Alert archive / Wyoming / Winter Storm Warnings in 2021
Winter Storm Warning 15, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at May 9, 2021, 1:28 PM MDT for Albany County, Carbon County, Laramie County, Wyoming. It took effect at May 10, 2021, 12:00 AM MDT. It was in force for 36 hr. 32 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
- May 9, 2021, 1:28 PM MDT (19:28 UTC)
- In effect from
- May 10, 2021, 12:00 AM MDT
- Expired
- May 11, 2021, 12:00 PM MDT
- In force
- 36 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Laramie County, WY
The radar
The Cheyenne radar (KCYS), 93 km from the middle of the area, began a volume at 19:33 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 6:00 AM MDT | SNOW 2 | 1 Se Cheyenne, WY | |
| May 10, 8:00 AM MDT | SNOW 2 | 7 Ne Cheyenne, WY | LIQUID EQUIVALENT 0.35 |
| May 10, 8:13 AM MDT | SNOW 3 | 7 W Warren Af Base, WY | |
| May 10, 9:00 AM MDT | SNOW 1.5 | 1 Sse Federal, WY | |
| May 10, 9:10 AM MDT | SNOW 1.6 | 1 Se Laramie, WY | |
| May 10, 9:55 AM MDT | SNOW 2.5 | Ne Laramie, WY | |
| May 10, 1:00 PM MDT | SNOW 5.5 | 12 Sse Horse Creek, WY | SINCE THIS MORNING. |
| May 11, 5:00 AM MDT | HEAVY SNOW 6.1 | 1 Wnw Cheyenne, WY | CO-OP OBSERVER STATION CYSW4 CHEYENNE WFO. THE PERIOD OF THE HEAVY SNOW EVENT WAS 48 HOURS. |
| May 11, 5:30 AM MDT | SNOW 3.3 | 1 Ne North Cheyenne, WY | COCORAHS STATION WY-LM-139 CHEYENNE 6.0 N. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 5:56 AM MDT | SNOW 3.5 | 3 S South Greeley High, WY | COCORAHS STATION WY-LM-222 CHEYENNE 6.0 S. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 6:00 AM MDT | SNOW 4.5 | 2 Ene Cheyenne, WY | COCORAHS STATION WY-LM-82 CHEYENNE 2.0 ENE. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 6:00 AM MDT | HEAVY SNOW 6.1 | 1 Nw Cheyenne, WY | COCORAHS STATION WY-LM-115 CHEYENNE 0.8 NW. THE PERIOD OF THE HEAVY SNOW EVENT WAS 48 HOURS. |
| May 11, 6:30 AM MDT | HEAVY SNOW 6.5 | 7 W Warren Af Base, WY | 2 DAY STORM TOTAL SNOWFALL. 0.55 INCHES LIQUID OVER 2 DAYS. |
| May 11, 6:30 AM MDT | HEAVY SNOW 6.5 | 7 W Warren Af Base, WY | CORRECTS PREVIOUS HEAVY SNOW REPORT FROM 7 W WARREN AF BASE. 2 DAY STORM TOTAL SNOWFALL. 0.55 INCHES LIQUID OVER 2 DAYS. THE PERIOD OF THE HEAVY SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 0.6 | 6 Sse Laramie, WY | COCORAHS STATION WY-AB-160 LARAMIE 6.1 SSE. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 1 | 5 N Carpenter, WY | COCORAHS STATION WY-LM-63 CARPENTER 3.9 NNE. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 1.2 | 1 Nw Centennial, WY | COCORAHS STATION WY-AB-108 CENTENNIAL 1.1 NNE. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 1.5 | 2 Ese Laramie, WY | COCORAHS STATION WY-AB-171 LARAMIE 2.5 ESE. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 2.3 | 1 Sse Laramie, WY | COCORAHS STATION WY-AB-5 LARAMIE 1.3 SE. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 2.3 | 1 Sse Laramie, WY | CO-OP OBSERVER STATION ADFW4 LARAMIE 1 SE. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 4 | 1 W Cheyenne, WY | COCORAHS STATION WY-LM-190 CHEYENNE 1.4 W. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | SNOW 5.5 | 7 Wsw Hillsdale, WY | COCORAHS STATION WY-LM-106 CHEYENNE 9.9 E. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:00 AM MDT | HEAVY SNOW 7 | 2 E Cheyenne, WY | COCORAHS STATION WY-LM-36 CHEYENNE 2.0 E. THE PERIOD OF THE HEAVY SNOW EVENT WAS 48 HOURS. |
| May 11, 7:30 AM MDT | SNOW 0.5 | 3 N Saratoga, WY | CO-OP OBSERVER STATION SFHW4 3.4 N SARATOGA. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 7:38 AM MDT | SNOW 5 | 3 Ssw North Cheyenne, WY | COCORAHS STATION WY-LM-131 CHEYENNE 3.0 NNW. THE PERIOD OF THE SNOW EVENT WAS 48 HOURS. |
| May 11, 8:00 AM MDT | HEAVY SNOW 6.5 | 3 Ne Cheyenne, WY | COCORAHS STATION WY-LM-193 CHEYENNE 2.6 NE. THE PERIOD OF THE HEAVY SNOW EVENT WAS 48 HOURS. |
| May 11, 8:00 AM MDT | HEAVY SNOW 8.9 | 1 Ese Warren Af Base, WY | COCORAHS STATION WY-LM-93 CHEYENNE 2.3 W. THE PERIOD OF THE HEAVY SNOW EVENT WAS 48 HOURS. |
| May 11, 8:30 AM MDT | HEAVY SNOW 7.5 | 2 Nne Cheyenne, WY | COCORAHS STATION WY-LM-111 CHEYENNE 2.2 NNE. THE PERIOD OF THE HEAVY SNOW EVENT WAS 48 HOURS. |
| May 11, 8:30 AM MDT | HEAVY SNOW 7.5 | 2 Nne Cheyenne, WY | CORRECTED TIME OF EVENT |
