Flash Flood Watches in Southeast and Tennessee Valley; Critical Fire Weather in California; Severe Weather in Upper Midwest

Flash flood watches are in effect today in parts of the Southeast and Tennessee Valley from organized areas of heavy to excessive rainfall. Meanwhile, critical fire weather conditions are likely across northern California with offshore winds and dry conditions. Finally, a strong cold front will produce severe thunderstorms across the Upper to Mid Mississippi Valley.
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Last Update: 1016 AM EDT Mon Sep 20 2021

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Tampa Bay, FL Local Forecast Office

5NM ESE Boca Grande FL

Marine Zone Forecast


Synopsis: Weak high pressure will hold across the waters through midweek. A weak cold front will approach and stall across the northern waters late in the week. Winds will remain less than 15 knots with seas less than 3 feet through the period.

This Afternoon
Winds becoming west 5 to 10 knots early in the afternoon then becoming northwest late in the afternoon. Bay and inland waters smooth. Scattered thunderstorms.
Tonight
Northeast winds 5 to 10 knots becoming east around 5 knots overnight. Bay and inland waters smooth. Scattered thunderstorms in the evening.
Tuesday
East winds around 5 knots becoming northwest around 10 knots in the afternoon. Bay and inland waters a light chop. numerous showers and scattered thunderstorms in the afternoon.
Tuesday Night
East winds around 10 knots. Bay and inland waters a light chop. Scattered thunderstorms in the evening.
Wednesday
East winds around 5 knots becoming southeast late in the morning, then becoming west 5 to 10 knots in the afternoon. Bay and inland waters smooth. Scattered thunderstorms.
Wednesday Night
Northwest winds around 5 knots becoming northeast overnight. Bay and inland waters smooth. Scattered thunderstorms in the evening.
Thursday
East winds around 5 knots becoming south late in the morning, then becoming west 5 to 10 knots in the afternoon. Bay and inland waters smooth. Numerous showers and scattered thunderstorms in the afternoon.
Thursday Night
Northwest winds around 5 knots becoming northeast in the late evening and overnight. Bay and inland waters smooth. scattered thunderstorms in the evening.
Friday
East winds around 5 knots becoming southeast late in the morning, then becoming west 5 to 10 knots in the afternoon. Bay and inland waters smooth. Numerous showers and scattered thunderstorms in the afternoon.
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ABOUT THIS FORECAST

Last Update: 1016 AM EDT Mon Sep 20 2021
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