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Coastal Flood Advisory

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
529 AM PST MON DEC 22 2014

...KING TIDES WILL IMPACT COASTLINE AND WATERFRONTS THROUGH
TUESDAY...

.KING TIDE WILL BEGIN TO IMPACT THE REGION THROUGH TUESDAY. THESE
HIGH SEASONAL TIDES OCCUR WHEN THE EARTH...MOON AND SUN ARE IN
ALIGNMENT AND IN CLOSE PROXIMITY TO ONE ANOTHER WHICH RESULTS IN
MAXIMUM GRAVITATION FORCE ON TIDAL CYCLES. EXPECT HIGHER HIGH
TIDES AND LOWER LOW TIDES AS A RESULT OF THIS PHENOMENON EACH WITH
THEIR OWN SET OF UNIQUE IMPACTS. FOR HIGHER HIGH TIDES...LOW LYING
AREAS TYPICALLY FLOODED DURING HIGH TIDES WILL BE FURTHER
SUBMERGED AND COASTAL AREAS TYPICALLY NOT IMPACTED MAY BECOME
INUNDATED BY SEAWATER. FOR LOWER LOW TIDES... BOAT KEELS MAY TOUCH
HARBOR BOTTOM...STRONG RIP CURRENTS MAY OCCUR ON COASTAL
BEACHES...AND STRONG CURRENTS AND BREAKING WAVES IN HARBOR
ENTRANCES.

CAZ006-505-506-508-509-529-530-230400-
/O.CON.KMTR.CF.Y.0003.000000T0000Z-141223T2300Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY INTERIOR VALLEYS-SAN FRANCISCO BAY SHORELINE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
529 AM PST MON DEC 22 2014

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
TUESDAY...

* TIMING...GENERALLY SPEAKING...EXTREME HIGH TIDES ARE EXPECTED TO
  OCCUR DURING THE MID TO LATE MORNING HOURS OF DECEMBER 22ND AND
  23RD. EXTREME LOW TIDE WILL OCCUR DURING THE LATE AFTERNOON TO
  LATE EVENING HOURS. THE EXACT TIMING OF TIDES IS LOCATION
  DEPENDENT SO PLEASE VISIT TIDESANDCURRENTS.NOAA.GOV/PORTS/...FOR
  MORE SPECIFIC TIDAL INFORMATION.

* LOCATIONS...LOW LYING AREAS ALONG THE IMMEDIATE COAST AND BAY
  FRONT INCLUDING MARSHES AND SLOUGHS. THESE LOCATIONS MAY
  INCLUDE PARKING LOTS...COASTAL TRAILS...SIDEWALKS...
  UNDERPASSES AND ROADWAYS.

* IMPACTS...SEA WATER ON ROADWAYS...PARKING LOTS...TRAILS AND
  SIDEWALKS. PEOPLE VISITING BEACHES MAY LOSE ENTRY AND EXIT TO
  COVES AND NARROW BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.
DO NOT LEAVE YOUR VEHICLE IN LOW LYING PARKING LOTS NEAR THE
COAST OR BAY FRONT. DO NOT TRAVEL THROUGH FLOODED ROADWAYS. IF
VISITING THE COAST AVOID NARROW BEACHES AND COVES.

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$


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