Alert archive / California / Beach Hazards Statements in 2021

Beach Hazards Statement 4, NWS Los Angeles, CA

April 22, 2021Los Angeles County, California

NWS Los Angeles, CA issued this beach hazards statement at Apr 22, 2021, 12:59 PM PDT for Los Angeles County, California. It took effect at Apr 23, 2021, 2:00 AM PDT. It was in force for 55 hr.

The area

The counties it named.

The facts

Issued
Apr 22, 2021, 12:59 PM PDT (19:59 UTC)
In effect from
Apr 23, 2021, 2:00 AM PDT
Expired
Apr 25, 2021, 9:00 AM PDT
In force
55 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 19:59 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, 8.0 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 2021-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2021-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939587897Sfc1 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
537 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

620 
WHUS46 KLOX 221959
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
1259 PM PDT Thu Apr 22 2021

CAZ040-041-087-230400-
/O.NEW.KLOX.BH.S.0004.210423T0900Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
1259 PM PDT Thu Apr 22 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet expected.

* WHERE...Ventura County Coast, Los Angeles County Coast and 
  Catalina and Santa Barbara Islands.

* WHEN...From late tonight through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water due to hazardous swimming conditions, or
stay near occupied lifeguard towers. Rock jetties can be deadly
in such conditions, stay off the rocks.

&&

$$

Sweet
9 follow-up statements
405 
WHUS46 KLOX 222003 CCA
CFWLOX

Coastal Hazard Message...CORRECTED
National Weather Service Los Angeles/Oxnard CA
103 PM PDT Thu Apr 22 2021

CAZ040-041-087-230400-
/O.COR.KLOX.BH.S.0004.210423T0900Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
103 PM PDT Thu Apr 22 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet expected. Local max sets to 7 feet are
  possible Friday night.

* WHERE...Ventura County Coast, Los Angeles County Coast and 
  Catalina and Santa Barbara Islands.

* WHEN...From late tonight through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water due to hazardous swimming conditions, or
stay near occupied lifeguard towers. Rock jetties can be deadly
in such conditions, stay off the rocks.

&&

$$

Sweet
143 
WHUS46 KLOX 230433
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
933 PM PDT Thu Apr 22 2021

CAZ040-041-087-231300-
/O.CON.KLOX.BH.S.0004.210423T0900Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
933 PM PDT Thu Apr 22 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 AM PDT FRIDAY
THROUGH SUNDAY MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet expected. Local max sets to 7 feet are
  possible Friday afternoon and overnight into early Saturday.
  Highest surf on south facing beaches. 

* WHERE...Ventura County Coast, Los Angeles County Coast and 
  Catalina and Santa Barbara Islands.

* WHEN...From late tonight through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water due to hazardous swimming conditions, or
stay near occupied lifeguard towers. Rock jetties can be deadly
in such conditions, stay off the rocks.

&&

$$
725 
WHUS46 KLOX 230912
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
212 AM PDT Fri Apr 23 2021

CAZ040-041-087-232200-
/O.CON.KLOX.BH.S.0004.000000T0000Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
212 AM PDT Fri Apr 23 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 3 to 6 feet expected. Local max sets to 7 
  feet are possible Friday afternoon and overnight into early 
  Saturday. Highest surf on south facing beaches.

* WHERE...Ventura County Coast, Los Angeles County Coast and 
  Catalina and Santa Barbara Islands.

* WHEN...From late tonight through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip
  currents can pull swimmers and surfers out to sea. Waves can
  wash people off beaches and rocks, and capsize small boats
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water due to hazardous swimming conditions, or
stay near occupied lifeguard towers. Rock jetties can be deadly
in such conditions, stay off the rocks.

&&

$$
117 
WHUS46 KLOX 231643
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
943 AM PDT Fri Apr 23 2021

CAZ040-041-087-240045-
/O.CON.KLOX.BH.S.0004.000000T0000Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
943 AM PDT Fri Apr 23 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet. Local max sets to 7 feet Friday afternoon 
  and overnight into early Saturday. Highest surf on south facing 
  beaches.

