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.
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Last Update: 247 PM EDT Thu Sep 20 2018

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Tampa Bay, FL Local Forecast Office

37NM SW Cedar Key FL

Marine Zone Forecast


Synopsis: High pressure ridging over Florida and the Gulf of Mexico will keep an east-northeast wind flow over the gulf coast waters into next week, with a weak sea breeze forming along the coast each afternoon. No marine weather concerns are anticipated with the exception of higher winds/seas and dangerous lightning in the vicinity of thunderstorms.

Tonight
Northeast winds around 10 knots then becoming east in the late evening and overnight. Seas 2 feet or less. Scattered thunderstorms.
Friday
East winds around 10 knots. Seas 2 feet or less. Scattered thunderstorms.
Friday Night
Northeast winds 5 to 10 knots then becoming east around 15 knots in the late evening and overnight. Seas 2 feet. Scattered thunderstorms.
Saturday
Northeast winds around 10 knots. Seas 2 feet. Isolated thunderstorms.
Saturday Night
East winds around 10 knots. Seas 2 feet. Scattered thunderstorms.
Sunday
East winds around 10 knots. Seas 2 feet or less. Scattered thunderstorms.
Sunday Night
East winds 5 to 10 knots increasing to around 15 knots after midnight. Seas 2 feet. Scattered thunderstorms.
Monday
East winds around 10 knots. Seas 2 feet. Isolated thunderstorms.
Monday Night
East winds 5 to 10 knots increasing to around 15 knots in the late evening and overnight. Seas 2 feet. Scattered thunderstorms.
Tuesday
Northeast winds around 10 knots. Seas 2 feet. Scattered thunderstorms.
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ABOUT THIS FORECAST

Last Update: 247 PM EDT Thu Sep 20 2018
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