Small Craft Advisory 331, NWS San Francisco Bay Area, CA

970 
WHUS76 KMTR 121503
MWWMTR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
803 AM PDT MON SEP 12 2011

PZZ530-122300-
/O.CON.KMTR.SC.Y.0331.110912T2200Z-110913T0500Z/
SAN FRANCISCO/SAN PABLO/SUISUN BAYS AND THE WEST DELTA-
803 AM PDT MON SEP 12 2011

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 10 PM PDT THIS EVENING...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 10 PM PDT THIS EVENING FOR SAN FRANCISCO BAY.

* WINDS: WEST WINDS INCREASING TO 15 TO 25 KT THIS AFTERNOON AND 
  CONTINUING THIS EVENING. WINDS DECREASING TO 5 TO 15 KT BY 
  MIDNIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS... ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

745 
WHUS76 KMTR 122126
MWWMTR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
226 PM PDT MON SEP 12 2011

PZZ530-130430-
/O.CON.KMTR.SC.Y.0331.110912T2200Z-110913T0500Z/
SAN FRANCISCO/SAN PABLO/SUISUN BAYS AND THE WEST DELTA-
226 PM PDT MON SEP 12 2011

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR SAN FRANCISCO BAY.

* WINDS: WEST WINDS INCREASING TO 15 TO 25 KT THIS EVENING. WINDS
  WILL BE STRONGEST IN THE SLOT FROM THE GOLDEN GATE TO ANGEL
  ISLAND AND INTO THE WEST DELTA. WIND WILL DECREASE 5 TO 15 KT
  OVERNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS... ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

408 
WHUS76 KMTR 130348
MWWMTR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
848 PM PDT MON SEP 12 2011

PZZ530-131200-
/O.CAN.KMTR.SC.Y.0331.000000T0000Z-110913T0500Z/
/O.NEW.KMTR.SC.Y.0332.110913T2000Z-110914T0400Z/
SAN FRANCISCO/SAN PABLO/SUISUN BAYS AND THE WEST DELTA-
848 PM PDT MON SEP 12 2011

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM TO 9 PM PDT TUESDAY...


THE NATIONAL WEATHER SERVICE SAN FRANCISCO HAS ISSUED A SMALL
CRAFT ADVISORY...WHICH IS IN EFFECT FROM 1 PM TO 9 PM PDT
TUESDAY. THE SMALL CRAFT ADVISORY HAS BEEN CANCELLED. 

* WINDS: WEST WINDS WILL INCREASE TO 15 TO 25 KT TUESDAY AFTERNOON
  AND PERSIST THROUGH THE EVENING HOURS. STRONGEST WINDS EXPECTED
  NEAR THE GOLDEN GATE AND ANGEL ISLAND AS WELL AS INTO THE WEST
  DELTA. WIND WILL DECREASE TO 5 TO 15 KT TUESDAY NIGHT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS... ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1039 PM PDT SUN SEP 11 2011

.DISCUSSION...AS OF 8:30 PM PDT SUNDAY...UPPER LEVEL LOW CONTINUES
OFF THE SOUTHERN CALIFORNIA COAST. SOME MOISTURE WRAPPING AROUND
THE LOW SPREAD FROM THE CENTRAL VALLEY INTO OUR CWA THIS MORNING
BRINGING A FEW LIGHT SHOWERS. PRECIPITATION AMOUNTS WERE VERY
LIGHT...NO MORE THAN A FEW HUNDREDTHS OF AN INCH. BY AFTERNOON THE
ONLY SHOWERS IN THE CWA WERE IN THE SOUTHERN MONTEREY AND SAN
BENITO COUNTIES. LATEST SATELLITE AND RADAR IMAGE SHOWS THESE
SHOWERS DIMINISHING. CURRENTLY THUNDERSTORMS CONTINUE OVER THE
SIERRA NEVADA BUT LATEST MODELS SHOW THESE CELLS DISSIPATING
AFTER DARK THUS ENDING THE CHANCES OF RAIN FOR OUR CWA. FORECAST
HAS BEEN UPDATED TO REMOVE CHANCE OF THUNDERSTORMS FOR TONIGHT.

TEMPERATURES WERE COOL TODAY DUE TO THE CLOSE PROXIMITY OF THE
UPPER LOW. SOUTH TO SOUTHWEST FLOW BROUGHT WARMER TEMPERATURES TO
THE SOUTHERN MRY BAY AREA WHILE KEEPING SANTA ROSA UNDER LOW
OVERCAST FOR MOST OF THE DAY.

THE UPPER LOW WILL MOVE INLAND MONDAY AND TUESDAY AND TEMPERATURES
WILL WARM UP A FEW DEGREES EACH DAY. A MORE TYPICAL ONSHORE FLOW
WILL DEVELOP WITH COASTAL LOW CLOUDS AND FOG CONTINUING AT THE COAST.
A FEW WEAK UPPER TROUGH WILL MOVE THROUGH THE AREA DURING THE
MIDDLE AND END OF THE WEEK SO TEMPERATURES WILL CONTINUE NEAR OR
SLIGHTLY BELOW NORMAL.

&&

.AVIATION...AS OF 10:40 PM PDT SUNDAY...MARINE INVERSION LAYER IS
CURRENTLY POORLY DEFINED. HOWEVER INVERSION LAYER IS STILL PRESENT
AROUND 2000 FEET AND WILL SLOWLY STRENGTHEN OVERNIGHT WITH 2.7 MB
SFO-SAC ONSHORE FLOW. LATEST FOG PRODUCT SHOWS LOW CLOUDS
INCREASING ALONG THE COAST AND IN THE NORTH BAY WITH OVC015 AT
KHAF. EXPECT CIGS TO SLOWLY SPREAD INLAND OVERNIGHT AND COVER MOST
OF THE TERMINALS AND COASTAL VALLEYS BY 13Z MONDAY...WITH GRADUAL
CLEARING BY LATE MORNING.

VICINITY OF KSFO...VFR CONDITIONS TIL ABOUT 09-10Z...THEN LOW CIGS
DEVELOPING KOAK AND EVENTUALLY FILLING MOST OF THE BAY BY MORNING.
EARLY ESTIMATE FOR BURN OFF AT KSFO AROUND 18Z MONDAY.

KSFO BRIDGE APPROACH...SIMILAR TO KSFO.

MONTEREY BAY AREA TERMINALS...INVERSION LAYER AROUND 2000 FEET AND
WILL GET BETTER DEFINED OVERNIGHT. EXPECT CIGS TO REFORM AFTER
MIDNIGHT AND COVER MONTEREY BAY AND SALINAS VALLEY BY 11-13Z. SLOW
CLEARING BACK TO THE COAST BY 19Z MONDAY.

&&

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
     .TNGT...NONE.

PUBLIC FORECAST: W PI
AVIATION/MARINE: RWW