| May 11, 8:30 AM MDT | HEAVY SNOW 7.5 | 2 Nne Cheyenne, WY | CORRECTS PREVIOUS REPORT FROM 2 NNE CHEYENNE. CORRECTED TIME OF OCCURRENCE. |
| May 11, 9:51 AM MDT | HEAVY SNOW 6 | Curt Gowdy State Park, WY | . |
| May 11, 9:51 AM MDT | HEAVY SNOW 6 | Curt Gowdy State Park, WY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 7.5 hours before the alert went out and 274 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1991 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
955 WWUS45 KCYS 091928 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 128 PM MDT Sun May 9 2021 ...ACCUMULATING SNOW WITH TRAVEL IMPACTS FOR PORTIONS OF SOUTHEAST WYOMING LATE TONIGHT THROUGH TUESDAY MORNING... WYZ116-117-101200- /O.UPG.KCYS.WS.A.0009.210510T0600Z-210511T1500Z/ /O.NEW.KCYS.WS.W.0015.210510T0600Z-210511T1800Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 128 PM MDT Sun May 9 2021 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 inches. * WHERE...South Laramie Range and Foothills. This includes the Interstate 80 Summit, Buford, Federal, Horse Creek and Vedauwoo. * WHEN...From Midnight tonight to Noon MDT Tuesday. * IMPACTS...Travel could be very difficult. 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. && $$ WYZ103-106-110-114-118-101200- /O.NEW.KCYS.WW.Y.0033.210510T0600Z-210511T1800Z/ North Laramie Range- Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-Snowy Range-Central Laramie County- Including the cities of Garrett, Esterbrook, Bordeaux, Arlington, Elk Mountain, Centennial, Albany, and Cheyenne 128 PM MDT Sun May 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT TUESDAY... * WHAT...Snow expected. Total snow accumulations 3 to 6 inches between 6000 and 7000 feet, with 6 to 12 inches above 7000 feet. * WHERE...Central Laramie Range and Southwest Platte County, North Snowy Range Foothills, Snowy Range and Central Laramie County. This includes Arlington, Bordeaux, Centennial, Elk Mountain, and Cheyenne. * WHEN...From Midnight tonight to Noon MDT Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
5 follow-up statements
179 WWUS45 KCYS 100934 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 334 AM MDT Mon May 10 2021 ...MODERATE TO HEAVY SNOW EXPECTED TO IMPACT TRAVEL ACROSS PORTIONS OF SOUTHEAST WYOMING TODAY THROUGH TUESDAY... WYZ114-110000- /O.UPG.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ /O.EXA.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ Snowy Range- Including the cities of Centennial and Albany 334 AM MDT Mon May 10 2021 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Heavy mountain snow. Total snow accumulations of 8 to 16 inches expected. * WHERE...Snowy Mountain Range. * WHEN...Until noon MDT Tuesday. * IMPACTS...Mountain travel will be extremely dangerous or impossible due to icy, snow packed roads and very low visibility in falling snow. Outdoor recreation will be hazardous to those caught unprepared for severe winter conditions. 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. && $$ WYZ118-110000- /O.UPG.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ /O.EXA.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ Central Laramie County- Including the city of Cheyenne 334 AM MDT Mon May 10 2021 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Heavy snow. Total snow accumulations of 6 to 12 inches expected. Locally higher amounts are possible in snow bands. Highest accumulations on grassy or elevated surfaces. * WHERE...Central Laramie County including the city of Cheyenne. * WHEN...Until noon MDT Tuesday. * IMPACTS...Travel will be hazardous due to icy, snow covered roads and low visibility in falling snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ116-117-110000- /O.CON.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 334 AM MDT Mon May 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches expected. * WHERE...South Laramie Range and Foothills. This includes the Interstate 80 Summit, Buford, Federal, Horse Creek and Vedauwoo. * WHEN...Until noon MDT Tuesday. * IMPACTS...Travel will be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ119-110000- /O.EXA.