Heavy Rains and Catastrophic Flooding Possible in Hawaii

A kona low will continue to bring heavy rain to Hawaii bringing flooding and flash flooding, landslides, road closures, and low visibility with high rainfall rates expected. Lake effect snow is expected downwind from the Great Lakes. Blizzard conditions are expected in the southeast Alaska.
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Last Update: 701 AM EST Tue Dec 7 2021

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Gray/Portland, ME Local Forecast Office

18NM S Portland ME

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
Synopsis: ANZ100-080215- 701 AM EST Tue Dec 7 2021 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure drifts overhead today, with winds gradually diminishing. Another storm system will track towards the region mid- week. High pressure crests the waters Thursday night. Southerly winds increase ahead of an approaching front Saturday. This front will be slow to cross the east coast this weekend. $$

Today
W winds 15 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft, subsiding to 4 to 7 ft this afternoon.
Tonight
W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft.
Wed
NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. A chance of rain and snow showers in the morning, then rain and snow likely in the afternoon. Vsby variable to less than one quarter nm.
Wed Night
N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain with snow likely in the evening, then snow likely with a chance of rain after midnight. Vsby variable to less than one quarter nm, increasing to 1 to 3 nm after midnight.
Thu
NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. A chance of snow and showers in the morning with vsby 1 to 3 nm.
Thu Night
N winds 5 to 10 kt with gusts up to 20 kt, becoming E after midnight. Seas 3 to 4 ft.
Fri
S winds 10 to 15 kt. Seas 3 to 5 ft.
Fri Night
SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft. A chance of showers after midnight.
Sat
S winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 5 ft. A chance of showers.
Sat Night
SW winds 15 to 20 kt. Seas 3 to 5 ft. A chance of showers in the evening, then showers likely after midnight.
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ABOUT THIS FORECAST

Last Update: 701 AM EST Tue Dec 7 2021
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