Heavy Snow For Portions of the Northeast; Great Lakes

Moderate to heavy snow will return to the Northeast and New England over the next couple of days. Heavy Lake Effect Snow will continue to the lee of the Great Lakes. Light snow will fall across portions of the Tennessee Valley; working into the Mid-Atlantic by mid-week. Meanwhile, elevated fire weather conditions will continue in southern California.
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Hazardous Weather Conditions

Last Update: 408 AM AST Tue Dec 12 2017

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San Juan, PR Local Forecast Office

25NM WNW San Juan PR

Marine Zone Forecast


Today
East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Northeast swell around 4 feet. Isolated showers.
Tonight
South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 9 seconds. Isolated showers through the night.
Wednesday
South winds 5 to 10 knots backing northeast in the afternoon. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 8 seconds.
Wednesday Night
East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Isolated showers.
Thursday
East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet. Isolated showers.
Friday
East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Northwest swell 4 to 5 feet. Isolated showers.
Saturday
East winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Isolated showers.
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ABOUT THIS FORECAST

Last Update: 408 AM AST Tue Dec 12 2017
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