Alert archive / Wyoming / Winter Storm Warnings in 2015

Winter Storm Warning 15, NWS Cheyenne, WY

December 21, 2015Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Dec 21, 2015, 4:10 AM MST for Albany County, Carbon County, Wyoming. It took effect at Dec 21, 2015, 9:00 PM MST. It was in force for 44 hr. 18 reports came from inside the area while it was in force.

The area

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

The facts

Issued
Dec 21, 2015, 4:10 AM MST (11:10 UTC)
In effect from
Dec 21, 2015, 9:00 PM MST
Expired
Dec 23, 2015, 4:38 PM MST
In force
44 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 11:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

What was reported inside it

TimeReportWhereRemark
Dec 21, 9:00 PM MSTSNOW 1.516 Ene Riverside, WYSOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS .1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTSNOW 1.525 W Esterbrook, WYLA PRELE CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8375 FEET. SNOW WATER EQUIVALENT IS .1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTSNOW 212 W Centennial, WYNORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS .1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTSNOW 36 Sw Centennial, WYCINNABAR PARK SNOTEL IN THE SNOWY RANGE. ELEVATION 9574 FEET. SNOW WATER EQUIVALENT IS .2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTSNOW 4.5N Sandstone Ranger Stat, WYSANDSTONE RANGER STATION SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8150 FEET. SNOW WATER EQUIVALENT IS .3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTSNOW 4.814 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 12 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 624 W Saratoga, WYSAGE CREEK BASIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7850 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 67 Nw Centennial, WYBROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS .3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 821 Sse Elk Mountain, WYMEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS .4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 920 Wnw 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 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 98 Wsw Encampment, WYWEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS .6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 1010 Ssw Arlington, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS .5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 1611 Sse Encampment, WYBLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS .8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 21, 9:00 PM MSTHEAVY SNOW 1810 Wsw Encampment, WYOLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS .9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 23 HOURS.
Dec 22, 1:58 PM MSTHEAVY SNOW 1220 Wnw Encampment, WYDIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 39 HOURS.
Dec 22, 1:58 PM MSTHEAVY SNOW 1510 Ssw Arlington, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 39 HOURS.
Dec 22, 1:58 PM MSTHEAVY SNOW 3411 Sse Encampment, WYBLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 1.9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 39 HOURS.
Dec 22, 1:58 PM MSTHEAVY SNOW 4210 Wsw Encampment, WYOLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS 2.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 39 HOURS.

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

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 11.2 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 00:00Z on 2015-12-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2015-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.193958Sfc1 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
1149 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
229 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 211110
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
410 AM MST MON DEC 21 2015

...VERY HEAVY MOUNTAIN SNOWS LIKELY TONIGHT THROUGH WEDNESDAY...

.A STRONG PACIFIC STORM SYSTEM COMBINED WITH ABUNDANT MOISTURE
AND FAVORABLE UPSLOPE FLOW WILL SET THE STAGE FOR AN EXTENDED
PERIOD OF MODERATE TO HEAVY SNOW OVER THE SNOWY AND SIERRA MADRE
RANGES BEGINNING LATER TODAY. THIS COMBINED WITH STRONG GUSTY
WINDS WILL RESULT IN CONSIDERABLE BLOWING SNOW...LIKELY MAKING
OUTDOOR RECREATION AND MOUNTAIN TRAVEL DANGEROUS OR IMPOSSIBLE
THROUGH MID WEEK.

WYZ112-211915-
/O.UPG.KCYS.WS.A.0013.151222T0400Z-151223T1800Z/
/O.NEW.KCYS.WS.W.0015.151222T0400Z-151223T0600Z/
SIERRA MADRE RANGE-
410 AM MST MON DEC 21 2015

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO 11 PM
MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 9 PM THIS EVENING TO 11 PM MST TUESDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...THIS EVENING THROUGH LATE TUESDAY NIGHT. 

* TOTAL SNOW ACCUMULATIONS...1 TO 2 FEET. LOCALLY HIGHER AMOUNTS
  NEAR 3 FEET ARE POSSIBLE ON SOUTHWEST FACING SLOPES.

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO
  ANYONE CAUGHT OUTDOORS.

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.

&&

$$

WYZ111-211915-
/O.NEW.KCYS.WW.Y.0027.151222T0400Z-151223T0000Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
410 AM MST MON DEC 21 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
5 PM MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 9 PM THIS EVENING TO 5 PM MST TUESDAY.

* TIMING...THIS EVENING THROUGH LATE TUESDAY AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES WITH LOCALLY HIGHER
  AMOUNTS POSSIBLE NEAR THE WEST SLOPES OF THE SIERRA MADRES.

* WINDS/VISIBILITY...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 55 MPH.
  VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE AT TIMES IN
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND
  SNOW PACKED...AND MAY BE IMPASSABLE. THIS COMBINED WITH
  CONSIDERABLE BLOWING AND DRIFTING SNOW WILL CREATE DANGEROUS
  TRAVEL CONDITIONS. 

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.

&&

$$

WYZ114-211915-
/O.NEW.KCYS.WW.Y.0027.151222T0400Z-151223T0600Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
410 AM MST MON DEC 21 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
11 PM MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 9 PM THIS EVENING TO 11 PM MST TUESDAY.

* TIMING...THIS EVENING THROUGH LATE TUESDAY NIGHT. 

* TOTAL SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER
  AMOUNTS POSSIBLE.

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE
  IN FALLING AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO
  ANYONE CAUGHT OUTDOORS.

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.

&&

$$

HAMMER
12 follow-up statements
671 
WWUS45 KCYS 211723
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1023 AM MST MON DEC 21 2015

...VERY HEAVY MOUNTAIN SNOWS LIKELY TONIGHT THROUGH WEDNESDAY...

.A STRONG PACIFIC STORM SYSTEM COMBINED WITH ABUNDANT MOISTURE
AND FAVORABLE UPSLOPE FLOW WILL SET THE STAGE FOR AN EXTENDED
PERIOD OF MODERATE TO HEAVY SNOW OVER THE SNOWY AND SIERRA MADRE
RANGES BEGINNING LATER TODAY. THIS COMBINED WITH STRONG GUSTY
WINDS WILL RESULT IN CONSIDERABLE BLOWING SNOW...LIKELY MAKING
OUTDOOR RECREATION AND MOUNTAIN TRAVEL DANGEROUS OR IMPOSSIBLE
THROUGH MID WEEK.

WYZ112-220130-
/O.CON.KCYS.WS.W.0015.151222T0400Z-151223T0600Z/
SIERRA MADRE RANGE-
1023 AM MST MON DEC 21 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 11 PM MST TUESDAY...

* TIMING...THIS EVENING THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...1 TO 2 FEET. LOCALLY HIGHER AMOUNTS 
  NEAR 3 FEET ARE POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN
  FALLING AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ111-220130-
/O.CON.KCYS.WW.Y.0027.151222T0400Z-151223T0000Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
1023 AM MST MON DEC 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 5 PM MST TUESDAY...

* TIMING...THIS EVENING THROUGH LATE TUESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 6 INCHES WITH THE HIGHER AMOUNTS
  NEAR THE WEST SLOPES OF THE SIERRA MADRES.

* WINDS/VISIBILITY...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 55 
  MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE AT 
  TIMES IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND 
  SNOW PACKED...AND MAY BE IMPASSABLE. THIS COMBINED WITH 
  CONSIDERABLE BLOWING AND DRIFTING SNOW WILL CREATE DANGEROUS 
  TRAVEL CONDITIONS. 

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.

&&

$$

WYZ114-220130-
/O.CON.KCYS.WW.Y.0027.151222T0400Z-151223T0600Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1023 AM MST MON DEC 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 11 PM MST TUESDAY...

* TIMING...THIS EVENING THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER
  AMOUNTS POSSIBLE ON THE WESTERN FACING SLOPES. 2 TO 5 INCHES
  EXPECTED AROUND CENTENNIAL AND ALBANY ON THE EAST FACING SLOPES.

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$
888 
WWUS45 KCYS 212240
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
340 PM MST MON DEC 21 2015

...VERY HEAVY MOUNTAIN SNOWS LIKELY TONIGHT THROUGH WEDNESDAY...

.A STRONG PACIFIC STORM SYSTEM COMBINED WITH ABUNDANT MOISTURE
AND FAVORABLE UPSLOPE FLOW WILL SET THE STAGE FOR AN EXTENDED
PERIOD OF MODERATE TO HEAVY SNOW OVER THE SNOWY AND SIERRA MADRE
RANGES THROUGH TONIGHT. THIS COMBINED WITH STRONG GUSTY WINDS
WILL RESULT IN CONSIDERABLE BLOWING SNOW...LIKELY MAKING OUTDOOR
RECREATION AND MOUNTAIN TRAVEL DANGEROUS OR IMPOSSIBLE THROUGH MID
WEEK.

WYZ112-221130-
/O.CON.KCYS.WS.W.0015.151222T0400Z-151223T0600Z/
SIERRA MADRE RANGE-
340 PM MST MON DEC 21 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 11 PM MST TUESDAY...

* TIMING...THIS EVENING THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...1 TO 2 FEET. LOCALLY HIGHER AMOUNTS 
  NEAR 3 FEET ARE POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ111-221130-
/O.CON.KCYS.WW.Y.0027.151222T0400Z-151223T0000Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
340 PM MST MON DEC 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 5 PM MST TUESDAY...

* TIMING...THIS EVENING THROUGH LATE TUESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 6 INCHES WITH THE HIGHER 
  AMOUNTS NEAR THE WEST SLOPES OF THE SIERRA MADRES. 

* WINDS/VISIBILITY...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 55 
  MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE AT 
  TIMES IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND 
  SNOW PACKED...AND MAY BE IMPASSABLE. THIS COMBINED WITH 
  CONSIDERABLE BLOWING AND DRIFTING SNOW WILL CREATE DANGEROUS 
  TRAVEL CONDITIONS. 

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.

&&

$$

WYZ114-221130-
/O.CON.KCYS.WW.Y.0027.151222T0400Z-151223T0600Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
340 PM MST MON DEC 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 11 PM MST TUESDAY...

* TIMING...THIS EVENING THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON THE WESTERN FACING SLOPES. 2 TO 5 INCHES 
  EXPECTED AROUND CENTENNIAL AND ALBANY ON THE EAST FACING 
  SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$
043 
WWUS45 KCYS 220413
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
913 PM MST MON DEC 21 2015

...VERY HEAVY MOUNTAIN SNOWS LIKELY TONIGHT THROUGH WEDNESDAY...

...LIGHTER SNOWS COMBINED WITH STRONG WINDS IN THE LOWER
ELEVATIONS OF CARBON COUNTY WILL CREATE HAZARDOUS HIGHWAY TRAVEL
CONDITIONS LATE TONIGHT INTO TUESDAY...

.A STRONG PACIFIC STORM SYSTEM COMBINED WITH ABUNDANT MOISTURE
AND FAVORABLE UPSLOPE FLOW WILL SET THE STAGE FOR AN EXTENDED
PERIOD OF MODERATE TO HEAVY SNOW OVER THE SNOWY AND SIERRA MADRE
RANGES THROUGH TONIGHT. THIS COMBINED WITH STRONG GUSTY WINDS
WILL RESULT IN CONSIDERABLE BLOWING SNOW...LIKELY MAKING OUTDOOR
MOUNTAIN RECREATION AND MOUNTAIN TRAVEL DANGEROUS OR IMPOSSIBLE
THROUGH MID WEEK. LIGHTER SNOW AMOUNTS IN THE LOWER ELEVATIONS
WILL STILL IMPACT TRAVEL WHERE SNOW WILL BE COMBINED WITH STRONG
WINDS GUSTING 40 TO 60 MPH AT TIMES LATE TONIGHT...CREATING A
GREATER POTENTIAL FOR BLOWING SNOW AND ICE SHEETING OVER ROADWAYS.

WYZ112-221215-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151223T0600Z/
SIERRA MADRE RANGE-
913 PM MST MON DEC 21 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST
TUESDAY...

* TIMING...TONIGHT THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...1 TO 2 FEET. LOCALLY HIGHER AMOUNTS 
  NEAR 3 FEET ARE POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ109-113-221215-
/O.EXA.KCYS.WW.Y.0027.151222T0400Z-151223T0000Z/
CENTRAL CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...RAWLINS...SINCLAIR...HANNA...SARATOGA...
ENCAMPMENT...RIVERSIDE
913 PM MST MON DEC 21 2015

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

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 TUESDAY.

