Strong storms impacted southeast Wyoming the afternoon of June 16th. Storms produced hail and strong winds.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CYS wrote it up.
Strong storms impacted southeast Wyoming the afternoon of June 16th. Storms produced hail and strong winds.
The local office's own words before the first event, 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 the first event at Jul 16, 11:57 AM MST, 4 hours 31 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Cheyenne WY Issued by National Weather Service Rapid City SD 1257 PM MDT Wed Jul 16 2025 .KEY MESSAGES... - Scattered strong to severe thunderstorms are expected Wednesday afternoon and evening in southeast Wyoming and southwest Nebraska. Large hail is the primary threat, but all severe weather hazards are possible. - Warmer temperatures and isolated to scattered late day showers and thunderstorms will occur for Thursday through early next week. && .SHORT TERM /THROUGH THURSDAY/... Issued at 1248 PM MDT Wed Jul 16 2025 Current satellite imagery shows low stratus covering areas east of the Laramie Range. Satellite also shows some gradual clearing within the stratus, which will likely lead to destabilization later this afternoon. Low stratus from weak southerly and easterly flow will provide ample moisture for storms. A sharp dryline along the Laramie Range, as well as a weak disturbance aloft will provide the needed lift for storms to initiate later today. Hi-Res guidance still shows an active afternoon and evening, mainly across southeast Wyoming where storms have the greatest potential to be severe. GFS soundings show a strongly capped Nebraska panhandle through the afternoon, which will help limit both storm development and strong storms. By mid- afternoon, the capping inversion along the Interstate 25 corridor will be eroded. This is likely around the time when stronger storms will start to develop. Model soundings along the Interstate 25 corridor do show an environment favorable for severe weather. MUCAPE values are around 1400 J/kg with effective shear values around 40 kts. This lends itself to a severe hail threat, as well as the more discrete cells models are showing. DCAPE values are around 1000 J/kg west of the Laramie Range where it is drier and sunnier. These areas could see some severe wind gusts with storms. Cannot rule out an isolated tornado this afternoon with elevated SFC-3km SRH and effective shear values. Heavy rain is also expected in storms with PWATs above the 90th percentile for climatology. Luckily, storms appear to be quick moving this afternoon, however, multiple rounds of storms as suggested by some models could lead to localized flash flooding. Strongest storms should end by about 8 PM with some lingering showers and storms possible through midnight. Quieter weather is expected for Thursday. Southerly flow and residual moisture from storms will likely lead to another round of low stratus during the morning hours. However, zonal flow aloft will help dry out the mid-levels and clear clouds out by the afternoon. Storms will still be possible during the afternoon hours from a weak disturbance aloft, however, coverage and intensity of storms will be much lower than today. && .LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/... Issued at 344 AM MDT Wed Jul 16 2025 A zonal flow pattern will take over aloft on Thursday and dominate much of the northern half of the CONUS into the weekend. Drier westerly flow aloft will reduce the risk for storms on Thursday, but isolated thunderstorms will still be possible, mainly along the I-80 corridor. Monsoon moisture will be pulled into the flow on Friday, causing perceptible water and mid-level moisture in general to recover. While mid to upper level moisture should improve for Friday, the dryline is expected to be positioned further east, resulting in fairly steady precipitable water Thursday into Friday. Expect to see some high-based showers and thunderstorms with gusty winds possible on Friday along with warm to hot temperatures. Ensembles indicate that the dryline will move back to the west on Saturday while decent mid to upper level monsoon moisture remains in place. Expect this to then bring the highest chance for more widespread shower and thunderstorm coverage of the long term period. For Sunday through Tuesday or so, expect decent monsoon moisture to remain in place aloft, but we may lose the boundary layer moisture for several days, leading to more isolated PM thunderstorm activity each of those days. Additionally, an