Alert archive / Wyoming / Winter Storm Warnings in 2020
Winter Storm Warning 10, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at Mar 17, 2020, 4:20 AM MDT for Albany County, Carbon County, Wyoming. It took effect at Mar 18, 2020, 6:00 PM MDT. It was in force for 20 hr. 2 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
- Mar 17, 2020, 4:20 AM MDT (10:20 UTC)
- In effect from
- Mar 18, 2020, 6:00 PM MDT
- Expired
- Mar 19, 2020, 2:12 PM MDT
- In force
- 20 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 10:18 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 |
|---|---|---|---|
| Mar 19, 7:00 AM MDT | SNOW 0.9 | 1.1 Nne Centennial, WY | |
| Mar 19, 8:00 AM MDT | SNOW 0.9 | 1 Nw Centennial, WY | COCORAHS STATION WY-AB-108 CENTENNIAL 1.1 NNE. |
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, 10.3 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1199 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
137 WWUS45 KCYS 171020 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 420 AM MDT Tue Mar 17 2020 ...MAJOR WINTER STORM TO BRING WIDESPREAD SNOW...WIND...AND TRAVEL IMPACTS TO SOUTHEAST WYOMING AND NEBRASKA PANHANDLE BEGINNING WEDNESDAY AFTERNOON THROUGH FRIDAY... NEZ002-003-019>021-054-055-095-096-201200- /O.UPG.KCYS.WS.A.0008.200319T0600Z-200320T1200Z/ /O.NEW.KCYS.WW.Y.0020.200319T0300Z-200319T1600Z/ /O.NEW.KCYS.BZ.W.0007.200319T1600Z-200320T1200Z/ Dawes-Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-North Sioux-South Sioux- Including the cities of Chadron, Chadron St Park, Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Harrison, and Agate 420 AM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM WEDNESDAY TO 10 AM MDT THURSDAY... ...BLIZZARD WARNING IN EFFECT FROM 10 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations of 4 to 6 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of up to two inches and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Entire western Nebraska Panhandle...including Harrison...Chadron...Alliance...Scottsbluff...Kimball and Sidney. * WHEN...For the Blizzard Warning, from 10 AM Thursday to 6 AM MDT Friday. For the Winter Weather Advisory, from 9 PM Wednesday to 10 AM MDT Thursday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. 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. && $$ WYZ101-102-107-108-117>119-201200- /O.UPG.KCYS.WS.A.0008.200319T0300Z-200320T1200Z/ /O.NEW.KCYS.WW.Y.0020.200319T0300Z-200319T1600Z/ /O.NEW.KCYS.BZ.W.0007.200319T1600Z-200320T1200Z/ Converse County Lower Elevations-Niobrara County- East Platte County-Goshen County-South Laramie Range Foothills- Central Laramie County-East Laramie County- Including the cities of Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, Guernsey, Torrington, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 420 AM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM WEDNESDAY TO 10 AM MDT THURSDAY... ...BLIZZARD WARNING IN EFFECT FROM 10 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations of 2 to 6 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of 1 to 3 inches and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...East Platte...Converse...Niobrara...Goshen...central and eastern Laramie Counties including Douglas...Lusk... Wheatland...Torrington...Cheyenne and Pine Bluffs. * WHEN...For the Blizzard Warning, from 10 AM Thursday to 6 AM MDT Friday. For the Winter Weather Advisory, from 9 PM Wednesday to 10 AM MDT Thursday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-116-201200- /O.UPG.KCYS.WS.A.0008.200319T0000Z-200320T1200Z/ /O.NEW.KCYS.WW.Y.0020.200319T0300Z-200319T0900Z/ /O.NEW.KCYS.BZ.W.0007.200319T0900Z-200320T1200Z/ North Snowy Range Foothills-South Laramie Range- Including the cities of Arlington, Elk Mountain, Buford, Pumpkin Vine, and Vedauwoo 420 AM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM WEDNESDAY TO 3 AM MDT THURSDAY... ...BLIZZARD WARNING IN EFFECT FROM 3 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations of 4 to 9 inches and ice accumulations of around one tenth of an inch. Winds gusting as high as 50 mph. For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. * WHERE...Snowy Range Foothills near Arlington and Elk Mountain and the I-80 Summit between Vedauwoo and Buford. * WHEN...For the Blizzard Warning, from 3 AM Thursday to 6 AM MDT Friday. For the Winter Weather Advisory, from 9 PM Wednesday to 3 AM MDT Thursday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. 