Alert archive / California / High Surf Advisories in 2021

High Surf Advisory 11, NWS Los Angeles, CA

March 15, 2021

NWS Los Angeles, CA issued this high surf advisory at Mar 15, 2021, 2:14 AM PDT. It took effect at Mar 15, 2021, 2:00 PM PDT. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Mar 15, 2021, 2:14 AM PDT (09:14 UTC)
In effect from
Mar 15, 2021, 2:00 PM PDT
Expired
Mar 16, 2021, 9:00 AM PDT
In force
19 hr
Issued by
NWS Los Angeles, CA

The text

As transmitted.

253 
WHUS46 KLOX 150914
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
214 AM PDT Mon Mar 15 2021

CAZ034-035-151715-
/O.NEW.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
214 AM PDT Mon Mar 15 2021

...HIGH SURF ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 AM
PDT TUESDAY...

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

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

* WHEN...From 2 PM this afternoon to 9 AM PDT Tuesday.

* 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 combination of strong Gale force winds
  and relatively large swell with a wind driven short period will
  pile surf along west to northwest facing beaches. 

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.

&&

$$

CAZ039-040-151715-
/O.NEW.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
Santa Barbara County South Coast-Ventura County Coast-
214 AM PDT Mon Mar 15 2021

...HIGH SURF ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 AM
PDT TUESDAY...

* WHAT...Large breaking waves of 5 to 8 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Santa Barbara County South Coast and Ventura County 
  Coast.

* WHEN...From 2 PM this afternoon to 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will
  create very steep short period swells translating to high surf
  piling up across west facing beaches. 

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.

&&

$$

CAZ041-151715-
/O.NEW.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
Los Angeles County Coast including Downtown Los Angeles-
214 AM PDT Mon Mar 15 2021

...HIGH SURF ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 AM
PDT TUESDAY...

* WHAT....Large breaking waves of 6 to 10 feet across west facing
  beaches with dangerous rip currents.

* WHERE...Los Angeles County Coast.

* WHEN...From 2 PM this afternoon to 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will
  create very steep short period swells translating to high surf
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

Kaplan/Stewart
5 follow-up statements
812 
WHUS46 KLOX 151527
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
827 AM PDT Mon Mar 15 2021

CAZ034-035-152330-
/O.CON.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
827 AM PDT Mon Mar 15 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 9 AM PDT TUESDAY...

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

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

* WHEN...From 2 PM this afternoon to 9 AM PDT Tuesday.

* 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 combination of strong Gale force 
  winds and relatively large swell with a wind driven short 
  period will pile surf along west to northwest facing beaches.

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.

&&

$$

CAZ039-040-152330-
/O.CON.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
Santa Barbara County South Coast-Ventura County Coast-
827 AM PDT Mon Mar 15 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 9 AM PDT TUESDAY...

* WHAT...Large breaking waves of 5 to 8 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Santa Barbara County South Coast and Ventura County 
  Coast.

* WHEN...From 2 PM this afternoon to 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

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.

&&

$$

CAZ041-152330-
/O.CON.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
Los Angeles County Coast including Downtown Los Angeles-
827 AM PDT Mon Mar 15 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON
TO 9 AM PDT TUESDAY...

* WHAT...Large breaking waves of 6 to 10 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Los Angeles County Coast.

* WHEN...From 2 PM this afternoon to 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$
701 
WHUS46 KLOX 152015
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
115 PM PDT Mon Mar 15 2021

CAZ034-035-160500-
/O.CON.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
115 PM PDT Mon Mar 15 2021

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

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

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

* WHEN...Until 9 AM PDT Tuesday.

* 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 combination of strong Gale force 
  winds and relatively large swell with a wind driven short 
  period will pile surf along west to northwest facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught in
a rip current, relax and float. Don't swim against the current. If
able, swim in a direction following the shoreline. If unable to
escape, face the shore and call or wave for help.

