Alert archive / Wyoming / High Wind Warnings in 2020
High Wind Warning 53, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Dec 22, 2020, 1:13 PM MST for 4 counties in Wyoming; Dawes County, Sioux County, Nebraska. It took effect at Dec 22, 2020, 5:00 PM MST. It was in force for 17 hr. 57 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 22, 2020, 1:13 PM MST (20:13 UTC)
- In effect from
- Dec 22, 2020, 5:00 PM MST
- Expired
- Dec 23, 2020, 9:54 AM MST
- In force
- 17 hr
- Issued by
- NWS Cheyenne, WY
Counties Dawes County, NE, Sioux County, NE, Albany County, WY, Carbon County, WY, Goshen County, WY, Laramie County, WY
The radar
The Cheyenne radar (KCYS), 93 km from the middle of the area, began a volume at 20:10 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 22, 5:02 PM MST | NON-TSTM WND GST 58 | 3 Ese Elk Mountain, WY | WYDOT SENSOR AT COUNTY ROAD 402. |
| Dec 22, 5:02 PM MST | NON-TSTM WND GST 61 | 3 Nw Elk Mountain, WY | WYDOT SENSOR AT ELK MOUNTAIN. |
| Dec 22, 5:06 PM MST | NON-TSTM WND GST 60 | 7 Nw Elk Mountain, WY | WYDOT SENSOR AT HALLECK RIDGE. SUSTAINED WINDS 43 TO 47 MPH. |
| Dec 22, 5:06 PM MST | NON-TSTM WND GST 63 | 3 Nw Elk Mountain, WY | WYDOT SENSOR AT ELK MOUNTAIN. SUSTAINED WINDS 40 MPH. |
| Dec 22, 5:12 PM MST | NON-TSTM WND GST 61 | Skyline, WY | WYDOT SENSOR AT SKYLINE, SOUTH OF SARATOGA. |
| Dec 22, 5:12 PM MST | NON-TSTM WND GST 66 | 3 Ese Elk Mountain, WY | WYDOT SENSOR AT COUNTY ROAD 402. SUSTAINED WINDS AT 39 MPH. |
| Dec 22, 5:29 PM MST | NON-TSTM WND GST 65 | 3 W Muddy Gap, WY | RAWS OBSERVATION SITE AT CAMP CREEK, NEAR THE CARBON COUNTY LINE. |
| Dec 22, 5:32 PM MST | NON-TSTM WND GST 68 | 7 Ese Arlington, WY | WYDOT SENSOR AT COOPER COVE. |
| Dec 22, 5:50 PM MST | NON-TSTM WND GST 69 | 4 Sw Muddy Gap, WY | |
| Dec 22, 5:52 PM MST | SNOW 0.1 | Pumpkin Vine, WY | CORRECTS PREVIOUS REPORT FROM PUMPKIN VINE. SNOW SQUALL AT PUMPKIN VINE HIGHWAY 287. VISIBILITY ONE TENTH OF A MILE. WIND GUSTS OF 50 TO 55 MPH. |
| Dec 22, 5:52 PM MST | BLIZZARD | Pumpkin Vine, WY | SNOW SQUALL AT PUMPKIN VINE HIGHWAY 287. VISIBILITY ONE TENTH OF A MILE. WIND GUSTS OF 50 TO 55 MPH. |
| Dec 22, 6:06 PM MST | NON-TSTM WND GST 70 | 7 Ese Arlington, WY | WYDOT SENSOR AT COOPER COVE. SUSTAINED WINDS OF 46 MPH. |
| Dec 22, 6:06 PM MST | SNOW 0.1 | Vedauwoo, WY | CORRECTS PREVIOUS REPORT FROM VEDAUWOO. SNOW SQUALL ALONG INTERSTATE 80 AT VEDAUWOO. VISIBILITY ONE QUARTER MILE. WIND GUSTS 43 TO 48 MPH. |
| Dec 22, 6:06 PM MST | BLIZZARD | Vedauwoo, WY | SNOW SQUALL ALONG INTERSTATE 80 AT VEDAUWOO. VISIBILITY ONE QUARTER MILE. WIND GUSTS 43 TO 48 MPH. |
| Dec 22, 6:10 PM MST | SNOW 0.1 | 2 Wnw Buford, WY | CORRECTS PREVIOUS REPORT FROM 2 WNW BUFORD. HEAVY SNOW SQUALL AT LONE TREE INTERSTATE 80 WEST OF CHEYENNE. VISIBILITY 1/8 TO 1/4 MILE FOR 40 MINUTES. WIND GUSTS BETWEEN 43 TO 47 MPH. |
| Dec 22, 6:10 PM MST | BLIZZARD | 2 Wnw Buford, WY | HEAVY SNOW SQUALL AT LONE TREE INTERSTATE 80 WEST OF CHEYENNE. VISIBILITY 1/8 TO 1/4 MILE FOR 40 MINUTES. WIND GUSTS BETWEEN 43 TO 47 MPH. |
| Dec 22, 6:12 PM MST | NON-TSTM WND GST 59 | 1 Nw Cheyenne, WY | AT CHEYENNE AIRPORT. SUSTAINED WINDS OF 36 TO 40 MPH. |
| Dec 22, 6:19 PM MST | NON-TSTM WND GST 69 | 12 Sse Horse Creek, WY | |