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. && $$ WYZ114-210000- /O.UPG.KCYS.WS.A.0008.200318T2100Z-200320T1200Z/ /O.NEW.KCYS.WS.W.0010.200319T0000Z-200321T0000Z/ Snowy Range- Including the cities of Centennial and Albany 420 AM MDT Tue Mar 17 2020 ...WINTER STORM WARNING IN EFFECT FROM 6 PM WEDNESDAY TO 6 PM MDT FRIDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 6 to 16 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Snowy Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ112-210000- /O.UPG.KCYS.WS.A.0008.200318T2100Z-200320T1200Z/ /O.NEW.KCYS.WW.Y.0020.200319T0000Z-200321T0000Z/ Sierra Madre Range- 420 AM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM WEDNESDAY TO 6 PM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 5 to 10 inches and ice accumulations of a light glaze. * WHERE...Sierra Madre Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing 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. && $$ WYZ103>106-109-115-201200- /O.UPG.KCYS.WS.A.0008.200319T0000Z-200320T1200Z/ /O.NEW.KCYS.WW.Y.0020.200319T0300Z-200320T1200Z/ North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- Central Carbon County-Laramie Valley- Including the cities of Garrett, Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Rawlins, Bosler, and Laramie 420 AM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM WEDNESDAY TO 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 6 inches and ice accumulations of a light glaze. Isolated areas of up to 8 inches. Winds gusting as high as 30 mph at times. * WHERE...Carbon...Albany...Southwest Platte...and the North Laramie Range...including Rawlins...Laramie...and Medicine Bow. * WHEN...From 9 PM Wednesday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ111-201200- /O.NEW.KCYS.WW.Y.0020.200319T0300Z-200320T1200Z/ Southwest Carbon County- Including the city of Baggs 420 AM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM WEDNESDAY TO 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 2 to 4 inches and ice accumulations of a light glaze. Winds gusting as high as 30 mph. * WHERE...Southwest Carbon County...including the cities of Baggs and Dixon. * WHEN...From 9 PM Wednesday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or 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. && $$ Braun
6 follow-up statements
953 WWUS45 KCYS 172022 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 222 PM MDT Tue Mar 17 2020 ...MAJOR WINTER STORM TO BRING WIDESPREAD SNOW...WIND...AND TRAVEL IMPACTS TO SOUTHEAST WYOMING AND NEBRASKA PANHANDLE BEGINNING WEDNESDAY AFTERNOON THROUGH FRIDAY... NEZ002-003-019>021-054-055-095-096-WYZ101-102-107-108-117>119- 181200- /O.CON.KCYS.BZ.W.0007.200319T1600Z-200320T1200Z/ /O.CON.KCYS.WW.Y.0020.200319T0300Z-200319T1600Z/ Dawes-Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County-Goshen County-South Laramie Range Foothills- Central Laramie County-East Laramie County- Including the cities of Chadron, Chadron St Park, Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, Guernsey, Torrington, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 222 PM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM WEDNESDAY TO 10 AM MDT THURSDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 10 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations of 5 to 8 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of up to two inches and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Entire western Nebraska Panhandle...including Harrison...Chadron...Alliance...Scottsbluff...Kimball and Sidney. * WHEN...For the Blizzard Warning, from 10 AM Thursday to 6 AM MDT Friday. For the Winter Weather Advisory, from 9 PM Wednesday to 10 AM MDT Thursday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. 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. && $$ WYZ110-116-181200- /O.CON.KCYS.BZ.W.0007.200319T0900Z-200320T1200Z/ /O.CON.KCYS.WW.Y.0020.200319T0300Z-200319T0900Z/ North Snowy Range Foothills-South Laramie Range- Including the cities of Arlington, Elk Mountain, Buford, Pumpkin Vine, and Vedauwoo 222 PM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM WEDNESDAY TO 3 AM MDT THURSDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations of 4 to 9 inches and ice accumulations of around one tenth of an inch. Winds gusting as high as 50 mph. For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. * WHERE...Snowy Range Foothills near Arlington and Elk Mountain and the I-80 Summit between Vedauwoo and Buford. * WHEN...For the Blizzard Warning, from 3 AM Thursday to 6 AM MDT Friday. For the Winter Weather Advisory, from 9 PM Wednesday to 3 AM MDT Thursday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. 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. && $$ WYZ114-181200- /O.CON.KCYS.WS.W.0010.200319T0000Z-200321T0000Z/ Snowy Range- Including the cities of Centennial and Albany 222 PM MDT Tue Mar 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 6 PM MDT FRIDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 12 to 18 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Snowy Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ113-181200- /O.EXA.KCYS.WW.Y.0020.200319T0300Z-200320T1200Z/ Upper North Platte River Basin- Including the cities of Saratoga and Encampment 222 PM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM WEDNESDAY TO 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 5 inches and ice accumulations of a light glaze. * WHERE...Upper North Platte River Basin...including Saratoga and Encampment. * WHEN...From 9 PM Wednesday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or 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. && $$ WYZ112-181200- /O.CON.KCYS.WW.Y.0020.200319T0000Z-200321T0000Z/ Sierra Madre Range- 222 PM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 6 PM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 5 to 10 inches and ice accumulations of a light glaze. * WHERE...Sierra Madre Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ103>106-109-111-115-181200- /O.CON.KCYS.WW.Y.0020.200319T0300Z-200320T1200Z/ North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- Central Carbon County-Southwest Carbon County-Laramie Valley- Including the cities of Garrett, Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Rawlins, Baggs, Bosler, and Laramie 222 PM MDT Tue Mar 17 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM WEDNESDAY TO 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 6 inches and ice accumulations of a light glaze. Winds gusting as high as 30 mph at times. * WHERE...Carbon...Albany...Southwest Platte...and the North Laramie Range...including Rawlins...Laramie...and Medicine Bow. * WHEN...From 9 PM Wednesday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or 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. && $$
142 WWUS45 KCYS 181139 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 539 AM MDT Wed Mar 18 2020 ...MAJOR WINTER STORM TO BRING WIDESPREAD SNOW...WIND...AND TRAVEL IMPACTS TO SOUTHEAST WYOMING AND NEBRASKA PANHANDLE BEGINNING THIS AFTERNOON THROUGH FRIDAY... NEZ002-003-019>021-054-055-095-096-WYZ101-102-107-108-117>119- 201200- /O.CON.KCYS.BZ.W.0007.200319T1600Z-200320T1200Z/ /O.CON.KCYS.WW.Y.0020.200319T0300Z-200319T1600Z/ Dawes-Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County-Goshen County-South Laramie Range Foothills- Central Laramie County-East Laramie County- Including the cities of Chadron, Chadron St Park, Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, Guernsey, Torrington, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 539 AM MDT Wed Mar 18 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 10 AM MDT THURSDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 10 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations of 5 to 8 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of up to two inches and ice accumulations of up to a tenth of an inch. Winds gusting as high as 40 mph. * WHERE...Entire western Nebraska Panhandle...including Harrison...Chadron...Alliance...Scottsbluff...Kimball and Sidney...and the southeast Wyoming I-25 corridor and east...including Cheyenne...Wheatland...Douglas...and Lusk. * WHEN...For the Blizzard Warning, from 10 AM Thursday to 6 AM MDT Friday. For the Winter Weather Advisory, from 9 PM Wednesday to 10 AM MDT Thursday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. 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. && $$ WYZ110-116-201200- /O.CON.KCYS.BZ.W.0007.200319T0900Z-200320T1200Z/ /O.CON.KCYS.WW.Y.0020.200319T0300Z-200319T0900Z/ North Snowy Range Foothills-South Laramie Range- Including the cities of Arlington, Elk Mountain, Buford, Pumpkin Vine, and Vedauwoo 539 AM MDT Wed Mar 18 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 3 AM MDT THURSDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations of 4 to 9 inches, with locally higher amounts, and ice accumulations less than one tenth of an inch. Winds gusting as high as 50 mph. For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. * WHERE...Snowy Range Foothills near Arlington and Elk Mountain and the I-80 Summit between Vedauwoo and Buford. * WHEN...For the Blizzard Warning, from 3 AM Thursday to 6 AM MDT Friday. For the Winter Weather Advisory, from 9 PM Wednesday to 3 AM MDT Thursday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. 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. && $$ WYZ114-210000- /O.CON.KCYS.WS.W.0010.200319T0000Z-200321T0000Z/ Snowy Range- Including the cities of Centennial and Albany 539 AM MDT Wed Mar 18 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT FRIDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 9 to 15 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Snowy Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ112-210000- /O.CON.KCYS.WW.Y.0020.200319T0000Z-200321T0000Z/ Sierra Madre Range- 539 AM MDT Wed Mar 18 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 7 to 12 inches and ice accumulations of a light glaze. * WHERE...Sierra Madre Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing 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. && $$ WYZ103>106-109-111-113-115-201200- /O.CON.KCYS.WW.Y.0020.200319T0300Z-200320T1200Z/ North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- Central Carbon County-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley- Including the cities of Garrett, Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Rawlins, Baggs, Saratoga, Encampment, Bosler, and Laramie 539 AM MDT Wed Mar 18 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 7 inches and ice accumulations of a light glaze. Winds gusting as high as 30 mph at times. * WHERE...Carbon...Albany...Southwest Platte...and the North Laramie Range...including Rawlins...Laramie...Saratoga...and Medicine Bow. * WHEN...From 9 PM Wednesday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
