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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Coastal Waters Forecast for Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ550) (Text-Only)
NWS Forecast for: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ550)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 931 AM CDT Thu Sep 20 2018
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Rest Of Today: Southeast winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Slight chance of showers and thunderstorms.

Tonight: Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and thunderstorms.

Friday: Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and thunderstorms.

Friday Night: Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and thunderstorms.

Saturday: Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Showers and thunderstorms likely.

Saturday Night: East winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and thunderstorms.

Sunday: East winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and thunderstorms.

Sunday Night: Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and thunderstorms.

Monday: Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers and thunderstorms likely.

Monday Night: South winds 10 to 15 knots. Seas 1 to 2 feet. Showers and thunderstorms likely.



Zone Forecast: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ550)

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