upper level trough digging into the northwest will amplify the downstream ridge over the central plains, leading to another warm trend to carry through the middle part of next week. && .AVIATION /18Z TAFS THROUGH 18Z THURSDAY/... Issued at 1050 AM MDT Wed Jul 16 2025 Low stratus continues for areas east of the Laramie Range late this morning. Low CIGs will likely burn off early this afternoon, allowing destabilization for storms to form. The main aviation concern this afternoon will be strong to severe storms with heavy rain. Moderate to heavy rain will likely lead to visibility drops in any storms passing over a terminal. MVFR to IFR visibility will be possible in heavy rain. Strong, gusty winds and large hail will also be possible in storms this afternoon and evening. More low stratus will build in late tonight and continue through Thursday morning. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...None. NE...None. && SHORT TERM...SF LONG TERM... AVIATION...SF
Hazardous Weather Outlook National Weather Service Cheyenne WY Issued by National Weather Service Rapid City SD 102 PM MDT Wed Jul 16 2025 NEZ002-003-019>021-054-055-095-096-WYZ101>119-171915- 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-Niobrara County- North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Laramie Range and Southwest Platte County- East Platte County-Goshen 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-East Laramie County- 102 PM MDT Wed Jul 16 2025 This hazardous weather outlook is for portions of panhandle Nebraska...east central Wyoming...south central Wyoming and southeast Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT - Scattered strong to severe thunderstorms are expected this afternoon and evening in southeast Wyoming and southwest Nebraska. Large hail is the primary threat, but all severe weather hazards are possible. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY - Warmer temperatures and isolated to scattered late day showers and thunderstorms will occur for Thursday through early next week. .Spotter information statement... Spotters are encouraged to report severe weather to the National Weather Service in Cheyenne.
Special Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
314 PM MDT Wed Jul 16 2025
WYZ110-114>116-162145-
South Laramie Range WY-North Snowy Range Foothills WY-
Laramie Valley WY-Snowy Range WY-
314 PM MDT Wed Jul 16 2025
...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN CARBON AND SOUTHERN
ALBANY COUNTIES THROUGH 345 PM MDT...
At 314 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles northwest of Bosler to 7 miles
northwest of Antelope Buttes to 3 miles northeast of Platte River
Wilderness. Movement was east at 35 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Laramie, Albany, West Laramie, Antelope Buttes, Nine Mile, Rogers
Canyon, Bosler, Pelton Creek Campground, Woods Landing-Jelm, Rambler,
Platte River Wilderness, Keystone, Wold, Laramie Regional Airport,
Rob Roy Reservoir, The Buttes, Lake Owen, Bobbie Thompson Campground,
Hutton Lake, and Yellow Pine Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
southeastern Wyoming.
&&
LAT...LON 4100 10611 4108 10646 4144 10606 4173 10585
4174 10560 4170 10561 4170 10555 4165 10553
4171 10543 4168 10535 4161 10531 4155 10531
4151 10528 4130 10530 4099 10576
TIME...MOT...LOC 2114Z 280DEG 31KT 4169 10577 4146 10574 4111 10632
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
SherburnSpecial Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
358 PM MDT Wed Jul 16 2025
WYZ106-114>118-162230-
South Laramie Range WY-
Central Laramie Range and Southwest Platte County WY-
Central Laramie County WY-South Laramie Range Foothills WY-
Laramie Valley WY-Snowy Range WY-
358 PM MDT Wed Jul 16 2025
...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN ALBANY AND
NORTHWESTERN LARAMIE COUNTIES THROUGH 430 PM MDT...
At 357 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles east of Baldy Peak to 2 miles southeast
of University Of Wyoming War Memorial Stadium to 9 miles southeast of
Woods Landing-Jelm. Movement was east at 30 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Laramie, West Laramie, Federal, Table Mountain Ranches, Antelope
Buttes, Nine Mile, Rogers Canyon, Boulder Ridge, Tie Siding, Pumpkin
Vine, Vedauwoo Campground, North Crow Campground, Ames Monument,
Horse Creek, Laramie Regional Airport, The Buttes, Curt Gowdy State
Park, Hutton Lake, Yellow Pine Campground, and Tie City Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
southeastern Wyoming.