304 WWUS45 KCYS 182037 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 237 PM MDT Wed Mar 18 2020 ...MAJOR WINTER STORM TO BRING WIDESPREAD SNOW...WIND...AND TRAVEL IMPACTS TO SOUTHEAST WYOMING AND NEBRASKA PANHANDLE BEGINNING THIS AFTERNOON THROUGH FRIDAY... NEZ002-003-095-096-WYZ101-102-191200- /O.CAN.KCYS.WW.Y.0020.200319T0300Z-200319T1600Z/ /O.EXT.KCYS.BZ.W.0007.200319T1200Z-200320T1200Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, and Redbird 237 PM MDT Wed Mar 18 2020 ...BLIZZARD WARNING NOW IN EFFECT FROM 6 AM THURSDAY TO 6 AM MDT FRIDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Blizzard conditions expected. Total snow accumulations of 5 to 8 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. Prior to strong winds developing...there will be a period of freezing rain and drizzle that could produce up to two tenths of an inch accumulation. * WHERE...Northern Nebraska Panhandle to include the towns of Chadron...Alliance...Hemingford and Harrison. Converse and Niobrara Counties in east central Wyoming along and south of U.S. 20 to include Douglas...Manville and Lusk. * WHEN...From 6 AM Thursday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. && $$ NEZ019>021-054-055-WYZ107-108-117>119-191200- /O.CAN.KCYS.WW.Y.0020.200319T0300Z-200319T1600Z/ /O.EXT.KCYS.BZ.W.0007.200319T1200Z-200320T1200Z/ Scotts Bluff County-Banner County-Morrill-Kimball County-Cheyenne- East Platte County-Goshen County-South Laramie Range Foothills- Central Laramie County-East Laramie County- Including the cities of Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Wheatland, Guernsey, Torrington, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 237 PM MDT Wed Mar 18 2020 ...BLIZZARD WARNING NOW IN EFFECT FROM 6 AM THURSDAY TO 6 AM MDT FRIDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Blizzard conditions expected. Total snow accumulations of 5 to 8 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. * WHERE...Areas along and southeast of a line from Douglas to Alliance. Includes the towns of Wheatland...Torrington...Cheyenne and Pine Bluffs in southeast Wyoming. Towns in the southern Nebraska Panhandle include Scottsbluff...Kimball...Sidney...Harrisburg and Bridgeport. * WHEN...From 6 AM Thursday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-116-191200- /O.CAN.KCYS.WW.Y.0020.200319T0300Z-200319T0900Z/ /O.CON.KCYS.BZ.W.0007.200319T0900Z-200320T1200Z/ North Snowy Range Foothills-South Laramie Range- Including the cities of Arlington, Elk Mountain, Buford, Pumpkin Vine, and Vedauwoo 237 PM MDT Wed Mar 18 2020 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 AM THURSDAY TO 6 AM MDT FRIDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Blizzard conditions expected. Total snow accumulations of 4 to 9 inches, with locally higher amounts, and ice accumulations less than one tenth of an inch. Winds gusting as high as 50 mph. * WHERE...Interstate 80 for the Interstate 80 Summit and Arlington. Includes the towns of Elk Mountain...Arlington and Buford. * WHEN...From 3 AM Thursday to 6 AM MDT Friday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. && $$ WYZ114-191200- /O.CON.KCYS.WS.W.0010.200319T0000Z-200321T0000Z/ Snowy Range- Including the cities of Centennial and Albany 237 PM MDT Wed Mar 18 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT FRIDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 12 to 18 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Snowy Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ103>106-109-111-113-115-191200- /O.EXT.KCYS.WW.Y.0020.200319T0900Z-200320T1200Z/ North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- Central Carbon County-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley- Including the cities of Garrett, Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Rawlins, Baggs, Saratoga, Encampment, Bosler, and Laramie 237 PM MDT Wed Mar 18 2020 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 AM THURSDAY TO 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 7 inches and ice accumulations of a light glaze. Winds gusting as high as 30 mph at times. * WHERE...Carbon...Albany...Southwest Platte...and the North Laramie Range...including Rawlins...Laramie and Saratoga. * WHEN...From 3 AM Thursday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or 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. && $$ WYZ112-191200- /O.CON.KCYS.WW.Y.0020.200319T0000Z-200321T0000Z/ Sierra Madre Range- 237 PM MDT Wed Mar 18 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 7 to 12 inches and ice accumulations of a light glaze. * WHERE...Sierra Madre Range. * WHEN...From 6 PM Wednesday to 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
