADVISORY. LIGHT SNOW HAS TAPERED OFF TO ISOLATED SNOW
FLURRIES ACROSS THE EASTERN PLAINS OF SOUTHEAST WYOMING. LITTLE OR
NO ADDITIONAL SNOW ACCUMULATION IS EXPECTED THIS AFTERNOON.
LOCALIZED BLOWING SNOW IS POSSIBLE IN AREAS OF GUSTY NORTHERLY
WINDS...WHICH MAY RESULT IN SNOW COVERED ROADWAYS AT TIMES. 

$$

WYZ112-114-250000-
/O.CON.KCYS.WS.W.0004.000000T0000Z-130225T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1218 PM MST SUN FEB 24 2013

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

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

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...10 TO 14 INCHES WITH HIGHER AMOUNTS 
  ALONG WEST AND NORTHWEST FACING SLOPES. 

* WINDS/VISIBILITIES...NORTHWEST 15 TO 25 MPH WITH GUSTS TO 35 
  MPH. VISIBILITIES WILL BE REDUCED TO A HALF MILE AT TIMES IN 
  BLOWING AND DRIFTING SNOW...ESPECIALLY IN OPEN AREAS. 

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO LOW VISIBILITIES AND 
  SNOW PACKED ROADS. NEAR WHITEOUT CONDITIONS COULD CAUSE 
  DISORIENTATION FOR SNOWMOBILERS OR OTHER OUTDOOR ENTHUSIASTS 
  FREQUENTING THE SNOWY AND SIERRA MADRE RANGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$

WYZ103>105-109>111-113-115>118-250000-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-130225T0000Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS...
SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...
SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
1218 PM MST SUN FEB 24 2013

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

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

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...8 TO 12 INCHES IN THE NORTHERN AND 
  SOUTHERN LARAMIE RANGE. 3 TO 6 INCHES FOR VALLEY LOCATIONS AND 
  ACROSS THE EASTERN PLAINS...INCLUDING RAWLINS...BAGGS... 
  SARATOGA...LARAMIE...WHEATLAND AND CHEYENNE. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS ARE EXPECTED TO 
  BECOME STRONG THIS MORNING...WITH SUSTAINED WINDS OF 20 TO 25 
  MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD BLOWING 
  AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO UNDER A 
  HALF MILE AT TIMES. 

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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.

&&

$$

NEZ020-021-054-055-WYZ119-250600-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-130225T0600Z/
BANNER-MORRILL-KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY...BURNS...CARPENTER...ALBIN...PINE BLUFFS
1218 PM MST SUN FEB 24 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING. 

* TIMING...THROUGH 11 PM TONIGHT.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES FOR AREAS SOUTH OF A 
  LINE FROM ALLIANCE TO HARRISBURG. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS ARE EXPECTED TO 
  BECOME STRONG BY MID MORNING...WITH SUSTAINED WINDS OF 20 TO 
  25 MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD 
  BLOWING AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO 
  UNDER A HALF MILE AT TIMES. 

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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.

&&

$$
018 
WWUS45 KCYS 242338
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
438 PM MST SUN FEB 24 2013

WYZ112-114-250045-
/O.EXP.KCYS.WS.W.0004.000000T0000Z-130225T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
438 PM MST SUN FEB 24 2013

...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

THE WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON.
WIDESPREAD LIGHT SNOW HAS DIMINISHED TO SCATTERED SNOW
FLURRIES. THEREFORE...WILL ALLOW THE WINTER STORM WARNING TO
EXPIRE THIS EVENING.


$$

WYZ103>105-109>111-113-115>118-250045-
/O.EXP.KCYS.WW.Y.0010.000000T0000Z-130225T0000Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS...
SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...
SARATOGA...ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
438 PM MST SUN FEB 24 2013

...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS
AFTERNOON...

THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS
AFTERNOON. THE BAND OF LIGHT SNOW HAS PUSHED SOUTH OF THE AREA
INTO COLORADO WITH ONLY A FEW LIGHT FLURRIES EXPECTED THIS
EVENING. THEREFORE...WILL ALLOW THE WINTER WEATHER ADVISORY FOR
SNOW AND BLOWING SNOW TO EXPIRE THIS EVENING,



$$

NEZ020-021-054-055-WYZ119-250600-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-130225T0600Z/
BANNER-MORRILL-KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY...BURNS...CARPENTER...ALBIN...PINE BLUFFS
438 PM MST SUN FEB 24 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING. 

