Alert archive / California / Beach Hazards Statements in 2021

Beach Hazards Statement 14, NWS Los Angeles, CA

October 21, 2021Los Angeles County, California

NWS Los Angeles, CA issued this beach hazards statement at Oct 21, 2021, 2:28 PM PDT for Los Angeles County, California. It took effect at Oct 22, 2021, 6:00 PM PDT. It was in force for 28 hr.

The area

The counties it named.

The facts

Issued
Oct 21, 2021, 2:28 PM PDT (21:28 UTC)
In effect from
Oct 22, 2021, 6:00 PM PDT
Expired
Oct 23, 2021, 10:00 PM PDT
In force
28 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 21:26 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, 9.5 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 2021-10-21Temperature 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 2021-10-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 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
1542 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

396 
WHUS46 KLOX 212128
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
228 PM PDT Thu Oct 21 2021

CAZ034-035-221230-
/O.EXP.KLOX.SU.Y.0014.000000T0000Z-211021T2100Z/
/O.NEW.KLOX.SU.Y.0015.211022T1300Z-211024T0500Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
228 PM PDT Thu Oct 21 2021

...HIGH SURF ADVISORY IN EFFECT FROM 6 AM FRIDAY TO 10 PM PDT
SATURDAY...
...HIGH SURF ADVISORY HAS EXPIRED...

* WHAT...Large breaking waves of 10 to 14 feet with dangerous rip
  currents.

* WHERE...San Luis Obispo County Central Coast and Santa Barbara 
  County Central Coast.

* WHEN...From 6 AM Friday to 10 PM PDT Saturday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful northwest swell is expected
  to bring large surf of 15 to 20 feet Monday and Tuesday. In
  addition to dangerous waves and currents. this can result in 
  damage to coastal structures like piers, as well as breaking 
  waves and closures to the Morro Bay Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-221230-
/O.NEW.KLOX.SU.Y.0015.211022T1900Z-211024T0500Z/
Ventura County Coast-
228 PM PDT Thu Oct 21 2021

...HIGH SURF ADVISORY IN EFFECT FROM NOON FRIDAY TO 10 PM PDT
SATURDAY...

* WHAT...Large breaking waves of 6 to 9 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...From noon Friday to 10 PM PDT Saturday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful west swell is expected to
  bring larger surf of 8 to 12 feet Monday and Tuesday. In
  addition to dangerous waves and currents, this can result in
  breaking waves and closures to the Ventura Harbor entrance.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-221230-
/O.NEW.KLOX.BH.S.0014.211023T0100Z-211024T0500Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
228 PM PDT Thu Oct 21 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 4 to 6 feet expected.

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

* WHEN...From Friday evening through Saturday evening.

* 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.

* ADDITIONAL DETAILS...A more powerful west swell is expected to
  bring larger surf of 6 to 10 feet Monday and Tuesday. This will
  result dangerous waves and currents.

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.

&&

$$
7 follow-up statements
684 
WHUS46 KLOX 221446
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
746 AM PDT Fri Oct 22 2021

CAZ034-035-222300-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
746 AM PDT Fri Oct 22 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT
SATURDAY...

* WHAT...Large breaking waves of 10 to 14 feet with dangerous rip
  currents.

* WHERE...San Luis Obispo and Santa Barbara County Central Coast.

* WHEN...Until 10 PM PDT Saturday. Peaking Friday afternoon
  through Saturday morning.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful northwest swell is 
  expected to bring large surf of 15 to 20 feet Monday and 
  Tuesday. In addition to dangerous waves and currents. this can 
  result in damage to coastal structures like piers, as well as 
  breaking waves and closures to the Morro Bay Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-222300-
/O.CON.KLOX.SU.Y.0015.211022T1900Z-211024T0500Z/
Ventura County Coast-
746 AM PDT Fri Oct 22 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 10 PM
PDT SATURDAY...

* WHAT...Large breaking waves of 6 to 9 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...From noon today to 10 PM PDT Saturday. Peaking Saturday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 8 to 12 feet Monday and Tuesday. In 
  addition to dangerous waves and currents, this can result in 
  breaking waves and closures to the Ventura Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-222300-
/O.CON.KLOX.BH.S.0014.211023T0100Z-211024T0500Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
746 AM PDT Fri Oct 22 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 6 PM PDT THIS
EVENING THROUGH SATURDAY EVENING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 4 to 6 feet expected.

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

* WHEN...From 6 PM PDT this evening through Saturday evening.

* 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.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 6 to 10 feet Monday and Tuesday. This 
  will result dangerous waves and currents.

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.

&&

$$
616 
WHUS46 KLOX 222150
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
250 PM PDT Fri Oct 22 2021

CAZ034-035-230600-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
250 PM PDT Fri Oct 22 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT
SATURDAY...

* WHAT...Large breaking waves of 10 to 14 feet with dangerous 
  rip currents.

