Alert archive / Wyoming / Blizzard Warnings in 2020

Blizzard Warning 3, NWS Cheyenne, WY

February 3, 2020Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this blizzard warning at Feb 3, 2020, 7:59 AM MST for Albany County, Carbon County, Wyoming. It was in force for 19 hr. 7 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 3, 2020, 7:59 AM MST (14:59 UTC)
Expired
Feb 4, 2020, 2:35 AM MST
In force
19 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 15:05 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 3, 11:05 AM MSTBLIZZARD2 Ne Rawlins, WYFREQUENT GUSTS OF 35+ MPH WITH SUSTAINED WINDS NEAR 35 MPH AND VISIBILITY BELOW 1/4 MILE AT THE RAWLINS AIRPORT.
Feb 3, 2:42 PM MSTBLIZZARD15 E Sinclair, WYWYDOT 15 SENSOR REPORTED FREQUENT GUSTS OF 50-52 MPH WITH VISIBILITY NEAR 1/10TH OF A MILE FROM 11:40 AM TO 3 PM.
Feb 3, 3:42 PM MSTBLIZZARD4 Nw Elk Mountain, WYHALLECK RIDGE WYDOT SENSOR REPORTED VIS BELOW 1/4 MILE AND GUSTS OVER 60 MPH.
Feb 4, 2:00 AM MSTHEAVY SNOW 610 Nw Medicine Bow, WYUP TO 2 FOOT SNOW DRIFTS AS WELL.
Feb 4, 2:00 AM MSTHEAVY SNOW 8.11 N Rawlins, WY
Feb 4, 2:00 AM MSTHEAVY SNOW 127 E Seminoe Dam, WY
Feb 4, 2:00 AM MSTBLIZZARD1 N Rawlins, WYCOOP OBSERVER REPORTED 8.1 STORM TOTAL SNOWFALL WITH AN 11 INCH SNOW DEPTH. NEAR ZERO VISIBILITY THROUGH MOST OF THE DAY ON MONDAY INTO LAST NIGHT.

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, 3.0 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 2020-02-03Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2020-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939587897117Sfc1 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
826 m above ground
0-6 km bulk shear
96 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
575 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

617 
WWUS45 KCYS 031459
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
759 AM MST Mon Feb 3 2020

...SIGNIFICANT SNOW ACCUMULATIONS EXPECTED THROUGH TUESDAY
AFTERNOON...

WYZ110-040000-
/O.UPG.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
/O.NEW.KCYS.BZ.W.0003.200203T1459Z-200205T0000Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
759 AM MST Mon Feb 3 2020

...BLIZZARD WARNING IN EFFECT UNTIL 5 PM MST TUESDAY...

* WHAT...Blizzard conditions. Additional snow accumulations of 4 
  to 6 inches. Winds gusting as high as 55 mph.

* WHERE...North Snowy Range Foothills including Arlington and Elk
  Mountain.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow will significantly reduce visibility. The hazardous
  conditions will impact the morning or evening commute. Strong 
  winds could cause tree damage. The cold wind chills as low as 25
  below zero could cause frostbite on exposed skin in as little 
  as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ118-040000-
/O.EXT.KCYS.WS.W.0002.200203T1459Z-200205T0000Z/
Central Laramie County-
Including the city of Cheyenne
759 AM MST Mon Feb 3 2020

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

* WHAT...Periods of snow expected. Snow will be moderate to heavy
  at times. Total snow accumulations of 5 to 8 inches.

* WHERE...Central Laramie County including Cheyenne.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow
  and drifting snow will significantly reduce visibility. The 
  hazardous conditions could impact the morning and evening 
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ101-103>105-040000-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200204T1800Z/
Converse County Lower Elevations-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Including the cities of Bill, Douglas, Deer Creek, Glenrock, 
Garrett, Seminoe Dam, Medicine Bow, and Shirley Basin
759 AM MST Mon Feb 3 2020

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

* WHAT...Snow and periods of freezing drizzle expected. Snow may 
  be heavy at times through the morning hours. Total snow 
  accumulations of 6 to 10 inches in the valleys and high 
  plains, with 10 to 20 inches above 8000 feet. Winds gusting as 
  high as 35 mph.

* WHERE...Central and east central Wyoming, including Douglas, 
  Bill, Muddy Gap, and the northern Laramie Range.

