Alert archive / California / High Surf Advisories in 2016

High Surf Advisory 21, NWS Los Angeles, CA

April 13, 2016Los Angeles County, California

NWS Los Angeles, CA issued this high surf advisory at Apr 13, 2016, 1:37 PM PDT for Los Angeles County, California. It took effect at Apr 14, 2016, 6:00 AM PDT. It was in force for 51 hr.

The area

The counties it named.

The facts

Issued
Apr 13, 2016, 1:37 PM PDT (20:37 UTC)
In effect from
Apr 14, 2016, 6:00 AM PDT
Expired
Apr 16, 2016, 9:00 AM PDT
In force
51 hr
Issued by
NWS Los Angeles, CA

County Los Angeles County, CA

The radar

The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 20:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

San Diego, CA (KNKX), launched 12:00Z, 8.6 hours before the alert went out and 184 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, San Diego, CA at 12:00Z on 2016-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2016-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

885 
WHUS46 KLOX 132037
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
137 PM PDT WED APR 13 2016

...A HIGH SURF ADVISORY HAS BEEN ISSUED FOR THE WEST AND NORTHWEST
FACING BEACHES OF SAN LUIS OBISPO...SANTA BARBARA...VENTURA AND
LOS ANGELES COUNTIES IN SOUTHWEST CALIFORNIA FROM THURSDAY
MORNING UNTIL SATURDAY MORNING...

.A LARGE NORTHWEST SWELL WILL APPROACH THE COAST OF SOUTHWEST
CALIFORNIA ON THURSDAY AND PRODUCE HIGH SURF ALONG THE WEST AND
NORTHWEST FACING BEACHES. THE HIGH SURF WILL PERSIST UNTIL
SATURDAY MORNING. BREAKERS WILL RANGE FROM 10-15 FEET ON THE
CENTRAL COAST AND FROM 5-8 FEET SOUTH OF POINT CONCEPTION. 

CAZ034-035-140445-
/O.NEW.KLOX.SU.Y.0021.160414T1800Z-160416T1200Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
137 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 5 AM PDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 11 AM THURSDAY TO
5 AM PDT SATURDAY. 

* SURF...10-15 FEET.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ039-140445-
/O.NEW.KLOX.SU.Y.0021.160414T1800Z-160416T1200Z/
SANTA BARBARA COUNTY SOUTH COAST-
137 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 5 AM PDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 11 AM THURSDAY TO
5 AM PDT SATURDAY. 

* SURF...5-7 FEET.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ040-140445-
/O.NEW.KLOX.SU.Y.0021.160414T1800Z-160416T1200Z/
VENTURA COUNTY COAST-
137 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 5 AM PDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 11 AM THURSDAY TO
5 AM PDT SATURDAY. 

* SURF...6-8 FEET.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ041-087-140445-
/O.NEW.KLOX.SU.Y.0021.160414T1800Z-160416T1200Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
CATALINA AND SANTA BARBARA ISLANDS-
137 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 5 AM PDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 11 AM THURSDAY TO
5 AM PDT SATURDAY. 

* SURF...6-8 FEET.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

SWEET
9 follow-up statements
266 
WHUS46 KLOX 140121
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
621 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY IN EFFECT FOR THE WEST AND NORTHWEST FACING
BEACHES OF SAN LUIS OBISPO...SANTA BARBARA...VENTURA AND LOS
ANGELES COUNTIES THURSDAY THROUGH FRIDAY NIGHT...

.A LARGE LONGER PERIOD NORTHWEST SWELL WILL BUILD ALONG THE
CENTRAL COAST ON THURSDAY...BRINGING HIGH SURF CONDITIONS THROUGH
FRIDAY NIGHT. SOME OF THIS LONG PERIOD SWELL ENERGY WILL COMBINE
WITH LARGE WIND-GENERATED CHOPPY SEA CONDITIONS...BRINGING HIGH
CONDITIONS ACROSS WEST FACING BEACHES OF LOS
ANGELES...VENTURA...AND SOUTHERN SANTA BARBARA COUNTIES BY
THURSDAY AFTERNOON...PEAKING ON THURSDAY NIGHT.

CAZ034-035-141100-
/O.EXT.KLOX.SU.Y.0021.160414T1300Z-160416T1200Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
621 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY NOW IN EFFECT FROM 6 AM THURSDAY TO 5 AM
PDT SATURDAY...

* SURF AND TIMING...10-15 FEET...PEAKING THURSDAY NIGHT INTO
  FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ039-141100-
/O.EXT.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
SANTA BARBARA COUNTY SOUTH COAST-
621 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY NOW IN EFFECT FROM 2 PM THURSDAY TO 5 AM
PDT SATURDAY...

