Coastal Flood Warnings/Watches/Statements
Issued by NWS San Francisco Bay Area, CA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13
000
WHUS46 KMTR 202246
CFWMTR

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
246 PM PST SAT DEC 20 2014

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

.KING TIDE WILL BEGIN TO OCCUR ON SUNDAY LASTING 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.

CAZ505-509-529-530-210600-
/O.EXB.KMTR.CF.Y.0003.141221T1700Z-141223T2300Z/
/O.EXT.KMTR.SU.Y.0007.000000T0000Z-141221T0600Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-NORTHERN MONTEREY BAY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
246 PM PST SAT DEC 20 2014

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 AM SUNDAY TO 3 PM PST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A COASTAL FLOOD ADVISORY...WHICH IS IN EFFECT FROM 9 AM
SUNDAY TO 3 PM PST TUESDAY.

* TIMING...GENERALLY SPEAKING...EXTREME HIGH TIDES ARE EXPECTED
  TO OCCUR DURING THE MID TO LATE MORNING HOURS OF DECEMBER
  21ST...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.

* WAVES AND SURF...NORTHWEST SWELL OF 14 TO 17 FEET WITH A PERIOD
  OF 17 SECONDS WILL REMAIN A POSSIBILITY THROUGH 10PM. OCCASIONAL
  BREAKERS OF 24 FEET ALSO WILL BE POSSIBLE.

* 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.

&&

$$

CAZ006-210600-
/O.EXT.KMTR.SU.Y.0007.000000T0000Z-141221T0600Z/
/O.EXT.KMTR.CF.Y.0003.141221T1700Z-141223T2300Z/
SAN FRANCISCO-
246 PM PST SAT DEC 20 2014

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...COASTAL FLOOD ADVISORY NOW IN EFFECT FROM 9 AM SUNDAY TO 3 PM
PST TUESDAY...

* TIMING...GENERALLY SPEAKING...EXTREME HIGH TIDES ARE EXPECTED
  TO OCCUR DURING THE MID TO LATE MORNING HOURS OF DECEMBER
  21ST...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.

* WAVES AND SURF...NORTHWEST SWELL OF 14 TO 17 FEET WITH A PERIOD
  OF 17 SECONDS WILL REMAIN A POSSIBILITY THROUGH 10PM. OCCASIONAL
  BREAKERS OF 24 FEET ALSO WILL BE POSSIBLE.

* LOCATIONS...LOW LYING AREAS ALONG THE IMMEDIATE COAST AND BAY
  FRONT INCLUDING PARKING LOTS...COASTAL
  TRAILS...SIDEWALKS...MARSHES...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...

IT IS EXTREMELY DANGEROUS TO FISH OR OBSERVE WAVES FROM EXPOSED
COASTAL STRUCTURES OR ROCKS DURING HIGH SURF CONDITIONS. VERY
LARGE WAVES CAN SUDDENLY SWEEP ACROSS PREVIOUSLY DRY AREAS.
SWIMMING OR SURFING IN THESE WAVES MAY BE DANGEROUS FOR ANYONE.

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

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

&&

$$

CAZ506-508-210600-
/O.EXT.KMTR.CF.Y.0003.141221T1700Z-141223T2300Z/
NORTH BAY INTERIOR VALLEYS-SAN FRANCISCO BAY SHORELINE-
246 PM PST SAT DEC 20 2014

...COASTAL FLOOD ADVISORY NOW IN EFFECT FROM 9 AM SUNDAY TO 3 PM
PST TUESDAY...

* TIMING...GENERALLY SPEAKING...EXTREME HIGH TIDES ARE EXPECTED
  TO OCCUR DURING THE MID TO LATE MORNING HOURS OF DECEMBER
  21ST...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.

&&

$$


HTTP://WWW.WEATHER.GOV/SANFRANCISCO






USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.