Isolated wind gust reported in Scottsbluff causing some roof damage to KNEB.
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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.
Isolated wind gust reported in Scottsbluff causing some roof damage to KNEB.
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 May 24, 2:42 PM MST, 1 hour 3 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Cheyenne WY 342 PM MDT Sat May 24 2025 .KEY MESSAGES... - Marginal Risk (Level 1 of 5) for portions of southeast Wyoming and western Nebraska continues today, with hail and winds the primary hazards, though a very isolated tornado cannot be ruled out primarily in Wyoming. - Unsettled weather expected to continue this weekend through next week with daily chances for showers and thunderstorms. Temperatures will be near or slightly below average for late May. && .SHORT TERM /THROUGH SUNDAY/... Issued at 236 PM MDT Sat May 24 2025 Thunderstorms are ongoing across the CWA this afternoon in a marginally favorable environment for stronger to severe weather. Low-level stratus has helped to limit daytime heating, but mesoanalysis of the region indicates bulk effective shear of around 45-60 knots and MUCAPE of 500-1500 J/kg, allowing this activity to remain fairly stout as it develops around the Laramie Range. But with the clustery nature of this activity alongside a lack of stronger and more discrete forcing, most of this will continue to remain sub-severe through this evening with weakening into the nighttime hours and becoming mostly rainfall. On the note of rainfall, there is a marginal risk of localized flooding as well as these storms train across the region under an environment composed of PWAT values around 125-150% of normal. A flood advisory was already needed earlier for Banner County, NE, and with the highest moisture values for our CWA in the Nebraska Panhandle, this region will be the most likely for continued risk of flooding. Moving into Sunday, moisture remains elevated across the region and another round of low ceilings and mist or fog will be possible for the morning hours primarily along and east of the I-25 corridor. Thunderstorms will be possible once again during the day but any lingering severe potential will finally shift to our south with another bout of widespread rainfall and general thunderstorms expected for the day. This could once again promote a flooding threat however, and two-day QPF totals are sitting between 0.5-2.0 inches for areas along and east of the Laramie Range with locally heavier amounts possible for locations that receive training storms/rainfall. Once again activity should wane and and move eastwards into Nebraska through the nighttime hours, but ongoing showers, particularly for the Nebraska Panhandle, will be possible as we begin Memorial Day. && .LONG TERM /MONDAY THROUGH FRIDAY/... Issued at 236 PM MDT Sat May 24 2025 The long term remains active through the middle of the week as daily showers and thunderstorms continue to impact the CWA. At the upper levels, a broad trough will continue to slowly progress eastwards through the period while a ridge of high pressure will try and take control of the Western US through the end of the period, though a weak low off the California coast moving into the Baja Peninsula will limit the strength of this ridge. At the surface, low pressure in the Southern Plains on Monday will evolve eastwards through the weak, but a weak lingering stalled boundary and some small disturbances will continue to to move across our area all the way through the end of the week. Under this pattern we should see moisture allowing for daily precipitation through Wednesday before drier air begins to move in and brings clearing to end the week. That being said, don't expect a significant warm-up yet, as without a stronger feature such as a deeper ridge to bring more heating and warmth, temperatures will only slowly bounce back into the 70's to end the period. The environment should mostly promote generic showers and thunderstorms each evening, though the environment may be favorable for some stronger activity on Tuesday. Otherwise, a cool week is anticipated to bring an end to May before we move into the summer months. && .AVIATION /18Z TAFS THROUGH 18Z SUNDAY/... Issued at 1145 AM MDT Sat May 24 2025 Very messy TAF forecast as ongoing precipitation alongside new convection going into the afternoon and low CIGs will make for difficult forecasting across the region. Areas of thunderstorms expected this afternoon through this evening with widespread coverage of precipitation possible through tonight. All TAF sites have a chance of thunderstorms, with Wyoming terminals having the best cloud decks outside of KCYS. Otherwise KCYS and all Nebraska terminals with continue to see mid to low ceilings through the overnight creating IFR to LIFR conditions. Some storms could be strong to possibly severe as well, with localized enhancements to winds and hail possible. Overall wind field otherwise should be manageable, with winds 10-20 knots outside of any nearby thunderstorms. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...None. NE...None. && SHORT TERM...CG LONG TERM...CG AVIATION...CG
Hazardous Weather Outlook National Weather Service Cheyenne WY 344 PM MDT Sat May 24 2025 NEZ002-003-019>021-054-055-095-096-WYZ101>119-252145- 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- 344 PM MDT Sat May 24 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 A marginal risk of severe weather continues this afternoon, with activity weakening this evening and overnight. A marginal risk of localized flooding is possible today and tomorrow from moderate to occasionally heavy rainfall and training precipitation. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Daily showers and thunderstorms are possible through the middle of the week with a modest warming and clearing trend to end the week. .Spotter information statement... Spotter activation will not be needed.