* SURF AND TIMING...5-7 FEET...PEAKING LATE THURSDAY AFTERNOON
  INTO THURSDAY NIGHT.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES...ESPECIALLY NEAR RINCON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ040-141100-
/O.EXT.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
VENTURA COUNTY COAST-
621 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY NOW IN EFFECT FROM 2 PM THURSDAY TO 5 AM
PDT SATURDAY...

* SURF AND TIMING...6-8 FEET...PEAKING LATE THURSDAY AFTERNOON
  INTO THURSDAY NIGHT.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ041-087-141100-
/O.EXT.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
CATALINA AND SANTA BARBARA ISLANDS-
621 PM PDT WED APR 13 2016

...HIGH SURF ADVISORY NOW IN EFFECT FROM 2 PM THURSDAY TO 5 AM
PDT SATURDAY...

* SURF...6-8 FEET...PEAKING LATE THURSDAY AFTERNOON INTO THURSDAY
  NIGHT.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

GOMBERG/SWEET
335 
WHUS46 KLOX 141052
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
352 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY IN EFFECT FOR THE WEST AND NORTHWEST FACING
BEACHES OF SAN LUIS OBISPO...SANTA BARBARA...VENTURA AND LOS
ANGELES COUNTIES THROUGH FRIDAY NIGHT...

.LARGE NORTHWEST SWELL BUILDING INTO THE COASTAL WATERS WILL
COMBINED WITH LARGE WIND GENERATED WAVES TO BRING HIGH SURF TO
WEST AND NORTHWEST FACING BEACHES THROUGH FRIDAY NIGHT. THE PEAK
OF THE SURF IS EXPECTED IN MOST AREAS LATE THIS AFTERNOON THROUGH 
EARLY FRIDAY.

CAZ034-035-141900-
/O.CON.KLOX.SU.Y.0021.160414T1300Z-160416T1200Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
352 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF AND TIMING...10-15 FEET...PEAKING LATE THIS AFTERNOON INTO
  EARLY FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ039-141900-
/O.CON.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
SANTA BARBARA COUNTY SOUTH COAST-
352 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 5 AM PDT SATURDAY...

* SURF AND TIMING...5-7 FEET...PEAKING LATE THIS AFTERNOON THROUGH
  EARLY FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES...ESPECIALLY NEAR RINCON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ040-141900-
/O.CON.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
VENTURA COUNTY COAST-
352 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 5 AM PDT SATURDAY...

* SURF AND TIMING...6-8 FEET...PEAKING LATE THIS AFTERNOON THROUGH
  EARLY FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ041-087-141900-
/O.CON.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
CATALINA AND SANTA BARBARA ISLANDS-
352 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 5 AM PDT SATURDAY...

* SURF...6-8 FEET...PEAKING LATE THIS AFTERNOON THROUGH EARLY
  FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$
152 
WHUS46 KLOX 141809
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1109 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY IN EFFECT FOR THE WEST AND NORTHWEST FACING
BEACHES OF SAN LUIS OBISPO...SANTA BARBARA...VENTURA AND LOS
ANGELES COUNTIES THROUGH FRIDAY NIGHT...

.LARGE NORTHWEST SWELL BUILDING INTO THE COASTAL WATERS WILL
COMBINED WITH LARGE WIND GENERATED WAVES TO BRING HIGH SURF TO
WEST AND NORTHWEST FACING BEACHES THROUGH FRIDAY NIGHT. THE PEAK
OF THE SURF IS EXPECTED IN MOST AREAS LATE THIS AFTERNOON THROUGH
EARLY FRIDAY.

CAZ034-035-150215-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1200Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
1109 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF AND TIMING...10-15 FEET...PEAKING LATE THIS AFTERNOON 
  INTO EARLY FRIDAY. 

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ039-150215-
/O.CON.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
SANTA BARBARA COUNTY SOUTH COAST-
1109 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF AND TIMING...5-7 FEET...PEAKING LATE THIS AFTERNOON 
  THROUGH EARLY FRIDAY. 

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES...ESPECIALLY NEAR RINCON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ040-150215-
/O.CON.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
VENTURA COUNTY COAST-
1109 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF AND TIMING...6-8 FEET...PEAKING LATE THIS AFTERNOON 
  THROUGH EARLY FRIDAY. 

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ041-087-150215-
/O.CON.KLOX.SU.Y.0021.160414T2100Z-160416T1200Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
CATALINA AND SANTA BARBARA ISLANDS-
1109 AM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF...6-8 FEET...PEAKING LATE THIS AFTERNOON THROUGH EARLY 
  FRIDAY. 