838 WWUS45 KCYS 190940 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 340 AM MDT Thu Mar 19 2020 ...MAJOR WINTER STORM TO BRING WIDESPREAD SNOW...WIND...AND TRAVEL IMPACTS TO SOUTHEAST WYOMING AND NEBRASKA PANHANDLE THROUGH FRIDAY... NEZ002-003-095-096-WYZ101-102-201200- /O.CON.KCYS.BZ.W.0007.200319T1200Z-200320T1200Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, and Redbird 340 AM MDT Thu Mar 19 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 2 to 4 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. Prior to strong winds developing... there will be a period of freezing rain and drizzle that could produce up to two tenths of an inch accumulation. * WHERE...Northern Nebraska Panhandle to include the towns of Chadron...Alliance...Hemingford and Harrison. Converse and Niobrara Counties in east central Wyoming along and south of U.S. 20 to include Douglas...Manville and Lusk. * WHEN...From 6 AM Thursday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. && $$ NEZ019>021-054-055-WYZ107-108-117>119-201200- /O.CON.KCYS.BZ.W.0007.200319T1200Z-200320T1200Z/ Scotts Bluff County-Banner County-Morrill-Kimball County-Cheyenne- East Platte County-Goshen County-South Laramie Range Foothills- Central Laramie County-East Laramie County- Including the cities of Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Wheatland, Guernsey, Torrington, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 340 AM MDT Thu Mar 19 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 4 to 8 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. Areas near and around Sidney will be the last to switch over to snow, expected by noon today. * WHERE...Areas along and southeast of a line from Douglas to Alliance. Includes the towns of Wheatland...Torrington... Cheyenne and Pine Bluffs in southeast Wyoming. Towns in the southern Nebraska Panhandle include Scottsbluff...Kimball... Sidney... Harrisburg and Bridgeport. * WHEN...From 6 AM Thursday to 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-116-201200- /O.CON.KCYS.BZ.W.0007.000000T0000Z-200320T1200Z/ North Snowy Range Foothills-South Laramie Range- Including the cities of Arlington, Elk Mountain, Buford, Pumpkin Vine, and Vedauwoo 340 AM MDT Thu Mar 19 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 4 to 8 inches, with locally higher amounts, and ice accumulations of a light glaze. Winds gusting as high as 50 mph. * WHERE...Interstate 80 for the Interstate 80 Summit and Arlington. Includes the towns of Elk Mountain...Arlington and Buford. * WHEN...Through 6 AM MDT Friday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. && $$ WYZ114-210000- /O.CON.KCYS.WS.W.0010.000000T0000Z-200321T0000Z/ Snowy Range- Including the cities of Centennial and Albany 340 AM MDT Thu Mar 19 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations around 12 inches with locally heavier amounts, and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Snowy Range. * WHEN...Through 6 PM MDT Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ112-210000- /O.CON.KCYS.WW.Y.0020.000000T0000Z-200321T0000Z/ Sierra Madre Range- 340 AM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 7 to 9 inches and ice accumulations of a light glaze. * WHERE...Sierra Madre Range. * WHEN...Through 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing 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. && $$ WYZ103>106-109-111-113-115-201200- /O.CON.KCYS.WW.Y.0020.000000T0000Z-200320T1200Z/ North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- Central Carbon County-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley- Including the cities of Garrett, Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Rawlins, Baggs, Saratoga, Encampment, Bosler, and Laramie 340 AM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 5 inches and ice accumulations of a light glaze. Winds gusting as high as 30 mph at times. * WHERE...Carbon...Albany...Southwest Platte...and the North Laramie Range...including Rawlins...Laramie and Saratoga. * WHEN...Through 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
523 WWUS45 KCYS 191618 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 1018 AM MDT Thu Mar 19 2020 ...MAJOR WINTER STORM TO BRING WIDESPREAD SNOW...WIND...AND TRAVEL IMPACTS TO SOUTHEAST WYOMING AND NEBRASKA PANHANDLE THROUGH FRIDAY... NEZ002-003-095-096-WYZ101-102-201200- /O.CAN.KCYS.BZ.W.0007.000000T0000Z-200320T1200Z/ /O.EXA.KCYS.WW.Y.0020.000000T0000Z-200320T1200Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, and Redbird 1018 AM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT FRIDAY... ...BLIZZARD WARNING IS CANCELLED... * WHAT...Mixed precipitation. Additional snow accumulations of up to two inches and ice accumulations of around one tenth of an inch. Winds gusting as high as 55 mph. * WHERE...Northern Nebraska Panhandle to include the towns of Chadron...Alliance...Hemingford and Harrison. Converse and Niobrara Counties in east central Wyoming along and south of U.S. 20 to include Douglas...Manville and Lusk. