Alert archive / Nebraska / Mesoscale Discussions in 2026

Mesoscale Discussion 2016

August 17, 202621 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Aug 17, 2026, 4:29 PM MDT for 21 counties in Nebraska. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued: Aug 17, 2026, 4:29 PM MDT (22:29 UTC)
Expired: Aug 17, 2026, 5:30 PM MDT
In force: 61 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch likely
Chance of a watch: 80%

All 21 counties

Arthur County, NE, Blaine County, NE, Box Butte County, NE, Brown County, NE, Cherry County, NE, Cheyenne County, NE, Custer County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 70 km from the middle of the area, began a volume at 22:31 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 592Aug 17, 4:40 PM MDT

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 17, 4:40 PM MDT	Severe Thunderstorm Watch	SPC	Arthur, Blaine, Box Butte, Boyd, Brown, Cherry and 19 more	6 hr

Nearby

Mesoscale Discussions in Nebraska, 2026 Every mesoscale discussion 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; radar from the NEXRAD Level II archive.