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

SWEET
575 
WHUS46 KLOX 150248
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
748 PM PDT THU APR 14 2016

...HIGH SURF ADVISORY IN EFFECT FOR THE WEST AND NORTHWEST FACING
BEACHES OF SAN LUIS OBISPO...SANTA BARBARA...VENTURA AND LOS
ANGELES COUNTIES THROUGH FRIDAY NIGHT...

.LARGE NORTHWEST SWELL BUILDING INTO THE COASTAL WATERS WILL
COMBINE WITH LARGE WIND GENERATED WAVES TO BRING HIGH SURF TO
WEST AND NORTHWEST FACING BEACHES THROUGH FRIDAY NIGHT. THE PEAK
OF THE SURF IS EXPECTED TO BE TONIGHT THROUGH EARLY FRIDAY IN
MOST AREAS.

CAZ034-035-151100-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1200Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
748 PM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF AND TIMING...10-15 FEET...PEAKING TONIGHT INTO EARLY
  FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ039-151100-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1200Z/
SANTA BARBARA COUNTY SOUTH COAST-
748 PM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF AND TIMING...5-7 FEET...PEAKING TONIGHT THROUGH EARLY
  FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES...ESPECIALLY NEAR RINCON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ040-151100-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1200Z/
VENTURA COUNTY COAST-
748 PM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF AND TIMING...6-8 FEET...PEAKING TONIGHT THROUGH EARLY
  FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ041-087-151100-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1200Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
CATALINA AND SANTA BARBARA ISLANDS-
748 PM PDT THU APR 14 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* SURF...6-8 FEET...PEAKING TONIGHT THROUGH EARLY FRIDAY.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

GOMBERG/SWEET
082 
WHUS46 KLOX 151040
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
340 AM PDT FRI APR 15 2016

...HIGH SURF ADVISORY IN EFFECT FOR THE WEST AND NORTHWEST FACING
BEACHES OF SAN LUIS OBISPO...SANTA BARBARA...VENTURA AND LOS
ANGELES COUNTIES THROUGH FRIDAY NIGHT...

.LARGE NORTHWEST SWELL WILL CONTINUE TO BUILD INTO THE COASTAL
WATERS AND COMBINE WITH LARGE WIND GENERATED WAVES TO BRING HIGH
SURF TO WEST AND NORTHWEST FACING BEACHES THROUGH TONIGHT. THE
PEAK OF THE SURF IS EXPECTED TO BE THIS MORNING IN MOST AREAS.

CAZ034-035-151845-
/O.EXT.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
340 AM PDT FRI APR 15 2016

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 9 AM PDT SATURDAY...

* SURF AND TIMING...10-15 FEET...PEAKING THIS MORNING.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ039-151845-
/O.EXT.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
SANTA BARBARA COUNTY SOUTH COAST-
340 AM PDT FRI APR 15 2016

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 9 AM PDT SATURDAY...

* SURF AND TIMING...5-7 FEET...PEAKING THIS MORNING. 

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES...ESPECIALLY NEAR RINCON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ040-151845-
/O.EXT.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
VENTURA COUNTY COAST-
340 AM PDT FRI APR 15 2016

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 9 AM PDT SATURDAY...

* SURF AND TIMING...6-8 FEET...PEAKING THIS MORNING.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CAZ041-087-151845-
/O.EXT.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
CATALINA AND SANTA BARBARA ISLANDS-
340 AM PDT FRI APR 15 2016

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 9 AM PDT SATURDAY...

* SURF...6-8 FEET...PEAKING THIS MORNING.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

KAPLAN
307 
WHUS46 KLOX 151750
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1050 AM PDT FRI APR 15 2016


CAZ039>041-087-151900-
/O.CAN.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
CATALINA AND SANTA BARBARA ISLANDS-
1050 AM PDT FRI APR 15 2016

...HIGH SURF ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS CANCELLED
THE HIGH SURF ADVISORY. 

SURF WILL RANGE FROM 4 TO 5 FEET OCCASIONAL 6 FEET ALONG EXPOSED
WEST FACING SHORES IN THE VICINITY OF VENTURA HARBOR AND IN THE
SOUTH SANTA MONICA BAY TODAY. STRONG RIP CURRENTS WILL EXIST IN
THE VICINITY OF THE LARGEST SURF.

$$

CAZ034-035-160200-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
1050 AM PDT FRI APR 15 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY...

* SURF AND TIMING...9-12 FEET...SUBSIDING THIS AFTERNOON.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$
269 
WHUS46 KLOX 160119
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
619 PM PDT FRI APR 15 2016

CAZ034-035-160930-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
619 PM PDT FRI APR 15 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY...