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or 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. && $$ NEZ019>021-054-055-WYZ107-108-117>119-201200- /O.CON.KCYS.BZ.W.0007.000000T0000Z-200320T1200Z/ Scotts Bluff County-Banner County-Morrill-Kimball County-Cheyenne- East Platte County-Goshen County-South Laramie Range Foothills- Central Laramie County-East Laramie County- Including the cities of Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Wheatland, Guernsey, Torrington, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 1018 AM MDT Thu Mar 19 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 4 to 8 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. Areas near and around Sidney will be the last to switch over to snow, expected by noon today. * WHERE...Areas along and southeast of a line from Douglas to Alliance. Includes the towns of Wheatland...Torrington... Cheyenne and Pine Bluffs in southeast Wyoming. Towns in the southern Nebraska Panhandle include Scottsbluff...Kimball... Sidney... Harrisburg and Bridgeport. * WHEN...Through 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-116-201200- /O.CON.KCYS.BZ.W.0007.000000T0000Z-200320T1200Z/ North Snowy Range Foothills-South Laramie Range- Including the cities of Arlington, Elk Mountain, Buford, Pumpkin Vine, and Vedauwoo 1018 AM MDT Thu Mar 19 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 4 to 8 inches, with locally higher amounts, and ice accumulations of a light glaze. Winds gusting as high as 50 mph. * WHERE...Interstate 80 for the Interstate 80 Summit and Arlington. Includes the towns of Elk Mountain...Arlington and Buford. * WHEN...Through 6 AM MDT Friday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. && $$ WYZ114-201200- /O.CON.KCYS.WS.W.0010.000000T0000Z-200321T0000Z/ Snowy Range- Including the cities of Centennial and Albany 1018 AM MDT Thu Mar 19 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations around 12 inches with locally heavier amounts, and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Snowy Range. * WHEN...Through 6 PM MDT Friday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ112-201200- /O.CON.KCYS.WW.Y.0020.000000T0000Z-200321T0000Z/ Sierra Madre Range- 1018 AM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 7 to 9 inches and ice accumulations of a light glaze. * WHERE...Sierra Madre Range. * WHEN...Through 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing 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. && $$ WYZ103>106-109-111-113-115-201200- /O.CON.KCYS.WW.Y.0020.000000T0000Z-200320T1200Z/ North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- Central Carbon County-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley- Including the cities of Garrett, Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Rawlins, Baggs, Saratoga, Encampment, Bosler, and Laramie 1018 AM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 5 inches and ice accumulations of a light glaze. Winds gusting as high as 30 mph at times. * WHERE...Carbon...Albany...Southwest Platte...and the North Laramie Range...including Rawlins...Laramie and Saratoga. * WHEN...Through 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WM
480 WWUS45 KCYS 192012 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 212 PM MDT Thu Mar 19 2020 ...WINTER STORM CONTINUES WIND AND SNOW ACROSS THE REGION THIS AFTERNOON... NEZ019-WYZ107-108-110-116>118-200415- /O.CAN.KCYS.BZ.W.0007.000000T0000Z-200320T1200Z/ /O.EXA.KCYS.WW.Y.0020.000000T0000Z-200320T1200Z/ Scotts Bluff County-East Platte County-Goshen County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills-Central Laramie County- Including the cities of Scottsbluff, Gering, Wheatland, Guernsey, Torrington, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 212 PM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT FRIDAY... ...BLIZZARD WARNING IS CANCELLED... * WHAT...Mixed precipitation. Additional snow accumulations of up to 3 inches and ice accumulations of a light glaze. Winds gusting as high as 55 mph. * WHERE...Scotts Bluff County in Nebraska and much of southeastern Wyoming. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or 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. && $$ WYZ114-200415- /O.CAN.KCYS.WS.W.0010.000000T0000Z-200321T0000Z/ /O.EXA.KCYS.WW.Y.0020.000000T0000Z-200321T0000Z/ Snowy Range- Including the cities of Centennial and Albany 212 PM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT FRIDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 45 mph. * WHERE...Snowy Range. * WHEN...Until 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ020-021-054-055-WYZ119-200415- /O.CON.KCYS.BZ.W.0007.000000T0000Z-200320T1200Z/ Banner County-Morrill-Kimball County-Cheyenne-East Laramie County- Including the cities of Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, and Pine Bluffs 212 PM MDT Thu Mar 19 2020 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Blizzard conditions expected. Total snow accumulations of 4 to 8 inches and ice accumulations of a light glaze. Winds gusting as high as 50 mph. Areas near and around Sidney will be the last to switch over to snow, expected by noon today. * WHERE...Areas along and southeast of a line from Douglas to Alliance. Includes the towns of Wheatland...Torrington... Cheyenne and Pine Bluffs in southeast Wyoming. Towns in the southern Nebraska Panhandle include Scottsbluff...Kimball... Sidney... Harrisburg and Bridgeport. * WHEN...Through 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions will be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. 