| Dec 22, 6:22 PM MST | NON-TSTM WND GST 63 | 1 Nnw Arlington, WY | WYDOT SENSOR AT ARLINGTON. SUSTAINED WINDS 45 MPH. |
| Dec 22, 6:22 PM MST | NON-TSTM WND GST 73 | 7 Ese Arlington, WY | WYDOT SENSOR AT COOPER COVE. SUSTAINED WINDS 42 MPH. |
| Dec 22, 6:22 PM MST | SNOW 0.1 | 5 E Buford, WY | CORRECTS PREVIOUS REPORT FROM 5 E BUFORD. SNOW SQUALL ALONG INTERSTATE 80 AT REMOUNT, WEST OF CHEYENNE. VISIBILITY 1/8 OF A MILE. WIND GUSTS 40 TO 45 MPH. |
| Dec 22, 6:22 PM MST | BLIZZARD | 5 E Buford, WY | SNOW SQUALL ALONG INTERSTATE 80 AT REMOUNT, WEST OF CHEYENNE. VISIBILITY 1/8 OF A MILE. WIND GUSTS 40 TO 45 MPH. |
| Dec 22, 6:36 PM MST | NON-TSTM WND GST 66 | 11 Se Arlington, WY | WYDOT SENSOR AT STROUSS HILL. |
| Dec 22, 6:52 PM MST | NON-TSTM WND GST 59 | 2 E Arlington, WY | WYDOT SENSOR AT ARLINGTON EAST. SUSTAINED WINDS OF 42 MPH. |
| Dec 22, 6:56 PM MST | NON-TSTM WND GST 80 | 11 Se Arlington, WY | WYDOT SENSOR AT STROUSS HILL. SUSTAINED WINDS OF 45 MPH. |
| Dec 22, 7:02 PM MST | NON-TSTM WND GST 62 | 7 Sw Federal, WY | WYDOT SENSOR AT WILDCAT TRAIL. HIGHWAY 210. |
| Dec 22, 7:06 PM MST | NON-TSTM WND GST 60 | 5 E Buford, WY | WYDOT SENSOR AT REMOUNT. |
| Dec 22, 7:15 PM MST | NON-TSTM WND GST 60 | 9 Se Buford, WY | MESONET STATION UP204 9.2 SE BUFORD (UPR). |
| Dec 22, 7:25 PM MST | NON-TSTM WND GST 71 | 11 Wsw Warren Af Base, WY | UPR SENSOR AT EMKAY. |
| Dec 22, 7:26 PM MST | NON-TSTM WND GST 65 | 7 Sw Federal, WY | WYDOT SENSOR AT WILDCAT TRAIL. HIGHWAY 210 WEST OF CHEYENNE. |
| Dec 22, 7:32 PM MST | NON-TSTM WND GST 60 | 1 Nnw Whitaker, WY | WYDOT SENSOR AT WHITAKER, INTERSTATE 25 NORTH OF CHEYENNE. |
| Dec 22, 7:42 PM MST | NON-TSTM WND GST 65 | 1 Nnw Whitaker, WY | WYDOT SENSOR AT WHITAKER. |
| Dec 22, 7:42 PM MST | NON-TSTM WND GST 65 | 7 Ese Arlington, WY | WYDOT SENSOR AT COOPER COVE. |
| Dec 22, 7:45 PM MST | NON-TSTM WND GST 62 | 9 Se Buford, WY | MESONET STATION UP204 9.2 SE BUFORD (UPR). |
| Dec 22, 7:46 PM MST | NON-TSTM WND GST 60 | 8 S Chugwater, WY | WYDOT SENSOR AT BEAR CREEK. |
| Dec 22, 8:02 PM MST | NON-TSTM WND GST 60 | 2 Wnw Buford, WY | WYDOT SENSOR AT LONE TREE. SUSTAINED WINDS OF 50 MPH. |
| Dec 22, 8:02 PM MST | NON-TSTM WND GST 64 | 1 Ene Buford, WY | WYDOT SENSOR AT BUFORD EAST. |
| Dec 22, 8:10 PM MST | NON-TSTM WND GST 74 | 9 Se Buford, WY | UPR SENSOR AT LYNCH. |
| Dec 22, 8:12 PM MST | NON-TSTM WND GST 75 | 7 Ese Arlington, WY | WYDOT SENSOR AT COOPER COVE. SUSTAINED WINDS AT 48 MPH. |
| Dec 22, 8:24 PM MST | NON-TSTM WND GST 73 | 12 Sse Horse Creek, WY | |
| Dec 22, 8:32 PM MST | NON-TSTM WND GST 62 | 1 Nnw Whitaker, WY | WYDOT SENSOR AT WHITAKER. |
| Dec 22, 8:32 PM MST | NON-TSTM WND GST 71 | 1 Nnw Arlington, WY | WYDOT SENSOR AT ARLINGTON. SUSTAINED WINDS OF 58 MPH. |
| Dec 22, 9:04 PM MST | NON-TSTM WND GST 81 | 12 Sse Horse Creek, WY | |
| Dec 22, 9:10 PM MST | NON-TSTM WND GST 60 | 3 Ne Pumpkin Vine, WY | UPR SENSOR AT DALE. |
| Dec 22, 9:15 PM MST | NON-TSTM WND GST 58 | 4 Wsw Pine Bluffs, WY | AWOS STATION IN PINE BLUFFS. |
| Dec 22, 9:32 PM MST | NON-TSTM WND GST 69 | 1 Ene Buford, WY | WYDOT SENSOR AT BUFORD. SUSTAINED WINDS OF 53 MPH. |
| Dec 22, 10:40 PM MST | NON-TSTM WND GST 70 | 12 Ene Harrison, NE | |
| Dec 22, 11:53 PM MST | NON-TSTM WND GST 58 | 1 Nw Cheyenne, WY | ASOS STATION KCYS CHEYENNE AIRPORT - CYS. |
