Areas Of Locally Heavy Snow And Rain Today

A strong low pressure system over the Great Lakes will produce locally heavy snow and rain, before reaching eastern Canada by tomorrow morning. Heavy snow is expected across the Upper Mississippi Valley and Great Lakes with the arrival of an Arctic air mass, while locally heavy rain is possible along and ahead of the associated cold front over the eastern Ohio Valley and southeastern New England.
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Hazardous Weather Conditions

Last Update: 647 PM EST Mon Dec 9 2019

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Gray/Portland, ME Local Forecast Office

19NM SSE Rockland ME

Marine Zone Forecast

...STORM WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

Synopsis: ANZ100-101400- 647 PM EST Mon Dec 9 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Widespread rain continues tonight as low pressure moves into Quebec. South southwest winds continue to increase overnight with gales and low end storms likely. Winds and seas gradually diminish through Tuesday night. Some light snow is possible over the waters Tuesday night into Wednesday morning before clearing. Thereafter, a potentially potent low pressure system will approach Friday and may affect the waters over the weekend. && $$

Tonight

S winds 25 to 30 kt with gusts up to 45 kt. Seas 9 to 14 ft, building to 11 to 16 ft after midnight. Rain. Areas of fog. Vsby 1 to 3 nm.

Tue

SW winds 20 to 25 kt with gusts up to 35 kt. Seas 8 to 13 ft, subsiding to 8 to 11 ft in the afternoon. A chance of showers in the afternoon.

Tue Night

W winds 15 to 20 kt, becoming NW 10 to 20 kt after midnight. Gusts up to 30 kt. Seas 7 to 10 ft, subsiding to 5 to 8 ft after midnight. A chance of rain in the evening, then rain likely with a chance of snow after midnight with vsby 1 to 3 nm.

Wed

N winds 5 to 10 kt with gusts up to 20 kt, becoming NW in the afternoon. Seas 4 to 6 ft. Snow likely in the morning, then a chance of snow showers in the afternoon. Vsby 1 to 3 nm.

Wed Night

W winds 5 to 15 kt, increasing to 15 to 25 kt after midnight. Seas 4 to 6 ft. A chance of snow showers in the evening. Vsby 1 to 3 nm.

Thu

NW winds 15 to 25 kt, diminishing to 10 to 20 kt in the afternoon. Seas 4 to 7 ft, subsiding to 3 to 5 ft in the afternoon.

Thu Night

NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 3 ft.

Fri

SE winds up to 10 kt. Seas 2 to 3 ft.

Fri Night

S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.

Sat

SE winds 10 to 20 kt with gusts up to 25 kt. Seas 8 to 11 ft. Showers likely.