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. && $$ WYZ112-200415- /O.CON.KCYS.WW.Y.0020.000000T0000Z-200321T0000Z/ Sierra Madre Range- 212 PM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 7 to 9 inches and ice accumulations of a light glaze. * WHERE...Sierra Madre Range. * WHEN...Through 6 PM MDT Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Snowmobilers and hikers stand a high risk of becoming disoriented and lost in very low visibility from snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ002-003-095-096-WYZ101>106-109-111-113-115-200415- /O.CON.KCYS.WW.Y.0020.000000T0000Z-200320T1200Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- Central Carbon County-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Garrett, Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Rawlins, Baggs, Saratoga, Encampment, Bosler, and Laramie 212 PM MDT Thu Mar 19 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY... * WHAT...Mixed precipitation. Additional snow accumulations of up to two inches and ice accumulations of around one tenth of an inch. Winds gusting as high as 55 mph. * WHERE...Northern Nebraska Panhandle to include the towns of Chadron...Alliance...Hemingford and Harrison. Converse and Niobrara Counties in east central Wyoming along and south of U.S. 20 to include Douglas...Manville and Lusk. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Areas of blowing snow could significantly reduce visibility. Conditions could be hazardous to livestock and newborn calves. Travel could be very difficult. The hazardous conditions could impact the morning or 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. && $$ WM
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 Mar 16, 11:29 PM MDT, 4 hours 51 minutes earlier.
Area forecast discussion, Mar 16, 11:29 PM MDT, 4 hours 51 minutes before
Area Forecast Discussion
National Weather Service Cheyenne WY
1129 PM MDT Mon Mar 16 2020
.UPDATE...
Issued at 1001 PM MDT Mon Mar 16 2020
Areas of fog & freezing drizzle are rapidly developing along the I
80 corridor late this evening. Webcams & surface observations have
already shown visibilities to one quarter of a mile or less. High-
resolution guidance suggests continued moist low-level upslope for
areas along/east of the Laramie Range, so expect visibilities will
worsen in the next few hours. A Freezing Fog Advisory is now valid
until 9 AM MDT Tuesday.
UPDATE Issued at 800 PM MDT Mon Mar 16 2020
There is potential for areas of light freezing drizzle through the
remainder of the evening & into the overnight, mainly along the I-
80 corridor between the Summit and Sidney. Model soundings suggest
deep saturation between 0 and -10 deg C after 10 PM, helping limit
potential for ice crystal growth and promoting -FZDZ. Do not think
we will see significant ice accretion, but some areas may see one-
or two hundredths of an inch of ice, leading to a slick AM commute
across these areas. Updates have been sent.
&&
.SHORT TERM...(This evening through Tuesday)
Issued at 315 PM MDT Mon Mar 16 2020
Low clouds associated with a semi-stationary frontal boundary are
still lingering from extreme eastern portions of Laramie County near
Pine Bluffs to the northwest up to Casper this afternoon. The low
clouds will slowly retreat to the east and northeast, later this
afternoon and evening. This will keep temperatures in the western
and northern portions of the Nebraska Panhandle cool, with
temperatures struggling to reach 40 degrees in several areas.
Short term model guidance from the HRRR and NAM showing a few stray
rain showers are possible this evening, but not expecting much.
Clouds are anticipated to build east to west late this evening
thanks to the frontal boundary advancing toward Rawlins overnight.
This will assist with temperatures staying elevated across the
region overnight in the 20s most likely. Clearing is not expected
across the region until afternoon as the semi-stationary frontal
boundary retreats out of the area by Tuesday evening.
Temperatures will still rebound nicely tomorrow with above average
readings across the region, despite clouds early on. Mostly cloudy
conditions across the area will give way to afternoon sunshine from
west to east. Areas just to the east of the Laramie Range will see
temperatures in the low to mid 50s, with some cities close to 60
degrees.
.LONG TERM...(Tuesday night through Monday)
Issued at 315 PM MDT Mon Mar 16 2020
...Major Winter Storm to Impact the Area Wednesday Night Through
Friday Morning...
Low currently off the California coast tracks down near the
California Baja Tuesday evening and then tracks inland into
northern Arizona Wednesday evening. Upper ridge axis passes east
into northeastern Wyoming and western South Dakota Wednesday
evening with broad upper level diffluence on the western side of
the ridge Wednesday evening. Near the surface...low undergoes
cyclogenesis over northeastern Colorado. 110-120kt jet in
favorable position for additional lift across our southeastern
CWA. We will have a frontal boundary in place across the east
slopes of the Laramie Range.
