Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult.
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Last Update: 612 AM EST Mon Dec 18 2017

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New York, NY Local Forecast Office

11NM N Riverhead NY

Marine Zone Forecast


Synopsis: ANZ300-182230- 612 AM EST Mon Dec 18 2017 .Synopsis for the Long Island Waters and New York Harbor... A warm front to the southwest of the waters moves through today as weak low pressure along the front tracks across the ocean waters. Meanwhile low pressure tracks through eastern Canada as a cold front approaches tonight and Tuesday. The cold front passes through the region Tuesday Night, with high pressure building from Wednesday through Thursday. A frontal system will approach on Friday. $$

Today
E winds around 5 kt. Seas 1 ft or less. Snow likely early. Chance of rain and slight chance of sleet this morning, then slight chance of rain this afternoon.
Tonight
W winds 5 to 10 kt. Seas 1 ft or less.
Tue
W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon.
Tue Night
W winds 20 to 25 kt with gusts up to 30 kt. Seas building 3 to 5 ft.
Wed
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Wed Night
NW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft in the evening, then 1 to 2 ft.
Thu
NW winds 5 to 10 kt. Seas 1 ft or less.
Thu Night
N winds around 5 kt, becoming NE after midnight. Seas 1 ft or less.
Fri
SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 1 ft or less in the morning, then 1 to 2 ft.
Fri Night
S winds 10 to 15 kt. Seas 1 to 2 ft. Chance of showers after midnight.
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Last Update: 612 AM EST Mon Dec 18 2017
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