Heavy Rains Expected to Impact Parts of the Eastern U.S.

A strong cold front will produce heavy rain will create mainly localized areas of flash flooding to the Great Lakes and Ohio Valley. There is another flash flood threat in the parts of the Southeast and Southern Appalachians.
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Last Update: 427 AM EDT Tue Sep 21 2021

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Norton, MA Local Forecast Office

21NM E Portsmouth RI

Marine Zone Forecast


Synopsis: ANZ200-212100- 427 AM EDT Tue Sep 21 2021 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres S of the Maritimes moves farther offshore tonight into Wed. By late this week, a cold front approaches New England from the W, and will be accompanied by scattered showers, with locally heavy rain possible and isolated thunderstorms. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo $$

Today
SE winds around 10 kt. Seas 1 foot or less.
Tonight
SE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft.
Wed
SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Wed Night
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu Night
SE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. A chance of showers.
Fri
S winds around 10 kt. Seas 2 to 3 ft. A chance of showers.
Fri Night Through Sat Night
SW winds 5 to 10 kt. Seas 2 to 3 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.

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.
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Last Update: 427 AM EDT Tue Sep 21 2021
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