National Weather Service United States Department of Commerce

Tropical Storm Bertha moving toward northeastern Caribbean

The National Hurricane Center is currently monitoring Tropical Storm Bertha as it moves toward the northeastern Caribbean, with maximum sustained winds of 45 mph. A Tropical Storm Warning is in effect for Puerto Rico and the U.S. Virgin Islands, with Bertha expected to pass just south of Puerto Rico on Saturday, before eventually curving to the north and northeast, away from the U.S. mainland.
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Last Update: 253 AM PDT FRI AUG 1 2014

View Nearby Observations

Coastal Waters from Point Reyes to Pigeon Point out to 10 nm

Marine Zone Forecast

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



  • SynopsisHIGH PRESSURE WILL BUILD OFF THE PACIFIC NORTHWEST RESULTING IN INCREASING WINDS IN THE NORTHERN OUTER WATERS. LIGHT NORTHWEST WINDS WILL CONTINUE OVER THE REST OF THE NORTHERN AND CENTRAL WATERS.
  • Today W winds 10 kt. Wind waves 2 ft or less. NW swell 2 to 4 ft at 7 seconds. Patchy fog in the morning.
  • Tonight W winds 10 kt. Wind waves 2 ft or less. NW swell 2 to 4 ft at 7 seconds. Patchy fog after midnight.
  • Sat W winds 10 kt. Wind waves 2 ft or less. NW swell 2 to 4 ft at 7 seconds. Patchy fog in the morning.
  • Sat Night W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 8 seconds. Patchy fog after midnight.
  • Sun W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft at 8 seconds. Patchy fog.
  • Mon SW winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft. Patchy fog.
  • Tue W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft. Patchy fog.

    .....san francisco bar/fourfathom bank forecast.....

    in the deep water channel...combined seas 2 to 3 feet with a dominant swell period of 7 seconds.

    across the bar...combined seas 3 to 4 feet with a dominant swell period of 7 seconds. Maximum ebb current of 1.5 knots at 08:00 am friday and 1.3 knots at 08:04 pm friday.




.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 2 TO 3 FEET WITH A DOMINANT SWELL PERIOD OF 7 SECONDS. ACROSS THE BAR...COMBINED SEAS 3 TO 4 FEET WITH A DOMINANT SWELL PERIOD OF 7 SECONDS. MAXIMUM EBB CURRENT OF 1.5 KNOTS AT 08:00 AM FRIDAY AND 1.3 KNOTS AT 08:04 PM FRIDAY.

Additional Forecasts and Information

Zone Area Forecast for Coastal Waters from Point Reyes to Pigeon Point out to 10 nm
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