&&
LAT...LON 4130 10574 4161 10545 4162 10489 4126 10507
4100 10528 4099 10600
TIME...MOT...LOC 2157Z 272DEG 27KT 4154 10531 4128 10555 4101 10588
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
SherburnSpecial Weather Statement National Weather Service Cheyenne WY Issued by National Weather Service Rapid City SD 424 PM MDT Wed Jul 16 2025 WYZ103-106-162300- Central Laramie Range and Southwest Platte County WY- North Laramie Range WY- 424 PM MDT Wed Jul 16 2025 ...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ALBANY AND WEST CENTRAL PLATTE COUNTIES THROUGH 500 PM MDT... At 424 PM MDT, Doppler radar was tracking a strong thunderstorm 11 miles west of Westview Circle, or 17 miles west of Wheatland, moving southeast at 20 mph. HAZARD...Penny size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vegetation is possible. Locations impacted include... Westview Circle. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for southeastern Wyoming. && LAT...LON 4206 10538 4212 10532 4206 10507 4192 10524 TIME...MOT...LOC 2224Z 296DEG 17KT 4207 10530 MAX HAIL SIZE...0.75 IN MAX WIND GUST...<30 MPH Sherburn
Special Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
433 PM MDT Wed Jul 16 2025
WYZ105-162300-
Shirley Basin WY-
433 PM MDT Wed Jul 16 2025
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN CARBON AND NORTH
CENTRAL ALBANY COUNTIES THROUGH 500 PM MDT...
At 432 PM MDT, Doppler radar was tracking a strong thunderstorm 5
miles north of Battle Mountain, or 46 miles south of Casper, moving
northeast at 25 mph.
HAZARD...Nickel size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
This storm will remain over mainly rural areas of northeastern Carbon
and north central Albany Counties, well north of Medicine Bow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
southeastern Wyoming.
&&
LAT...LON 4233 10590 4231 10588 4230 10589 4230 10587
4229 10588 4228 10585 4212 10617 4214 10625
4217 10626 4238 10615
TIME...MOT...LOC 2232Z 221DEG 23KT 4218 10618
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH
SherburnSpecial Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
436 PM MDT Wed Jul 16 2025
WYZ116>118-162330-
South Laramie Range WY-Central Laramie County WY-
South Laramie Range Foothills WY-
436 PM MDT Wed Jul 16 2025
...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN ALBANY AND WESTERN
LARAMIE COUNTIES THROUGH 530 PM MDT...
At 436 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 5 miles northwest of Whitaker to near North
Crow Campground to near Boulder Ridge. Movement was 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...
Cheyenne, Happy Valley, Federal, Table Mountain Ranches, Willadsen
Estates, Rocking Star Ranch, Silver Sage Estates, Granite Canon, Tie
Siding, Fox Farm-College, Cheyenne Regional Airport, Pumpkin Vine,
Winchester Hills, Vedauwoo Campground, North Crow Campground,
Ranchettes, Warren AFB, Frontier Park, North Cheyenne, and Ames
Monument.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
southeastern Wyoming.
&&
LAT...LON 4128 10534 4156 10486 4156 10444 4153 10446
4150 10452 4150 10449 4100 10485 4100 10564
TIME...MOT...LOC 2236Z 284DEG 14KT 4148 10495 4121 10528 4100 10561
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH
SherburnSpecial Weather Statement National Weather Service Cheyenne WY Issued by National Weather Service Rapid City SD 519 PM MDT Wed Jul 16 2025 WYZ103-105-162345- Shirley Basin WY-North Laramie Range WY- 519 PM MDT Wed Jul 16 2025 ...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL ALBANY AND SOUTH CENTRAL CONVERSE COUNTIES THROUGH 545 PM MDT... At 518 PM MDT, Doppler radar was tracking a strong thunderstorm 6 miles south of Campbell Creek Campground, or 35 miles southwest of Douglas, moving east at 25 mph. HAZARD...Half inch hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vegetation is possible. This storm will remain over mainly rural areas of north central Albany and south central Converse Counties to the northwest of Garrett. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for southeastern Wyoming. && LAT...LON 4229 10598 4238 10601 4249 10567 4231 10560 TIME...MOT...LOC 2318Z 249DEG 23KT 4236 10585 MAX HAIL SIZE...0.50 IN MAX WIND GUST...<30 MPH Sherburn
The national radar mosaic for the moment the first event began.
2 thunderstorm wind. Local standard time, as filed.
NWS Employee estimates 60 mph gusts in Cheyenne.
NWS Employee reporting several 2 to 3 inch thick branches snapped off of live tree.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2025Every state in 2025This day in weather historyWarnings in Wyoming, July 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1264521, 1264522.