Severe weather remains a threat for areas under Severe Thunderstorm Watch 639. Large hail and severe wind gusts are possible, with the potential for damaging winds increasing over the next couple of hours due to storm clustering. Isolated supercell storms have already produced very large hail and severe wind gusts.

Further details on the severe weather threat are available from the Storm Prediction Center. The watch is in effect until a specified time.

Affected areas include parts of South Dakota and Nebraska, but for specific information and updates, it is best to consult the original forecast discussion.