| Dec 23, 12:00 AM MST | SNOW 0.1 | 8 Wsw Hillsdale, WY | FROM 12:00 AM-12:08AM WHITE CONDITIONS ON WYDOT WEBCAM WIND GUSTS 30 MPH VISIBILITY DROPPED TO 1/4 MILE FOR 8 MINUTES ALONG I80. |
| Dec 23, 12:24 AM MST | NON-TSTM WND GST 59 | 17 Nne Harrison, NE | MESONET STATION MTRN1 MONTROSE. |
| Dec 23, 12:36 AM MST | NON-TSTM WND GST 0 | 1 Nnw Whitaker, WY | VISIBILITY NEAR QUARTER MILE FOR 8 MINUTES FROM 12:36 AM TO 12:42 AM GUSTS 26 MPH. |
| Dec 23, 12:43 AM MST | NON-TSTM WND GST 59 | 2 E Torrington, WY | ASOS STATION KTOR TORRINGTON AIRPORT - TOR. |
| Dec 23, 12:53 AM MST | NON-TSTM WND GST 62 | 2 E Torrington, WY | ASOS STATION KTOR TORRINGTON AIRPORT - TOR. |
| Dec 23, 1:45 AM MST | NON-TSTM WND GST 58 | 6 S Albin, WY | |
| Dec 23, 1:53 AM MST | NON-TSTM WND GST 60 | 5 W Chadron, NE | ASOS STATION KCDR CHADRON AIRPORT - CDR. |
| Dec 23, 2:12 AM MST | NON-TSTM WND GST 58 | 8 S Chugwater, WY | MESONET STATION WY40 7.5 S CHUGWATER (WYDOT). |
| Dec 23, 5:13 AM MST | NON-TSTM WND GST 56 | 2 Ene Agate, NE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 8.2 hours before the alert went out and 269 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
- 2805 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
310 WWUS75 KCYS 222013 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 113 PM MST Tue Dec 22 2020 NEZ002-095-WYZ104-105-108-109-113-115-118-119-230415- /O.CAN.KCYS.HW.W.0052.000000T0000Z-201223T2100Z/ /O.NEW.KCYS.HW.W.0053.201223T0000Z-201223T2100Z/ Dawes-North Sioux-Ferris/Seminoe/Shirley Mountains-Shirley Basin- Goshen County-Central Carbon County- Upper North Platte River Basin-Laramie Valley- Central Laramie County-East Laramie County- Including the cities of Chadron, Chadron St Park, Harrison, Seminoe Dam, Medicine Bow, Shirley Basin, Torrington, Rawlins, Saratoga, Encampment, Bosler, Laramie, Cheyenne, and Pine Bluffs 113 PM MST Tue Dec 22 2020 ...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 PM MST WEDNESDAY... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Ferris/Seminoe/Shirley Mountains, Shirley Basin, Goshen County, Central Carbon County, Upper North Platte River Basin, Laramie Valley, Central Laramie County and East Laramie County Counties. In Nebraska, Dawes and North Sioux Counties. * WHEN...From 5 PM this afternoon to 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL IMPACTS...Areas of blowing snow are also expected west of the Laramie Range. Visibilities may be reduced below a mile at times in blowing snow. Roads and highways may become slick and icy due to drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NEZ003-019>021-054-055-096-WYZ101-102-107-230415- /O.UPG.KCYS.HW.A.0040.000000T0000Z-201223T2100Z/ /O.EXB.KCYS.HW.W.0052.201223T0300Z-201223T2100Z/ Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County- Including the cities of Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, and Guernsey 113 PM MST Tue Dec 22 2020 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 2 PM MST WEDNESDAY... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Converse County Lower Elevations, Niobrara County and East Platte County Counties. In Nebraska, Box Butte, Scotts Bluff County, Banner County, Morrill, Kimball County, Cheyenne and South Sioux Counties. * WHEN...From 8 PM this evening to 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ106-110-116-117-230415- /O.CON.KCYS.HW.W.0052.000000T0000Z-201225T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 113 PM MST Tue Dec 22 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Wind prone areas of southeast Wyoming...including Arlington...Elk Mountain...Bordeaux...Interstate 80 Summit and eastern foothills. * WHEN...From 7 AM this morning to 11 AM MST Friday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$
4 follow-up statements
298 WWUS75 KCYS 230301 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 801 PM MST Tue Dec 22 2020 WYZ106-110-116-117-231200- /O.CON.KCYS.HW.W.0052.000000T0000Z-201225T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 801 PM MST Tue Dec 22 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Wind prone areas of southeast Wyoming...including Arlington...Elk Mountain...Bordeaux...Interstate 80 Summit and eastern foothills. * WHEN...Until 11 AM MST Friday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NEZ002-095-WYZ104-105-108-109-113-115-118-119-231200- /O.CON.KCYS.HW.W.0053.000000T0000Z-201223T2100Z/ Dawes-North Sioux-Ferris/Seminoe/Shirley Mountains-Shirley Basin- Goshen County-Central Carbon County- Upper North Platte River Basin-Laramie Valley- Central Laramie County-East Laramie County- Including the cities of Chadron, Chadron St Park, Harrison, Seminoe Dam, Medicine Bow, Shirley Basin, Torrington, Rawlins, Saratoga, Encampment, Bosler, Laramie, Cheyenne, and Pine Bluffs 801 PM MST Tue Dec 22 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST WEDNESDAY... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Ferris/Seminoe/Shirley Mountains, Shirley Basin, Goshen County, Central Carbon County, Upper North Platte River Basin, Laramie Valley, Central Laramie County and East Laramie County Counties. In Nebraska, Dawes and North Sioux Counties. * WHEN...Until 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL IMPACTS...Areas of blowing snow are also expected west of the Laramie Range. Visibilities may be reduced below a mile at times in blowing snow. Roads and highways may become slick and icy due to drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NEZ003-019>021-054-055-096-WYZ101-102-107-231200- /O.CON.KCYS.HW.W.0052.000000T0000Z-201223T2100Z/ Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County- Including the cities of Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, and Guernsey 801 PM MST Tue Dec 22 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST WEDNESDAY... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Converse County Lower Elevations, Niobrara County and East Platte County Counties. In Nebraska, Box Butte, Scotts Bluff County, Banner County, Morrill, Kimball County, Cheyenne and South Sioux Counties. * WHEN...Until 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ Rubin
893 WWUS75 KCYS 231031 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 331 AM MST Wed Dec 23 2020 WYZ106-110-116-117-251800- /O.CON.KCYS.HW.W.0052.000000T0000Z-201225T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 331 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Wind prone areas of southeast Wyoming...including Arlington...Elk Mountain...Bordeaux...Interstate 80 Summit and eastern foothills. * WHEN...Until 11 AM MST Friday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ NEZ002-095-WYZ104-105-108-109-113-115-118-119-232100- /O.CON.KCYS.HW.W.0053.000000T0000Z-201223T2100Z/ Dawes-North Sioux-Ferris/Seminoe/Shirley Mountains-Shirley Basin- Goshen County-Central Carbon County- Upper North Platte River Basin-Laramie Valley- Central Laramie County-East Laramie County- Including the cities of Chadron, Chadron St Park, Harrison, Seminoe Dam, Medicine Bow, Shirley Basin, Torrington, Rawlins, Saratoga, Encampment, Bosler, Laramie, Cheyenne, and Pine Bluffs 331 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Ferris/Seminoe/Shirley Mountains, Shirley Basin, Goshen County, Central Carbon County, Upper North Platte River Basin, Laramie Valley, Central Laramie County and East Laramie County Counties. In Nebraska, Dawes and North Sioux Counties. * WHEN...Until 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL IMPACTS...Areas of blowing snow are also expected west of the Laramie Range. Visibilities may be reduced below a mile at times in blowing snow. Roads and highways may become slick and icy due to drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage.&& $$ NEZ003-019>021-054-055-096-WYZ101-102-107-232100- /O.CON.KCYS.HW.W.0052.000000T0000Z-201223T2100Z/ Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County- Including the cities of Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, and Guernsey 331 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Converse County Lower Elevations, Niobrara County and East Platte County Counties. In Nebraska, Box Butte, Scotts Bluff County, Banner County, Morrill, Kimball County, Cheyenne and South Sioux Counties. * WHEN...Until 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage.&& $$ AB/AW
541 WWUS75 KCYS 231607 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 907 AM MST Wed Dec 23 2020 WYZ104-105-109-113-115-231715- /O.CAN.KCYS.HW.W.0053.000000T0000Z-201223T2100Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Carbon County-Upper North Platte River Basin- Laramie Valley- Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin, Rawlins, Saratoga, Encampment, Bosler, and Laramie 907 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING IS CANCELLED... Winds are easing as the low pressure system that brought the strong winds moves into eastern Nebraska this morning. The High Wind Warning has been cancelled early. $$ WYZ106-110-116-117-240015- /O.CON.KCYS.HW.W.0052.000000T0000Z-201225T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 907 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Wind prone areas of southeast Wyoming...including Arlington...Elk Mountain...Bordeaux...Interstate 80 Summit and eastern foothills. * WHEN...Until 11 AM MST Friday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NEZ002-095-WYZ108-118-119-232100- /O.CON.KCYS.HW.W.0053.000000T0000Z-201223T2100Z/ Dawes-North Sioux-Goshen County-Central Laramie County- East Laramie County- Including the cities of Chadron, Chadron St Park, Harrison, Torrington, Cheyenne, and Pine Bluffs 907 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Goshen County, Central Laramie County and East Laramie County Counties. In