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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Last Update: 245 PM EDT Thu Sep 20 2018

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Gray/Portland, ME Local Forecast Office

11NM S Brunswick ME

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH

Synopsis: ANZ100-210845- 245 PM EDT Thu Sep 20 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure over the region will slowly retreat into the maritimes through tonight. An increasing south to southwest flow will develop in advance of an approaching strong cold front. The front will pass across the waters late Friday night with north to northwest winds behind the front. High pressure builds across the waters over the weekend allowing winds to diminish and become light. && $$

Tonight
S winds around 5 kt. Seas 1 to 2 ft. Patchy drizzle. Patchy fog. Vsby 1 to 3 nm.
Fri
S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy drizzle in the morning. Patchy fog in the morning with vsby 1 to 3 nm.
Fri Night
S winds 15 to 20 kt, becoming SW 10 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight. Some tstms may produce gusty winds after midnight.
Sat
NW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers in the morning.
Sat Night
N winds around 5 kt. Seas 1 to 2 ft in the evening, then 1 foot or less.
Sun
N winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less.
Sun Night
SW winds around 5 kt, becoming NE after midnight. Seas 1 to 2 ft.
Mon
E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Mon Night
E winds 5 to 10 kt. Seas 1 foot or less.
Tue
SE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 nm.
Tue Night
S winds 5 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 nm. winds and seas higher in and near tstms.
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ABOUT THIS FORECAST

Last Update: 245 PM EDT Thu Sep 20 2018
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