Severe Weather Threat: Wisconsin, Michigan, Great Lakes

Photo of lightning courtesy of flikr user pennuja

After a stormy Father’s Day across the Upper Midwest, severe storms will shift eastward into the Great Lakes to start off the new week.

The violent thunderstorms that blasted into parts of South Dakota and Minnesota on Sunday brought damaging wind gusts past 70 mph and golf ball-sized hail.

Today the risk for severe thunderstorms shifts eastward into the Great Lakes region, including Wisconsin, Michigan and southern Ontario.

Residents who live in Wausau, Wis., Green Bay, Wis., and Traverse City, Mich., will need to stay alert and keep an eye to the sky throughout the day.

Many folks will wake up to a complex of thunderstorms moving across the Great Lakes early this morning. However, residents should not let their guard down as another round of damaging thunderstorms is in store later this afternoon.

Once the cluster of thunderstorms moves out of the region and weakens later this morning, clouds will give way to some sunshine. This will allow the atmosphere to reload with heat and humidity, setting the stage for severe storms to erupt again this afternoon.

Similar to Sunday, the greatest severe weather threats will be damaging straight-line winds exceeding 60 mph and large hail to the size of golf balls.

A brief tornado touchdown will also be possible with the strongest storms.

Additionally, any thunderstorm can produce blinding downpours capable of flash flooding. The highest flash flooding risk will be in low-lying and poor drainage areas.

Torrential downpours can make travel on roadways especially difficult and hazardous. Pull off to the side of the road until it is safe to continue driving.

Frequent and dangerous lightning will also accompany any thunderstorm, regardless if it is severe or not. If you are outside when a storm threatens, seek shelter immediately and stay away from windows.

Heading into tonight, the threat for damaging storms will continue to push eastward into eastern Michigan and southern Ontario before gradually weakening overnight.

Heed all watches and warnings and be sure to have a plan in place before severe thunderstorms threaten.

Keep checking back with AccuWeather.com throughout the day for the latest severe weather updates.

By Mark Miller, Meteorologist

More Safety Info:

  1. Current Severe Weather Danger: Missouri to Wisconsin
  2. Severe Weather Threat Shifts to Northern Plains
  3. Chances for thunderstorms and severe weather increasing Friday and Saturday
  4. Severe Weather Threat Shifts to Northern Plains Monday
  5. Severe Weather Targets Oklahoma, Arkansas Today

 

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