National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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38NM WNW San Francisco CA

Marine Point Forecast [NOTICE]

Overnight

Slight Chc Thunderstorms

W 6kt
3ft

Tuesday

Slight Chc Sprinkles

W 7kt
3ft

Tuesday
Night

Patchy Fog

W 9kt
3-4ft

Wednesday

Patchy Fog

Winds IncreasingW 6kt
3-4ft

Wednesday
Night

Patchy Fog

WNW 12kt
4ft

Thursday

Patchy Fog

WNW 11kt
4ft

Thursday
Night

Patchy Fog

WNW 16kt
5ft

Friday

Patchy Fog

WNW 13kt
4-5ft

Friday
Night

Patchy Fog

WNW 17kt
6ft

Associated Zone Forecast which includes this point

Last Update: 2:04 pm PDT Jul 28, 2014
Forecast Valid: 2am PDT Jul 29, 2014-6pm PDT Aug 4, 2014

View Nearby Observations

Detailed Forecast

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST.....

  • SynopsisMID-LEVEL MOISTURE WILL CONTINUE TO STREAM NORTHWARD ACROSS THE REGION THROUGH TUESDAY AND POSSIBLY WEDNESDAY BRINGING A SLIGHT CHANCE OF SHOWERS OR THUNDERSTORMS. OTHERWISE...NORTHERLY FLOW WILL CONTINUE OVER THE COASTAL WATERS WITH GENERALLY GENTLE SEAS THROUGH THE REMAINDER OF THE WEEK.
  • Overnight W wind around 6 kt. A slight chance of showers and thunderstorms. Patchy fog. Mixed swell...WNW 3 ft at 8 seconds and SSW 1 ft at 14 seconds. Wind waves around 1 ft.
  • Tuesday W wind around 7 kt. A slight chance of sprinkles. Patchy fog before 11am. Mixed swell...WNW 2 to 3 ft at 7 seconds and SW 1 ft at 13 seconds. Wind waves around 1 ft.
  • Tuesday Night W wind 5 to 9 kt. Patchy fog after 11pm. Mixed swell...WNW 3 ft at 7 seconds and SW 1 to 2 ft at 13 seconds becoming S. Wind waves around 1 ft.
  • Wednesday Variable winds less than 5 kt becoming W around 6 kt in the afternoon. Patchy fog before 8am. Mixed swell...WNW 3 ft and SW 1 ft. Wind waves around 1 ft.
  • Wednesday Night WNW wind around 12 kt. Patchy fog after 2am. Mixed swell...WNW 4 ft and SW 1 ft. Wind waves around 1 ft.
  • Thursday WNW wind 9 to 11 kt. Patchy fog before 8am. Mixed swell...WNW 4 ft and SW 1 ft. Wind waves around 1 ft.
  • Thursday Night WNW wind around 16 kt. Patchy fog after 11pm. Mixed swell...WNW 5 ft and SW 1 ft. Wind waves around 2 ft.
  • Friday WNW wind 10 to 13 kt. Patchy fog before 11am. Mixed swell...WNW 4 to 5 ft and SW 1 ft. Wind waves around 1 ft.
  • Friday Night WNW wind 14 to 17 kt. Patchy fog after 11pm. Mixed swell...WNW 5 ft and SW 1 ft. Wind waves around 2 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 2 TO 4 FEET WITH A DOMINANT SWELL PERIOD OF 15 SECONDS. ACROSS THE BAR...COMBINED SEAS 3 TO 5 FEET WITH A DOMINANT SWELL PERIOD OF 15 SECONDS. MAXIMUM EBB CURRENT OF 2 KNOTS AT 06:05 AM TUESDAY AND 1.2 KNOTS AT 06:41 PM TUESDAY.

*Notices:
  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.