Beach Hazards Statement 24, NWS Los Angeles, CA

105 
WHUS46 KLOX 181800
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1000 AM PST THU DEC 18 2014

...LARGE AND POSSIBLY DAMAGING SURF MAY IMPACT THE CENTRAL COAST
FRIDAY NIGHT THROUGH SUNDAY...

.A LARGE NORTHWEST SWELL GENERATED BY A STORM IN THE GULF OF
ALASKA WILL LIKELY REACH THE CENTRAL COAST FRIDAY NIGHT. THE SURF
IS EXPECTED TO PEAK ON SATURDAY...WHEN 15 TO 20 FOOT BREAKERS
WILL BE POSSIBLE. LOCAL SETS TO 25 FEET WILL BE POSSIBLE ON
FAVORED NORTHWEST FACING BEACHES. THE LARGE SURF MAY CONTINUE
INTO SUNDAY EVENING. IF SURF THIS LARGE DEVELOPS...IT WILL BE
CAPABLE OF CAUSING SIGNIFICANT BEACH EROSION AND POSSIBLE DAMAGE
TO STRUCTURES SUCH AS PIERS.

CAZ034-035-190200-
/O.CON.KLOX.BH.S.0024.141220T0800Z-141222T0800Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
1000 AM PST THU DEC 18 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE FRIDAY
NIGHT THROUGH SUNDAY EVENING...

* SURF AND TIMING...SURF HEIGHTS MAY EXCEED 10 FEET AS EARLY AS 
  MIDNIGHT ON FRIDAY. THE PEAK OF THE EVENT WILL LIKELY OCCUR ON 
  SATURDAY WHEN 15 TO 20 FOOT BREAKERS...WITH LOCAL SETS TO 25 
  FEET WILL BE POSSIBLE FOR EXPOSED NORTHWEST FACING BEACHES. 
  SURF SHOULD GRADUALLY SUBSIDE THROUGH SUNDAY...BUT MAY REMAIN 
  ABOVE 10 FEET THROUGH LATE SUNDAY EVENING. A HIGH SURF 
  ADVISORY WILL LIKELY BE ISSUED WITH THIS EVENT AS IT GETS 
  CLOSER AND CONFIDENCE IN TIMING INCREASES. 

* IMPACTS...IMPACTS MAY INCLUDE SIGNIFICANT BEACH EROSION... 
  DAMAGE TO STRUCTURES SUCH AS PIERS...MINOR COASTAL FLOODING... 
  DANGEROUS RIP CURRENTS...AND SNEAKER WAVES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS TO BEACH AND
SURF ZONE SAFETY ARE EXPECTED OR OCCURRING. CAUTION SHOULD BE
USED WHEN IN OR NEAR THE WATER. STAY NEAR OCCUPIED LIFEGUARD
TOWERS AND NEVER SWIM ALONE. IF CAUGHT IN A RIP CURRENT...SWIM
PARALLEL TO THE SHORE.

&&

$$

284 
WHUS46 KLOX 190148
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
548 PM PST THU DEC 18 2014

...LARGE AND POTENTIALLY DAMAGING SURF TO IMPACT THE CENTRAL COAST
FRIDAY NIGHT THROUGH SUNDAY...

...MINOR COASTAL FLOODING FOR THE CENTRAL COAST THIS WEEKEND NEAR
 TIMES OF HIGH TIDE...

A LARGE NORTHWEST SWELL GENERATED BY A STORM IN THE GULF OF
ALASKA WILL LIKELY REACH THE CENTRAL COAST FRIDAY
EVENING...WITH SURF BUILDING RAPIDLY OVERNIGHT. THE SURF IS
EXPECTED TO PEAK ON SATURDAY...WHEN 15 TO 20 FOOT BREAKERS WILL BE
LIKELY ON NORTHWEST FACING BEACHES. LOCALLY HIGHER SETS IN EXCESS
OF 20 FEET WILL BE POSSIBLE ON WELL EXPOSED NORTHWEST FACING
BEACHES. LARGE SURF IS EXPECTED TO CONTINUE ON SUNDAY.
IF SURF THIS LARGE DEVELOPS...IT WILL BE CAPABLE OF CAUSING
SIGNIFICANT BEACH EROSION AND POSSIBLE DAMAGE TO STRUCTURES SUCH
AS PIERS. IN ADDITION...THERE WILL BE THE POTENTIAL FOR MINOR
COASTAL FLOODING NEAR TIMES OF HIGH TIDE.