* SURF AND TIMING...SURF 9 TO 12 FEET WILL CONTINUE TO SUBSIDE
  THROUGH SATURDAY MORNING.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

HALL
032 
WHUS46 KLOX 160951
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
251 AM PDT SAT APR 16 2016

CAZ034-035-161600-
/O.CON.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
251 AM PDT SAT APR 16 2016

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

* SURF AND TIMING...SURF 9 TO 12 FEET WILL CONTINUE TO SUBSIDE
  THROUGH THIS MORNING.

* IMPACTS...LARGE WAVES AND STRONG RIP CURRENTS WILL INCREASE 
  THE RISK OF OCEAN DROWNING. SNEAKER WAVES CAN SUDDENLY WASH 
  PEOPLE OFF OF BEACHES AND ROCK JETTIES. 

* LOCATIONS...WEST AND NORTHWEST FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF AND RIP CURRENTS WILL
MAKE SWIMMING AND ROCK JETTIES DANGEROUS.

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

&&

$$

CK
998 
WHUS46 KLOX 161544
CFWLOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
844 AM PDT SAT APR 16 2016

CAZ034-035-161645-
/O.EXP.KLOX.SU.Y.0021.000000T0000Z-160416T1600Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
844 AM PDT SAT APR 16 2016

...HIGH SURF ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...

THE SURF ALONG EXPOSED NORTHWEST SHORES WILL CONTINUE TO SUBSIDE
TODAY. HEIGHTS WILL RANGE FROM 4 TO 7 FEET WITH STRONG RIP
CURRENTS THROUGH THE REMAINDER OF THE MORNING.

$$

What forecasters said that day

The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Los Angeles, CA wrote its last area forecast discussion before this high surf advisory went out at Apr 13, 1:18 PM PDT, 19 minutes earlier.

Area forecast discussion, Apr 13, 1:18 PM PDT, 19 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
118 PM PDT WED APR 13 2016

.SYNOPSIS...
Strong and gusty winds will affect portions of Southern
California Thursday and Friday. Afternoon temperatures will be
near normal through Thursday then will warm to above normal by
this weekend and into next week. There is a slight chance of
showers over the highest mountains Friday morning but otherwise
dry conditions will prevail for the next week.

&&

.SHORT TERM...(TDY-SAT)

The SCREAMING message the next few days is the wind. Most areas
will see at least some duration of gusty winds between this
afternoon and Saturday, but the focus areas will be southern Santa
Barbara County, the interstate 5 corridor, and the Antelope
Valley, late Thursday into Friday morning. A weak and dry front
moving through today will generate some advisory level west to
northwest winds tonight through mid day Thursday.

Then an upper low that is currently about 600 miles west of
Seattle will move inland then drop south as an inside slider
through the Great Basin Thursday night. There will be sufficient
cold air and upper level wind support with this trough to drive
strong northerly winds aloft down to the surface, likely resulting
in warning level gusts up to 80 mph the favored parts of the mtns,
especially the interstate 5 corridor. Warning level winds also
possible down into the Santa Clarita Valley, Santa Monica
Mountains, and coastal areas of southern Santa Barbara County,
though confidence in this latter area not quite as high as with
the other areas. Other valley areas like the San Fernando, San
Gabriel, and Ventura valleys will also see gusty winds, possibly
advisory levels during the peak time period Thursday night.

North winds will shift to northeast Saturday morning, likely
advisory level in the mountains and some of the LA/Ventura
valleys. The offshore flow and a ridge of high pressure building
over the west coast at that time will combine to boost
temperatures several degrees, well into the 80s for the valleys
and lower 80s for parts of the coastal plain away from the
immediate coast.

.LONG TERM...(SUN-WED)

Fairly non-descript weather Sunday through Wednesday. The ridge
will start to break down Monday as the next trough approaches the
Pac NW. This should lead to some cooling for at least for coastal
areas Monday as gradients start trending onshore. Then little
change through Wednesday. May start seeing some marine layer
clouds returning to coastal areas next week, otherwise skies will
remain generally clear with temps 3-6 degrees above seasonal
norms.

&&

.AVIATION...13/1800Z.

AT 1720Z...The marine layer depth at KLAX was around 2100
feet. There was a marine inversion...with the top of the
inversion around 2500 ft and a temperature of 10.6 deg C.