* WHEN...Until 11 AM MST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Areas 
  of blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning and evening 
  commute. The cold wind chills as low as 20 below zero could 
  cause frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ102-106-107-109-116-117-040000-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
Niobrara County-Central Laramie Range and Southwest Platte County-
East Platte County-Central Carbon County-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Lusk, Redbird, Bordeaux, Wheatland, 
Guernsey, Rawlins, Buford, Pumpkin Vine, Vedauwoo, Whitaker, 
Federal, and Horse Creek
759 AM MST Mon Feb 3 2020

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

* WHAT...Snow expected. Snow may be heavy at times. Total snow
  accumulations of 5 to 10 inches. Winds gusting as high as 45 mph
  resulting in blowing and drifting snow. 

* WHERE...Southeast Wyoming along and west of a line from Lusk 
  to Chugwater to Elk Mountain and Rawlins.

* WHEN...From 5 AM Monday to 5 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute. The 
  cold wind chills as low as 25 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ095-WYZ108-114-040000-
/O.CON.KCYS.WS.W.0002.200203T1800Z-200205T0000Z/
North Sioux-Goshen County-Snowy Range-
Including the cities of Harrison, Torrington, Centennial, 
and Albany
759 AM MST Mon Feb 3 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 5 PM MST TUESDAY...

* WHAT...Snow and periods of freeze drizzle expected. Snow may 
  be heavy at times. Total snow accumulations of 6 to 10 inches 
  for the lower elevations, with 12 to 20 inches in the Snowy 
  Range.

* WHERE...Goshen County in southeast Wyoming...including 
  Torrington. Northern Sioux County in the Nebraska Panhandle... 
  including Harrison.

* WHEN...From 11 AM Monday to 5 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute. The 
  cold wind chills as low as 30 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ119-040000-
/O.EXT.KCYS.WW.Y.0010.200203T1459Z-200205T0000Z/
East Laramie County-
Including the city of Pine Bluffs
759 AM MST Mon Feb 3 2020

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

* WHAT...Snow and areas of freezing drizzle expected. Total snow 
  accumulations of 2 to 4 inches with locally higher amounts on 
  the north facing ridges.

* WHERE...Along a line from Pine Bluffs Wyoming northeast to 
  Chadron.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111>113-115-040000-
/O.CON.KCYS.WW.Y.0010.200203T1800Z-200205T0000Z/
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Laramie Valley-
Including the cities of Baggs, Saratoga, Encampment, Bosler, 
and Laramie
759 AM MST Mon Feb 3 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 AM THIS
MORNING TO 5 PM MST TUESDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 2 to 4 inches with locally higher amounts 
  along northeast facing slopes. 6 to 8 inches for the Sierra 
  Madre Range. Winds gusting as high as 40 mph.

* WHERE...Upper North Platte River Valley in southern Carbon 
  County including Saratoga, and the Laramie Valley including 
  Laramie.

* WHEN...From 11 AM Monday to 5 PM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute. The 
  cold wind chills as low as 25 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-003-019>021-054-055-096-040000-
/O.CON.KCYS.WW.Y.0010.200204T0000Z-200205T0000Z/
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
South Sioux-
Including the cities of Chadron, Chadron St Park, Alliance, 
Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, 
Redington, Kimball, Brownson, Sidney, and Agate
759 AM MST Mon Feb 3 2020

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

* WHAT...Snow and areas of freezing drizzle expected. Total snow 
  accumulations of 2 to 4 inches with locally higher amounts on 
  the north facing ridges.

* WHERE...Along a line from Pine Bluffs Wyoming northeast to 
  Chadron.

* WHEN...From 5 PM Monday to 5 PM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

Rubin
2 follow-up statements
000 
WWUS45 KCYS 032016
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
116 PM MST Mon Feb 3 2020

...SIGNIFICANT SNOW ACCUMULATIONS EXPECTED THROUGH TUESDAY
AFTERNOON...

WYZ109-041300-
/O.UPG.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
/O.NEW.KCYS.WS.W.0003.200204T1300Z-200204T1800Z/
/O.EXB.KCYS.BZ.W.0003.000000T0000Z-200204T1300Z/
Central Carbon County-
Including the city of Rawlins
116 PM MST Mon Feb 3 2020

...BLIZZARD WARNING IN EFFECT UNTIL 6 AM MST TUESDAY...
...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 11 AM MST
TUESDAY...

* WHAT...Blizzard conditions through tonight. Snow, heavy at
  times. Total snowfall accumulations of 5 to 9 inches. Winds
  gusting up to 55 mph.
 
* WHERE...Central Carbon County. 

* WHEN...For the Winter Storm Warning, from 6 AM to 11 AM MST 
  Tuesday. For the Blizzard Warning, until 6 AM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage. The cold wind chills as low as 
  20 below zero could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ110-041300-
/O.EXB.KCYS.WS.W.0002.200204T1300Z-200204T1800Z/
/O.EXT.KCYS.BZ.W.0003.000000T0000Z-200204T1300Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
116 PM MST Mon Feb 3 2020

...BLIZZARD WARNING NOW IN EFFECT UNTIL 6 AM MST TUESDAY...
...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 11 AM MST
TUESDAY...

