Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect.
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Last Update: 846 PM PDT Sat Aug 19 2017

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21NM SSW San Francisco CA

Marine Zone Forecast


Synopsis: PZZ500-201045- 846 PM PDT Sat Aug 19 2017 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Moderate northwest winds will continue across the northern outer waters tonight as high pressure builds in from the west. Winds are forecast to decrease below small craft advisory criteria by Sunday evening. In addition to breezy winds, locally steep wind waves will also continue tonight and into Sunday. $$

Tonight
S winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell NW 3 to 5 ft at 10 seconds and S 3 ft at 15 seconds. Patchy fog after midnight.
Sun
S winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 4 to 6 ft at 10 seconds. Patchy fog in the morning.
Sun Night
SW winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 10 seconds. Patchy fog after midnight.
Mon
SW winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 10 seconds. Patchy fog in the morning.
Mon Night
W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds. Patchy fog after midnight.
Tue
W winds 10 kt. Wind waves 2 ft or less. NW swell 2 to 4 ft. Swell S 3 ft. Patchy fog.
Wed
W winds 10 to 20 kt. Wind waves 2 to 4 ft. mixed swell NW 2 to 4 ft and S 3 ft.
Thu
NW winds 20 to 30 kt. Wind waves 3 to 5 ft. NW swell 4 to 6 ft. Swell SW 3 ft. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 4 to 5 ft with a dominant swell period of 10 seconds. across the bar...combined seas 4 to 6 ft with a dominant swell period of 10 seconds. Maximum ebb current of 1.9 knots at 02:00 am sunday and 1.1 knots at 03:18 pm sunday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Combined seas 4 to 5 ft with a dominant swell period of 10 seconds. ACROSS THE BAR...Combined seas 4 to 6 ft with a dominant swell period of 10 seconds. Maximum ebb current of 1.9 knots at 02:00 AM Sunday and 1.1 knots at 03:18 PM Sunday.
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ABOUT THIS FORECAST

Last Update: 846 PM PDT Sat Aug 19 2017
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