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: 941 AM CDT Mon Sep 20 2021

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Mobile, AL Local Forecast Office

10NM SSW Gulf Shores AL

Marine Zone Forecast

Synopsis: A light to moderate south to southwest flow prevails today through Tuesday and then becomes westerly Tuesday evening as a cold front approaches from the north. The front moves through late Tuesday night, and a northerly flow in the wake of the front becomes moderate to strong by Wednesday afternoon, then subsides on Friday.

Rest Of Today

Southwest winds 5 to 10 knots increasing to 8 to 13 knots. Seas 1 to 2 feet. Dominant wave period 5 seconds. Slight chance of thunderstorms late in the morning. Chance of showers. Chance of thunderstorms in the afternoon.

Tonight

Southwest winds 8 to 13 knots. Seas 1 to 2 feet. Dominant wave period 5 seconds. Slight chance of showers and thunderstorms.

Tuesday

West winds 5 to 10 knots becoming southwest. Seas around 1 foot. Dominant wave period 5 seconds. Chance of showers and thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon.

Tuesday Night

Southwest winds 8 to 13 knots becoming west. Seas 1 to 2 feet. Dominant wave period 4 seconds. Slight chance of showers and thunderstorms in the evening, then chance of showers and thunderstorms after midnight.

Wednesday

Northwest winds 13 to 18 knots increasing to 15 to 20 knots. Gusts up to 25 knots. Seas 1 to 3 feet. Dominant wave period 4 seconds. Chance of showers and thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon.

Wednesday Night

North winds 18 to 23 knots. Seas 2 to 4 feet. Dominant wave period 4 seconds.

Thursday

North winds 18 to 23 knots. Seas 2 to 4 feet. Dominant wave period 4 seconds.

Thursday Night

North winds 15 to 20 knots. Seas 2 to 3 feet. Dominant wave period 4 seconds.

Friday

Northeast winds 13 to 18 knots. Seas 1 to 3 feet. Dominant wave period 4 seconds.

Friday Night

Northeast winds 8 to 13 knots. Seas around 1 foot. Dominant wave period 4 seconds.