SOME OF THE LARGE SWELL ENERGY IS EXPECTED TO AFFECT THE BEACHES
SOUTH OF POINT CONCEPTION. A HIGH SURF ADVISORY MAY BE REQUIRED
FOR THE VENTURA COUNTY BEACHES.

CAZ034-035-191400-
/O.CAN.KLOX.BH.S.0024.141220T0800Z-141222T0800Z/
/O.NEW.KLOX.SU.Y.0028.141220T0500Z-141222T0800Z/
/O.NEW.KLOX.CF.Y.0002.141220T1100Z-141221T2300Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
548 PM PST THU DEC 18 2014

...HIGH SURF ADVISORY IN EFFECT FROM 9 PM FRIDAY TO MIDNIGHT PST
SUNDAY NIGHT...

...COASTAL FLOOD ADVISORY IN EFFECT FROM 3 AM SATURDAY TO 3 PM
PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 9 PM FRIDAY TO
MIDNIGHT PST SUNDAY NIGHT. A COASTAL FLOOD ADVISORY HAS ALSO BEEN
ISSUED. THIS COASTAL FLOOD ADVISORY IS IN EFFECT FROM 3 AM
SATURDAY TO 3 PM PST SUNDAY. 

* SURF AND TIMING...SURF HEIGHTS WILL LIKELY EXCEED 10 FEET BY
  LATE FRIDAY EVENING. THE PEAK OF THE EVENT WILL LIKELY OCCUR ON
  SATURDAY WHEN 15 TO 20 FOOT BREAKERS...WITH LOCALLY HIGHER SETS
  WILL BE LIKELY FOR EXPOSED NORTHWEST FACING BEACHES. SURF SHOULD
  GRADUALLY SUBSIDE THROUGH SUNDAY...BUT MAY REMAIN ABOVE 10 FEET
  THROUGH LATE SUNDAY EVENING. 

* COASTAL FLOODING...THERE BE THE POTENTIAL FOR MINOR COASTAL
  FLOODING THIS WEEKEND...ESPECIALLY A FEW HOURS EITHER SIDE OF
  HIGH TIDE. A HIGH TIDE OF 6.2 FEET WILL OCCUR AT PORT SAN LUIS
  AT 752 AM ON SATURDAY...THEN 6.4 FEET AT 831 AM ON SUNDAY.

* IMPACTS...THERE IS THE POTENTIAL FOR SIGNIFICANT BEACH
  EROSION... DAMAGE TO STRUCTURES SUCH AS PIERS...MINOR COASTAL
  FLOODING...DANGEROUS RIP CURRENTS...AND SNEAKER WAVES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

REMEMBER...IF CAUGHT IN A RIP CURRENT...SWIM PARALLEL TO SHORE
UNTIL YOU ARE FREE OF THE POWERFUL CURRENT. ALWAYS SWIM NEAR A
LIFEGUARD.

A COASTAL FLOOD ADVISORY INDICATES THAT THE VERY LARGE SURF AND
HIGH TIDES WILL COMBINE TO GENERATE FLOODING OF LOW LYING AREAS
ALONG THE SHORE.

&&

$$


GOMBERG/HALL

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
955 PM PST WED DEC 17 2014

...UPDATED AVIATION SECTION...

.SYNOPSIS...

