Alert archive / Nebraska / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 176, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 28, 2026, 11:20 PM MDT for Box Butte County, Dawes County, Sioux County, Nebraska. It was in force for 40 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
- Jun 28, 2026, 11:20 PM MDT (05:20 UTC)
- Expired
- Jun 29, 2026, 12:00 AM MDT
- In force
- 40 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Box Butte County, NE, Dawes County, NE, Sioux County, NE
The radar
The Rapid City radar (KUDX), 188 km from the middle of the area, began a volume at 05:25 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, 5.3 hours before the alert went out and 181 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
- 3486 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jun 28, 5:25 PM MDT, 5 hours 55 minutes earlier.
Area forecast discussion, Jun 28, 5:25 PM MDT, 5 hours 55 minutes before
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</html>In the hours before
Special weather statement, Jun 28, 10:27 PM MDT, 53 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
1027 PM MDT Sun Jun 28 2026
NEZ096-WYZ108-290500-
South Sioux NE-Goshen County WY-
1027 PM MDT Sun Jun 28 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN SIOUX AND EAST
CENTRAL GOSHEN COUNTIES THROUGH 1100 PM MDT...
At 1027 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles northeast of Henry, or 11 miles east of Torrington, moving
north at 30 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...
Agate Fossil Beds National Monument.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4205 10381 4202 10405 4242 10414 4242 10373
TIME...MOT...LOC 0427Z 170DEG 27KT 4212 10395
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
ZawislakSpecial weather statement, Jun 28, 11:02 PM MDT, 18 minutes before
Special Weather Statement
National Weather Service Cheyenne WY
1102 PM MDT Sun Jun 28 2026
NEZ002-003-095-096-290545-
Box Butte NE-Dawes NE-North Sioux NE-South Sioux NE-
1102 PM MDT Sun Jun 28 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN BOX BUTTE...
SOUTHWESTERN DAWES AND SOUTHEASTERN SIOUX COUNTIES THROUGH 1145 PM
MDT...
At 1102 PM MDT, Doppler radar was tracking a strong thunderstorm near
Agate Fossil Beds National Monument, or 28 miles northeast of
Torrington, moving northeast at 40 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...
Crawford, Soldier Creek Campground, Agate Fossil Beds National
Monument, Fort Robinson State Park, Belmont, and the south fork burn
scar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4220 10371 4231 10389 4276 10351 4257 10308
TIME...MOT...LOC 0502Z 219DEG 36KT 4232 10374
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
TrudelThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 12:02 AM MDT | Severe Thunderstorm Warning | CYS | Goshen, Niobrara | 43 min |
| Jun 29, 3:22 AM MDT | Red Flag Warning | CYS | Albany, Converse, Goshen, Laramie, Niobrara, Platte | 18 hr |
| Jun 29, 12:39 PM MDT | High Wind Warning | CYS | Albany, Carbon, Laramie, Platte | 5 hr |
| Jun 29, 1:18 PM MDT | Fire Weather Watch | CYS | Converse, Goshen, Niobrara, Platte | 11 hr |
| Jun 28, 10:27 PM MDT | Special Weather Statement | CYS | Sioux | 33 min |
| Jun 28, 11:02 PM MDT | Special Weather Statement | CYS | Sioux | 43 min |
| Jun 28, 11:55 PM MDT | Special Weather Statement | CYS | Sioux | 50 min |
| Jun 28, 11:58 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 47 min |
| Jun 29, 12:44 AM MDT | Special Weather Statement | CYS | Dawes | 46 min |
| Jun 29, 1:08 AM MDT | Severe Thunderstorm Warning | CYS | Dawes | 37 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2026Every severe thunderstorm warning in 2026
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.