* TIMING...THROUGH 11 PM TONIGHT.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES FOR AREAS SOUTH OF A 
  LINE FROM ALLIANCE TO HARRISBURG. 

* WINDS/VISIBILITIES...NORTH TO NORTHEAST WINDS SUSTAINED BETWEEN 20
  TO 25 MPH WITH GUSTS TO 35 MPH. THIS WILL LEAD TO WIDESPREAD
  BLOWING AND DRIFTING SNOW. VISIBILITIES WILL BE REDUCED TO UNDER
  A HALF MILE AT TIMES.

* IMPACTS...HAZARDOUS TRAVEL DUE TO REDUCED VISIBILITIES...SLICK 
  ROADWAYS AND FALLING 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.

&&

$$

TT

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 Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Feb 23, 10:24 AM MST, 2 hours 47 minutes earlier.

Area forecast discussion, Feb 23, 10:24 AM MST, 2 hours 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1024 AM MST SAT FEB 23 2013

.UPDATE...

.AVIATION...18Z ISSUANCE...A STORM SYSTEM APPROACH THE AREA FROM
THE NORTHWEST IS LOOKING MORE LIKELY TO PRODUCE LOCALLY HEAVY SNOW
AND PROLONGED IFR CONDITIONS FROM KRWL EASTWARD TO KCYS AND
POSSIBLY KSNY. GUSTY WINDS THIS AFTERNOON WILL EASE A BIT AND THEN
SHIFT INTO THE NORTH AT ALL TERMINALS THIS EVENING (WEST) AND
LATER TONIGHT FURTHER EAST. THE FRONT AND ASSOCIATED STORM SYSTEM
IS ABOUT 3 TO 6 HOURS SLOWER COMPARED TO PREVIOUS MODEL RUNS...SO
SHIFTED THE TIMING OF SNOW AND IFR CONDITIONS A FEW HOURS LATER.
KRWL WILL REMAIN NEAR MVFR CIGS THROUGH THE DAY...AND THEN LOWER
THIS EVENING WITH SCATTERED SNOW SHOWERS. VIS WILL THEN RAPIDLY
DECREASE ALONG THE I80 CORRIDOR WITH THE POTENTIAL FOR VIS BELOW
1/2 MILE AT TIMES LATE TONIGHT IN MODERATE TO HEAVY SNOW.
NORTHERLY WINDS WILL THEN INCREASE RAPIDLY BY EARLY TOMORROW
MORNING...WHICH MAY CREATE AREAS OF BLOWING AND DRIFTING SNOW.

.SHORT TERM UPDATE...WIND SPEEDS CONTINUE TO DECREASE THIS MORNING.
LATEST WRKHGT SHOWING A SIGNIFICANT DROP IN THE CRAIG TO CASPER
850/700MB HEIGHT GRADIENTS. WENT AHEAD AND CANCELLED THE HIGH WIND
WARNING EARLY. UPDATES HAVE BEEN SENT.

CLAYCOMB

&&

PREV DISCUSSION... /ISSUED 427 AM MST SAT FEB 23 2013/

SHORT TERM...TODAY THROUGH MONDAY...
THE PREDAWN WATER VAPOR SATELLITE ANIMATION SHOWED A PROGRESSIVE
AMPLIFIED UPPER LEVEL PATTERN WITH RIDGES OVER THE SOUTHEAST AND
APPROACHING THE ROCKIES. TROUGHS WERE SITUATED OVER THE NORTHWEST
AND FROM THE GREAT LAKES TO THE SOUTHERN GREAT PLAINS. A SWATH OF
PACIFIC MOISTURE ASSOCIATED WITH THE WESTERN RIDGE WAS MOVING EAST
INTO MONTANA AND WYOMING. THERE WERE SOME LIGHT RADAR RETURNS
ACROSS WEST AND CENTRAL WYOMING...HOWEVER SURFACE OBS INDICATED NO
LIGHT SNOWFALL. THE REGIONAL SURFACE ANALYSIS PLACED A RIDGE FROM
THE FOUR CORNERS INTO SOUTHERN WYOMING...WITH A TROUGH OVER THE
EASTERN WYOMING AND COLORADO PLAINS. A COLD FRONT EXTENDED FROM
CENTRAL MONTANA THROUGH EAST CENTRAL IDAHO AND CENTRAL NEVADA.
THE GRADIENT BETWEEN THESE FEATURES WAS SUFFICIENT TO CREATE
STRONG AND GUSTY WEST TO SOUTHWEST WINDS ALONG AND WEST OF THE
LARAMIE RANGE. GUSTS OF 60 TO 65 MPH WERE OBSERVED EARLIER AT
ARLINGTON AND NEAR ELK MOUNTAIN. SUSTAINED WINDS HAVE BEEN BETWEEN
35 AND 45 MPH. TEMPERATURES WERE IN THE TEENS AND 20S.