Nebraska, Dawes and North Sioux Counties. * WHEN...Until 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL IMPACTS...Areas of blowing snow are also expected west of the Laramie Range. Visibilities may be reduced below a mile at times in blowing snow. Roads and highways may become slick and icy due to drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NEZ003-019>021-054-055-096-WYZ101-102-107-232100- /O.CON.KCYS.HW.W.0052.000000T0000Z-201223T2100Z/ Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County- Including the cities of Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, and Guernsey 907 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...In Wyoming, Converse County Lower Elevations, Niobrara County and East Platte County Counties. In Nebraska, Box Butte, Scotts Bluff County, Banner County, Morrill, Kimball County, Cheyenne and South Sioux Counties. * WHEN...Until 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$
636 WWUS75 KCYS 231654 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 954 AM MST Wed Dec 23 2020 NEZ002-095-WYZ108-118-119-231800- /O.CAN.KCYS.HW.W.0053.000000T0000Z-201223T2100Z/ Dawes-North Sioux-Goshen County-Central Laramie County- East Laramie County- Including the cities of Chadron, Chadron St Park, Harrison, Torrington, Cheyenne, and Pine Bluffs 954 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING IS CANCELLED... Winds continue to ease this morning and warning level winds are no longer expected. Therefore...the High Wind Warning has been cancelled early. $$ WYZ101-102-107-231800- /O.CAN.KCYS.HW.W.0052.000000T0000Z-201223T2100Z/ Converse County Lower Elevations-Niobrara County- East Platte County- Including the cities of Bill, Douglas, Deer Creek, Glenrock, Lusk, Redbird, Wheatland, and Guernsey 954 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING IS CANCELLED... Winds continue to ease this morning and warning level winds are no longer expected. Therefore...the High Wind Warning has been cancelled early. $$ WYZ106-110-116-117-240100- /O.CON.KCYS.HW.W.0052.000000T0000Z-201225T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 954 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Wind prone areas of southeast Wyoming...including Arlington...Elk Mountain...Bordeaux...Interstate 80 Summit and eastern foothills. * WHEN...Until 11 AM MST Friday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ NEZ003-019>021-054-055-096-232100- /O.CON.KCYS.HW.W.0052.000000T0000Z-201223T2100Z/ Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-South Sioux- Including the cities of Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, and Agate 954 AM MST Wed Dec 23 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Box Butte, Scotts Bluff County, Banner County, Morrill, Kimball County, Cheyenne and South Sioux Counties. * WHEN...Until 2 PM MST Wednesday. * IMPACTS...High blowover risk for lightweight and high profile vehicles. Expect travel delays and possible road closures for lightweight and high profile vehicles. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$
What forecasters said that day
The local office's own words before this high wind 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 high wind warning went out at Dec 22, 10:13 AM MST, 3 hours earlier.
