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Home Return to list Freeze Warning 0001 Issued by the Cheyenne Forecast Office
Action: New Issued At: 2026-05-17 13:22:54 320 WWUS75 KCYS 171822 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1222 PM MDT Sun May 17 2026 WYZ102-181200- /O.NEW.KCYS.FZ.W.0001.260518T1100Z-260518T1600Z/ /O.NEW.KCYS.FZ.A.0001.260519T0600Z-260519T1600Z/ Niobrara County- Including the cities of Lusk and Redbird 1222 PM MDT Sun May 17 2026 ...FREEZE WARNING IN EFFECT FROM 5 AM TO 10 AM MDT MONDAY... ...FREEZE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... * WHAT...For the Freeze Warning tonight, sub-freezing temperatures as low as 26 expected. For the Freeze Watch tomorrow night, sub-freezing temperatures as low as 22 possible. * WHERE...Niobrara County. * WHEN...For the Freeze Warning, from 5 AM to 10 AM MDT Monday. For the Freeze Watch, from late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ WYZ104-105-109>111-181200- /O.NEW.KCYS.FZ.A.0001.260519T0300Z-260519T1600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin-Central Carbon County-North Snowy Range Foothills-Southwest Carbon County- Including the cities of Baggs, Seminoe Dam, Medicine Bow, Elk Mountain, Arlington, Rawlins, and Shirley Basin 1222 PM MDT Sun May 17 2026 ...FREEZE WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 15 possible. * WHERE...Central Carbon County, Ferris/Seminoe/Shirley Mountains, North Snowy Range Foothills, Shirley Basin, and Southwest Carbon County. * WHEN...From Monday evening through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NEZ002-003-019>021-054-055-095-096-WYZ101-106>108-113-115>119-181200- /O.NEW.KCYS.FZ.A.0001.260519T0600Z-260519T1600Z/ Dawes County-Box Butte County-Scotts Bluff County-Banner County- Morrill County-Kimball County-Cheyenne County-Northern Sioux County-Southern Sioux County-Converse County Lower Elevations- Central Laramie Range and Southwest Platte County-East Platte County-Goshen County-Upper North Platte River Basin-Laramie Valley-South Laramie Range-South Laramie Range Foothills-Central Laramie County-East Laramie County- Including the cities of Federal, Bordeaux, Torrington, Chadron, Agate, Hemingford, Whitaker, Scottsbluff, Pumpkin Vine, Glenrock, Gering, Pine Bluffs, Bayard, Brownson, Buford, Bridgeport, Laramie, Bill, Horse Creek, Vedauwoo, Kimball, Harrison, Saratoga, Chadron St Park, Alliance, Encampment, Wheatland, Bosler, Redington, Cheyenne, Deer Creek, Douglas, Angora, Harrisburg, Guernsey, and Sidney 1222 PM MDT Sun May 17 2026 ...FREEZE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 18 possible. * WHERE...Portions of the panhandle of Nebraska and east central, south central, and southeast Wyoming. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CG Action: Continued Issued At: 2026-05-18 02:15:47 885 WWUS75 KCYS 180715 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 115 AM MDT Mon May 18 2026 WYZ102-182230- /O.UPG.KCYS.FZ.A.0001.260519T0600Z-260519T1600Z/ /O.NEW.KCYS.FZ.W.0002.260519T0200Z-260519T1600Z/ /O.CON.KCYS.FZ.W.0001.260518T1100Z-260518T1600Z/ Niobrara County- Including the cities of Redbird and Lusk 115 AM MDT Mon May 18 2026 ...FREEZE WARNING REMAINS IN EFFECT FROM 5 AM TO 10 AM MDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MDT TUESDAY... * WHAT...For the Freeze Warning early this morning, sub-freezing temperatures as low as 26 expected. For the Freeze Warning tomorrow night, sub-freezing temperatures as low as 22 possible. * WHERE...Niobrara County. * WHEN...For the first Freeze Warning, from 5 AM to 10 AM MDT this morning. For the second Freeze Warning, from 8 PM this evening to 10 AM MDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NEZ019-095-096-WYZ101-107-108-182230- /O.UPG.KCYS.FZ.A.0001.260519T0600Z-260519T1600Z/ /O.NEW.KCYS.FZ.W.0002.260519T0200Z-260519T1600Z/ Scotts Bluff County-Northern Sioux County-Southern Sioux County- Converse County Lower Elevations-East Platte County-Goshen County- Including the cities of Scottsbluff, Wheatland, Glenrock, Gering, Agate, Torrington, Bill, Deer Creek, Guernsey, Douglas, and Harrison 115 AM MDT Mon May 18 2026 ...FREEZE WARNING IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MDT TUESDAY... * WHAT...Sub-freezing temperatures as low as 21 expected. * WHERE...Portions of the panhandle of Nebraska, and east central and southeast Wyoming. * WHEN...From 8 PM this evening to 10 AM MDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ WYZ104-105-109>111-182230- /O.CON.KCYS.FZ.A.0001.260519T0300Z-260519T1600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin-Central