Storms Intensifying Over Northern Dakotas with 2.5-Inch Hail, 80 MPH Wind Threat — SevereWX

Thunderstorms are gaining strength across parts of northern South Dakota and southern/western North Dakota this evening, posing risks of severe weather.

The Storm Prediction Center highlights an isolated severe threat as storms intensify near an axis of rich low-level moisture and high instability (MLCAPE 2000-3000 J/kg). Activity already ramping up in northwestern SD, within the eastern fringe of WW 441, is expected to push northeast into north-central SD. New development could spark in southern and western ND too.

Storms near the instability corridor may yield isolated large hail (1.50-2.50 inches), damaging wind gusts (65-80 mph), and a tornado risk up to 90 mph. A watch extension over northern SD or a new watch is 40% likely within the next few hours (valid until around 7:30 PM CDT July 2).

Surface dewpoints in the lower-mid 60s°F support the setup, with models showing persistence of this cluster. Keep an eye on areas from Rapid City northeastward and into ND's southern plains.

Stay prepared: Monitor local NWS updates, have a severe weather plan, secure outdoor items, and seek shelter if warnings issue. Check radar frequently tonight.