Heavy Lake Effect Snow and Bitterly Cold Temperatures

A bitterly cold airmass will settle over much of the central and eastern U.S over the next several days. Well below normal temperatures and cold wind chills will be common. In addition, heavy lake effect snow will be possible especially downwind of Lakes Erie and Ontario, where up to one foot of additional snow is forecast by Sunday morning.
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Last Update: 830 AM PST SAT FEB 13 2016

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17NM SW San Francisco CA

Marine Zone Forecast

...SMALL CRAFT ADVISORY FOR ROUGH BAR IN EFFECT UNTIL 8 PM PST

Synopsis: GREATER FARALLONES...AND CORDELL BANK NATIONAL MARINE SANCTUARIES...

MODERATE TO STRONG NORTHWEST WINDS THIS WEEKEND AS HIGH PRESSURE STRENGTHENS REGIONALLY. A LARGE LONG PERIOD WESTERLY SWELL WILL CONTINUE TO MOVE INTO THE COASTAL WATERS THROUGH TODAY THEN GRADUALLY DIMINISH TOMORROW.

Today
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 11 to 12 ft at 16 seconds. Patchy dense fog late in the morning.
Tonight
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 9 to 12 ft at 15 seconds. Patchy dense fog after midnight.
Sun
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 9 to 11 ft at 14 seconds. Patchy dense fog in the morning.
Sun Night
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 7 to 9 ft at 13 seconds.
Washingtons Birthday
NW winds 10 to 20 kt. Wind waves 3 to 5 ft. W swell 5 to 7 ft at 11 seconds.
Tue
NE winds 10 kt. Wind waves 2 ft or less. W swell 5 to 7 ft.
Wed
SW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 6 to 8 ft. Chance of rain...then rain likely. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 9 to 11 feet at 16 seconds. across the bar...combined seas 11 to 13 feet at 16 seconds with occasional larger breakers. Maximum ebb current of 2.3 knots at 08:13 pm saturday and 3.0 knots at 08:25 am sunday.
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ABOUT THIS FORECAST

Last Update: 830 AM PST SAT FEB 13 2016
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