* TIMING...TONIGHT THROUGH LATE TUESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...SOUTHWEST 30 TO 40 MPH WITH PERIODIC GUSTS
  TO 60 MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE
  AT TIMES IN FALLING AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND
  SNOW PACKED. THIS COMBINED WITH BLOWING AND DRIFTING SNOW WILL
  CREATE DANGEROUS TRAVEL CONDITIONS.

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.

&&

$$

WYZ111-221215-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
913 PM MST MON DEC 21 2015

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

* TIMING...THIS EVENING THROUGH LATE TUESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 6 INCHES WITH THE HIGHER 
  AMOUNTS NEAR THE WEST SLOPES OF THE SIERRA MADRES. 

* WINDS/VISIBILITY...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 55 
  MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE AT 
  TIMES IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND
  SNOW PACKED. THIS COMBINED WITH BLOWING AND DRIFTING SNOW WILL
  CREATE DANGEROUS TRAVEL CONDITIONS.

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.

&&

$$

WYZ114-221215-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0600Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
913 PM MST MON DEC 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST
TUESDAY...

* TIMING...THIS EVENING THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER
  AMOUNTS POSSIBLE ON THE WESTERN FACING SLOPES OF THE SNOWY RANGE.
  2 TO 5 INCHES EXPECTED AROUND CENTENNIAL AND ALBANY ON THE EAST
  FACING SLOPES.

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$
191 
WWUS45 KCYS 220609
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1109 PM MST MON DEC 21 2015

...VERY HEAVY MOUNTAIN SNOWS LIKELY TONIGHT THROUGH WEDNESDAY...

...LIGHTER SNOWS COMBINED WITH STRONG WINDS IN THE LOWER
ELEVATIONS OF CARBON COUNTY WILL CREATE HAZARDOUS HIGHWAY TRAVEL
CONDITIONS LATE TONIGHT INTO TUESDAY...

.A STRONG PACIFIC STORM SYSTEM COMBINED WITH ABUNDANT MOISTURE
AND FAVORABLE UPSLOPE FLOW WILL SET THE STAGE FOR AN EXTENDED
PERIOD OF MODERATE TO HEAVY SNOW OVER THE SNOWY AND SIERRA MADRE
RANGES THROUGH TUESDAY. THIS COMBINED WITH STRONG GUSTY WINDS
WILL RESULT IN CONSIDERABLE BLOWING SNOW...LIKELY MAKING OUTDOOR
MOUNTAIN RECREATION AND MOUNTAIN TRAVEL DANGEROUS OR IMPOSSIBLE
THROUGH MID WEEK. LIGHTER SNOW AMOUNTS IN THE LOWER ELEVATIONS
WILL STILL IMPACT TRAVEL WHERE SNOW WILL BE COMBINED WITH STRONG
WINDS GUSTING 40 TO 60 MPH AT TIMES LATE TONIGHT...CREATING A
GREATER POTENTIAL FOR BLOWING SNOW AND ICE SHEETING OVER ROADWAYS.

WYZ114-221300-
/O.UPG.KCYS.WW.Y.0027.000000T0000Z-151223T0600Z/
/O.EXA.KCYS.WS.W.0015.000000T0000Z-151223T0600Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1109 PM MST MON DEC 21 2015

...WINTER STORM WARNING IN EFFECT UNTIL 11 PM MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT UNTIL 11 PM MST TUESDAY. THE WINTER WEATHER ADVISORY IS NO
LONGER IN EFFECT.

* TIMING...THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER
  AMOUNTS POSSIBLE ON THE WEST FACING SLOPES OF THE SNOWY RANGE.
  2 TO 5 INCHES EXPECTED AROUND CENTENNIAL AND ALBANY ON THE EAST
  FACING SLOPES.

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ112-221300-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151223T0600Z/
SIERRA MADRE RANGE-
1109 PM MST MON DEC 21 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST
TUESDAY...

* TIMING...TONIGHT THROUGH LATE TUESDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...1 TO 2 FEET. LOCALLY HIGHER AMOUNTS 
  NEAR 3 FEET ARE POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ109-111-113-221300-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
CENTRAL CARBON COUNTY-SOUTHWEST CARBON COUNTY-
UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...RAWLINS...SINCLAIR...HANNA...BAGGS...
DIXON...SARATOGA...ENCAMPMENT...RIVERSIDE
1109 PM MST MON DEC 21 2015

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

* TIMING...TONIGHT THROUGH LATE TUESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...SOUTHWEST 30 TO 40 MPH WITH PERIODIC GUSTS 
  TO 60 MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE 
  AT TIMES IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND 
  SNOW PACKED. THIS COMBINED WITH BLOWING AND DRIFTING SNOW WILL 
  CREATE DANGEROUS TRAVEL CONDITIONS. 

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.

&&

$$

CLH
940 
WWUS45 KCYS 221127
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
427 AM MST TUE DEC 22 2015

...MODERATE TO HEAVY MOUNTAIN SNOWS WILL CONTINUE THROUGH
WEDNESDAY...

...LIGHTER SNOWS COMBINED WITH STRONG WINDS IN THE LOWER
ELEVATIONS OF CARBON COUNTY WILL CONTINUE TO RESULT IN HAZARDOUS
TRAVEL CONDITIONS TODAY... 

.A STRONG PACIFIC STORM SYSTEM COMBINED WITH ABUNDANT MOISTURE
AND FAVORABLE UPSLOPE FLOW WILL SET THE STAGE FOR AN EXTENDED
PERIOD OF MODERATE TO HEAVY SNOW OVER THE SNOWY AND SIERRA MADRE
RANGES THROUGH WEDNESDAY. THIS COMBINED WITH STRONG GUSTY WINDS
WILL RESULT IN CONSIDERABLE BLOWING SNOW...LIKELY MAKING OUTDOOR
MOUNTAIN RECREATION AND MOUNTAIN TRAVEL DANGEROUS OR IMPOSSIBLE
THROUGH MID WEEK. LIGHTER SNOW AMOUNTS IN THE LOWER ELEVATIONS
WILL STILL IMPACT TRAVEL WHERE SNOW WILL BE COMBINED WITH GUSTY
WINDS...CREATING A GREATER POTENTIAL FOR BLOWING SNOW AND ICE
SHEETING OVER ROADWAYS.

