⚠️ Severe Thunderstorm Warning – Sioux, NE; Goshen, WY; Niobrara, WY; Platte, WY – Saturday, June 20, 2026

Severe Thunderstorm Warning issued June 20 at 6:10PM MDT until June 20 at 7:00PM MDT by NWS Cheyenne WY

Details

SVRCYS

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for…
Sioux County in the Panhandle of Nebraska…
Eastern Niobrara County in east central Wyoming…
Northern Goshen County in southeastern Wyoming…
East central Platte County in southeastern Wyoming…

* Until 700 PM MDT.

* At 610 PM MDT, severe thunderstorms were located along a line
extending from 6 miles south of Morrisey to near Van Tassell to 6
miles southeast of Grayrocks Reservoir, moving east at 40 mph.

HAZARD…60 mph wind gusts.

SOURCE…Radar indicated.

IMPACT…Expect damage to roofs, siding, and trees.

* Locations impacted include…
Torrington, Lingle, Harrison, Fort Laramie, Henry, Van Tassell,
Mule Creek Junction, Agate Fossil Beds National Monument,
Torrington Municipal Airport, Montrose, Redbird, Pine Ridge
Estates, Prairie Center, Jay Em, Fort Laramie National Historic
Site, Grayrocks Reservoir, Fort Robinson State Park, Hwy 85 At Dry
Rawhide Creek, Toadstool Geological Park and Campground, and Goshen
County Fairgrounds.

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.