THE 00Z SHORT RANGE MODELS TAKE THE SHORTWAVE UPPER RIDGE QUICKLY
EAST ACROSS THE REGION TODAY. THE PACIFIC TROUGH DIGS SOUTHEAST
THROUGH THE INTERMOUNTAIN WEST TODAY AND TONIGHT...AND ACROSS THE
ROCKIES SUNDAY. THEY DEVELOP A CLOSED LOW NEAR THE FOUR CORNERS
EARLY SUNDAY MORNING...SHIFTING SOUTHEAST INTO NORTH CENTRAL NEW
MEXICO SUNDAY AFTERNOON...THEN TO THE SOUTHERN GREAT PLAINS SUNDAY
NIGHT AND MONDAY. THE MODELS HAVE BEEN TRENDING SLOWER AND A BIT
FURTHER SOUTH WITH THE TRAJECTORY OF THE UPPER LOW. A UPSTREAM
SHORTWAVE RIDGE TRANSLATES EAST ACROSS THE FRONT RANGE AND HIGH
PLAINS BY MONDAY EVENING.

A LOW PRESSURE SYSTEM AND COLD FRONT TO THE NORTHWEST MOVES
SMARTLY SOUTHEAST ACROSS THE CWA LATER THIS AFTERNOON AND EVENING.
PRECEDING THE FRONT WILL BE SOME LIGHT RAIN AND SNOW SHOWERS FROM
THE EASTERN PLAINS TO THE LARAMIE RANGE AND AREAS TO THE WEST.
STRONG AND GUSTY WEST WINDS THIS MORNING WILL DIMINISH THIS
AFTERNOON AS THE 700/850MB GRADIENTS DECREASE FROM 60-65M TO 20-30M
THIS AFTERNOON. WINDS INCREASE ONCE AGAIN FROM THE NORTHWEST
TONIGHT AND SUNDAY. PERIODS OF LIGHT TO MODERATE SNOW WILL BECOME
WIDESPREAD TONIGHT IN THE UPSLOPE WIND REGIME AND SYNOPTIC
SCALE LIFT ASSOCIATED WITH THE UPPER TROUGH. ACCUMULATIONS
TONIGHT AND SUNDAY WILL VARY FROM 1 TO 3 INCHES FOR THE PLAINS...TO
4 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS ALONG WEST AND NORTHWEST
FACING SLOPES OF THE HIGHER TERRAIN. A WINTER WEATHER ADVISORY
FOR SNOW AND BLOWING SNOW WAS ISSUED FROM LATE THIS MORNING THROUGH
LATE SUNDAY AFTERNOON FOR THE SNOWY AND SIERRA MADRE RANGES.
LIGHT SNOW LINGERS OVER THE SOUTHERN MOUNTAINS SUNDAY NIGHT...WITH
DRY CONDITIONS ELSEWHERE. IT WILL DRY MONDAY WITH A HIGH PRESSURE
RIDGE DOMINATING THE CWA.

HIGHS TODAY FOR THE PLAINS WILL BE CLOSE TO SEASONAL NORMALS WITH
MID 30S TO MID 40S...WITH 20S AND LOWER 30S TO THE WEST. LOWS
TONIGHT WILL RANGE FROM THE SINGLE DIGITS FOR THE MOUNTAINS TO THE
TEENS AND LOWER 20S ELSEWHERE. HIGHS SUNDAY WILL BE IN THE 20S TO
LOWER 30S...WITH TEENS FOR THE MOUNTAINS. LOWS SUNDAY NIGHT WILL
BE IN THE SINGLE DIGITS. HIGHS MONDAY WILL BE THE UPPER 20S AND
30S WITH TEENS TO LOWER 20S FOR THE MOUNTAINS.

