Enhanced Risk for Severe Thunderstorms Across the Upper Midwest; Flash Flooding Possible from the Upper Midwest to Southern Plains and Desert Southwest Through Friday
Portions of the Upper Midwest will see an increased threat for severe thunderstorms through this evening, with a few strong tornadoes possible. The same region remains on alert for additional flash flood concerns. Heavy rainfall may lead to flash flooding across the Desert Southwest today, and Southern Plains by Friday. Finally, Major-to-record river flooding continues across the Carolinas.
|NWS Forecast for: Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247)|
Issued by: National Weather Service Marquette, MI
Last Update: 312 PM EDT Thu Sep 20 2018
Rest Of Today: East wind 15 to 20 knots. Showers. Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet.
Tonight: East wind 20 to 25 knots veering south 15 to 20 knots after midnight, then veering west late. Showers and a chance of thunderstorms through midnight, then a chance of showers late. Waves building to 7 to 10 feet occasionally to 13 feet, then subsiding to 3 to 5 feet occasionally to 7 feet.
Friday: Northwest wind up to 30 knots. Gale force gusts up to 37 knots. Cloudy with a chance of showers. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet.
Friday Night: Northwest wind 5 to 15 knots backing southwest 10 to 15 knots after midnight. Gusts up to 23 knots. Mostly clear. Waves subsiding to 1 to 2 feet.
|Zone Forecast: Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247)|
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