Mesoscale Discussion 1990

Issued

Aug 18, 2025, 6:25 PM MDT (00:25 UTC)

Expired

Aug 18, 2025, 8:30 PM MDT

In force

2 hr

Issued by

the Storm Prediction Center

Concerning

Severe thunderstorm watch 600

Counties Corson County, SD, Dewey County, SD, Haakon County, SD, Hughes County, SD, Jackson County, SD, Jones County, SD, Lyman County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Tripp County, SD, Walworth County, SD, Ziebach County, SD

The Rapid City radar (KUDX), 78 km from the middle of the area, began a volume at 00:26 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.

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Mesoscale Discussions in South Dakota, 2025Every mesoscale discussion in 2025

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.