LONG TERM...MONDAY NIGHT THROUGH SATURDAY...
AN UPPER LEVEL SHORTWAVE TROUGH WILL MOVE THROUGH THE GREAT BASIN
AND INTO THE SOUTHERN PLAINS MONDAY NIGHT THROUGH WEDNESDAY.
DIFFLUENT FLOW ALOFT AND PVA WILL COMBINE WITH SOME PACIFIC
MOISTURE TO BRING A GOOD CHANCE FOR LIGHT TO MODERATE SNOW SHOWERS
IN THE MOUNTAINS OF SOUTHEAST WYOMING LATE MONDAY NIGHT THROUGH
TUESDAY. LIKELY WILL SEE SOME LIGHT SNOW MOVE OFF THE MOUNTAINS
INTO THE EASTERN PLAINS AS THE WAVE MOVES ACROSS THE REGION...BUT
DRY DOWNSLOPE FLOW WILL LIMIT THE EXTENT OF COVERAGE OVER THE WY
AND NE PLAINS. TEMPERATURES WILL REMAIN ON THE CHILLY SIDE AS THE
UPPER LEVEL TROUGH AND 700 MB TEMPS OF -12 TO -16 MOVE OVERHEAD.
WINDS AHEAD OF THE ASSOCIATED PACIFIC FRONT MOVING THROUGH TUESDAY
MORNING WILL BE MODERATE TO STRONG AT TIMES IN THE WIND CORRIDOR...
AND WILL BECOME MODERATE ACROSS MUCH OF THE EASTERN PLAINS BEHIND
THE FRONT THROUGH TUESDAY AND TUESDAY NIGHT.

STRONG SURFACE HIGH PRESSURE BUILDING INTO THE WEST ON WEDNESDAY
WILL MAINTAIN BREEZY CONDITIONS ALONG AND WEST OF THE LARAMIE RANGE
ON WEDNESDAY...WITH YET ANOTHER SHORTWAVE MOVING SOUTHEAST ACROSS
THE WESTERN CONUS ON WEDNESDAY NIGHT AND THURSDAY. MODELS DIFFER
WITH THE MOVEMENT OF THIS FEATURE...WITH THE GFS IMPACTING THE
CENTRAL ROCKIES AND THE ECMWF MOVING THE FEATURE FURTHER SOUTH INTO
THE DESERT SOUTHWEST. RECENT RUNS OF BOTH MODELS ARE CONSISTENT WITH
THE FURTHER NORTH AND EAST TRACK OF THE SYSTEM...SO WILL MAINTAIN AT
LEAST SLIGHT CHANCE POPS ACROSS THE MOUNTAINS OF SOUTHEAST WYOMING
THROUGH THURSDAY EVENING. WINDS WILL CONTINUE TO BE BREEZY THURSDAY
THROUGH SATURDAY WITH THE PASSAGE OF THIS SYSTEM AND THEN AS SFC
HIGH PRESSURE BUILDS BACK INTO THE GREAT BASIN ON FRIDAY. UPPER
LEVEL RIDGE WILL BUILD OVER THE WESTERN CONUS ON FRIDAY AND
SATURDAY...SO WILL SEE A STEADY INCREASE IN TEMPERATURES THROUGH
THIS TIME AND DRY CONDITIONS MAINTAINING HOLD OVER THE REGION AS
WELL.

FIRE WEATHER...
FIRE WEATHER CONCERNS WILL BE MINIMAL THIS WEEKEND WITH PRECIPITATION
AND COOLER THAN NORMAL TEMPERATURES. STRONG WEST WINDS AREAS ALONG
AND WEST OF THE LARAMIE RANGE TODAY AS A LOW PRESSURE SYSTEM AND
COLD FRONT APPROACHES FROM THE NORTHWEST. WINDS WILL BECOME NORTHERLY
TONIGHT...AND STRONG AND GUSTY FOR THE PLAINS SUNDAY. LIGHT TO
MODERATE SNOW WILL DEVELOP OVER THE MOUNTAINS LATER THIS MORNING
AND SPREAD ONTO THE PLAINS THIS AFTERNOON AND EVENING. ACCUMULATIONS
THROUGH SUNDAY EVENING WILL RANGE FROM 1 TO 3 INCHES FOR THE
PLAINS...TO AS MUCH AS 10 INCHES OVER THE MOUNTAINS. ANOTHER LOW
PRESSURE SYSTEM WILL BRING LIGHT SNOW MONDAY NIGHT THROUGH TUESDAY
NIGHT.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER WEATHER ADVISORY UNTIL 5 PM SUNDAY FOR WYZ112-WYZ114.
NE...NONE.

