High Surf Advisory 4, NWS San Francisco Bay Area, CA

462 
WHUS46 KMTR 270148
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
548 PM PST THU JAN 26 2012

...HIGH SURF ADVISORY WILL EXPIRE AT 6 PM THIS EVENING...

CAZ006-505-509-529-530-270300-
/O.EXP.KMTR.SU.Y.0004.000000T0000Z-120127T0200Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
548 PM PST THU JAN 26 2012

...HIGH SURF ADVISORY WILL EXPIRE AT 6 PM PST THIS EVENING...

THE HIGH SURF ADVISORY WILL EXPIRE AT 6 PM PST THIS EVENING. 
THE LARGEST WAVES HAVE NOW PEAKED AND WILL CONTINUE TO SLOWLY
SUBSIDE OVERNIGHT INTO FRIDAY.

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
239 PM PST THU JAN 26 2012

.DISCUSSION...AS OF 2:40 PM PST THURSDAY...CLOUDS HAVE PERSISTED
IN MANY AREAS ACROSS THE DISTRICT...AND SOME LIGHT SHOWERS HAVE
OCCURRED FROM AREAS AROUND THE SF BAY AS WELL AS IN THE NORTH BAY.
ONLY A FEW HUNDREDTHS AT MOST WERE REPORTED.

THE PRESENCE OF CLOUDS HAS PREVENTED MUCH WARMING TODAY THUS MOST
AREA TEMPERATURES ARE RUNNING COOLER THAN YESTERDAY AT THIS TIME
WITH READINGS IN THE UPPER 50S TO MID 60S. SURFACE PRESSURE
GRADIENTS REMAIN LIGHT TO MODERATE ONSHORE WITH 1 MB FROM SFO TO
SAC...AND 4.6 MB FROM SFO TO WMC. THE SURFACE FLOW IS STILL EXPECTED
TO SWITCH TO OFFSHORE BY TOMORROW AFTERNOON WHEN THE GRADIENT
SWITCHES FROM POSITIVE TO NEGATIVE. WINDS WILL PICK UP IN THE
AFTERNOON...ESPECIALLY IN THE HILLS...WITH GUSTS TO 30 MPH
POSSIBLE.

THE HIGH PRESSURE RIDGE IS NOW FORECAST TO REMAIN STRONG ENOUGH TO
KEEP RAIN CHANCES TO OUR NORTH THROUGH SEVEN DAYS. EVEN THE MONDAY
AND WEDNESDAY IMPULSES ARE PROGGED TO REMAIN WELL TO THE NORTH.
THUS...DRY CONDITIONS TO PERSIST UNTIL FEBRUARY.

&&

.AVIATION...AS OF 9:20 AM PST THURSDAY...DECENT AMOUNT OF LOW
CLOUDS ACROSS THE REGION...WITH THE EXCEPTION OF MONTEREY BAY. A
WEAK FRONT TO THE NORTH AND ONSHORE FLOW WILL LIKELY KEEP LOW
CLOUDS AND PATCHY FOG THROUGH MUCH OF THE DAY AND TONIGHT. DO
EXPECT SOME LOW CLOUDS TO CREEP INTO MONTEREY BAY LATER TODAY.
WILL FORECAST FOR LIFTING CIGS LATER TODAY AS THE BOUNDARY APPROACHES.
OVERALL CONF IS MEDIUM.

VICINITY OF KSFO...LIFR AND IFR CIGS THROUGH THIS AFTERNOON THEN
TRANSITIONING TO MVFR CIGS. PATCHY LOW VSBY WILL BE POSSIBLE
THROUGH OUT THE DAY AS WELL 1-3 MILES AT TIMES. LIGHT ONSHORE
WINDS.

KSFO BRIDGE APPROACH...SIMILAR TO SFO.

MONTEREY BAY AREA TERMINALS...VFR CONDITIONS THROUGH THIS AFTERNOON.
WILL BRING IN CIGS WITH IFR TO MVFR CONDITIONS LATER THIS AFTERNOON
AND TONIGHT.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
 .TNGT...HIGH SURF ADVISORY...COASTAL AREAS UNTIL 6 PM
         SCA...PT ARENA TO PIGEON PT 10-60 NM FROM 9 PM
         SCA...PT PINOS TO PT PIEDRAS BLANCAS 0-10 NM
         SCA...PIGEON PT TO PT PIEDRAS BLANCAS 10-60 NM
         SCA...PT ARENA TO PT REYES 0-10 NM FROM 9 PM
         SCA...ROUGH BAR ADVISORY FOR SF BAR UNTIL 9 PM

&&

PUBLIC FORECAST: SIMS
AVIATION/MARINE: MM

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
242 PM PST THU JAN 26 2012

CAZ006-505-509-529-530-270200-
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
242 PM PST THU JAN 26 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR COASTAL SECTIONS OF THE SAN
FRANCISCO BAY AND MONTEREY BAY AREAS.

.DAY ONE...THURSDAY AFTERNOON AND THURSDAY NIGHT

LARGE WESTERLY SWELLS WILL CONTINUE TO IMPACT THE COASTLINE
THROUGH 6 PM THIS AFTERNOON.

*  HIGH SURF ADVISORY....SEE SFOCFWMTR WHUS46 KMTR FOR DETAILS  *

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS PER STANDARD OPERATING PROCEDURES.