Severe T-Storm Warning in N. MN; MD for Central SD/NE — July 30, 2026 — SevereWX

A Marginal Risk for severe thunderstorms covers parts of the Upper Great Lakes region on this SPC Day 1 outlook for July 30, 2026. Right now, a severe thunderstorm warning is in effect across St. Louis County in northern Minnesota. Earlier this evening, the Storm Prediction Center highlighted increasing severe potential farther east in the Michigan Upper Peninsula.

Storms are firing up amid unstable air, with the potential for damaging winds and large hail the main threats through the overnight hours.

Timeline

7:35 PM EDT — Mesoscale Discussion for Michigan Upper Peninsula

The Storm Prediction Center issued a mesoscale discussion noting severe thunderstorm potential in portions of the Michigan Upper Peninsula. A severe thunderstorm watch is possible, with a 40% probability. The discussion is valid through 9:00 PM EDT.

11:57 PM EDT — Severe Thunderstorm Warning for St. Louis, MN

A Severe Thunderstorm Warning is now in effect for St. Louis County in Minnesota until 12:45 AM EDT. Strong storms capable of producing damaging winds and large hail are moving through the area.

12:40 AM EDT — SPC notes severe storm potential in central SD, north central NE

The Storm Prediction Center issued a mesoscale discussion highlighting potential for severe thunderstorms across much of central South Dakota and north central Nebraska. Storms there could bring damaging winds and large hail. A thunderstorm watch is unlikely.

What's Next

Severe thunderstorm warning remains active in northern Minnesota with isolated damaging wind and hail threats. SPC assesses marginal severe potential in central South Dakota and north central Nebraska but considers watches unnecessary. Monitor local updates and radar for any changes.

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