&&

SHORT TERM/FIRE WEATHER...
LONG TERM/AVIATION...
Hazardous weather outlook, Feb 23, 10:10 AM MST, 3 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1010 AM MST SAT FEB 23 2013

WYZ101>119-241715-
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-
1010 AM MST SAT FEB 23 2013

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

.DAY ONE...TODAY AND TONIGHT

WEST TO SOUTHWEST WINDS WILL GUST AS HIGH AS 50 MPH THIS MORNING
FOR WIND PRONE AREAS INCLUDING ARLINGTON...BORDEAUX...INTERSTATE
80 SUMMIT AND VEDAUWOO.

LIGHT SNOW WILL DEVELOP ALONG AND WEST OF THE LARAMIE RANGE
BY MIDDAY AND SPREAD ONTO THE EASTERN PLAINS BY THIS EVENING.
THE SNOW WILL BE MODERATE AT TIMES TONIGHT FOR THE HIGHER TERRAIN.
A WINTER WEATHER ADVISORY IS IN EFFECT FOR THE SNOWY AND SIERRA
MADRE RANGES FOR SNOW AND BLOWING SNOW CREATING HAZARDOUS TRAVEL
FROM LATE THIS MORNING THROUGH SUNDAY AFTERNOON. FOR VALLEY
LOCATIONS...SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE POSSIBLE
OVERNIGHT...CREATING SLICK ROADS AND HAZARDOUS DRIVING
CONDITIONS...ESPECIALLY WEST OF THE LARAMIE RANGE TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE SNOW WILL PERSIST THROUGH SUNDAY MONDAY MORNING THEN TAPER
OFF IN THE AFTERNOON. ADDITIONAL ACCUMULATIONS OF 1 TO 2 INCHES
PLAINS AND 4 TO 10 INCHES MOUNTAINS ARE EXPECTED. NORTHWEST WINDS
WILL GUST AS HIGH AS 40 MPH SUNDAY ACROSS THE PLAINS.

IT WILL BE BLUSTERY MONDAY AND TUESDAY. ANOTHER UPPER LEVEL
WEATHER DISTURBANCE AND COLD FRONT WILL BRING PERIODS OF LIGHT
SNOW DURING THAT TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY 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>021-054-055-095-096-241715-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
1010 AM MST SAT FEB 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE.

.DAY ONE...TODAY AND TONIGHT

LIGHT SNOW WILL BECOME WIDESPREAD TONIGHT AS A COLD FRONT
MOVES THROUGH THE AREA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE SNOW WILL CONTINUE SUNDAY AND END SUNDAY EVENING. TOTAL
ACCUMULATIONS WILL RANGE FROM 2 TO 5 INCHES. THE SOUTHERN
PANHANDLE...ALONG AND SOUTH OF A LINE FROM ALLIANCE TO HARRISBURG
WILL BE THE PRIME AREA TO RECEIVE THE HIGHER SNOW AMOUNTS. NORTHWEST
WINDS WILL GUST AS HIGH AS 40 MPH SUNDAY...LEADING TO WIDESPREAD
BLOWING SNOW AND HAZARDOUS DRIVING CONDITIONS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

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

In the hours before

Local storm report, Feb 23, 7:43 AM MST, 5 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
743 AM MST SAT FEB 23 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0350 AM     NON-TSTM WND GST 8 ESE CRYSTAL LAKE RESE 41.10N 105.07W
02/23/2013  M52 MPH          LARAMIE            WY   DEPT OF HIGHWAYS

            SUSTAINED AT 40 MPH.