WYZ112-230000-
/O.EXT.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-
427 AM MST TUE DEC 22 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM MST WEDNESDAY...

* TIMING...THROUGH WEDNESDAY AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...2 TO 3 FEET WITH LOCALLY HIGHER
  AMOUNTS POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ114-230000-
/O.EXT.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
427 AM MST TUE DEC 22 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM MST WEDNESDAY...

* TIMING...THROUGH WEDNESDAY AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER
  AMOUNTS POSSIBLE ON WEST FACING SLOPES. 2 TO 5 INCHES EXPECTED
  AROUND CENTENNIAL AND ALBANY ON THE EAST FACING SLOPES.

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ109-111-113-230000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
CENTRAL CARBON COUNTY-SOUTHWEST CARBON COUNTY-
UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...RAWLINS...SINCLAIR...HANNA...BAGGS...
DIXON...SARATOGA...ENCAMPMENT...RIVERSIDE
427 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH 5 PM THIS AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. LOCALLY HIGHER AMOUNTS
  ARE POSSIBLE ON THE WEST SIDE OF THE SIERRA MADRE MOUNTAINS.

* WINDS/VISIBILITY...SOUTHWEST 25 TO 35 MPH WITH PERIODIC GUSTS TO
  50 MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE AT
  TIMES IN FALLING AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND 
  SNOW PACKED. THIS COMBINED WITH BLOWING AND DRIFTING SNOW WILL 
  CREATE DANGEROUS TRAVEL CONDITIONS. 

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.

&&

$$

HAMMER
959 
WWUS45 KCYS 221740
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1040 AM MST TUE DEC 22 2015

...HEAVY MOUNTAIN SNOWS WILL CONTINUE THROUGH WEDNESDAY...

WYZ113-221845-
/O.CAN.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...SARATOGA...ENCAMPMENT...RIVERSIDE
1040 AM MST TUE DEC 22 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SNOW HAS DIMINISHED ACROSS CENTRAL AND SOUTHERN CARBON COUNTY THIS
MORNING. THEREFORE...THE WINTER WEATHER ADVISORY FOR SNOW AND
BLOWING SNOW HAS BEEN CANCELLED. PERIODS OF VERY LIGHT SNOW ARE
POSSIBLE THROUGH THIS AFTERNOON...BUT NO ADDITIONAL ACCUMULATIONS
ARE EXPECTED.

$$

WYZ112-230145-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-
1040 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 3 FEET WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ114-230145-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1040 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON WEST FACING SLOPES. 2 TO 5 INCHES EXPECTED 
  AROUND CENTENNIAL AND ALBANY ON THE EAST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ109-111-230000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
CENTRAL CARBON COUNTY-SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...RAWLINS...SINCLAIR...HANNA...BAGGS...
DIXON
1040 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. LOCALLY HIGHER 
  AMOUNTS ARE POSSIBLE ON THE WEST SIDE OF THE SIERRA MADRE 
  MOUNTAINS. 

* WINDS/VISIBILITY...SOUTHWEST 25 TO 35 MPH WITH PERIODIC GUSTS 
  TO 50 MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE 
  AT TIMES IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND 
  SNOW PACKED. THIS COMBINED WITH BLOWING AND DRIFTING SNOW WILL 
  CREATE DANGEROUS TRAVEL CONDITIONS. 

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.

&&

$$
230 
WWUS45 KCYS 221749
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1049 AM MST TUE DEC 22 2015

...HEAVY MOUNTAIN SNOWS WILL CONTINUE THROUGH WEDNESDAY...

WYZ109-221900-
/O.CAN.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
CENTRAL CARBON COUNTY-
INCLUDING THE CITIES OF...RAWLINS...SINCLAIR...HANNA
1049 AM MST TUE DEC 22 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SNOW HAS DIMINISHED ACROSS CENTRAL CARBON COUNTY THIS MORNING.
THEREFORE...THE WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW
HAS BEEN CANCELLED. PERIODS OF VERY LIGHT SNOW ARE POSSIBLE
THROUGH THIS AFTERNOON...BUT NO ADDITIONAL ACCUMULATIONS ARE
EXPECTED.

$$

WYZ112-230200-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-
1049 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 3 FEET WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ114-230200-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1049 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON WEST FACING SLOPES. 2 TO 5 INCHES EXPECTED 
  AROUND CENTENNIAL AND ALBANY ON THE EAST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ111-230000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
1049 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. LOCALLY HIGHER 
  AMOUNTS ARE POSSIBLE ON THE WEST SIDE OF THE SIERRA MADRE 
  MOUNTAINS. 

* WINDS/VISIBILITY...SOUTHWEST 25 TO 35 MPH WITH PERIODIC GUSTS 
  TO 50 MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE 
  AT TIMES IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND 
  SNOW PACKED. THIS COMBINED WITH BLOWING AND DRIFTING SNOW WILL 
  CREATE DANGEROUS TRAVEL CONDITIONS. 

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.

&&

$$
355 
WWUS45 KCYS 221841
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1141 AM MST TUE DEC 22 2015

...HEAVY MOUNTAIN SNOWS WILL CONTINUE THROUGH WEDNESDAY...

WYZ112-230245-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-
1141 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 3 FEET WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ114-230245-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1141 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON WEST FACING SLOPES. 2 TO 5 INCHES EXPECTED 
  AROUND CENTENNIAL AND ALBANY ON THE EAST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ110-230200-
/O.EXB.KCYS.WW.Y.0027.151222T1900Z-151223T0200Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN
1141 AM MST TUE DEC 22 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM MST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 7 PM MST THIS EVENING.

* TIMING...THROUGH THIS EVENING.

* TOTAL SNOW ACCUMULATIONS...1 TO 3 INCHES. LOCALLY HIGHER AMOUNTS
  ARE POSSIBLE NEAR ELK MOUNTAIN. 

* WINDS/VISIBILITY...WEST 20 TO 35 MPH. VISIBILITIES WILL BE
  REDUCED TO AROUND ONE HALF MILE AT TIMES IN FALLING AND BLOWING
  SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY REMAIN ICY AND
  SLICK WITH DRIFTING SNOW OVER AREA ROADWAYS. THIS COMBINED WITH
  LOW VISIBILITIES WILL CREATE HAZARDOUS TRAVEL CONDITIONS.