A WEAK STORM SYSTEM WILL BRING ANOTHER CHANCE OF RAIN TO AREAS
MAINLY NORTH OF POINT CONCEPTION THROUGH THURSDAY MORNING.
ANOTHER WEAK SYSTEM WILL BRUSH THE NORTHERN PORTION OF THE AREA ON
FRIDAY. STARTING OVER THE WEEKEND...HIGH PRESSURE WILL
BUILD...BRINGING A WARMING TREND THROUGH THE MIDDLE OF NEXT WEEK.

&&

.UPDATE...

A BROAD TROUGH OF LOW PRESSURE REMAINS OVER THE REGION THIS
EVENING. SOME SHOWERS CONTINUE TO STREAM OVER THE AREA IN LOW-
LEVEL NORTHWEST FLOW. THE BROAD TROUGH AXIS WILL GET SOME
REENFORCEMENT AS A SHORTWAVE TROUGH OVER THE SACRAMENTO VALLEY
DIVES SOUTH LATE TONIGHT AND INTO EARLY THURSDAY MORNING. THE BULK
OF THE INSTABILITY WITH THE SHORTWAVE TROUGH WILL ARRIVE LATER
TONIGHT AND INTO EARLY WEDNESDAY MORNING. THE BEST CHANCE FOR ANY
PRECIPITATION WILL BE FOR LOCATIONS NORTH OF POINT CONCEPTION.
HOWEVER...SHOWERS CANNOT BE RULED OUT FOR LOCATION SOUTH OF POINT
CONCEPTION.

WEAK RIDGING WILL BUILD IN BEHIND THE TROUGH OF LOW PRESSURE FROM
THE WEST ON THURSDAY AFTERNOON AND EVENING AS IT EXITS THE AREA.
A GENERAL CLEARING SKY TREND SHOULD BE EXPECTED THROUGHOUT
THURSDAY AS THE RIDGE BUILD IN AND SHOWERS TAPER OFF. NO UPDATES
ARE PLANNED AT THIS TIME.

&&

.PREV DISCUSSION...

SHORT TERM...A WEAK HIGH PRESSURE RIDGE TRIES TO BUILD INTO
SOUTHWEST CALIFORNIA ON THURSDAY AFTERNOON...HOWEVER YET ANOTHER
WEAK STORM SYSTEM SQUASHES THE RIDGE ON FRIDAY. WILL CONTINUE THE
IDEA OF A SLIGHT CHANCE OF RAIN FOR NORTH OF PT CONCEPTION ON
FRIDAY LINGERING INTO SATURDAY MORNING. FOR THE REST OF THE AREA
WILL EXPECT PLENTY OF MID AND HIGH LEVEL CLOUDS ON FRIDAY AND
SATURDAY. TEMPERATURES ARE NOT GOING TO MOVE MUCH FOR THE NEXT FEW
DAYS AND WILL BE A LITTLE TRICKY AT NIGHT AS SOME AREAS WILL CLEAR
OUT LONG ENOUGH TO MAXIMIZE RADIATIONAL COOLING.

LONG TERM...THE GOOD NEWS IS THE LONGER TERM LOOKS VERY
CONSISTENT WITH HIGH PRESSURE BUILDING ACROSS THE ENTIRE EASTERN
PACIFIC OCEAN. THIS WILL BE A NICE BREAK FROM THE RAINY WEATHER
GOING INTO THE HOLIDAYS BUT JUST HOPE THE WATER TAP HAS NOT
COMPLETELY SHUT OFF FOR THE YEAR. WE WILL DEFINITELY SEE A WARMING
TREND STARTING SUNDAY AND CONTINUING THROUGH WEDNESDAY. ABOVE
NORMAL TEMPERATURES ARE LIKELY NEXT WEEK WITH A PEAK NEAR 80
DEGREES ON TUESDAY THEN POSSIBLY A COUPLE OF DEGREES COOLER ON
WEDNESDAY. REALLY DO NOT SEE ANY PRECIPITATION THROUGH THE
DURATION OF THE GFS MODEL RUN EXTENDING THROUGH THE END OF NEXT
WEEK.