* WHERE...Ventura County Coast, Los Angeles County Coast, and 
  Catalina and Santa Barbara Islands.

* WHEN...Through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are hazardous swimming conditions. Swimmers should stay out
of the water or stay near occupied lifeguard towers. People should
stay off rock jetties as they can washed off when waves break over
them.

&&

$$
Kj
006 
WHUS46 KLOX 240107
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
607 PM PDT Fri Apr 23 2021

CAZ040-041-087-240915-
/O.CON.KLOX.BH.S.0004.000000T0000Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
607 PM PDT Fri Apr 23 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet. Local max sets to 7 feet through early
  Saturday Saturday. Highest surf on south facing beaches.

* WHERE...Ventura County Coast, Los Angeles County Coast, and 
  Catalina and Santa Barbara Islands.

* WHEN...Through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are hazardous swimming conditions. Swimmers should stay out
of the water or stay near occupied lifeguard towers. People
should stay off rock jetties as they can washed off when waves
break over the jetties.

&&

$$
Kj
499 
WHUS46 KLOX 240108
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
608 PM PDT Fri Apr 23 2021

CAZ040-041-087-240915-
/O.CON.KLOX.BH.S.0004.000000T0000Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
608 PM PDT Fri Apr 23 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet. Local max sets to 7 feet through early
  Saturday. Highest surf on south facing beaches.

* WHERE...Ventura County Coast, Los Angeles County Coast, and 
  Catalina and Santa Barbara Islands.

* WHEN...Through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are hazardous swimming conditions. Swimmers should stay out
of the water or stay near occupied lifeguard towers. People
should stay off rock jetties as they can washed off when waves
break over the jetties.

&&

$$
Kj
026 
WHUS46 KLOX 240904
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
204 AM PDT Sat Apr 24 2021

CAZ040-041-087-242230-
/O.CON.KLOX.BH.S.0004.000000T0000Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
204 AM PDT Sat Apr 24 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet. Local max sets to 7 feet through today. 
  Highest surf on south facing beaches.

* WHERE...South-facing beaches of the Ventura County and Los
  Angeles County Coast, and Catalina and Santa Barbara Islands.

* WHEN...Through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip
  currents can pull swimmers and surfers out to sea. Waves can
  wash people off beaches and rocks, and capsize small boats
  nearshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are hazardous swimming conditions. Swimmers should stay out
of the water or stay near occupied lifeguard towers. People
should stay off rock jetties as they can washed off when waves
break over the jetties.

&&

$$

Stewart
943 
WHUS46 KLOX 242056
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
156 PM PDT Sat Apr 24 2021

CAZ040-041-087-250500-
/O.CON.KLOX.BH.S.0004.000000T0000Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
156 PM PDT Sat Apr 24 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 3 to 6 feet. Local max sets to 7 feet through 
  today. Highest surf on south facing beaches.

* WHERE...South-facing beaches of the Ventura County and Los 
  Angeles County Coast, and Catalina and Santa Barbara Islands.

* WHEN...Through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are hazardous swimming conditions. Swimmers should stay out
of the water or stay near occupied lifeguard towers. People
should stay off rock jetties as they can washed off when waves
break over the jetties.

&&

$$

Phillips
782 
WHUS46 KLOX 250342
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
842 PM PDT Sat Apr 24 2021

CAZ040-041-087-251600-
/O.CON.KLOX.BH.S.0004.000000T0000Z-210425T1600Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
842 PM PDT Sat Apr 24 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...

* WHAT...Dangerous rip currents and breaking waves due to elevated
  surf of 3 to 6 feet.  

* WHERE...South-facing beaches of the Ventura County and Los
  Angeles County Coast including Catalina and Santa Barbara 
  Islands.

* WHEN...Through Sunday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Waves can 
  wash people off beaches and rocks, and capsize small boats 
  nearshore.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are hazardous swimming conditions. Swimmers should stay out
of the water or stay near occupied lifeguard towers. People
should stay off rock jetties as they can washed off when waves
break over the jetties.

&&

$$

RK

Nearby

Beach Hazards Statements in California, 2021Every beach hazards statement in 2021

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.