* WHERE...San Luis Obispo and Santa Barbara County Central Coast.

* WHEN...Until 10 PM PDT Saturday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful northwest swell is 
  expected to bring large surf of 15 to 20 feet Monday and 
  Tuesday. In addition to dangerous waves and currents. this can 
  result in damage to coastal structures like piers, as well as 
  breaking waves and closures to the Morro Bay Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-230600-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
Ventura County Coast-
250 PM PDT Fri Oct 22 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT
SATURDAY...

* WHAT...Large breaking waves of 6 to 9 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...Until 10 PM PDT Saturday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 8 to 12 feet Monday and Tuesday. In 
  addition to dangerous waves and currents, this can result in 
  breaking waves and closures to the Ventura Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-230600-
/O.CON.KLOX.BH.S.0014.211023T0100Z-211024T0500Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
250 PM PDT Fri Oct 22 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 6 PM PDT THIS
EVENING THROUGH SATURDAY EVENING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 4 to 6 feet expected.

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

* WHEN...From 6 PM PDT this evening through Saturday evening.

* 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.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 6 to 10 feet Monday and Tuesday. This 
  will result dangerous waves and currents.

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.

&&

$$

Phillips
920 
WHUS46 KLOX 230547
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
1047 PM PDT Fri Oct 22 2021

CAZ034-035-231400-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
1047 PM PDT Fri Oct 22 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT
SATURDAY...

* WHAT...Large breaking waves of 10 to 14 feet with dangerous 
  rip currents.

* WHERE...San Luis Obispo and Santa Barbara County Central Coast.

* WHEN...Until 10 PM PDT Saturday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful northwest swell is 
  expected to bring large surf of 15 to 20 feet Monday and 
  Tuesday. In addition to dangerous waves and currents. this can 
  result in damage to coastal structures like piers, as well as 
  breaking waves and closures to the Morro Bay Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-231400-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
Ventura County Coast-
1047 PM PDT Fri Oct 22 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT
SATURDAY...

* WHAT...Large breaking waves of 6 to 9 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...Until 10 PM PDT Saturday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 8 to 12 feet Monday and Tuesday. In 
  addition to dangerous waves and currents, this can result in 
  breaking waves and closures to the Ventura Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-231400-
/O.CON.KLOX.BH.S.0014.000000T0000Z-211024T0500Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
1047 PM PDT Fri Oct 22 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
EVENING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 4 to 6 feet expected.

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

* WHEN...Through Saturday evening.

* 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.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 6 to 10 feet Monday and Tuesday. This 
  will result dangerous waves and currents.

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.

&&

$$
008 
WHUS46 KLOX 231026
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
326 AM PDT Sat Oct 23 2021

CAZ034-035-231830-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
326 AM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Large breaking waves of 10 to 14 feet with dangerous 
  rip currents.

* WHERE...San Luis Obispo and Santa Barbara County Central Coast.

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful northwest swell is 
  expected to bring large surf of 15 to 20 feet Monday and 
  Tuesday. In addition to dangerous waves and currents. this can 
  result in damage to coastal structures like piers, as well as 
  breaking waves and closures to the Morro Bay Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-231830-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
Ventura County Coast-
326 AM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Large breaking waves of 6 to 9 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 8 to 12 feet Monday and Tuesday. In 
  addition to dangerous waves and currents, this can result in 
  breaking waves and closures to the Ventura Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-231830-
/O.CON.KLOX.BH.S.0014.000000T0000Z-211024T0500Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
326 AM PDT Sat Oct 23 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
EVENING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 4 to 6 feet expected.

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

* WHEN...Through this evening.

* 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.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 6 to 10 feet Monday and Tuesday. This 
  will result dangerous waves and currents.

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.

&&

$$

Phillips
184 
WHUS46 KLOX 231825
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
1125 AM PDT Sat Oct 23 2021

CAZ034-035-240230-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
1125 AM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Large breaking waves of 10 to 14 feet with dangerous 
  rip currents.

* WHERE...San Luis Obispo and Santa Barbara County Central Coast.

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful northwest swell is 
  expected to bring large surf of 15 to 20 feet Monday and 
  Tuesday. In addition to dangerous waves and currents. this can 
  result in damage to coastal structures like piers, as well as 
  breaking waves and closures to the Morro Bay Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-240230-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
Ventura County Coast-
1125 AM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Large breaking waves of 6 to 9 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 8 to 12 feet Monday and Tuesday. In 
  addition to dangerous waves and currents, this can result in 
  breaking waves and closures to the Ventura Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-240230-
/O.CON.KLOX.BH.S.0014.000000T0000Z-211024T0500Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
1125 AM PDT Sat Oct 23 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 4 to 6 feet expected.

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

* WHEN...Until 10 PM PDT this evening.

* 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.

* ADDITIONAL DETAILS...A more powerful west swell is expected to 
  bring larger surf of 6 to 10 feet Monday and Tuesday. This 
  will result dangerous waves and currents.

