Increasing Risk for Flash and River Flooding Through the Weekend

A storm system will track across the central U.S. and set the stage for severe thunderstorms and widespread heavy rainfall through the weekend. There will be a threat for flash and river flooding for portions of the Southern Plains into the Upper Midwest.
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Last Update: 220 PM PDT FRI APR 28 2017

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13NM WNW San Francisco CA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT...

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

NORTHWEST WINDS WILL REMAIN STRONG AND GUSTY THROUGH THE WEEKEND AS HIGH PRESSURE SITS OFF THE COAST. OCCASIONAL GALE FORCE GUSTS ARE POSSIBLE ACROSS THE COASTAL WATERS. STEEP FRESH SWELLS WITH RELATIVELY SHORT PERIODS WILL MAKE SEAS HAZARDOUS THIS WEEKEND... IN ADDITION TO THE GUSTY WINDS.

Tonight
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 8 to 10 ft at 10 seconds.
Sat
NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 6 to 8 ft at 11 seconds.
Sat Night
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 6 to 8 ft at 10 seconds.
Sun
NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 7 to 9 ft at 10 seconds.
Sun Night
NW winds 20 to 30 kt. Wind waves 3 to 5 ft. NW swell 8 to 10 ft at 9 seconds.
Mon
NW winds 20 to 30 kt. Wind waves 4 to 6 ft. NW swell 9 to 11 ft.
Tue
NW winds 20 to 30 kt. Wind waves 3 to 5 ft. NW swell 8 to 10 ft.
Wed
NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 6 to 8 ft...shifting to the west 5 to 7 ft and southwest 3 ft. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 6 to 8 ft at 11 seconds decreasing to 5 to 7 ft at 10 seconds saturday. across the bar...combined seas 7 to 9 ft at 11 seconds decreasing to 6 to 8 ft at 10 seconds saturday. Maximum ebb current of 1.2 knots at 05:36 pm friday and 2 knots at 05:30 am saturday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 6 TO 8 FT AT 11 SECONDS DECREASING TO 5 TO 7 FT AT 10 SECONDS SATURDAY. ACROSS THE BAR...COMBINED SEAS 7 TO 9 FT AT 11 SECONDS DECREASING TO 6 TO 8 FT AT 10 SECONDS SATURDAY. MAXIMUM EBB CURRENT OF 1.2 KNOTS AT 05:36 PM FRIDAY AND 2 KNOTS AT 05:30 AM SATURDAY.
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ABOUT THIS FORECAST

Last Update: 220 PM PDT FRI APR 28 2017
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