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.

&&

$$

WYZ111-230000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
1141 AM MST TUE DEC 22 2015

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

* TIMING...THROUGH 5 PM THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES. LOCALLY HIGHER 
  AMOUNTS ARE POSSIBLE ON THE WEST SIDE OF THE SIERRA MADRE 
  MOUNTAINS. 

* WINDS/VISIBILITY...SOUTHWEST 25 TO 35 MPH WITH PERIODIC GUSTS 
  TO 50 MPH. VISIBILITIES WILL BE REDUCED TO UNDER ONE HALF MILE 
  AT TIMES IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY BECOME ICY AND 
  SNOW PACKED. THIS COMBINED WITH BLOWING AND DRIFTING SNOW WILL 
  CREATE DANGEROUS TRAVEL CONDITIONS. 

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
923 
WWUS45 KCYS 230007
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
507 PM MST TUE DEC 22 2015

...HEAVY MOUNTAIN SNOWS WILL CONTINUE THROUGH WEDNESDAY...

WYZ111-230115-
/O.EXP.KCYS.WW.Y.0027.000000T0000Z-151223T0000Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
507 PM MST TUE DEC 22 2015

...WINTER WEATHER ADVISORY EXPIRES AT 5 PM MST THIS AFTERNOON...

MODERATE TO HEAVY SNOW IS TAPERING OFF ACROSS PORTIONS OF
SOUTHWESTERN CARBON COUNTY WYOMING. PERIODIC LIGHT SNOW WILL
CONTINUE AROUND DIXON AND BAGGS FOR THE NEXT FEW HOURS.

WHILE WIDESPREAD HAZARDOUS TRAVEL IS NOT EXPECTED IN THE LOWER
ELEVATIONS TONIGHT...MOTORISTS SHOULD EXPECT SLICK SPOTS ON AREA
ROADWAYS TO CONTINUE AND SHOULD KEEP SAFE DRIVING SPEEDS IN MIND.
MORE SNOW IS EXPECTED AGAIN TOMORROW...SO PERSONS PLANNING TRAVEL
ACROSS THE REGION SHOULD BE ALERT FOR THE POTENTIAL FOR ADDITIONAL
WINTER WEATHER ADVISORIES THROUGH CHRISTMAS DAY AND CHECK THE
FORECAST AND ROAD CONDITIONS BEFORE HEADING OUT.

$$

WYZ112-230815-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-
507 PM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 3 FEET WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ114-230815-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
507 PM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON WEST FACING SLOPES. 2 TO 5 INCHES EXPECTED 
  AROUND CENTENNIAL AND ALBANY ON THE EAST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ110-230200-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-151223T0200Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN
507 PM MST TUE DEC 22 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS
EVENING...

* TIMING...THROUGH THIS EVENING.

* TOTAL SNOW ACCUMULATIONS...1 TO 3 INCHES. LOCALLY HIGHER 
  AMOUNTS ARE POSSIBLE NEAR ELK MOUNTAIN. 

* WINDS/VISIBILITY...WEST 20 TO 35 MPH. VISIBILITIES WILL BE 
  REDUCED TO AROUND ONE HALF MILE AT TIMES IN FALLING AND 
  BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL LIKELY REMAIN ICY AND 
  SLICK WITH DRIFTING SNOW OVER AREA ROADWAYS. THIS COMBINED 
  WITH LOW VISIBILITIES WILL CREATE HAZARDOUS TRAVEL CONDITIONS. 

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.

&&

$$
575 
WWUS45 KCYS 230157
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
657 PM MST TUE DEC 22 2015

...HEAVY MOUNTAIN SNOWS WILL CONTINUE THROUGH WEDNESDAY...

WYZ110-230300-
/O.EXP.KCYS.WW.Y.0027.000000T0000Z-151223T0200Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN
657 PM MST TUE DEC 22 2015

...WINTER WEATHER ADVISORY WILL EXPIRE AT 7 PM MST THIS EVENING...

THE HIGH WINDS AND PERIODS OF HEAVIER BLOWING SNOW HAVE ENDED
ACROSS THE ARLINGTON AND ELK MOUNTAIN AREAS THIS EVENING...ALTHOUGH
PERIODS OF LIGHT TO BRIEFLY MODERATE SNOW WITH BREEZY WINDS CAN
BE EXPECTED THROUGH TONIGHT. WYDOT STILL REPORTING AREAS OF SLICK
ROAD ALONG INTERSTATE 80...SO MOTORISTS SHOULD STILL MAINTAIN SAFE
DRIVING SPEEDS AND FOLLOW INSTRUCTIONS FROM WYDOT IF DRIVING WEST
OF LARAMIE THROUGH TONIGHT. CHECK THE ROAD CONDITIONS AND LATEST
FORECASTS FOR THE NEXT FEW DAYS AS ADDITIONAL SNOWFALL IS EXPECTED
THROUGH CHRISTMAS.

$$

WYZ112-231000-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-
657 PM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...2 TO 3 FEET WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON SOUTHWEST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS AS 
  HIGH AS 70 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ114-231000-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
657 PM MST TUE DEC 22 2015

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

* TIMING...THROUGH WEDNESDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES WITH LOCALLY HIGHER 
  AMOUNTS POSSIBLE ON WEST FACING SLOPES. 2 TO 5 INCHES EXPECTED 
  AROUND CENTENNIAL AND ALBANY ON THE EAST FACING SLOPES. 

* WINDS/VISIBILITY...SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS AS 
  HIGH AS 75 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE 
  IN FALLING AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$
741 
WWUS45 KCYS 231033
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
333 AM MST WED DEC 23 2015

...MOUNTAIN SNOWS WILL CONTINUE THROUGH LATE THIS AFTERNOON...

WYZ112-240000-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-
333 AM MST WED DEC 23 2015

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

* TIMING...AFTER A BRIEF BREAK OVERNIGHT...SNOW WILL REDEVELOP
  THIS MORNING AND WILL CONTINUE THROUGH LATE THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...AN ADDITIONAL 3 TO 6 INCHES TODAY
  WILL BRING THE STORM TOTAL TO 3 TO 4 FEET. LOCALLY HIGHER
  AMOUNTS POSSIBLE ON SOUTHWEST FACING SLOPES.

