Widespread, Significant Severe Storms; Blistering Heat; Persistent Monsoon and Fire Weather Threats

A swath of severe weather is forecast from the Middle South to the Great Lakes. Very large hail, significant damaging winds, and tornadoes will be possible; especially; from northwestern Tennessee to southwestern Ohio. The south-central U.S. remains excessively hot, with Heat Indices over 110 degrees. Monsoon moisture continues threats of local flash floods, and dry thunderstorms in the west.
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Hazardous Weather Conditions

Last Update: 944 AM EDT Fri Jul 20 2018

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Detroit/Pontiac, MI Local Forecast Office

6NM NW Caseville MI

Marine Zone Forecast

Rest Of Today
Southeast winds 15 to 20 knots. Partly cloudy. A slight chance of showers and thunderstorms early in the afternoon. A chance of showers and thunderstorms late in the afternoon. Waves 2 to 4 feet.
Tonight
Southeast winds 15 to 20 knots diminishing to 10 to 15 knots late in the evening...then increasing to 15 to 20 knots after midnight. Mostly cloudy. A chance of showers and thunderstorms in the evening...then a chance of light showers and a slight chance of thunderstorms after midnight. Waves 2 to 4 feet.
Saturday
East winds 15 to 20 knots. Mostly cloudy with light showers likely and a slight chance of thunderstorms. Waves 3 to 5 feet. Waves occasionally around 7 feet. A small craft advisory may be needed.
Saturday Night
East winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly cloudy. Light showers likely early in the evening...then a chance of light showers in the late evening and early morning. Waves 2 to 4 feet. see lake huron open lake forecast for days 3 through 5.
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ABOUT THIS FORECAST

Last Update: 944 AM EDT Fri Jul 20 2018
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