Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Johnson, WY |
| Effective: | 2026-06-20 @ 5:29 pm -> 2026-06-20 @ 6:15 pm |
| Onset: | 2026-06-20 @ 5:29 pm -> 2026-06-20 @ 6:15 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Riverton WY on 2026-06-20 @ 5:29 pm |
| Headline: | Severe Thunderstorm Warning issued June 20 at 4:29PM MDT until June 20 at 5:15PM MDT by NWS Riverton WY |
| Description: |
SVRRIW The National Weather Service in Riverton has issued a * Severe Thunderstorm Warning for... Johnson County in north central Wyoming... * Until 515 PM MDT. * At 427 PM MDT, a severe thunderstorm was located 10 miles northeast of Mayoworth, which is 17 miles north of Kaycee, moving northeast at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * This severe thunderstorm will remain over mainly rural areas of Johnson County, including the following locations... South Fork Campground, Sussex, Buffalo Johnson County Airport, Lost Cabin Campground, and Johnson County Fairgrounds. This includes the following highways... Interstate 25 between mile markers 257 and 299. Interstate 90 between mile markers 42 and 95. |
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Natrona, WY |
| Effective: | 2026-06-20 @ 5:21 pm -> 2026-06-20 @ 5:31 pm |
| Onset: | 2026-06-20 @ 5:21 pm -> 2026-06-20 @ 5:30 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Riverton WY on 2026-06-20 @ 5:21 pm |
| Headline: | Severe Thunderstorm Warning issued June 20 at 4:21PM MDT until June 20 at 4:30PM MDT by NWS Riverton WY |
| Description: |
The storms which prompted the warning have moved out of the area. Therefore, the warning will be allowed to expire. However, gusty winds are still possible with these thunderstorms. A Severe Thunderstorm Watch remains in effect until 900 PM MDT for central Wyoming. Remember, a Severe Thunderstorm Warning still remains in effect for northeast Natrona County. |
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Big Horn, WY; Johnson, WY; Washakie, WY |
| Effective: | 2026-06-20 @ 5:14 pm -> 2026-06-20 @ 6:00 pm |
| Onset: | 2026-06-20 @ 5:14 pm -> 2026-06-20 @ 6:00 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Riverton WY on 2026-06-20 @ 5:14 pm |
| Headline: | Severe Thunderstorm Warning issued June 20 at 4:14PM MDT until June 20 at 5:00PM MDT by NWS Riverton WY |
| Description: |
SVRRIW The National Weather Service in Riverton has issued a * Severe Thunderstorm Warning for... Northwestern Johnson County in north central Wyoming... Southeastern Big Horn County in central Wyoming... Northeastern Washakie County in central Wyoming... * Until 500 PM MDT. * At 412 PM MDT, a severe thunderstorm was located near Ten Sleep, moving northeast at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Cloud Peak. |
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Campbell, WY; Weston, WY |
| Effective: | 2026-06-20 @ 5:14 pm -> 2026-06-20 @ 6:15 pm |
| Onset: | 2026-06-20 @ 5:14 pm -> 2026-06-20 @ 6:15 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Rapid City SD on 2026-06-20 @ 5:14 pm |
| Headline: | Severe Thunderstorm Warning issued June 20 at 4:14PM MDT until June 20 at 5:15PM MDT by NWS Rapid City SD |
| Description: |
SVRUNR The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Southern Campbell County in northeastern Wyoming... Southwestern Weston County in northeastern Wyoming... * Until 515 PM MDT. * At 414 PM MDT, severe thunderstorms were located along a line from 48 miles west of Pumpkin Buttes to 41 miles south of NARM Mine, or along a line from 33 miles southwest of Wright to 56 miles south of Wright, moving northeast at 40 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Wright, Reno Junction, Hilight Gas Plant, Black Thunder Mine, Coal Creek Mine, NARM Mine North, Cordero Rojo Mine, NARM Mine, Savageton, Pine Tree Junction, Rochelle and Pumpkin Buttes. This includes Interstate 90 in Wyoming between Mile Markers 97 and 109. |
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Albany, WY; Carbon, WY; Converse, WY |
| Effective: | 2026-06-20 @ 4:54 pm -> 2026-06-20 @ 5:30 pm |
| Onset: | 2026-06-20 @ 4:54 pm -> 2026-06-20 @ 5:30 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Cheyenne WY on 2026-06-20 @ 4:54 pm |
| Headline: | Severe Thunderstorm Warning issued June 20 at 3:54PM MDT until June 20 at 4:30PM MDT by NWS Cheyenne WY |
| Description: |
At 354 PM MDT, severe thunderstorms were located along a line extending from 9 miles east of Shirley Basin to 9 miles east of Battle Mountain to Medicine Bow, moving east at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Medicine Bow, Rock River, Shirley Basin, Wheatland Reservoir Number 3, Boxelder, Curtis Gulch Campground, and Campbell Creek Campground. |
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Converse, WY |
| Effective: | 2026-06-20 @ 4:49 pm -> 2026-06-20 @ 5:45 pm |