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
440 
WHUS46 KLOX 240108
CFWLOX

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

CAZ034-035-240500-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
608 PM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Large breaking waves of 10 to 14 feet with dangerous 
  rip currents.

* WHERE...San Luis Obispo and Santa Barbara County Central Coast.

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful northwest swell is expected
  to bring large surf of 15 to 20 feet Monday and Tuesday In
  addition to dangerous waves and currents, this can result in 
  damage to coastal structures like piers, as well as breaking 
  waves and closures to the Morro Bay Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-240500-
/O.CON.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
Ventura County Coast-
608 PM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Large breaking waves of 6 to 9 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...A more powerful west swell is expected to
  bring larger surf of 8 to 12 feet Monday and Tuesday. In
  addition to dangerous waves and currents, this could result in
  breaking waves and closures to the Ventura Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-240500-
/O.CON.KLOX.BH.S.0014.000000T0000Z-211024T0500Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
608 PM PDT Sat Oct 23 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WHAT...Dangerous rip currents and breaking waves due to 
  elevated surf of 4 to 6 feet expected.

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

* WHEN...Until 10 PM PDT this evening.

* 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.

* ADDITIONAL DETAILS...A more powerful west swell is expected to
  bring larger, Advisory level surf of 6 to 10 feet to the beaches
  on Monday and Tuesday. This will result in dangerous waves and
  currents.

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.

&&

$$
570 
WHUS46 KLOX 240448
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
948 PM PDT Sat Oct 23 2021

CAZ034-035-241600-
/O.EXP.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
/O.NEW.KLOX.SU.Y.0016.211025T1000Z-211027T1000Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
948 PM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY IN EFFECT FROM 3 AM MONDAY TO 3 AM PDT
WEDNESDAY...

* WHAT...Large breaking waves of 15-20 with dangerous rip 
  currents.

* WHERE...San Luis Obispo County Central Coast and Santa Barbara 
  County Central Coast.

* WHEN...From 3 AM Monday to 3 AM PDT Wednesday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...The large, powerful swell could result in
  damage to coastal structures like piers and cause beach erosion
  in many areas. In addition, large breaking waves in the Morro
  Bay Harbor entrance could result in closure of the entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-241600-
/O.EXP.KLOX.SU.Y.0015.000000T0000Z-211024T0500Z/
/O.NEW.KLOX.SU.Y.0016.211025T1400Z-211027T1000Z/
Ventura County Coast-
948 PM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY IN EFFECT FROM 7 AM MONDAY TO 3 AM PDT
WEDNESDAY...
...HIGH SURF ADVISORY WILL EXPIRE AT 10 PM PDT THIS EVENING...

* WHAT...Large breaking waves of 8-12 feet with dangerous rip 
  currents.

* WHERE...Ventura County Coast.

* WHEN...From 7 AM Monday to 3 AM PDT Wednesday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

* ADDITIONAL DETAILS...the large, powerful surf could result in
  closure of the Ventura Harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-087-241600-
/O.EXP.KLOX.BH.S.0014.000000T0000Z-211024T0500Z/
/O.NEW.KLOX.SU.Y.0016.211025T1800Z-211027T1000Z/
Los Angeles County Coast including Downtown Los Angeles-
Catalina and Santa Barbara Islands-
948 PM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY IN EFFECT FROM 11 AM MONDAY TO 3 AM PDT
WEDNESDAY...
...BEACH HAZARDS STATEMENT WILL EXPIRE AT 10 PM PDT THIS
EVENING...

* WHAT....Large breaking waves of 6-10 feet with dangerous rip
  currents.

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

* WHEN...From 11 AM Monday to 3 AM PDT Wednesday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ039-241600-
/O.NEW.KLOX.SU.Y.0016.211025T1400Z-211027T1000Z/
Santa Barbara County South Coast-
948 PM PDT Sat Oct 23 2021

...HIGH SURF ADVISORY IN EFFECT FROM 7 AM MONDAY TO 3 AM PDT
WEDNESDAY...

* WHAT...Breaking waves of 4 to 7 with dangerous rip currents.

* WHERE...Santa Barbara County South Coast.

* WHEN...From 7 AM Monday to 3 AM PDT Wednesday.

* IMPACTS...There is an increased risk for ocean drowning. Rip 
  currents can pull swimmers and surfers out to sea. Large 
  breaking waves can cause injury, wash people off beaches and 
  rocks, and capsize small boats near shore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Smith

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 21, 2:48 AM PDTSmall Craft AdvisoryLOX24 hr
Oct 21, 2:48 AM PDTSmall Craft AdvisoryLOX24 hr
Oct 21, 7:49 AM PDTHigh Surf AdvisoryLOX6 hr
Oct 21, 2:28 PM PDTHigh Surf AdvisoryLOX56 hr

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.