Alert archive / Nebraska / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 296, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 24, 2025, 1:43 AM MDT for Dawes County, Sioux County, Nebraska. It was in force for 32 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
- Aug 24, 2025, 1:43 AM MDT (07:43 UTC)
- Expired
- Aug 24, 2025, 2:15 AM MDT
- In force
- 32 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Dawes County, NE, Sioux County, NE
The radar
The Rapid City radar (KUDX), 176 km from the middle of the area, began a volume at 07:48 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 nearest sounding before it
Rapid City, SD (KUNR), launched 00:00Z, 7.7 hours before the alert went out and 169 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2019 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 12:10 AM MDT | Special Weather Statement | CYS | Goshen | 65 min |
| Aug 24, 12:31 AM MDT | Special Weather Statement | CYS | Goshen | 44 min |
| Aug 24, 1:08 AM MDT | Special Weather Statement | CYS | Goshen | 52 min |
| Aug 24, 7:16 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 4 hr |
| Aug 23, 9:48 PM MDT | Special Weather Statement | CYS | Cheyenne | 27 min |
| Aug 24, 12:46 AM MDT | Special Weather Statement | CYS | Sioux | 59 min |
| Aug 24, 1:10 AM MDT | Special Weather Statement | CYS | Sioux | 50 min |
| Aug 24, 1:35 AM MDT | Special Weather Statement | CYS | Scotts Bluff | 25 min |
| Aug 24, 2:11 AM MDT | Special Weather Statement | CYS | Sioux | 34 min |
| Aug 24, 3:01 AM MDT | Special Weather Statement | CYS | Box Butte | 29 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2025Every 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.