Unsettled Weather Continues in the Northwest; Ice & Snow to Develop Across Parts of the Central U.S.

Unsettled weather will persist across the western U.S. during the next few days with locally heavy coastal rain and mountain snow for much of the Pacific Northwest. Another weather system will affect parts of the Southwest and central United States with snow and mixed precipitation developing from Oklahoma northeastward into the Great Lakes.
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Hazardous Weather Conditions

Last Update: 436 PM AST Tue Jan 21 2020

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San Juan, PR Local Forecast Office

25NM WNW San Juan PR

Marine Zone Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Tonight
Southeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet. Scattered showers.
Wednesday
Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Northeast swell around 4 feet. Scattered showers.
Wednesday Night
South winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds. Scattered showers.
Thursday
Southwest winds 5 to 10 knots veering northwest in the afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Numerous showers through the day. Isolated thunderstorms in the afternoon.
Thursday Night
North winds 5 to 10 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 11 seconds. Northwest swell 4 to 7 feet after midnight. Scattered showers.
Friday
Northeast winds 10 to 15 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 12 seconds. North swell 4 to 8 feet. Isolated showers.
Saturday
Northeast winds 5 to 10 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 12 seconds. North swell 5 to 8 feet. Isolated showers.
Sunday
East winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. North swell 4 to 5 feet. Isolated showers.
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ABOUT THIS FORECAST

Last Update: 436 PM AST Tue Jan 21 2020
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