Severe Thunderstorm and Flash Flooding Threats in the South

Organized severe thunderstorms capable of producing mainly large hail and perhaps damaging winds are expected across portions of Louisiana this afternoon with a second round further west tonight. Heavy thunderstorms may lead to flash flooding over portions of the northern Gulf Coast today through Saturday. Several inches of excessive rainfall are possible with Flash Flood Watches in effect.
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Hazardous Weather Conditions

Last Update: 322 PM EDT Tue Apr 13 2021

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Gray/Portland, ME Local Forecast Office

19NM SSE Rockland ME

Marine Zone Forecast


Synopsis: ANZ100-140930- 322 PM EDT Tue Apr 13 2021 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A weak high pressure ridge axis will remain over the area through Thursday with generally light winds over the waters. Low pressure will take shape south of New England late Thursday before strengthening south of the Gulf of Maine on Friday with gale force winds becoming increasingly likely. This low will begin to move east...away from the waters on Saturday. $$

Tonight
E winds 5 to 10 kt, becoming 5 to 15 kt late this evening, then becoming NE 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft.
Wed
N winds 10 to 15 kt with gusts up to 25 kt, becoming SE in the afternoon. Seas 2 to 4 ft.
Wed Night
SW winds around 5 kt, becoming NW after midnight. Seas 2 to 3 ft.
Thu
E winds 5 to 15 kt, becoming 10 to 15 kt in the afternoon. Seas 2 to 3 ft.
Thu Night
E winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of rain after midnight.
Fri
E winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft, building to 6 to 9 ft in the afternoon. Rain.
Fri Night
NE winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. Rain.
Sat
N winds 15 to 20 kt. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the afternoon. Showers likely, mainly in the morning.
Sat Night
N winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to 3 to 4 ft after midnight.
Sun
N winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft.
Sun Night
SW winds 5 to 10 kt. Seas around 2 ft.
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ABOUT THIS FORECAST

Last Update: 322 PM EDT Tue Apr 13 2021
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