Carbon County-North Snowy Range Foothills-Southwest Carbon County- Including the cities of Elk Mountain, Arlington, Medicine Bow, Shirley Basin, Baggs, Seminoe Dam, and Rawlins 115 AM MDT Mon May 18 2026 ...FREEZE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 15 possible. * WHERE...Central Carbon County, Ferris/Seminoe/Shirley Mountains, North Snowy Range Foothills, Shirley Basin, and Southwest Carbon County. * WHEN...From this evening through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NEZ002-003-020-021-054-055-WYZ106-113-115>119-182230- /O.CON.KCYS.FZ.A.0001.260519T0600Z-260519T1600Z/ Dawes County-Box Butte County-Banner County-Morrill County- Kimball County-Cheyenne County-Central Laramie Range and Southwest Platte County-Upper North Platte River Basin-Laramie Valley-South Laramie Range-South Laramie Range Foothills-Central Laramie County-East Laramie County- Including the cities of Bridgeport, Chadron St Park, Bordeaux, Horse Creek, Bosler, Federal, Redington, Whitaker, Saratoga, Laramie, Buford, Pine Bluffs, Hemingford, Vedauwoo, Sidney, Alliance, Brownson, Angora, Cheyenne, Kimball, Harrisburg, Chadron, Bayard, Encampment, and Pumpkin Vine 115 AM MDT Mon May 18 2026 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 16 possible. * WHERE...Portions of panhandle Nebraska and south central and southeast Wyoming. * WHEN...From late tonight through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Trudel Action: Expired Issued At: 2026-05-18 10:33:46 872 WWUS75 KCYS 181533 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 933 AM MDT Mon May 18 2026 WYZ102-182200- /O.EXP.KCYS.FZ.W.0001.000000T0000Z-260518T1600Z/ /O.CON.KCYS.FZ.W.0002.260519T0200Z-260519T1600Z/ Niobrara County- Including the cities of Redbird and Lusk 933 AM MDT Mon May 18 2026 ...FREEZE WARNING WILL EXPIRE AT 10 AM MDT THIS MORNING... ...FREEZE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MDT TUESDAY... * WHAT...For the Freeze Warning tomorrow night, sub-freezing temperatures as low as 22 possible. * WHERE...Niobrara County. * WHEN...From 8 PM this evening to 10 AM MDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NEZ019-095-096-WYZ101-107-108-182200- /O.CON.KCYS.FZ.W.0002.260519T0200Z-260519T1600Z/ Scotts Bluff County-Northern Sioux County-Southern Sioux County- Converse County Lower Elevations-East Platte County-Goshen County- Including the cities of Gering, Glenrock, Wheatland, Scottsbluff, Torrington, Deer Creek, Harrison, Bill, Douglas, Agate, and Guernsey 933 AM MDT Mon May 18 2026 ...FREEZE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 10 AM MDT TUESDAY... * WHAT...Sub-freezing temperatures as low as 20 expected. * WHERE...Portions of the panhandle of Nebraska, and east central and southeast Wyoming. * WHEN...From 8 PM this evening to 10 AM MDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ WYZ104-105-109>111-182200- /O.CON.KCYS.FZ.A.0001.260519T0300Z-260519T1600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin-Central Carbon County-North Snowy Range Foothills-Southwest Carbon County- Including the cities of Medicine Bow, Rawlins, Elk Mountain, Arlington, Shirley Basin, Seminoe Dam, and Baggs 933 AM MDT Mon May 18 2026 ...FREEZE WATCH REMAINS IN EFFECT FROM 9 PM MDT THIS EVENING THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 15 possible. * WHERE...Central Carbon County, Ferris/Seminoe/Shirley Mountains, North Snowy Range Foothills, Shirley Basin, and Southwest Carbon County. * WHEN...From 9 PM MDT this evening through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NEZ002-003-020-021-054-055-WYZ106-113-115>119-182200- /O.CON.KCYS.FZ.A.0001.260519T0600Z-260519T1600Z/ Dawes County-Box Butte County-Banner County-Morrill County- Kimball County-Cheyenne County-Central Laramie Range and Southwest Platte County-Upper North Platte River Basin-Laramie Valley-South Laramie Range-South Laramie Range Foothills-Central Laramie County-East Laramie County- Including the cities of Harrisburg, Vedauwoo, Federal, Hemingford, Pumpkin Vine, Laramie, Bordeaux, Alliance, Brownson, Horse Creek, Bayard, Sidney, Encampment, Kimball, Cheyenne, Bridgeport, Pine Bluffs, Buford, Redington, Angora, Chadron, Whitaker, Bosler, Chadron St Park, and Saratoga 933 AM MDT Mon May 18 2026 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... * WHAT...Sub-freezing temperatures as low as 16 possible. * WHERE...Portions of panhandle Nebraska and south central and southeast Wyoming. * WHEN...From late tonight through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CG | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||