&&

$$

CAZ039-040-160500-
/O.CON.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
Santa Barbara County South Coast-Ventura County Coast-
115 PM PDT Mon Mar 15 2021

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

* WHAT...Large breaking waves of 5 to 8 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Santa Barbara County South Coast and Ventura County 
  Coast.

* WHEN...Until 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught in
a rip current, relax and float. Don't swim against the current. If
able, swim in a direction following the shoreline. If unable to
escape, face the shore and call or wave for help.

&&

$$

CAZ041-160500-
/O.CON.KLOX.SU.Y.0011.210315T2100Z-210316T1600Z/
Los Angeles County Coast including Downtown Los Angeles-
115 PM PDT Mon Mar 15 2021

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

* WHAT...Large breaking waves of 6 to 10 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Los Angeles County Coast.

* WHEN...Until 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

Kaplan/Stewart/Sirard
588 
WHUS46 KLOX 160407
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
907 PM PDT Mon Mar 15 2021

CAZ034-035-161215-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
907 PM PDT Mon Mar 15 2021

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

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

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

* WHEN...Until 9 AM PDT Tuesday.

* 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 combination of strong Gale force 
  winds and relatively large swell with a wind driven short 
  period will pile surf along west to northwest facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

CAZ040-161215-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Ventura County Coast-
907 PM PDT Mon Mar 15 2021

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

* WHAT...Large breaking waves of 5 to 9 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Santa Barbara County South Coast and Ventura County 
  Coast.

* WHEN...Until 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

CAZ041-161215-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Los Angeles County Coast including Downtown Los Angeles-
907 PM PDT Mon Mar 15 2021

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

* WHAT...Large breaking waves of 6 to 10 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Los Angeles County Coast.

* WHEN...Until 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

CAZ039-161215-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Santa Barbara County South Coast-
907 PM PDT Mon Mar 15 2021

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

* WHAT...Large breaking waves of 5 to 8 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Santa Barbara County South Coast.

* WHEN...Until 9 AM PDT Tuesday.

* 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

Phillips
706 
WHUS46 KLOX 161146
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
446 AM PDT Tue Mar 16 2021

CAZ034-035-161600-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
446 AM PDT Tue Mar 16 2021

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

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

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

* WHEN...Until 9 AM PDT this 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...The combination of strong Gale force 
  winds and relatively large swell with a wind driven short 
  period will pile surf along west to northwest facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

CAZ040-161600-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Ventura County Coast-
446 AM PDT Tue Mar 16 2021

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

* WHAT...Large breaking waves of 5 to 9 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Santa Barbara County South Coast and Ventura County 
  Coast.

* WHEN...Until 9 AM PDT this 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

CAZ041-161600-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Los Angeles County Coast including Downtown Los Angeles-
446 AM PDT Tue Mar 16 2021

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

* WHAT...Large breaking waves of 6 to 10 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Los Angeles County Coast.

* WHEN...Until 9 AM PDT this 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

CAZ039-161600-
/O.CON.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Santa Barbara County South Coast-
446 AM PDT Tue Mar 16 2021

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

* WHAT...Large breaking waves of 5 to 8 feet across west facing 
  beaches with dangerous rip currents.

* WHERE...Santa Barbara County South Coast.

* WHEN...Until 9 AM PDT this 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...Strong westerly Gale force winds will 
  create very steep short period swells translating to high surf 
  piling up across west facing beaches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

&&

$$

ASR
157 
WHUS46 KLOX 161544
CFWLOX

Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
844 AM PDT Tue Mar 16 2021

CAZ034-035-161645-
/O.EXP.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
844 AM PDT Tue Mar 16 2021

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

Surf has subsided to below Advisory levels and the High Surf
Advisory will be allowed to expire at 9 AM PDT. There will
continue to be above normal surf into this afternoon and beach- 
goers should remain aware of strong rip currents and sneaker 
waves.

$$

CAZ040-161645-
/O.EXP.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Ventura County Coast-
844 AM PDT Tue Mar 16 2021