&&

BCHAPMAN
Local storm report, Feb 23, 7:51 AM MST, 5 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
751 AM MST SAT FEB 23 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0215 AM     NON-TSTM WND GST 2 WNW BUFORD            41.12N 105.34W
02/23/2013  M51 MPH          ALBANY             WY   DEPT OF HIGHWAYS

            44MPH SUSTAINED. 31G51 MPH AT 0730L

&&

BCHAPMAN
Local storm report, Feb 23, 7:55 AM MST, 5 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
755 AM MST SAT FEB 23 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0736 AM     NON-TSTM WND GST ARLINGTON               41.59N 106.21W
02/23/2013  M55 MPH          CARBON             WY   DEPT OF HIGHWAYS

            46 MPH SUSTAINED.

0740 AM     NON-TSTM WND GST 3 NW ARLINGTON          41.62N 106.25W
02/23/2013  M57 MPH          CARBON             WY   DEPT OF HIGHWAYS

            46 MPH SUSTAINED

&&

BCHAPMAN
Local storm report, Feb 23, 8:46 AM MST, 4 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
846 AM MST SAT FEB 23 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 AM     NON-TSTM WND GST BORDEAUX                41.95N 104.95W
02/23/2013  M51 MPH          PLATTE             WY   DEPT OF HIGHWAYS

            SUSTAINED WINDS HAVE RANGED FROM LOWER 30 TO LOWER 40
            MPH.

&&

BCHAPMAN
Local storm report, Feb 23, 9:55 AM MST, 3 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHEYENNE WY
955 AM MST SAT FEB 23 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1020 PM     NON-TSTM WND GST 7 WNW ELK MOUNTAIN      41.73N 106.54W
02/22/2013  M60.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

1045 PM     NON-TSTM WND GST 7 ESE ARLINGTON         41.55N 106.08W
02/22/2013  M62.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

1050 PM     NON-TSTM WND GST 2 E ARLINGTON           41.59N 106.17W
02/22/2013  M63.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

1050 PM     NON-TSTM WND GST 1 NNW ARLINGTON         41.60N 106.22W
02/22/2013  M63.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

1110 PM     NON-TSTM WND GST 7 ESE ARLINGTON         41.55N 106.08W
02/22/2013  M58.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

1110 PM     NON-TSTM WND GST 7 WNW ELK MOUNTAIN      41.73N 106.54W
02/22/2013  M58.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

1110 PM     NON-TSTM WND GST 2 E ARLINGTON           41.59N 106.17W
02/22/2013  M62.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

0215 AM     NON-TSTM WND GST 2 WNW BUFORD            41.12N 105.34W
02/23/2013  M51.00 MPH       ALBANY             WY   DEPT OF HIGHWAYS

            44MPH SUSTAINED. 31G51 MPH AT 0730L

0350 AM     NON-TSTM WND GST 8 ESE CRYSTAL LAKE RESE 41.10N 105.07W
02/23/2013  M52.00 MPH       LARAMIE            WY   DEPT OF HIGHWAYS

            SUSTAINED AT 40 MPH.

0506 AM     NON-TSTM WND GST 7 NW ELK MOUNTAIN       41.76N 106.51W
02/23/2013  M54.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

            45 MPH SUSTAINED.

0521 AM     NON-TSTM WND GST ARLINGTON               41.59N 106.21W
02/23/2013  M56.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

            43 MPH SUSTAINED.

0601 AM     NON-TSTM WND GST ARLINGTON               41.59N 106.21W
02/23/2013  M52.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

            42 MPH SUSTAINED

0602 AM     NON-TSTM WND GST 18 WNW CHEYENNE         41.24N 105.11W
02/23/2013  M60.00 MPH       LARAMIE            WY   TRAINED SPOTTER

0630 AM     NON-TSTM WND GST 3 NW ARLINGTON          41.62N 106.25W
02/23/2013  M52.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

            42 MPH SUSTAINED.

0736 AM     NON-TSTM WND GST ARLINGTON               41.59N 106.21W
02/23/2013  M55.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

            46 MPH SUSTAINED.

0740 AM     NON-TSTM WND GST 3 NW ARLINGTON          41.62N 106.25W
02/23/2013  M57.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

            46 MPH SUSTAINED

0820 AM     NON-TSTM WND GST BORDEAUX                41.95N 104.95W
02/23/2013  M51.00 MPH       PLATTE             WY   DEPT OF HIGHWAYS

            SUSTAINED WINDS HAVE RANGED FROM LOWER 30 TO LOWER 40
            MPH.

&&

BCHAPMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 3:28 AM MSTWinter Weather AdvisoryCYSAlbany, Carbon10 hr
Feb 23, 1:11 PM MSTWinter Weather AdvisoryCYSAlbany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more29 hr

Nearby

Winter Storm Warnings in Wyoming, 2013Every winter storm warning in 2013

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.