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AS
  HIGH AS 50 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS POSSIBLE IN
  FALLING AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$

WYZ114-240000-
/O.CON.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
333 AM MST WED DEC 23 2015

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

* TIMING...AFTER A BRIEF BREAK OVERNIGHT...SNOW WILL REDEVELOP
  THIS MORNING AND WILL CONTINUE THROUGH LATE THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...AN ADDITION 3 TO 6 INCHES EXPECTED
  TODAY WILL BRING THE STORM TOTAL ACCUMULATION TO 1 TO 2 FEET.
  LOCALLY HIGHER AMOUNTS ARE POSSIBLE ON WEST FACING SLOPES.

* WINDS/VISIBILITY...SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AS
  HIGH AS 50 MPH POSSIBLE. NEAR WHITEOUT CONDITIONS ARE POSSIBLE
  IN FALLING AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL AND RECREATION. MOUNTAIN ROADS WILL 
  BECOME ICY AND SNOW PACKED AND WILL LIKELY BE IMPASSABLE. VERY 
  LOW VISIBILITIES AND COLD TEMPERATURES WILL BE DANGEROUS TO 
  ANYONE CAUGHT OUTDOORS. 

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.

&&

$$
549 
WWUS45 KCYS 232338
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
438 PM MST WED DEC 23 2015

...SNOW COMING TO AN END THIS EVENING...

WYZ112-114-240045-
/O.CAN.KCYS.WS.W.0015.000000T0000Z-151224T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
438 PM MST WED DEC 23 2015

...WINTER STORM WARNING IS CANCELLED...

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

SNOW WILL COME TO AN END THIS EVENING WITH ANOTHER INCH OR TWO OF
ACCUMULATION.

$$

RUBIN

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 Dec 20, 10:32 PM MST, 5 hours 38 minutes earlier.

Area forecast discussion, Dec 20, 10:32 PM MST, 5 hours 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1032 PM MST SUN DEC 20 2015

.SHORT TERM...(THIS EVENING THROUGH TUESDAY NIGHT)

INHERITED HIGH WIND WARNING FOR OUR WIND PRONE LOCATIONS
STARTING AT 9 PM THIS EVENING...LOOKS QUITE ON TRACK. OUR LOCAL WIND
PROJECT SHOWS THE CRAIG TO CASPER 700 MB GRADIENTS DIFFERENCE
INCREASING INTO THE UPPER 50S FOR METERS...AND BASED ON CURRENT
WINDS...WE EXPECT WINDS TO APPROACH OR EXCEED HIGH WIND CRITERIA BY
LATE THIS EVENING ACROSS OUR WIND PRONE LOCATIONS. LONG FETCH OF MID
LEVEL MOISTURE WILL AID IN THE PRODUCTION OF WIDESPREAD SNOW ACROSS
OUR SIERRA MADRE RANGE...WITH THE SNOWY RANGE MORE IN A SNOW SHADOW
EFFECT.

MONDAY...WINDS SHOULD REMAIN STEADY BASED ON PROJECTED CRAIG TO
CASPER HEIGHT GRADIENT DIFFERENCES. MOIST WEST FLOW ALOFT WILL
CONTINUE THE OROGRAPHIC SNOWS OVER OUR SNOWY AND SIERRA MADRE
RANGES.

TUESDAY...ANOTHER COLD FRONTAL PASSAGE EARLY IN THE DAY.
HOWEVER...WITH SIGNIFICANT DOWNSLOPE WINDS IN THE LOW LEVELS...AND
SOME SUNSHINE...WE EXPECT A RELATIVELY MILD DAY...ESPECIALLY EAST OF
THE MOUNTAINS.

TUESDAY NIGHT...MOIST WEST NORTHWEST FLOW ALOFT CONTINUES...WHICH
WILL KEEP OUR OROGRAPHIC SNOWS GOING OVER OUR SNOWY AND SIERRA MADRE
RANGES.

.LONG TERM...(WEDNESDAY THROUGH SUNDAY)
ISSUED AT 235 PM MST SUN DEC 20 2015

THERE IS INCREASING CONFIDENCE OF A  POTENTIAL WINTER WEATHER
EVENT ON CHRISTMAS DAY. THIS WEATHER SYSTEM MAY IMPACT TRAVEL AS
EARLY AS CHRISTMAS EVE THROUGH CHRISTMAS DAY. THERE ARE NOTABLE
DIFFERENCES WITH TIMING AND EVOLUTION BETWEEN MODELS AS TO BE
EXPECTED 6 DAYS OUT...BUT MODELS ARE IN MUCH BETTER AGREEMENT
COMPARED TO 24 HOURS AGO.

FOR THE MIDDLE OF THE WEEK...MODELS IN GOOD AGREEMENT AS
ANOTHER SHORTWAVE DISTURBANCE ALOFT QUICKLY MOVES ACROSS THE
NORTHERN ROCKY MOUNTAINS. A COLD FRONT WILL ALSO MOVE FROM
NORTHWEST TO SOUTHEAST ACROSS THE AREA AS WELL...BRINGING MOUNTAIN
SNOWFALL. SHOULD BE ENOUGH LLVL DYNAMICS ALONG THE FRONT FOR
LOWER ELEVATION SNOW SHOWERS AS WELL THROUGH LATE WEDNESDAY
EVENING...BUT NOT MUCH SNOW ACCUMULATION IS EXPECTED. THE BIGGER
IMPACT WILL LIKELY BE WIND AS 700MB WINDS REMAIN BETWEEN 45 TO 55
KNOTS INTO EARLY CHRISTMAS EVE (THURSDAY). HIGH WIND HEADLINES
WILL LIKELY NEED TO BE EXTENDED THROUGH AT LEAST WEDNESDAY
NIGHT...MAINLY FOR THE WIND PRONE AREAS. HOWEVER...EVEN THE HIGH
VALLEYS/PLAINS ADJACENT TO THE LARAMIE RANGE HAVE THE POTENTIAL TO
REACH 50 KNOT GUSTS...WITH THE MOST LIKELY TIME FRAME BETWEEN 21Z
AND 06Z WEDNESDAY EVENING BETWEEN RAWLINS TO CHEYENNE DUE TO COLD
AIR ADVECTION AND STRONG LLVL SUBSIDENCE.