A catalina eddy continues to support low clouds in extreme
southern los angeles county and marine clouds also linger in a
couple of other areas this morning. The latest low level moisture
guidance seems to suggest that moisture may linger in the la
coastal sections through the afternoon either just onshore or just
shy of the coast. Therefore...decided to present a more
pessimistic approach for the klax taf. There may be some brief
sea breeze stratus this afternoon and an earlier return of low
clouds this evening...but confidence is rather low.
Elsewhere...marine cloud coverage is expected to shrink in
coverage today into thursday as a large trough and associated
gusty winds disrupt the marine inversion and marine layer.

KLAX...Low confidence in the 18z taf. There is a 40 percent
chance of the airfield remaining VFR through the night.

KBUR...Good confidence in the 18Z TAF. VFR conditions are
expected through Thursday. There is a 20 percent chance of low
clouds returning tonight.

&&

.MARINE...13/900 AM.

The latest model data is showing considerably strong winds for
late this afternoon into this evening across portions of the
outer coastal waters. As mentioned by the previous shift...it does
appearc that a gale warning will be necessary for late this
afternoon and tonight in zones 673 and 676. Elsewhere...the
current advisories have been kept in place as the coastal waters
transition into a period of very strong northwest flow in
association with the arrival a a large trough by thursday.

Widespread gale force winds are more likely Thu afternoon and
evening across the outer waters...and gales may persist through
Fri evening. Wind gusts to 45 kt are possible during the peak of
the event thu night. Gale watches will likely be upgraded to more
extensive warnings later today.

Good confidence in sca level winds across the nrn inner waters
this afternoon and evening...with somewhat less confidence in sca
level winds across the sba channel. Sca level winds in the sba
channel will likely be confined to the wrn half of the channel.

Have issued gale watches for the inner waters and the Sba channel
for Thu afternoon through late Thu night. There is a fairly good
chance of gale force winds in these areas.

The strong winds will likely large and choppy sea conditions to
the coastal waters Thursday afternoon into Friday night.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory in effect from 11 AM Thursday to 5 AM PDT
      Saturday FOR ZONES 34-35-39>41-87. (SEE LAXCFWLOX).
     Wind Advisory in effect from 5 PM this afternoon to 5 PM PDT
      Thursday FOR ZONES 39-52. (SEE LAXNPWLOX).
     High Wind Watch in effect from Thursday afternoon through
      Friday morning FOR ZONES 39-52>54-59. (SEE LAXNPWLOX).
     High Wind Watch in effect from Thursday evening through
      Friday morning FOR ZONE 46. (SEE LAXNPWLOX).
     Wind Advisory in effect from 8 PM this evening to 3 PM PDT
      Thursday FOR ZONES 53-54-59. (SEE LAXNPWLOX).
PZ...Small Craft Advisory in effect until 3 AM PDT Thursday FOR
      ZONES 645-650. (SEE LAXMWWLOX).
     Gale Watch in effect from Thursday afternoon through late
      Thursday night FOR ZONES 645-650-655. (SEE LAXMWWLOX).
     Small Craft Advisory in effect until noon PDT Thursday FOR
      ZONE 670. (SEE LAXMWWLOX).
     Gale Watch in effect from Thursday afternoon through Friday
      evening FOR ZONE 670. (SEE LAXMWWLOX).
     Small Craft Advisory in effect until 5 PM PDT this afternoon
      FOR ZONES 673-676. (SEE LAXMWWLOX).
     Gale Warning in effect from 5 PM this afternoon to 3 AM PDT
      Friday FOR ZONES 673-676. (SEE LAXMWWLOX).

&&

PUBLIC...MW
AVIATION...Sweet
MARINE...Sweet
SYNOPSIS...KJ

weather.gov/losangeles
Hazardous weather outlook, Apr 13, 10:17 AM PDT, 3 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1017 AM PDT WED APR 13 2016

CAZ034>041-044>046-051>054-059-087-088-547-548-141300-
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-
1017 AM PDT WED APR 13 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY

GUSTY NORTHWEST WINDS ARE EXPECTED ACROSS A PORTION OF THE AREA
TODAY AND TONIGHT.

* WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... THURSDAY THROUGH TUESDAY

STRONG WINDS WILL CREATE HAZARDS ACROSS BOTH THE LAND AND THE
SEAS THURSDAY AND FRIDAY.

* HIGH WIND WATCH............SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* GALE WATCH...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

.SPOTTER INFORMATION STATEMENT...

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

MW

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 13, 3:33 AM PDTGale WatchLOX11 hr
Apr 13, 9:01 AM PDTGale WarningLOX60 hr
Apr 13, 9:53 AM PDTHigh Wind WatchLOXLos Angeles18 hr
Apr 13, 9:53 AM PDTWind AdvisoryLOXLos Angeles3 days

Nearby

High Surf Advisories in California, 2016Every high surf advisory in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.