WEATHER »
  • Special Weather Statement for San Fransisco Peninsula Coast County, California
  • Special Weather Statement issued January 23 at 4:23AM PST by NWS
  • Effective: Tuesday, January 23, 2018 at 4:23 a.m.
  • Expires: Tuesday, January 23, 2018 at 6:30 a.m.
  • ...THE TSUNAMI WATCH HAS BEEN CANCELED FOR THE CALIFORNIA COAST...
    THE TSUNAMI WATCH HAS BEEN CANCELED FOR THE CALIFORNIA COAST AS NO
    SIGNIFICANT COASTAL FLOODING IS EXPECTED TO BE PRODUCED BY THIS
    EVENT. WHILE WE MAY NOT SEE COASTAL FLOODING FROM THIS EVENT
    CURRENTS ALONG THE COAST, IN THE BAYS AND IN HARBORS WILL BE
    STRONGER THAN AVERAGE. MARINERS AND THE PUBLIC SHOULD USE AN
    ABUNDANCE OF CAUTION NEAR THE COAST.

  • Special Weather Statement for San Fransisco Peninsula Coast County, California
  • Special Weather Statement issued January 20 at 12:25PM PST until January 22 at 9:00PM PST by NWS
  • Effective: Wednesday, January 20, 2016 at 12:25 p.m.
  • Expires: Friday, January 22, 2016 at 9 p.m.
  • ...MORE RAIN ON THE WAY BEGINNING LATE THURSDAY...
    ...HEAVIEST RAIN FORECAST FRIDAY EVENING INTO SATURDAY MORNING...
    A SYSTEM WILL APPROACH THE SAN FRANCISCO AND MONTEREY BAY REGION
    LATER THIS WEEK WITH RAIN FORECAST TO RETURN TO THE NORTH BAY
    LATE THURSDAY EVENING AND THEN DOWN TO THE REST OF OUR REGION
    THURSDAY NIGHT INTO FRIDAY MORNING. RAIN WILL SWITCH OVER TO
    SHOWERS BY LATE IN THE MORNING OR EARLY IN THE AFTERNOON ON
    FRIDAY.
    A SECOND PIECE OF ENERGY WILL QUICKLY MOVE TO OUR REGION WITH
    ANOTHER ROUND OF RAIN FORECAST FOR FRIDAY EVENING INTO SATURDAY.
    THIS SECOND FEATURE WILL BE MORE UNSTABLE AND HAVE A GREATER
    POTENTIAL FOR PRODUCING MODERATE TO HEAVY RAIN AT TIMES. OF
    BIGGEST CONCERN IS FOR LATE FRIDAY INTO SATURDAY MORNING WHEN A FRONT
    IS EXPECTED TO MOVE THROUGH WHICH WILL LIKELY LEAD TO THE HIGHEST
    RAINFALL RATES. RAIN WILL SWITCH OVER TO SHOWERS LATER ON SATURDAY
    WITH A FEW THUNDERSTORMS POSSIBLE. IN ADDITION TO THE
    PRECIPITATION, SOUTH TO SOUTWEST WINDS WILL BE ON THE INCREASE.
    MANY LOCATIONS WILL SEE WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH
    FOR FRIDAY INTO SATURDAY.
    RAINFALL AMOUNTS BY SATURDAY AFTERNOON ARE FORECAST TO BE GREATEST
    OVER COASTAL RANGES WHERE 2 TO 4 INCHES WILL BE COMMON. A FEW
    LOCAL SPOTS WILL LIKELY SEE UPWARD OF 6". FOR URBAN LOCATIONS,
    AMOUNTS WILL VARY FROM 1.5" TO 2.5" FOR THE NORTH BAY, TO .75" TO
    1.25" FOR THE REST OF THE AREA.
    AT THE PRESENT TIME, THE BEST POTENTIAL FOR HYDROLOGICAL ISSUES
    WILL BE WITH THE SECOND PIECE OF ENERGY ESPECIALLY LATE FRIDAY
    INTO EARLY SATURDAY. AREAS OF PARTICULAR CONCERN INCLUDE SPOTS
    THAT EXPERIENCED MINOR FLOODING IN THE PAST SYSTEM INCLUDING
    HIGHWAY 1 ALONG THE BIG SUR COAST, PLUS PORTIONS OF SANTA CRUZ AND
    SONOMA COUNTIES.
    CALIFORNIA KING TIDE WILL ALSO OCCUR FRIDAY MORNING AT 6.6 FEET
    WITH A NEARLY IDENTICAL TIDAL HEIGHT SATURDAY MORNING AT 1030 AM
    OF 6.5 FEET. THE OTHER HIGH TIDE WILL BE 5.2 FEET AT 1139 PM
    FRIDAY NIGHT. THE HIGH TIDES FRIDAY AND SATURDAY MORNING WILL LEAD
    TO SOME FLOODING. THE COMBINATION OF RAIN AND HIGH TIDE WILL LEAD
    TO A HEIGHTENED RISK FOR FLOODING.
    A LONG PERIOD WESTERLY SWELL WILL ALSO BE PRESENT ALONG THE COAST
    THURSDAY NIGHT THROUGH FRIDAY WHICH WILL LEAD TO HAZARDOUS COASTAL
    CONDITIONS.
    PERSONS IN THE SAN FRANCISCO AND MONTEREY BAY REGION WITH OUTDOOR
    PLANS FRIDAY AND SATURDAY SHOULD CLOSELY MONITOR THE LATEST
    FORECASTS. IN ADDITION, PERSONS LOCATED NEAR STREAMS OR LOCATIONS
    PRONE TO FLOODING SHOULD BE PREPARED FOR VERY RAPID RISES AND THE
    POTENTIAL FOR FLOODING.

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