GFS and ECMWF both showing widespread heavy snowfall developing
Wednesday night and becoming widespread Thursday. GFS showing
winds increasing Thursday morning...up to 45-50kts at 800mb and
40-45kts at 700mb along and east of the Laramie Range. We approach
55-60kts at 750 and 800mbs across the Panhandle late Thursday
morning...so blizzard conditions looking likely. Due to the
widespread nature of this snow and the strong winds...decided to
issue a Winter STorm Watch for almost the entire CWA.
First low tracks east Friday morning...but ECMWF showing a
secondary shortwave tracking across central Colorado Friday
afternoon and evening. Snow may continue Friday evening for a
time...especially the Snowy and Sierra Madre Ranges as well as
the I-80 Corridor along southern Wyoming.
&&
.AVIATION...(For the 06Z TAFS through 06Z Tuesday night)
Issued at 1124 PM MDT Mon Mar 16 2020
Wyoming TAFS...VFR at Rawlins. Wind gusts to 25 knots from 18Z to
00Z.
IFR at Laramie until 18Z, then VFR. Wind gusts to 25 knots from
18Z to 00Z.
IFR at Cheyenne until 15Z, then VFR.
Nebraska TAFS...IFR at Chadron until 10Z, then MVFR until 20Z,
then VFR. Wind gusts to 25 knots after 20Z.
MVFR at Alliance until 16Z, then VFR. Wind gusts to 30 knots after
16Z.
IFR at Scottsbluff until 15Z, then MVFR until 18Z, then VFR. Wind
gusts to 25 knots after 18Z.
IFR at Sidney until 16Z, then MVFR until 21Z, then VFR. Wind gusts
to 25 knots from 16Z to 21Z.
&&
.FIRE WEATHER...
Issued at 315 PM MDT Mon Mar 16 2020
Minimal fire weather concerns over the next week as southeast
Wyoming and Nebraska Panhandle will have a weak frontal boundary
that meanders from the east slopes of the Laramie Range out into
the Panhandle. East of the front...low clouds and high humidity
will prevail. West of the front...sunny skies and dry conditions
expected...though afternoon humidity will stay well above critical
levels. A strong low pressure system begins to move into northern
Colorado Wednesday afternoon and will slowly track into northeast
Colorado Thursday. This low will bring widespread heavy snow and
near blizzard conditions to most areas...especially Thursday
morning through Friday morning.
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Winter Storm Watch from Wednesday evening through late Thursday
night for WYZ103>106-109-110-115-116.
Winter Storm Watch from Wednesday evening through late Thursday
night for WYZ101-102-107-108-117>119.
Freezing Fog Advisory until 9 AM MDT Tuesday for WYZ116>119.
Winter Storm Watch from Wednesday afternoon through late
Thursday night for WYZ112-114.
NE...Winter Storm Watch from late Wednesday night through late
Thursday night for NEZ002-003-019>021-054-055-095-096.
&&
UPDATE...CLH
SHORT TERM...BW
LONG TERM...GCC
AVIATION...RUBIN
FIRE WEATHER...GCCHazardous weather outlook, Mar 16, 4:36 AM MDT, 23 hours 44 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 436 AM MDT Mon Mar 16 2020 NEZ002-003-019>021-054-055-095-096-WYZ101-102-107-108-119-171045- Dawes-Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County-Goshen County-East Laramie County- 436 AM MDT Mon Mar 16 2020 This hazardous weather outlook is for portions of panhandle Nebraska...western Nebraska...east central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT Areas of fog will persist early this morning with visibilities reduced to a half mile or less at times. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A major winter storm may impact the area from Wednesday afternoon through Friday morning with widespread moderate to heavy snow and strong winds that may cause near-blizzard conditions. Continue to monitor the latest forecasts. .Spotter information statement... Spotter activation will not be required. WYZ103>106-109>118-171045- North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte 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- 436 AM MDT Mon Mar 16 2020 This hazardous weather outlook is for portions of south central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A major winter storm may impact the area from Wednesday afternoon through Friday morning with widespread moderate to heavy snow and strong winds that may cause near-blizzard conditions. Continue to monitor the latest forecasts. .Spotter information statement... Spotter activation will not be required.
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 9:56 PM MDT | Freezing Fog Advisory | CYS | Albany, Carbon, Laramie | 14 hr |
| Mar 17, 4:20 AM MDT | Blizzard Warning | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 64 hr |
| Mar 17, 4:20 AM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 4 days |
Nearby
Winter Storm Warnings in Wyoming, 2020Every winter storm 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.