FOR CHRISTMAS AND CHRISTMAS EVE...MID TO UPPER LEVEL FLOW BACKS
INTO THE SOUTHWEST AS A STRONG JET LIFTS NORTHWARD NEAR THE
WYOMING AND COLORADO BORDER. THUS...THIS EVENT MAY BEGIN AS AN
OVERRUNNING EVENT AS WARM AIR ADVECTION ALOFT PUSHES NORTHWARD
OVER COLD AIR NEAR THE SURFACE. ALTHOUGH THE MAIN STORM WILL
STILL BE OVER THE EASTERN GREAT BASIN REGION AND JUST BEGINNING TO
DEVELOP LATE CHRISTMAS EVE...MODELS INDICATE LIGHT SNOW DEVELOPING
AND PUSH NORTH ALONG AND AHEAD OF THE FRONTAL BOUNDARY WHICH WILL
INITIALLY MOVE NORTHWARD AS A WARM FRONT. THIS SYSTEM WILL THEN
BEGIN MOVING EAST INTO THE CENTRAL/SOUTHERN ROCKY MOUNTAINS. THE
12Z ECMWF NOW SHOWS A CLOSED LOW FORMING NEAR THE FOUR CORNERS
REGION AND STALLING AS THE UPPER LEVEL ENERGY SHIFTS SOUTHWARD.
THE 12Z GFS NOW SHOWS AN OPEN WAVE...WHICH WILL GRADUALLY WEAKEN
AS IT PUSHES ACROSS THE FORECAST AREA WHILE PRODUCING WIDESPREAD
SNOW. THE 12Z GEM IS SOMEWHERE IN BETWEEN THESE TWO
SOLUTIONS...BUT SHOWS THE UPPER LEVEL LOW OVER THE FOUR CORNERS
AREA EJECTING NORTHEAST. ALONG WITH CONSIDERABLE DIFFERENCES IN
EVOLUTION...THERE IS A 70 KNOT DIFFERENCE IN JET SPEED BETWEEN THE
ECMWF AND GFS...WITH THE GFS BEING THE STRONGEST. EVEN WITH THESE
DIFFERENCES...CONFIDENT ENOUGH FOR WIDESPREAD SNOW TO INCREASE POP
OVER 30 PERCENT OVER THE MOUNTAINS AND HIGH PLAINS CHRISTMAS EVE
THROUGH CHRISTMAS DAY. APPEARS TO BE A LIGHT TO MODERATE SNOWFALL
EVENT...BUT WILL HAVE IMPACTS EITHER WAY CONSIDERING THE BUSY
HOLIDAY TRAVEL PERIOD. TEMPERATURES WILL CONTINUE TO BE
COLD...WITH HIGHS IN THE 20S TO LOW 30S.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z MONDAY NIGHT)
ISSUED AT 1028 PM MST SUN DEC 20 2015

WYOMING TAFS...VFR AT RAWLINS...EXCEPT MVFR FROM 10Z TO 16Z.
VFR AT LARAMIE AND CHEYENNE WITH CEILINGS AT OR ABOVE 12000 FEET
AGL. GUSTS OF 28 TO 32 KNOTS.

NEBRASKA TAFS...PERIODS OF IFR AT CHADRON AND ALLIANCE THROUGH
09Z...THEN VFR WITH CEILINGS ABOVE 12000 FEET AGL. PERIODS OF
IFR AND MVFR AT SCOTTSBLUFF AND SIDNEY THROUGH 09Z...THEN VFR
WITH CEILINGS AT OR ABOVE 12000 FEET AGL AFTER 15Z.

&&

.FIRE WEATHER...
ISSUED AT 154 PM MST SUN DEC 20 2015

NO CONCERNS BASED ON PROJECTED HUMIDITIES.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER STORM WATCH FROM MONDAY EVENING THROUGH WEDNESDAY MORNING
     FOR WYZ112.

     HIGH WIND WARNING UNTIL 9 AM MST TUESDAY FOR WYZ106-110-116-117.

NE...NONE.
&&

SHORT TERM...RUBIN
LONG TERM...TJT
AVIATION...RUBIN
FIRE WEATHER...RUBIN
Hazardous weather outlook, Dec 20, 5:34 AM MST, 22 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
534 AM MST SUN DEC 20 2015

WYZ101>119-211245-
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-
534 AM MST SUN DEC 20 2015

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

.DAY ONE...TODAY AND TONIGHT

WEST-TO-SOUTHWEST WINDS WILL INCREASE OVER THE TYPICAL WIND PRONE
LOCATIONS OF SOUTHEAST WYOMING THIS EVENING AND BECOME STRONG BY
LATE TONIGHT. WIND GUSTS OF 60 TO 70 MPH CAN BE EXPECTED. A HIGH
WIND WARNING HAS BEEN ISSUED FOR ARLINGTON...BORDEAUX...AND THE
INTERSTATE 80 CORRIDOR BETWEEN LARAMIE AND CHEYENNE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

BREEZY TO WINDY CONDITIONS CAN BE EXPECTED ACROSS A LARGE PORTION
OF SOUTHEAST WYOMING THROUGH THURSDAY. A MORE WIDESPREAD HIGH WIND
EPISODE IS POSSIBLE ON WEDNESDAY...WITH WIND GUSTS IN EXCESS OF 60
MPH POSSIBLY SPREADING INTO THE PLAINS AND HIGH VALLEYS.

HEAVY MOUNTAIN SNOW IS POSSIBLE FROM MONDAY THROUGH WEDNESDAY. A
WINTER STORM WATCH HAS BEEN ISSUED FOR THE SIERRA MADRE RANGE. 1
TO 2 FEET OF SNOW IS EXPECTED...ALONG WITH STRONG WINDS.

AN AREA OF LOW PRESSURE WILL MOVE INTO THE ROCKIES LATER THIS WEEK
AROUND THE CHRISTMAS HOLIDAY. SNOW COULD HAVE AN IMPACT ON TRAVEL
PLANS ACROSS THE AREA...SO BE SURE TO MONITOR THE LATEST FORECAST
INFORMATION OVER THE NEXT SEVERAL DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

NEZ002-003-019>021-054-055-095-096-211245-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
534 AM MST SUN DEC 20 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN
NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

STRONG WINDS ARE POSSIBLE OVER THE SOUTHERN NEBRASKA PANHANDLE ON
WEDNESDAY AFTERNOON.

