Heavy Snow & Ice Across Portions of the Plains and Midwest; Unsettled in the Pacific Northwest

Heavy snow and freezing rain will impact portions of the Plains, upper Midwest, and Great Lakes into Monday. Significant snow accumulations and gusty winds are likely in some areas. Farther to the south, rain and a few thunderstorms are expected over the Mississippi, Tennessee, and Ohio Valleys. Heavy rain & mountain snowfall will also continue from northern California into the Pacific Northwest.
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Last Update: 821 AM PST Sun Jan 21 2018

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12NM SW San Francisco CA

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...
Synopsis: PZZ500-220530- 821 AM PST Sun Jan 21 2018 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Winds will increase and become southwesterly later this morning, especially for the northern waters, ahead of an approaching weak cold front. The cold front is forecast to pass through Monday morning and winds will switch out of the north. Small Craft Advisories are in place for most coastal water zones mainly due to squared and hazardous seas over the next couple of days. A new northwest swell train arrives by this evening. $$

Today
W winds 5 to 10 kt, becoming SW 10 to 15 kt this afternoon. Wind waves 2 ft or less, then 2 to 3 ft this afternoon. W swell 5 to 10 ft at 12 seconds. A chance of rain.
Tonight
S winds 10 to 20 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. W swell 7 to 12 ft at 17 seconds. Rain likely.
Mon
SW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 9 to 12 ft at 15 seconds. A slight chance of rain in the morning.
Mon Night
N winds 5 to 10 kt. Wind waves 2 ft or less. W swell 7 to 11 ft at 14 seconds.
Tue
NE winds 5 to 15 kt. Wind waves 2 ft or less. W swell 6 to 9 ft at 13 seconds.
Tue Night
NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft at 19 seconds. A chance of rain after midnight.
Wed
S winds 10 to 20 kt, becoming W. Wind waves 3 to 4 ft. W swell 5 to 10 ft. A chance of rain.
Thu
W winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 10 to 15 ft. A chance of showers. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 7 to 9 ft at 12 seconds. across the bar...combined seas 7 to 9 ft at 12 seconds. Maximum ebb current of 2.7 knots at 06:55 pm sunday and 1.8 knots at 08:01 am monday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Combined seas 7 to 9 ft at 12 seconds. ACROSS THE BAR...Combined seas 7 to 9 ft at 12 seconds. Maximum ebb current of 2.7 knots at 06:55 PM Sunday and 1.8 knots at 08:01 AM Monday.
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ABOUT THIS FORECAST

Last Update: 821 AM PST Sun Jan 21 2018
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