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Laramie County- Including the city of Pine Bluffs 334 AM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Total snow accumulations of 3 to 6 inches expected. * WHERE...Eastern Laramie County including Pine Bluffs. * WHEN...Until noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ103-106-110000- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Laramie Range- Central Laramie Range and Southwest Platte County- Including the cities of Garrett, Esterbrook, and Bordeaux 334 AM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow expected. Total snow accumulations 3 to 6 inches between 5000 and 7000 feet, with 6 to 12 inches above 7000 feet. * WHERE...Central and Northern Laramie Range including Bordeaux and Esterbrook. * WHEN...Until noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ110-110000- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 334 AM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Total snow accumulations of 3 to 6 inches expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ CLH
287 WWUS45 KCYS 101612 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 1012 AM MDT Mon May 10 2021 ...MODERATE TO HEAVY SNOW EXPECTED TO IMPACT TRAVEL ACROSS PORTIONS OF SOUTHEAST WYOMING TODAY THROUGH TUESDAY... WYZ116>118-110000- /O.CON.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ South Laramie Range-South Laramie Range Foothills- Central Laramie County- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 1012 AM MDT Mon May 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Heavy snow. Total snow accumulations of 5 to 10 inches. * WHERE...South Laramie Range and Foothills. This includes the Interstate 80 Summit, Buford, Federal, Horse Creek and Vedauwoo. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel will be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ114-110000- /O.CON.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ Snowy Range- Including the cities of Centennial and Albany 1012 AM MDT Mon May 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Heavy mountain snow. Total snow accumulations of 8 to 16 inches. * WHERE...Snowy Mountain Range. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Mountain travel will be extremely dangerous or impossible due to icy, snow packed roads and very low visibility in falling snow. Outdoor recreation will be hazardous to those caught unprepared for severe winter conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ107-115-110000- /O.EXA.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Platte County-Laramie Valley- Including the cities of Wheatland, Guernsey, Laramie, and Bosler 1012 AM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Total snow accumulations of 3 to 5 inches. * WHERE...East Platte County and Laramie Valley. This includes Guernsey, Laramie and Wheatland. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ119-110000- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Laramie County- Including the city of Pine Bluffs 1012 AM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Total snow accumulations of 3 to 6 inches. * WHERE...Eastern Laramie County including Pine Bluffs. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ103-106-110000- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Laramie Range- Central Laramie Range and Southwest Platte County- Including the cities of Garrett, Esterbrook, and Bordeaux 1012 AM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Total snow accumulations 3 to 6 inches between 5000 and 7000 feet, with 6 to 12 inches above 7000 feet. * WHERE...Central and Northern Laramie Range including Bordeaux and Esterbrook. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ110-110000- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1012 AM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Total snow accumulations of 3 to 6 inches. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
