Mixed Precipitation is moving eastward into New England,

Wintry precipitation will expand into the eastern portions of the Great Lakes and New England Tuesday into Tuesday night. An inclement weather pattern will produce coastal rain and higher elevation snow in the Pacific Northwest and Northern California on Tuesday, and into the Northern Intermountain Region by Wednesday.
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Hazardous Weather Conditions

Last Update: 400 AM AST Tue Jan 23 2018

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San Juan, PR Local Forecast Office

41NM N San Juan PR

Marine Zone Forecast

...Small Craft should exercise caution...

Synopsis: Surface high pressure will continue to build across the west and central Atlantic to maintain moderate to locally fresh trade winds and a slight chop across the local waters through Thursday. Increasing northeast winds and hazardous seas are forecast by Friday and into the weekend due to the arrival of another long period northerly swell.

Today
East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers.
Tonight
East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers.
Wednesday
East winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Scattered showers.
Wednesday Night
East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Isolated showers.
Thursday
Northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Scattered showers.
Friday
Northeast winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 12 seconds. North swell 4 to 8 feet. Scattered showers.
Saturday
East winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 12 seconds. North swell 4 to 8 feet. Scattered showers.
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ABOUT THIS FORECAST

Last Update: 400 AM AST Tue Jan 23 2018
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