Area forecast discussion, Dec 22, 10:13 AM MST, 3 hours before
Area Forecast Discussion
National Weather Service Cheyenne WY
1013 AM MST Tue Dec 22 2020
.SHORT TERM...(Today and tonight)
Issued at 349 AM MST Tue Dec 22 2020
A low pressure system in the Montana sets up the next wind event
for our region as the frontal system attached moves through this
Tuesday evening at 0Z bringing light snow showers and strong
gradients. GFS and ECMWF are in agreement on system placement and
timing. With soundings presenting large amounts of unidirectional
shear, low subsidence, tight gradients and 70+kts aloft for wind
prone areas, majority of southeastern Wyoming and the northern
Nebraska Panhandle, forecast confidence is extremely high for
strong winds at the surface; thus, a High Wind Warning is now in
effect for the Dawes and North Sioux Counties in NE, and Central Carbon County,
Upper North Platte River Basin, and the Laramie Valley. Our wind
prone areas are extended in a High Wind Warning through 11 AM MST
Friday.
A High Wind Watch is in effect for central and southern portions
of the Nebraska Panhandle until Wednesday afternoon at 21Z; this
also includes parts of Converse County, Niobrara County, and East
Platte County Counties in southeastern Wyoming.
There is potential for snow squalls west of the Laramie Range with
mountain wave activity increasing tremendously as this frontal
system moves through Tuesday evening into Wednesday morning.
Blowing snow is also a concern for the Arlington and Elk Mountain
areas along I80 which may lead to a winter weather advisory next
shift update. Snowfall accumulations are rather light especially
for this time of year ranging from 2-5 inches across our entire
area. Mountain zones may receive up to 12 inches total.
Additional with this system, our temperatures are expected to drop
at least 15-20 degrees throughout southeastern Wyoming and the
Nebraska Panhandle. Wind chills will reach single digits for areas
west of I25. Overall overcast skies and windy conditions will
continue into Wednesday.
.LONG TERM...(Wednesday through Monday)
Issued at 349 AM MST Tue Dec 22 2020
Windy conditions persist under a strong northwesterly flow aloft as
an upper level trough exits the region and a shortwave upper level
ridge builds in. Under this pattern aloft, strong gradient flow at
the surface and subsidence aloft, aided by steep lapse rates, will
continue the strong wind event along the wind prone areas of
southeast Wyoming through Friday morning. Winds will aid in bringing
warmer temperatures back to the HIgh PLains faster than they
would have rebounded otherwise, though to the west of the Laramie
Range, temperatures will remain below freezing. This combination
of winds and cold temperatures will keep blowing snow concerns in
the forecast for the week, before the shortwave ridge aloft
finally builds into the High Plain and adjacent High Terrain
Friday afternoon. Expect winds to decrease substantially as
conditions dry and skies clear. Have some fire weather concerns
for Friday and Saturday, see the fire weather discussion below.
Otherwise, the early part of the weekend will be quiet before the
next series of upper level troughs drop into the region Saturday
night and early next week, spreading another round of light snow
showers and increasing winds regionwide once more.
&&
.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1010 AM MST Tue Dec 22 2020
VFR conditons continue this morning, as it moves to MVFR through
the afternoon. Gusty winds expected for all terminals today into
tomorrow with the arrival of a cold front moving east from the
Rocky Mountains through the Great Plains. The cold front is
expected to bring some light snow beginning shortly before 00z
with wind gusts around 40-45 knots and lower ceilings. Due to the
winds, should expect some blowing snow with the event. Could see
some IFR conditions develop with the blowing snow, especially at
terminal KRWL from 6z to 11z. Will keep threats to include
mountain obscuration and isolated wind gusts of 75-80 knots with
frontal passage.