* WHAT...Blizzard conditions through tonight. Snow, heavy at
  times. Total snowfall accumulations of 5 to 9 inches. Winds
  gusting up to 55 mph.

* WHERE...North Snowy Range Foothills.

* WHEN...For the Winter Storm Warning, from 6 AM to 11 AM MST 
  Tuesday. For the Blizzard Warning, until 6 AM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow will significantly reduce visibility. The hazardous 
  conditions will impact the morning or evening commute. Strong 
  winds could cause tree damage. The cold wind chills as low as 
  25 below zero could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ101-103>105-041300-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200204T1800Z/
Converse County Lower Elevations-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Including the cities of Bill, Douglas, Deer Creek, Glenrock, 
Garrett, Seminoe Dam, Medicine Bow, and Shirley Basin
116 PM MST Mon Feb 3 2020

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

* WHAT...Snow. Snow may be heavy at times. Total snow 
  accumulations of 6 to 10 inches in the valleys and high plains, 
  with 10 to 20 inches above 8000 feet. Winds gusting as high as 
  35 mph.

* WHERE...Central and east central Wyoming, including Douglas, 
  Bill, Muddy Gap, and the northern Laramie Range.

* WHEN...Until 11 AM MST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Areas 
  of blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning and evening 
  commute. The cold wind chills as low as 20 below zero could 
  cause frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ102-106-107-116-117-041300-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
Niobrara County-Central Laramie Range and Southwest Platte County-
East Platte County-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Lusk, Redbird, Bordeaux, Wheatland, 
Guernsey, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
116 PM MST Mon Feb 3 2020

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

* WHAT...Snow expected. Snow may be heavy at times. Total snow 
  accumulations of 5 to 10 inches. Winds gusting as high as 45 
  mph resulting in blowing and drifting snow.

* WHERE...Southeast Wyoming along and west of a line from Lusk 
  to Chugwater to Elk Mountain and Rawlins.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute. The 
  cold wind chills as low as 25 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ095-WYZ108-114-041300-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
North Sioux-Goshen County-Snowy Range-
Including the cities of Harrison, Torrington, Centennial, 
and Albany
116 PM MST Mon Feb 3 2020

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

* WHAT...Snow. Snow may be heavy at times. Total snow  
  accumulations of 6 to 10 inches for the lower elevations, with 
  12 to 20 inches in the Snowy Range.

* WHERE...Goshen County in southeast Wyoming...including 
  Torrington. Northern Sioux County in the Nebraska Panhandle... 
  including Harrison.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute. The 
  cold wind chills as low as 30 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ118-041300-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
Central Laramie County-
Including the city of Cheyenne
116 PM MST Mon Feb 3 2020

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

* WHAT...Periods of snow expected. Snow will be moderate to 
  heavy at times. Total snow accumulations of 5 to 8 inches.

* WHERE...Central Laramie County including Cheyenne.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  and drifting snow will significantly reduce visibility. The 
  hazardous conditions could impact the morning and evening 
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ119-041300-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
East Laramie County-
Including the city of Pine Bluffs
116 PM MST Mon Feb 3 2020

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

* WHAT...Snow. Total snow accumulations of 2 to 4 inches with 
  locally higher amounts on the north facing ridges.

* WHERE...East Laramie County.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111>113-115-041300-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Laramie Valley-
Including the cities of Baggs, Saratoga, Encampment, Bosler, 
and Laramie
116 PM MST Mon Feb 3 2020

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

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 2 to 4 inches with locally higher amounts 
  along northeast facing slopes. 6 to 8 inches for the Sierra 
  Madre Range. Winds gusting as high as 40 mph.

* WHERE...Upper North Platte River Valley in southern Carbon 
  County including Saratoga, and the Laramie Valley including 
  Laramie.

* WHEN...Until 5 PM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute. The 
  cold wind chills as low as 25 below zero could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-003-019>021-054-055-096-041300-
/O.CON.KCYS.WW.Y.0010.200204T0000Z-200205T0000Z/
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
South Sioux-
Including the cities of Chadron, Chadron St Park, Alliance, 
Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, 
Redington, Kimball, Brownson, Sidney, and Agate
116 PM MST Mon Feb 3 2020

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

* WHAT...Snow. Total snow accumulations of 2 to 4 inches with 
  locally higher amounts on the north facing ridges.

* WHERE...Along a line from Pine Bluffs Wyoming northeast to 
  Chadron.

* WHEN...From 5 PM today to 5 PM MST Tuesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning and evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

Rubin
265 
WWUS45 KCYS 040935
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
235 AM MST Tue Feb 4 2020

...PERIODS OF SNOW WILL CONTINUE TO RESULT IN HAZARDOUS TRAVEL
CONDITIONS THIS MORNING... 

WYZ109-050000-
/O.CAN.KCYS.BZ.W.0003.000000T0000Z-200204T1300Z/
/O.CAN.KCYS.WS.W.0003.200204T1300Z-200204T1800Z/
/O.EXA.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
Central Carbon County-
Including the city of Rawlins
235 AM MST Tue Feb 4 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...BLIZZARD WARNING IS CANCELLED...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow ending early. Additional accumulations less than one
  inch expected. Periods of blowing snow likely through the day.
  Wind gusts up to 40 MPH. 

* WHERE...Central Carbon County including the city of Rawlins. 

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ110-050000-
/O.CAN.KCYS.BZ.W.0003.000000T0000Z-200204T1300Z/
/O.CAN.KCYS.WS.W.0002.200204T1300Z-200204T1800Z/
/O.EXA.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
235 AM MST Tue Feb 4 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...BLIZZARD WARNING IS CANCELLED...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow ending early. Additional accumulations less than one
  inch expected. Periods of blowing snow likely through the day.
  Wind gusts up to 40 MPH. 

* WHERE...Interstate 80 Corridor between Laramie and Rawlins,
  including Arlington and Elk Mountain. 

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ101-103>105-050000-
/O.CAN.KCYS.WS.W.0002.000000T0000Z-200204T1800Z/
/O.EXA.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
Converse County Lower Elevations-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Including the cities of Bill, Douglas, Deer Creek, Glenrock, 
Garrett, Seminoe Dam, Medicine Bow, and Shirley Basin
235 AM MST Tue Feb 4 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Periods of snow. Additional accumulations less than one
  inch expected. 

* WHERE...Northern Carbon County and much of Converse County. 

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ095-WYZ102-050000-
/O.CAN.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
/O.EXA.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
North Sioux-Niobrara County-
Including the cities of Harrison, Lusk, and Redbird
235 AM MST Tue Feb 4 2020

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Periods of snow. Additional accumulations less than one
  inch expected. 

* WHERE...Niobrara County including the city of Lusk. 

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ106>108-116>118-050000-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-South Laramie Range-
South Laramie Range Foothills-Central Laramie County-
Including the cities of Bordeaux, Wheatland, Guernsey, 
Torrington, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
Horse Creek, and Cheyenne
235 AM MST Tue Feb 4 2020

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

* WHAT...Periods of snow. Additional accumulations of 1 to 2
  inches possible. 

* WHERE...Interstate 80 Summit and adjacent Foothills, central
  Laramie County including the city of Cheyenne, and mainly
  southern portions of Platte and Goshen Counties. 

* WHEN...Until 5 PM MST this afternoon. 

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ114-050000-
/O.CON.KCYS.WS.W.0002.000000T0000Z-200205T0000Z/
Snowy Range-
Including the cities of Centennial and Albany
235 AM MST Tue Feb 4 2020

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

* WHAT...Periods of snow. Additional accumulations of 1 to 2
  inches possible. 

* WHERE...Snowy Mountain Range. 

* WHEN...Until 5 PM MST this afternoon. 

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111>113-115-050000-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Laramie Valley-
Including the cities of Baggs, Saratoga, Encampment, Bosler, 
and Laramie
235 AM MST Tue Feb 4 2020

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

* WHAT...Periods of snow. Additional accumulations less than one
  inch expected. 

* WHERE...Upper North Platte River Valley in southern Carbon 
  County including Saratoga, and the Laramie Valley including 
  Laramie.

* WHEN...Until 5 PM MST this afternoon. 

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-003-019>021-054-055-096-WYZ119-050000-
/O.CON.KCYS.WW.Y.0010.000000T0000Z-200205T0000Z/
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
South Sioux-East Laramie County-
Including the cities of Chadron, Chadron St Park, Alliance, 
Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, 
Redington, Kimball, Brownson, Sidney, Agate, and Pine Bluffs
235 AM MST Tue Feb 4 2020

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

* WHAT...Periods of snow. Additional accumulations less than one
  inch expected. 

* WHERE...Western Nebraska Panhandle. 

* WHEN...Until 5 PM MST this afternoon. 

* IMPACTS...Travel will be hazardous due to icy and snow packed
  roads and periods of low visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CLH

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 1:16 PM MSTWinter Storm WarningCYSCarbon13 hr

Nearby

Blizzard Warnings in Wyoming, 2020Every blizzard warning in 2020

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.