High Plains Storms Evolve into Hail-Heavy Clusters, 70 MPH Winds Ahead — SevereWX

Thunderstorms firing over the central Rockies, including Colorado's Front Range and northeast Wyoming, are poised to spill eastward into the High Plains this afternoon and evening.

The Storm Prediction Center highlights a setup favoring multicell clusters and isolated supercells amid steep lapse rates and 1000-1500 J/kg MLCAPE. Deep-layer shear of 30-40 knots will support storm organization, starting with large hail threats up to 1.75 inches before upscale growth boosts damaging wind potential to 55-70 mph.

Affected areas span eastern Wyoming, northeast Colorado, the Nebraska Panhandle, and far southwest South Dakota. A lingering cap has delayed initiation on the plains, but ongoing heating should erode it, allowing storms to advance from current developments.

CAM guidance points to evening clustering, raising the odds for widespread severe gusts. SPC rates watch issuance at 60% within the next few hours.

Peak Threats:

Keep an eye on radar as storms intensify—have your weather app alerts on and a plan ready for hail damage or sudden wind bursts.