⚠️ Severe Thunderstorm Warning – Box Butte, NE; Dawes, NE; Sioux, NE – Friday, August 21, 2026

Severe Thunderstorm Warning issued August 21 at 5:23PM MDT until August 21 at 6:15PM MDT by NWS Cheyenne WY

Details

SVRCYS

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for…
Northern Box Butte County in the Panhandle of Nebraska…
Southwestern Dawes County in the Panhandle of Nebraska…
Southeastern Sioux County in the Panhandle of Nebraska…

* Until 615 PM MDT.

* At 523 PM MDT, severe thunderstorms were located along a line
extending from 7 miles northwest of Box Butte Campground to 7 miles
northeast of Flahertys Corner, moving southeast at 20 mph.

HAZARD…Ping pong ball size hail and 60 mph wind gusts.

SOURCE…Radar indicated.

IMPACT…People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.

* Locations impacted include…
Hemingford, Box Butte Campground, Box Butte County Fairgrounds, Box
Butte Reservoir, Flahertys Corner, Marsland, and Box Butte Dam.

Instructions

For your protection move to an interior room on the lowest floor of a
building.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.