| Onset: | 2026-06-20 @ 4:49 pm -> 2026-06-20 @ 5:45 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Cheyenne WY on 2026-06-20 @ 4:49 pm |
| Headline: | Severe Thunderstorm Warning issued June 20 at 3:49PM MDT until June 20 at 4:45PM MDT by NWS Cheyenne WY |
| Description: |
SVRCYS The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Western Converse County in east central Wyoming... * Until 445 PM MDT. * At 349 PM MDT, severe thunderstorms were located along a line extending from near Antelope Hills to 6 miles east of Evansville to 12 miles west of Boxelder, moving northeast at 30 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Glenrock, Rolling Hills, Laprele Reservoir, Deer Creek, and Boxelder. This includes Interstate 25 in Wyoming between mile markers 146 and 174. |
| Alert: | Severe Thunderstorm Warning |
| Area(s): | Johnson, WY; Natrona, WY |
| Effective: | 2026-06-20 @ 4:46 pm -> 2026-06-20 @ 5:30 pm |
| Onset: | 2026-06-20 @ 4:46 pm -> 2026-06-20 @ 5:30 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Immediate |
| Issued By: | NWS Riverton WY on 2026-06-20 @ 4:46 pm |
| Headline: | Severe Thunderstorm Warning issued June 20 at 3:46PM MDT until June 20 at 4:30PM MDT by NWS Riverton WY |
| Description: |
SVRRIW The National Weather Service in Riverton has issued a * Severe Thunderstorm Warning for... Northeastern Natrona County in central Wyoming... Johnson County in north central Wyoming... * Until 430 PM MDT. * At 346 PM MDT, a severe thunderstorm was located 13 miles northwest of Red Wall, which is 26 miles southwest of Kaycee, moving northeast at 40 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * This severe thunderstorm will remain over mainly rural areas of northeastern Natrona and Johnson Counties, including the following locations... South Fork Campground, Sussex, Lost Cabin Campground, and Barnum. This includes Interstate 25 between mile markers 218 and 289. |
| Alert: | Severe Thunderstorm Watch |
| Area(s): | Box Butte, NE; Dawes, NE; Scotts Bluff, NE; Sioux, NE; Albany, WY; Carbon, WY; Converse, WY; Goshen, WY; Laramie, WY; Niobrara, WY; Platte, WY |
| Effective: | 2026-06-20 @ 2:50 pm -> 2026-06-20 @ 10:00 pm |
| Onset: | 2026-06-20 @ 2:50 pm -> 2026-06-20 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-06-20 @ 2:50 pm |
| Headline: | Severe Thunderstorm Watch issued June 20 at 1:50PM MDT until June 20 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
SEVERE THUNDERSTORM WATCH 356 REMAINS VALID UNTIL 9 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN NEBRASKA THIS WATCH INCLUDES 4 COUNTIES IN PANHANDLE NEBRASKA BOX BUTTE DAWES SCOTTS BLUFF SIOUX IN WYOMING THIS WATCH INCLUDES 7 COUNTIES IN EAST CENTRAL WYOMING CONVERSE NIOBRARA IN SOUTH CENTRAL WYOMING CARBON IN SOUTHEAST WYOMING ALBANY GOSHEN LARAMIE PLATTE THIS INCLUDES THE CITIES OF AGATE, ALLIANCE, BILL, BORDEAUX, BOSLER, CHADRON, CHADRON ST PARK, CHEYENNE, DEER CREEK, DOUGLAS, GERING, GLENROCK, GUERNSEY, HARRISON, HEMINGFORD, LARAMIE, LUSK, RAWLINS, REDBIRD, SCOTTSBLUFF, TORRINGTON, AND WHEATLAND. |
| Alert: | Severe Thunderstorm Watch |
| Area(s): | Fremont, WY; Hot Springs, WY; Johnson, WY; Natrona, WY; Sweetwater, WY; Washakie, WY |
| Effective: | 2026-06-20 @ 2:28 pm -> 2026-06-20 @ 10:00 pm |
| Onset: | 2026-06-20 @ 2:28 pm -> 2026-06-20 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Riverton WY on 2026-06-20 @ 2:28 pm |
| Headline: | Severe Thunderstorm Watch issued June 20 at 1:28PM MDT until June 20 at 9:00PM MDT by NWS Riverton WY |
| Description: |
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 356 IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN WYOMING THIS WATCH INCLUDES 6 COUNTIES IN CENTRAL WYOMING FREMONT HOT SPRINGS NATRONA IN NORTH CENTRAL WYOMING JOHNSON WASHAKIE IN SOUTH CENTRAL WYOMING SWEETWATER THIS INCLUDES THE CITIES OF BUFFALO, CASPER, DUBOIS, GREEN RIVER, KAYCEE, LANDER, RIVERTON, ROCK SPRINGS, THERMOPOLIS, AND WORLAND. |
| Alert: | Severe Thunderstorm Watch |
| Area(s): | Fall River, SD; Campbell, WY; Weston, WY |
| Effective: | 2026-06-20 @ 2:27 pm -> 2026-06-20 @ 10:00 pm |
| Onset: | 2026-06-20 @ 2:27 pm -> 2026-06-20 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Rapid City SD on 2026-06-20 @ 2:27 pm |
| Headline: | Severe Thunderstorm Watch issued June 20 at 1:27PM MDT until June 20 at 9:00PM MDT by NWS Rapid City SD |
| Description: |
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 356 IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN SOUTH DAKOTA THIS WATCH INCLUDES 1 COUNTY IN SOUTHWEST SOUTH DAKOTA FALL RIVER IN WYOMING THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST WYOMING CAMPBELL WESTON THIS INCLUDES THE CITIES OF BUCKHORN, CLARETON, DOWNTOWN NEWCASTLE, EDGEMONT, FOUR CORNERS, GILLETTE, HOT SPRINGS, MORRISEY, ROCHELLE, UPTON, AND WRIGHT. |