North Dakota Cumulus Deepens into Severe Hail and Gust Threat Tonight — SevereWX

North Dakota Cumulus Field Sharpens Severe Storm Setup

A subtle meso-low near the triple point is fueling a deepening cumulus field across Bottineau and McHenry Counties in north-central and northeast North Dakota. As afternoon heating erodes remaining convective inhibition, storm initiation looks increasingly likely by 7 PM CDT, according to latest CAM guidance.

Objective analyses reveal a potent environment: MLCAPE surging to 3000-3500 J/kg paired with 30-40 kt of effective shear. This supports organized modes like initial supercells transitioning to a cold-pool driven system. Primary threats include large hail up to 1.75 inches and severe wind gusts to 70 mph. A weaker tornado risk exists but stays limited due to short storm residence along an outflow boundary.

SPC's Mesoscale Discussion 1635 highlights monitoring for a possible severe thunderstorm watch, with 40% issuance probability through early evening. Coverage remains the wildcard—isolated storms now, but potential for multiples could trigger watch action.

Storms may spark farther south along a surface trough near Bismarck too. Keep eyes on radar as convective trends evolve.

Stay prepared: Monitor local NWS alerts, secure outdoor items, and have a severe weather plan ready for your area.