Special Weather Statement
National Weather Service Cheyenne WY
1215 PM MDT Sat May 24 2025
WYZ103-105-241900-
Shirley Basin WY-North Laramie Range WY-
1215 PM MDT Sat May 24 2025
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN CARBON AND NORTH
CENTRAL ALBANY COUNTIES THROUGH 100 PM MDT...
At 1215 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles east of Battle Mountain, or 53 miles south of Casper, moving
east at 15 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
This storm will remain over mainly rural areas of northeastern Carbon
and north central Albany Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4200 10609 4214 10613 4228 10579 4206 10570
TIME...MOT...LOC 1815Z 248DEG 12KT 4209 10603
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
GoatleySpecial Weather Statement
National Weather Service Cheyenne WY
129 PM MDT Sat May 24 2025
WYZ114-115-242000-
Laramie Valley WY-Snowy Range WY-
129 PM MDT Sat May 24 2025
...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL ALBANY COUNTY
THROUGH 200 PM MDT...
At 128 PM MDT, Doppler radar was tracking a strong thunderstorm
capable of producing a landspout near Woods Landing-Jelm, or 28 miles
southwest of Laramie, moving northeast at 15 mph.
HAZARD...Landspouts, wind gusts of 50 to 55 mph, and half inch hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible. Gusty winds
could knock down tree limbs and blow around unsecured
objects.
Locations impacted include...
Woods Landing-Jelm and Harmony.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4109 10612 4123 10585 4104 10573 4099 10586
4099 10604
TIME...MOT...LOC 1928Z 238DEG 15KT 4104 10601
LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH
MMSpecial Weather Statement
National Weather Service Cheyenne WY
229 PM MDT Sat May 24 2025
WYZ115>117-242100-
South Laramie Range WY-South Laramie Range Foothills WY-
Laramie Valley WY-
229 PM MDT Sat May 24 2025
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN ALBANY AND
SOUTHWESTERN LARAMIE COUNTIES THROUGH 300 PM MDT...
At 229 PM MDT, Doppler radar was tracking a strong thunderstorm near
Ames Monument, or 16 miles southeast of Laramie, moving east at 25
mph.
HAZARD...Wind gusts up to 50 mph and half inch 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...
Willadsen Estates, Granite Canon, Vedauwoo, Tie Siding, Crystal Lake
Reservoir, Pumpkin Vine, Vedauwoo Campground, Buford, North Crow
Campground, Granite Springs Reservoir, Ames Monument, Curt Gowdy
State Park, Pine Grove Estates, Granite Springs Retreat, The Buttes,
and Cheyenne Pass.
This includes Interstate 80 in Wyoming between mile markers 327 and
344.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4103 10552 4116 10555 4127 10517 4103 10513
TIME...MOT...LOC 2029Z 260DEG 24KT 4109 10543
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
GoatleySpecial Weather Statement
National Weather Service Cheyenne WY
229 PM MDT Sat May 24 2025
WYZ114>116-242100-
South Laramie Range WY-Laramie Valley WY-Snowy Range WY-
229 PM MDT Sat May 24 2025
...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL ALBANY COUNTY
THROUGH 300 PM MDT...
At 229 PM MDT, Doppler radar was tracking a strong thunderstorm near
Woods Landing-Jelm, or 22 miles southwest of Laramie, moving east at
25 mph.
HAZARD...Wind gusts up to 50 mph and penny 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...
Nine Mile, Boulder Ridge, Woods Landing-Jelm, Harmony, Hutton Lake,
Sheep Mountain, The Buttes, Twin Buttes Lake, Wild Horse Ranch, and
Paddocks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4104 10605 4122 10604 4126 10557 4100 10557
4099 10561
TIME...MOT...LOC 2029Z 271DEG 22KT 4114 10595
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
MMThe Cheyenne radar (KCYS), 124 km away, was scanning. The volume nearest the first event began at 22:45 UTC.
2 thunderstorm wind. Local standard time, as filed.
KBFF ASOS station at the Scottsbluff airport reported a 60mph wind gust.
Minor wind amage reported on the roof of the KNEB radio station building.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2025Every state in 2025This day in weather historyWarnings in Nebraska, May 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: 1252466, 1252471.