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

Surf has subsided to below Advisory levels and the High Surf
Advisory will be allowed to expire at 9 AM PDT. There will
continue to be above normal surf into this afternoon and beach- 
goers should remain aware of strong rip currents and sneaker 
waves.

$$

CAZ041-161645-
/O.EXP.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Los Angeles County Coast including Downtown Los Angeles-
844 AM PDT Tue Mar 16 2021

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

Surf has subsided to below Advisory levels and the High Surf
Advisory will be allowed to expire at 9 AM PDT. There will
continue to be above normal surf into this afternoon and beach- 
goers should remain aware of strong rip currents and sneaker 
waves.

$$

CAZ039-161645-
/O.EXP.KLOX.SU.Y.0011.000000T0000Z-210316T1600Z/
Santa Barbara County South Coast-
844 AM PDT Tue Mar 16 2021

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

Surf has subsided to below Advisory levels and the High Surf
Advisory will be allowed to expire at 9 AM PDT. There will
continue to be above normal surf into this afternoon and beach- 
goers should remain aware of strong rip currents and sneaker 
waves.

$$

Sirard

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 Mar 14, 11:58 PM PDT, 2 hours 16 minutes earlier.

Area forecast discussion, Mar 14, 11:58 PM PDT, 2 hours 16 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
1158 PM PDT Sun Mar 14 2021

.SYNOPSIS...14/916 PM.

A cold storm system will bring light rain, low elevation snow,
and gusty winds to the area late tonight and Monday and very gusty
winds Monday afternoon and evening. It will be dry with a warming
trend Tuesday through Wednesday. Light rain chances return later
in the week, mainly for San Luis Obispo and Santa Barbara Counties.

&&

.SHORT TERM (SUN-WED)...14/912 PM.

***UPDATE***

Light rain has begun to work its way down the coast and as of 8 pm has
dropped a few hundredths along the north coast of Monterey County.
The timing and precip rates match well with the current forecast
package and no notable changes were made in the evening update.

The primary impacts from this system will be from the wind and the
low elevation snow. Though this is a relatively weak system, the
projections indicate wind gusts of 40 to 50 mph across a wide
swath of the coastal areas as well as in the mountains and could
peak at morning commute. Low elevation snowfall totals will not
be particularly heavy but the roads are cold and that will help
the snow stick a bit easier.

***From Previous Discussion***

Lots of stratocumulus today across the coast and valleys associated
with a deepening marine layer ahead of our next weather system.
Best chances to see good sunshine today was to get on a boat and
spend time on the ocean. Or across the far interior sections.

Light rain expected to arrive later this evening in northern SLO
County and by around sunrise in LA County. The front itself will
provide roughly 3 hours of steady light rain followed by a few
hours of scattered showers, meaning most areas except eastern LA
County and the northern mountains will be done with the rain by
noon. Rain amounts expected to mostly be under a quarter inch,
though locally up to around a half inch in the eastern San
Gabriels.

The biggest impacts from this system will be the wind and the
snow. This is another cold system with snow levels expected to
drop to around 2500-3000 feet. A winter weather advisory has been
issued for up to 6 inches of snow at the higher elevations and
1-3" possible over the Grapevine on Interstate 5 beginning after
sunrise Monday morning. Snow will taper off later in the afternoon
and evening in most areas, except strong northwest flow will
continue to create the lifting needed to maintain snow showers
from the I5 corridor west through the northeastern Santa Barbara
Mountains into early Tuesday.

Strong west to northwest flow behind the front will lead to strong
advisory level winds starting late morning and continuing through
the afternoon. Strongest winds will be at or within a few miles of
the beaches and in the western Antelope Valley where gusts to 50
mph are possible. Gusty winds in the mountains as well, especially
the I5 corridor. Mountain winds will continue overnight into early
Tuesday, likely spreading down into some of the valleys and
perhaps even the coastal zones Monday evening into Tuesday morning
and additional advisories may be needed for that.