AN AREA OF LOW PRESSURE WILL MOVE INTO THE ROCKIES LATER THIS WEEK
AROUND THE CHRISTMAS HOLIDAY. SNOW COULD HAVE AN IMPACT ON TRAVEL
PLANS ACROSS THE AREA...SO BE SURE TO MONITOR THE LATEST FORECAST
INFORMATION OVER THE NEXT SEVERAL DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

HAMMER

In the hours before

Local storm report, Dec 20, 10:26 PM MST, 5 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
1026 PM MST SUN DEC 20 2015

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

1010 PM     HIGH SUST WINDS  7 NW ELK MOUNTAIN       41.75N 106.51W
12/20/2015  M45 MPH          CARBON             WY   DEPT OF HIGHWAYS

            WYSOT SITE AT HALLECK RIDGE. SUSTAINED WINDS OF 40 TO 49
            MPH FOR PAST HOUR. GUSTS RANGING FROM 46 TO 56 MPH.

&&

GCLAYCOM
Local storm report, Dec 20, 10:27 PM MST, 5 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHEYENNE WY
1027 PM MST SUN DEC 20 2015

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

1010 PM     HIGH SUST WINDS  7 NW ELK MOUNTAIN       41.75N 106.51W
12/20/2015  M45.00 MPH       CARBON             WY   DEPT OF HIGHWAYS

            WYDOT SITE AT HALLECK RIDGE. SUSTAINED WINDS OF 40 TO 49
            MPH FOR PAST HOUR. GUSTS RANGING FROM 46 TO 56 MPH.

&&

GCLAYCOM
Local storm report, Dec 21, 12:30 AM MST, 3 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
1230 AM MST MON DEC 21 2015

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

1105 PM     HIGH SUST WINDS  5 NW ARLINGTON          41.64N 106.29W
12/20/2015  M44 MPH          CARBON             WY   DEPT OF HIGHWAYS

            WYDOT SITE AT WAGONHOUND. SUSTAINED WINDS OF 40 TO 48 MPH
            FOR PAST HOUR. GUSTS TO 56 MPH.

1156 AM     NON-TSTM WND GST ARLINGTON               41.59N 106.21W
12/20/2015  M58 MPH          CARBON             WY   DEPT OF HIGHWAYS

            ARLINGTON WEST WYDOT SITE. SUSTAINED WINDS 47 MPH.

1228 AM     HIGH SUST WINDS  5 NW ARLINGTON          41.64N 106.29W
12/21/2015  M47 MPH          CARBON             WY   DEPT OF HIGHWAYS

            WAGONHOUND WYDOT SITE. SUSTAINED 44 TO 49 MPH OVER PAST
            HOUR. GUSTS TO 57 MPH.

&&

GCLAYCOM
Local storm report, Dec 21, 2:49 AM MST, 1 hour 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
249 AM MST MON DEC 21 2015

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

0111 AM     HIGH SUST WINDS  ARLINGTON               41.59N 106.21W
12/21/2015  M43 MPH          CARBON             WY   DEPT OF HIGHWAYS

            ARLINGTON WEST WYDOT SITE. SUSTAINED 42 TO 45 MPH OVER
            PAST HOUR. GUSTS AS HIGH AS 58 MPH.

0115 AM     HIGH SUST WINDS  3 NW ARLINGTON          41.62N 106.24W
12/21/2015  M43 MPH          CARBON             WY   DEPT OF HIGHWAYS

            FOOTE CREEK WYDOT SITE. SUSTAINED WINDS 42 TO 47 MPH OVER
            PAST HOUR. GUSTS TO 59 MPH.

0120 AM     HIGH SUST WINDS  5 NW ARLINGTON          41.64N 106.29W
12/21/2015  M41 MPH          CARBON             WY   DEPT OF HIGHWAYS

            WAGONHOUND WYDOT SITE. SUSTAINED WINDS 39 TO 48 MPH OVER
            PAST HOUR. GUSTS TO 56 MPH.

0230 AM     NON-TSTM WND GST 2 E ARLINGTON           41.59N 106.18W
12/21/2015  M62 MPH          CARBON             WY   DEPT OF HIGHWAYS

            ARLINGTON EAST WYDOT SITE. SUSTAINED AT 45 MPH

0230 AM     NON-TSTM WND GST ARLINGTON               41.59N 106.21W
12/21/2015  M65 MPH          CARBON             WY   DEPT OF HIGHWAYS

            ARLINGTON WEST WYDOT SITE. SUSTAINED AT 50 MPH.

0240 AM     HIGH SUST WINDS  5 NW ARLINGTON          41.64N 106.29W
12/21/2015  M45 MPH          CARBON             WY   DEPT OF HIGHWAYS

            WAGONHOUND WYDOT SITE. SUSTAINED AT 41 TO 46 MPH PAST
            HOUR. GUSTS TO 55 MPH.

&&

GCLAYCOM
Special weather statement, Dec 21, 3:27 AM MST, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
327 AM MST MON DEC 21 2015

NEZ003-019>021-096-WYZ108-211300-
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-SOUTH SIOUX-GOSHEN COUNTY-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...BRIDGEPORT...BAYARD...AGATE...TORRINGTON
327 AM MST MON DEC 21 2015

...AREAS OF DENSE FOG EARLY THIS MORNING...

DENSE FOG IS OCCURRING IN THE PLATTE RIVER VALLEY OF EAST CENTRAL
WYOMING AND THE CENTRAL NEBRASKA PANHANDLE. MOTORISTS CAN EXPECT
OCCASIONAL VISIBILITY REDUCTIONS TO AROUND ONE QUARTER OF A MILE
THROUGH 600 AM MST. IF YOU ENCOUNTER FOG...SLOW DOWN AND USE YOUR
LOW BEAM HEADLIGHTS. BE SURE TO ALLOW PLENTY OF TIME TO REACH YOUR
DESTINATION.

HAMMER

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 21, 3:51 AM MSTHigh Wind WatchCYSAlbany, Carbon, Converse, Platte17 hr
Dec 21, 4:10 AM MSTWinter Weather AdvisoryCYSAlbany, Carbon39 hr

Nearby

Winter Storm Warnings in Wyoming, 2015Every winter storm warning in 2015

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.