Severe Thunderstorms Possible for the Great Lakes into Ohio Valley; Heavy to Excessive Rainfall Over the Southern Plains

Severe thunderstorms will race along a cold front from the Upper Mississippi Valley into the Great Lakes and Ohio Valley with the main threat being damaging winds. The tail end of this front will possibly produce heavy to excessive rainfall across the southern Plains into the Lower Mississippi Valley through Saturday. Finally, Major-to-record river flooding continues across the Carolinas.
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Coastal Waters Forecast for Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm (ANZ254) (Text-Only)
NWS Forecast for: Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm (ANZ254)
Issued by: National Weather Service Norton, MA
Last Update: 345 AM EDT Fri Sep 21 2018
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Today: SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 25 kt this afternoon. Seas 4 to 6 ft.

Tonight: S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Gusts up to 35 kt. Seas 4 to 7 ft. A chance of showers.

Sat: W winds 15 to 20 kt with gusts up to 30 kt, becoming N in the afternoon. Seas 4 to 7 ft. A chance of showers.

Sat Night: NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft.

Sun: N winds 5 to 10 kt. Seas 2 to 3 ft.

Sun Night: N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft.

Mon: NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.

Mon Night: E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.

Tue: E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers.

Tue Night: SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. A chance of showers. seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.



Zone Forecast: Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm (ANZ254)

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