288 WWUS45 KCYS 101944 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 144 PM MDT Mon May 10 2021 ...MODERATE TO HEAVY SNOW EXPECTED TO IMPACT TRAVEL ACROSS PORTIONS OF SOUTHEAST WYOMING TODAY THROUGH TUESDAY... WYZ116>118-111200- /O.CON.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ South Laramie Range-South Laramie Range Foothills- Central Laramie County- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 144 PM MDT Mon May 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Additional snow accumulations of 2 to 4 inches. Total snow accumulations of 5 to 10 inches. * WHERE...South Laramie Range and Foothills. This includes the Interstate 80 Summit, Buford, Federal, Horse Creek and Vedauwoo. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel will be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ114-111200- /O.CON.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ Snowy Range- Including the cities of Centennial and Albany 144 PM MDT Mon May 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Heavy snow. Additional snow accumulations of up to 7 inches. Total snow accumulations of 8 to 14 inches. * WHERE...Snowy Mountain Range. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Mountain travel will be extremely dangerous or impossible due to icy, snow packed roads and very low visibility in falling snow. Outdoor recreation will be hazardous to those caught unprepared for severe winter conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ119-111200- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Laramie County- Including the city of Pine Bluffs 144 PM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Additional snow accumulations of up to two inches. Total snow accumulations of 3 to 5 inches. * WHERE...Eastern Laramie County including Pine Bluffs. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ103-106-111200- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Laramie Range- Central Laramie Range and Southwest Platte County- Including the cities of Garrett, Esterbrook, and Bordeaux 144 PM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Additional snow accumulations of up to 5 inches. Total snow accumulations of 6 to 10 inches. * WHERE...Central and Northern Laramie Range including Bordeaux and Esterbrook. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-111200- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 144 PM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Additional snow accumulations of up to 3 inches. Total snow accumulations of 3 to 6 inches. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. 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. && $$ WYZ107-115-111200- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Platte County-Laramie Valley- Including the cities of Wheatland, Guernsey, Laramie, and Bosler 144 PM MDT Mon May 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TUESDAY... * WHAT...Snow. Additional snow accumulations of up to two inches. Total snow accumulations of 3 to 5 inches. * WHERE...East Platte County and Laramie Valley. This includes Guernsey, Laramie and Wheatland. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel could be hazardous due to icy, snow covered roads and low visibility in falling snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
327 WWUS45 KCYS 110858 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 258 AM MDT Tue May 11 2021 ...PERIODS OF SNOW TO CONTINUE THIS MORNING... WYZ116>118-111800- /O.CON.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ South Laramie Range-South Laramie Range Foothills- Central Laramie County- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 258 AM MDT Tue May 11 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Snow. Additional snow accumulations of 1 to 2 inches. Total snow accumulations of 5 to 10 inches. * WHERE...South Laramie Range and Foothills. This includes the Interstate 80 Summit, Buford, Federal, Horse Creek and Vedauwoo. * WHEN...Until Noon MDT today. * IMPACTS...Travel will be hazardous due to slick roads and reduced visibilities. 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. && $$ WYZ114-111800- /O.CON.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ Snowy Range- Including the cities of Centennial and Albany 258 AM MDT Tue May 11 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Snow. Additional snow accumulations of 2 to 4 inches above 9000 feet. Total snow accumulations of 8 to 16 inches. * WHERE...Snowy Mountain Range. * WHEN...Until Noon MDT today.. * IMPACTS...Mountain travel will be dangerous or impossible due to icy, snow packed roads and low visibility in falling snow. Outdoor recreation will be hazardous to those caught unprepared for severe winter conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ119-111800- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Laramie County- Including the city of Pine Bluffs 258 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Snow. Additional snow accumulations around one inch expected. Total snow accumulations of 3 to 5 inches. * WHERE...Eastern Laramie County including Pine Bluffs. * WHEN...Until Noon MDT today. * IMPACTS...Travel will be hazardous due to slick roads and reduced visibilities. 