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: 1019 AM CDT Mon Sep 20 2021

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New Orleans/Baton Rouge, LA Local Forecast Office

37NM S Houma LA

Marine Zone Forecast

Synopsis: Scattered thunderstorms will remain a threat through at least Tuesday. A front will approach the waters Tuesday night and pass through the waters by Wednesday afternoon. High pressure will then build in from the north by Thursday.

Rest Of Today

Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Showers likely in the late morning and early afternoon. Slight chance of thunderstorms through the day. Slight chance of showers late in the afternoon.

Tonight

Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and thunderstorms after midnight.

Tuesday

Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Showers likely and chance of thunderstorms.

Tuesday Night

West winds 10 to 15 knots becoming northwest after midnight. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and thunderstorms through the night.

Wednesday

North winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 4 seconds. Chance of showers and thunderstorms.

Wednesday Night

North winds 20 to 25 knots. Seas 3 to 5 feet. Dominant period 4 seconds.

Thursday

Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 4 seconds.

Thursday Night

Northeast winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 4 seconds.

Friday

Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds.

Friday Night

Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds.