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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Coastal Waters Forecast for Anegada Passage Southward to 17N (AMZ722) (Text-Only)
NWS Forecast for: Anegada Passage Southward to 17N (AMZ722)
Issued by: National Weather Service San Juan, PR
Last Update: 1008 AM AST Mon Dec 18 2017




Rest Of Today: East winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers through the day.

Tonight: Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Isolated showers.

Tuesday: Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 10 seconds. Isolated showers.

Tuesday Night: Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 10 seconds. North swell 4 to 5 feet. Scattered showers.

Wednesday: Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 10 seconds. North swell 4 to 5 feet. Scattered showers.

Thursday: East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers.

Friday: Northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Scattered showers. Isolated thunderstorms.



Zone Forecast: Anegada Passage Southward to 17N (AMZ722)

Visit your local NWS office at: http://www.weather.gov/sanjuan