Alert archive / Nebraska / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 182, NWS Cheyenne, WY

July 1, 2025Box Butte County, Dawes County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 1, 2025, 6:05 PM MDT for Box Butte County, Dawes County, Nebraska. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 1, 2025, 6:05 PM MDT (00:05 UTC)
Expired: Jul 1, 2025, 6:30 PM MDT
In force: 25 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Box Butte County, NE, Dawes County, NE

The radar

The Rapid City radar (KUDX), 185 km from the middle of the area, began a volume at 00:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 1, 4:03 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 0.1 hours before the alert went out and 179 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 474 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 2895 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -36 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jul 1, 5:36 PM MDT, 29 minutes earlier.

Area forecast discussion, Jul 1, 5:36 PM MDT, 29 minutes before

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Hazardous weather outlook, Jul 1, 12:56 PM MDT, 5 hours 9 minutes before

Hazardous Weather Outlook
National Weather Service Cheyenne WY
1256 PM MDT Tue Jul 1 2025

WYZ101-103>107-109>119-021900-
Converse County Lower Elevations-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte 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-
1256 PM MDT Tue Jul 1 2025

This hazardous weather outlook is for portions of east central
Wyoming...south central Wyoming and southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Showers and thunderstorms are expected to develop this afternoon.
A few strong thunderstorms may contain small hail and brief gusty
winds up to 60 MPH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Warm temperatures and daily chances for afternoon showers and
thunderstorms.

.Spotter information statement...

Spotter activation will not be needed.

NEZ002-003-019>021-054-055-095-096-WYZ102-108-021900-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-Niobrara County-
Goshen County-
1256 PM MDT Tue Jul 1 2025

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming and southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Showers and thunderstorms will develop over southeast Wyoming and
move eastward into western Nebraska late this afternoon and this
evening. A few of these thunderstorms may become marginally severe
with large hail and strong gusty winds.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Warm temperatures and daily chances for afternoon showers and
thunderstorms after Thursday.

.Spotter information statement...

Spotter activation will not be needed.

In the hours before

Special weather statement, Jul 1, 2:19 PM MDT, 3 hours 46 minutes before

Special Weather Statement
National Weather Service Cheyenne WY
219 PM MDT Tue Jul 1 2025

WYZ117-118-012045-
Central Laramie County WY-South Laramie Range Foothills WY-
219 PM MDT Tue Jul 1 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN LARAMIE COUNTY
THROUGH 245 PM MDT...

At 218 PM MDT, Doppler radar was tracking a strong thunderstorm near
Warren AFB, or 9 miles southwest of Cheyenne, 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...
Cheyenne, Silver Sage Estates, Laramie County Fairgrounds at Archer,
Fox Farm-College, Cheyenne Regional Airport, Winchester Hills, South
Greeley Highway, Warren AFB, Frontier Park, South Cheyenne, Bison
Crossing, North Cheyenne, Ranchettes, Grass Hills, and Cowboy Ranch
South.

This includes the following highways...
 Interstate 25 in Wyoming between mile markers 1 and 15.
 Interstate 80 in Wyoming between mile markers 351 and 374.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4101 10504 4121 10501 4119 10457 4100 10459
      4100 10498
TIME...MOT...LOC 2018Z 280DEG 20KT 4108 10495

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

RJM

Special weather statement, Jul 1, 4:35 PM MDT, 1 hour 30 minutes before

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Special weather statement, Jul 1, 5:29 PM MDT, 36 minutes before

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Local storm report, Jul 1, 5:49 PM MDT, 16 minutes before

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Special weather statement, Jul 1, 5:58 PM MDT, 7 minutes before

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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 2, 4:37 PM MDT	Special Weather Statement	CYS		23 min
Jul 2, 4:51 PM MDT	Special Weather Statement	CYS		24 min
Jul 2, 5:20 PM MDT	Special Weather Statement	CYS	Niobrara	25 min
Jul 1, 6:27 PM MDT	Special Weather Statement	CYS	Box Butte	33 min
Jul 1, 6:46 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Dawes	32 min
Jul 1, 7:04 PM MDT	Special Weather Statement	CYS	Box Butte	26 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2025 Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.