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. && $$ WYZ103-106-111800- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Laramie Range- Central Laramie Range and Southwest Platte County- Including the cities of Garrett, Esterbrook, and Bordeaux 258 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches. Total snow accumulations of 6 to 10 inches. * WHERE...Central and Northern Laramie Range including Bordeaux and Esterbrook. * WHEN...Until Noon MDT today. * IMPACTS...Travel will be hazardous due to slick roads and reduced visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-111800- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 258 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Snow. Additional snow accumulations of up to 1 inch. Total snow accumulations of 3 to 6 inches. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until Noon MDT today. * IMPACTS...Travel will be hazardous due to slick roads and reduced visibilities. 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. && $$ WYZ107-115-111800- /O.CON.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Platte County-Laramie Valley- Including the cities of Wheatland, Guernsey, Laramie, and Bosler 258 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * WHAT...Snow. Additional snow accumulations less than one inch. * WHERE...East Platte County and Laramie Valley. This includes Guernsey, Laramie and Wheatland. * WHEN...Until Noon MDT Tuesday. * IMPACTS...Travel will be hazardous due to slick roads and reduced visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ CLH
415 WWUS45 KCYS 111752 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 1152 AM MDT Tue May 11 2021 ...SNOW SHOWERS DIMINISHING THIS EVENING.. WYZ116>118-111900- /O.EXP.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ South Laramie Range-South Laramie Range Foothills- Central Laramie County- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 1152 AM MDT Tue May 11 2021 ...WINTER STORM WARNING WILL EXPIRE AT NOON MDT TODAY... Occasional snow showers will continue this afternoon. Little or no additional accumulation is expected. $$ WYZ114-111900- /O.EXP.KCYS.WS.W.0015.000000T0000Z-210511T1800Z/ Snowy Range- Including the cities of Centennial and Albany 1152 AM MDT Tue May 11 2021 ...WINTER STORM WARNING WILL EXPIRE AT NOON MDT TODAY... Occasional snow showers will continue this afternoon. Little or no additional accumulation is expected. $$ WYZ119-111900- /O.EXP.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Laramie County- Including the city of Pine Bluffs 1152 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MDT TODAY... Occasional snow showers will continue this afternoon. Little or no additional accumulation is expected. $$ WYZ103-106-111900- /O.EXP.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Laramie Range- Central Laramie Range and Southwest Platte County- Including the cities of Garrett, Esterbrook, and Bordeaux 1152 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MDT TODAY... Occasional snow showers will continue this afternoon. Little or no additional accumulation is expected. $$ WYZ110-111900- /O.EXP.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1152 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MDT TODAY... Occasional snow showers will continue this afternoon. Little or no additional accumulation is expected. $$ WYZ107-115-111900- /O.EXP.KCYS.WW.Y.0033.000000T0000Z-210511T1800Z/ East Platte County-Laramie Valley- Including the cities of Wheatland, Guernsey, Laramie, and Bosler 1152 AM MDT Tue May 11 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MDT TODAY... Occasional snow showers will continue this afternoon. Little or no additional accumulation is expected. $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 1:28 PM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Converse, Laramie, Platte | 47 hr |
Nearby
Winter Storm Warnings in Wyoming, 2021Every winter storm warning in 2021
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.