&&
.FIRE WEATHER...
Issued at 349 AM MST Tue Dec 22 2020
Winds will be strong over the next few days as a strong cold front
passes through the region today, finally exiting midday Wednesday. A
High Wind Warning has been issued to cover the wind threat this
front will bring. Humidities will be in the 20s during this period.
Snow showers will accompany the front as well, but not expecting a
wetting liquid. A ridge of high pressure aloft will build into the
region Friday and Saturday - humidity will drop to near critical at
this time, though winds will decrease as well. Another chance for
winds and light precip again next week
&&
.CYS WATCHES/WARNINGS/ADVISORIES...
WY...High Wind Warning until 2 PM MST Wednesday for WYZ104-105-108-
109-113-115-118-119.
High Wind Watch through Wednesday afternoon for WYZ101-102-107.
High Wind Warning until 11 AM MST Friday for WYZ106-110-116-117.
Winter Weather Advisory until 11 AM MST Wednesday for WYZ110-112-
114.
NE...High Wind Warning until 2 PM MST Wednesday for NEZ002-095.
High Wind Watch through Wednesday afternoon for NEZ003-019>021-
054-055-096.
&&
SHORT TERM...AW
LONG TERM...AB
AVIATION...MD
FIRE WEATHER...ABHazardous weather outlook, Dec 22, 5:02 AM MST, 8 hours 11 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 502 AM MST Tue Dec 22 2020 NEZ003-019>021-054-055-096-WYZ101-102-107-231215- Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-South Sioux- Converse County Lower Elevations-Niobrara County- East Platte County- 502 AM MST Tue Dec 22 2020 This hazardous weather outlook is for portions of south and central Nebraska Panhandle and east central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT A High Wind Watch is in effect for these areas until Wednesday afternoon at 21Z for wind gusts up to 65 MPH. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY Breezy conditions are possible until Friday afternoon but forecast confidence is low for any warnings at this time. .Spotter information statement... Spotters are encouraged to report high winds in excess of 58 mph and or sustained winds of 40 mph or higher to the National Weather Service in Cheyenne. NEZ002-095-WYZ104>106-108>110-113-115>119-231215- Dawes-North Sioux-Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Laramie Range and Southwest Platte County-Goshen County- Central Carbon County-North Snowy Range Foothills- Upper North Platte River Basin-Laramie Valley-South Laramie Range- South Laramie Range Foothills-Central Laramie County- East Laramie County- 502 AM MST Tue Dec 22 2020 This hazardous weather outlook is for portions of Dawes-North Sioux in western Nebraska Panhandle and south central Wyoming. .DAY ONE...TODAY AND TONIGHT Winds will increase across these areas with gusts up to 70 mph possible by Tuesday morning thus a High Wind Warning is in effect until Wednesday afternoon at 21Z. Wind prone areas will continue in a High Wind Warning until Friday morning at 11 AM MST. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY Strong wind gusts are possible until Friday morning at 11 AM for areas along I80 and I25 at Arlington, Elk Mountain and Bordeaux. .Spotter information statement... Spotters are encouraged to report high winds in excess of 58 mph and or sustained winds of 40 mph or higher to the National Weather Service in Cheyenne. WYZ103-111-112-114-231215- North Laramie Range-Southwest Carbon County-Sierra Madre Range- Snowy Range- 502 AM MST Tue Dec 22 2020 This hazardous weather outlook is for portions of the Sierra Madre Range and Snowy Range. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY The probability for widespread hazardous weather is low at this time. .Spotter information statement... Spotter activation will not be required. AW/AB
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 22, 3:39 AM MST | High Wind Watch | CYS | Converse, Niobrara, Platte | 10 hr |
| Dec 22, 5:55 AM MST | Winter Weather Advisory | CYS | Albany, Carbon | 27 hr |
Nearby
High Wind Warnings in Wyoming, 2020High Wind Warnings in Nebraska, 2020Every high wind 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.