&&

.AVIATION...18/0600Z.

THERE IS NO INVERSION NEAR KLAX AT 06Z.

MODERATE CONFIDENCE IN THE 06Z TAF PACKAGE. A WEAK FRONT AND
ASSOCIATED LIGHT SHOWERS ARE MOVING THROUGH SLO AND SBA COUNTIES AT
THIS HOUR. SHOWERS WILL REACH LA COUNTY BY EARLY THURSDAY
MORNING...BUT WILL CONTINUE TO WEAKEN AS THEY MOVE SOUTHEAST. KEPT
ALL SITES IN IFR...BUT THERE IS A 20-40 PERCENT CHANCE OF MVFR CIGS
OR VISBY PRETTY MUCH ANYWHERE. COASTAL SITES HAVE THE BEST CHANCE OF
MVFR CONDITIONS TONIGHT THROUGH 18Z THURSDAY.

KLAX AND KBUR...MODERATE CONFIDENCE THAT IFR CONDITIONS WILL PERSIST
THROUGH MOST OF THE PERIOD. 30 PERCENT CHANCE OF MVFR CIGS/VISBY
12-18Z WITH THE PASSAGE OF A WEAK FRONT THAT MOST LIKELY WILL NOT
RESULT IN ANY RAIN.

&&

.MARINE...17/800 PM.

LARGE SWELL CONTINUES THIS EVENING ACROSS MUCH OF THE COASTAL
WATERS BUT WILL GRADUALLY SUBSIDE ON THURSDAY. ALL SMALL CRAFT
ADVISORIES FOR WINDS HAVE BEEN ALLOWED TO EXPIRE...BUT WILL
CONTINUE SMALL CRAFTS TONIGHT FOR HAZARDOUS SEAS. ANOTHER LARGE
WNW SWELL WILL IMPACT THE CENTRAL COAST BY LATE SATURDAY
AFTERNOON...WITH SOME OF THIS ENERGY IMPACTING THE INNER WATERS
LATE SATURDAY NIGHT.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
SMALL CRAFT ADVISORY (SEE LAXMWWLOX).
HIGH SURF ADVISORY (SEE LAXCFWLOX).
HIGH RIP CURRENT RISK (SEE LAXSRFLOX).

&&

PUBLIC...HALL/BOLDT
AVIATION...SUKUP
MARINE...GOMBERG
SYNOPSIS...B/HALL

WWW.WEATHER.GOV/LOSANGELES

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
600 AM PST WED DEC 17 2014

CAZ034>041-044>046-051>054-059-087-088-547-548-181400-
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY-
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS-
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
SAN LUIS OBISPO COUNTY MOUNTAINS-
SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
ANTELOPE VALLEY-CATALINA ISLAND-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN FERNANDO VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
600 AM PST WED DEC 17 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY AND TONIGHT

SCATTERED SHOWERS WILL CONTINUE ACROSS THE AREA THROUGH TONIGHT IN
THE WAKE OF A COLD FRONTAL PASSAGE. WITH SNOW LEVELS AROUND 5000 TO
5500 FEET...SOME ACCUMULATION SNOWFALL IS LIKELY AT HIGHER
ELEVATIONS (GENERALLY ABOVE 6000 FEET).

A LARGE...LONG-PERIOD...WEST TO NORTHWEST SWELL WILL CONTINUE TO
GENERATE HIGH SURF AND DANGEROUS RIP CURRENTS ALONG LOCAL BEACHES
THROUGH THIS EVENING.

* WINTER WEATHER ADVISORY....SEE WWUS46 KLOX - WSWLOX FOR DETAILS *

* HIGH SURF ADVISORY.........SEE WHUS46 KLOX - CFWLOX FOR DETAILS *

* HIGH RIP CURRENT RISK......SEE FZUS56 KLOX - SRFLOX FOR DETAILS *

* MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

THOMPSON