Severe Thunderstorm Watch for Northern Minnesota: Large Hail and Damaging Winds Expected

The National Weather Service (NWS) has issued a severe thunderstorm watch for parts of northern Minnesota as a cold front tracks across the Upper Midwest. Meteorologists warn of potential hazards, including wind gusts exceeding 60 mph, large hail, and the possibility of isolated tornadoes through Wednesday evening. Residents in affected areas should monitor local alerts and have a reliable way to receive emergency weather information.

Where is the severe thunderstorm watch in effect?

The National Weather Service office in Duluth has placed multiple counties under a severe thunderstorm watch effective until 8 p.m. Wednesday. The watch area primarily targets the northern and northeastern portions of the state, where atmospheric conditions—specifically high instability and wind shear—are favorable for organized storm development. According to the Storm Prediction Center (SPC), the region is categorized under a “marginal” to “slight” risk for severe weather, meaning that while storms may be scattered, those that do develop have the potential to become intense quickly.

What are the primary weather hazards?

The primary threats identified by the NWS include:

• Damaging Winds: Gusts of 60 mph or higher are capable of downing tree limbs and causing power outages.
• Large Hail: Storms may produce hail ranging from the size of nickels to quarters, which can damage vehicles and crops.
• Tornado Potential: While not the primary threat, the NWS notes that any rotating updraft in a supercell storm could produce a brief tornado.

Unlike a severe thunderstorm warning, which indicates that a storm is currently occurring or has been detected on radar, a watch means that conditions are favorable for severe weather to develop. Officials advise residents to remain vigilant as the line of storms progresses.

How to stay safe during the storm

Emergency management agencies recommend that individuals prepare for potential power disruptions and hazardous travel conditions. If a severe thunderstorm warning is issued for a specific location, the Department of Homeland Security advises moving to an interior room on the lowest floor of a sturdy building, away from windows and glass doors. Drivers should avoid flooded roadways, as even a few inches of moving water can sweep a vehicle off the road.

Forecast outlook and timing

The current weather pattern is driven by a strong cold front moving from the Dakotas into Minnesota. This front is expected to exit the region late Wednesday night, bringing cooler and drier air by Thursday morning. According to the NWS forecast map, the most significant activity is expected to peak between 4 p.m. and 7 p.m. as daytime heating maximizes atmospheric instability. Residents should check the official NWS website periodically for updates on watch cancellations or the issuance of more urgent warnings.

Summary of Preparedness