Unsettled Across the West; Increasingly Rainy with a Few Storms in the South

A frontal system will bring heavy precipitation, including mountain snowfall to much of the Pacific Northwest, northern California, and portions of the Rockies through Tuesday. Elsewhere, wet weather will return to much of the South with locally heavy rainfall; a few strong to severe thunderstorms will also be possible in this region by Tuesday.
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Coastal Waters Forecast for Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N (AMZ710) (Text-Only)
NWS Forecast for: Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N (AMZ710)
Issued by: National Weather Service San Juan, PR
Last Update: 1008 AM AST Mon Dec 18 2017
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Rest Of Today: Northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. North swell around 4 feet. 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 8 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 after midnight. Scattered showers.

Wednesday: East winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 10 seconds. Scattered showers.

Thursday: Northeast 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 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers. Isolated thunderstorms.



Zone Forecast: Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N (AMZ710)

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