Cheyenne, Wyoming

Regional Weather Alerts


     

Alert: Severe Thunderstorm Warning
Area(s): Custer, SD; Pennington, SD; Weston, WY
Effective: 2026-08-12 @ 4:07 pm -> 2026-08-12 @ 4:15 pm
Onset: 2026-08-12 @ 4:07 pm -> 2026-08-12 @ 4:15 pm
Severity: Severe
Certainty: Observed
Urgency: Immediate
Issued By: NWS Rapid City SD on 2026-08-12 @ 4:07 pm
Headline: Severe Thunderstorm Warning issued August 12 at 3:07PM MDT until August 12 at 3:15PM MDT by NWS Rapid City SD
Description: At 307 PM MDT, a severe thunderstorm was located 6 miles southwest of
Custer, moving east at 40 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.

Locations impacted include...
Custer, Pringle, Argyle, Jewel Cave National Monument, Bear
Mountain Lookout, Crazy Horse Memorial, Elk Mountain Lookout,
Sylvan Lake, Black Elk Peak and Palmer Gulch Resort.

Alert: Special Weather Statement
Area(s): Central Laramie County; East Laramie County
Effective: 2026-08-12 @ 3:47 pm -> 2026-08-12 @ 4:15 pm
Onset: 2026-08-12 @ 3:47 pm
Severity: Moderate
Certainty: Observed
Urgency: Expected
Issued By: NWS Cheyenne WY on 2026-08-12 @ 3:47 pm
Headline: Special Weather Statement issued August 12 at 2:47PM MDT by NWS Cheyenne WY
Description: At 247 PM MDT, Doppler radar was tracking a strong thunderstorm 7
miles southeast of Laramie County Fairgrounds at Archer, or 14 miles
east of Cheyenne, moving east at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.

Locations impacted include...
Carpenter.

Alert: Severe Thunderstorm Watch
Area(s): Banner, NE; Box Butte, NE; Cheyenne, NE; Dawes, NE; Kimball, NE; Morrill, NE; Scotts Bluff, NE; Sioux, NE; Goshen, WY; Laramie, WY; Niobrara, WY; Platte, WY
Effective: 2026-08-12 @ 3:33 pm -> 2026-08-12 @ 10:00 pm
Onset: 2026-08-12 @ 3:33 pm -> 2026-08-12 @ 10:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Cheyenne WY on 2026-08-12 @ 3:33 pm
Headline: Severe Thunderstorm Watch issued August 12 at 2:33PM MDT until August 12 at 9:00PM MDT by NWS Cheyenne WY
Description: THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
578 IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THE FOLLOWING AREAS

IN NEBRASKA THIS WATCH INCLUDES 8 COUNTIES

IN PANHANDLE NEBRASKA

BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX

IN WYOMING THIS WATCH INCLUDES 4 COUNTIES

IN EAST CENTRAL WYOMING

NIOBRARA

IN SOUTHEAST WYOMING

GOSHEN LARAMIE PLATTE

THIS INCLUDES THE CITIES OF AGATE, ALLIANCE, ANGORA, BAYARD,
BORDEAUX, BRIDGEPORT, BROWNSON, CHADRON, CHADRON ST PARK,
CHEYENNE, GERING, GUERNSEY, HARRISBURG, HARRISON, HEMINGFORD,
KIMBALL, LUSK, REDBIRD, REDINGTON, SCOTTSBLUFF, SIDNEY,
TORRINGTON, AND WHEATLAND.

Alert: Severe Thunderstorm Watch
Area(s): Bennett, SD; Butte, SD; Custer, SD; Fall River, SD; Haakon, SD; Harding, SD; Jackson, SD; Lawrence, SD; Meade, SD; Oglala Lakota, SD; Pennington, SD; Perkins, SD; Ziebach, SD; Crook, WY; Weston, WY
Effective: 2026-08-12 @ 2:06 pm -> 2026-08-12 @ 9:00 pm
Onset: 2026-08-12 @ 2:06 pm -> 2026-08-12 @ 9:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Rapid City SD on 2026-08-12 @ 2:06 pm
Headline: Severe Thunderstorm Watch issued August 12 at 1:06PM MDT until August 12 at 8:00PM MDT by NWS Rapid City SD
Description: THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
576 IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR THE FOLLOWING AREAS

IN SOUTH DAKOTA THIS WATCH INCLUDES 13 COUNTIES

IN NORTHWEST SOUTH DAKOTA

BUTTE HARDING PERKINS

IN SOUTHWEST SOUTH DAKOTA

BENNETT CUSTER FALL RIVER
JACKSON OGLALA LAKOTA

IN WEST CENTRAL SOUTH DAKOTA

HAAKON LAWRENCE MEADE
PENNINGTON ZIEBACH

IN WYOMING THIS WATCH INCLUDES 2 COUNTIES

IN NORTHEAST WYOMING

CROOK WESTON

THIS INCLUDES THE CITIES OF ALLEN, BILLSBURG, BISON, BUCKHORN,
BUFFALO, CLARETON, CUSTER, DEADWOOD, DOWNTOWN BELLE FOURCHE,
DOWNTOWN NEWCASTLE, DUPREE, EDGEMONT, FAITH, FOUR CORNERS,
HERMOSA, HILL CITY, HOT SPRINGS, KADOKA, KIRLEY, KYLE,
LACREEK WILDLIFE REFUGE, LEAD, LEMMON, MARTIN, MILESVILLE,
MOORCROFT, MORRISEY, OGLALA, PHILIP, PINE RIDGE, RAPID CITY,
ROCHELLE, SPEARFISH, STURGIS, SUNDANCE, TUTHILL, UNION CENTER,
UPTON, AND WALL.

THIS INCLUDES THE TRIBAL LANDS OF THE CHEYENNE RIVER RESERVATION
AND THE PINE RIDGE RESERVATION.