A warming and drying trend expected Mon-Wed as high pressure
develops over California.

.LONG TERM (THU-SUN)...14/142 PM.

High pressure shifts east Thu/Fri as the next system arrives along
the West Coast. All the energy with this one is well to the north
and the official forecast is still dry, however this might change
in the next couple days as there are quite a few ensemble
solutions from both the ECMWF and GFS that bring light rain at
least through SLO and northern Santa Barbara Counties.

Most model solutions favor a deeper trough next weekend but with
limited moisture. High confidence in a cooler pattern next
weekend but very low confidence on precip chances. Very few of the
ensembles bring any rain farther south than Santa Barbara County
but if the trough ends up as deep as what the deterministic runs
are showing there'd at least be a small chance of precip for
southern areas.

&&

.AVIATION...15/0655Z.

At 0530Z at KLAX...The marine layer was 3300 ft deep. The top of
the inversion was around 5200 feet with a temperature of about 5
degrees Celsius.

Low confidence in TAF through 17Z then moderate confidence. Cigs
will vary frequently through 17Z cigs will mostly be MVFR with
ocnl IFR and low VFR conds as well. Vis will mostly vary during
rain. Good confidence in rain timing through 17Z. There is a 20
percent chc of a shower from 17Z-00Z. Good confidence in much
stronger than normal winds in the afternoon but only moderate
confidence that the speeds within 5kt of fcst.

KLAX...Low confidence in TAF through 17Z then moderate
confidence. Cigs will vary frequently through 17Z cigs will mostly
be MVFR with ocnl IFR and low VFR conds as well. There is a 20
percent chc of a shower from 17Z-00Z. Good confidence in much
stronger than normal winds in the afternoon but only moderate
confidence that the speeds within 5kt of fcst. Good confidence
that there will be no east wind component at all.

KBUR...Low confidence in TAFs through 17Z then moderate
confidence. Cigs will vary frequently through 17Z cigs will mostly
be MVFR with ocnl IFR and low VFR conds as well. There is a 20
percent chc of a shower from 17Z-00Z. Good confidence in much
stronger than normal winds in the afternoon but only moderate
confidence that the speeds within 5kt of fcst.

&&

.MARINE...14/947 PM.

Rain will develop this evening in the northwest portion of the
forecast area and spread across all of the waters by early Monday
morning. The heaviest rain will fall from midnight through mid
morning for areas north of Point Conception and from early
morning through late morning from Point Conception southward. The
rain will be out of the area Monday evening.

For the Outer Waters... Good confidence in current Small Craft
Advisory (SCA) starting late tonight and the GALE WARNING by
Monday afternoon. SCA winds will likely follow the Gale Warning on
Tuesday. Seas will build to SCA level on Monday and continue
through Tuesday evening with the peak of near 16 feet occurring
Monday night. Conditions will be below SCA level Wednesday through
Friday.

For the Inner Waters north of Point Sal... SCA level winds will
develop tonight and continue through late Monday evening. Seas
will build to SCA level on Monday and continue through midday
Tuesday. Conditions will be below SCA level Wednesday through
Friday.

For the Inner Waters south of Point Conception... Gusty SCA level
winds will develop early Monday, especially for the Santa Barbara
Channel and near San Nicolas Island shortly building to GALE FORCE
around noon. Seas will build to SCA level on Monday then diminish
to below SCA level by early Tuesday. Conditions will be below SCA
level Wednesday through Friday.

The combination of scattered showers, widespread gusty winds and
large, choppy seas will be dangerous to boaters, and mariners
should seek safe harbor until conditions improve.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory in effect from 11 AM to 7 PM PDT Monday for
      zones 34>36-40-41. (See LAXNPWLOX).
     Wind Advisory in effect from 11 AM Monday to 9 AM PDT Tuesday
      for zones 39-52. (See LAXNPWLOX).
     Winter Weather Advisory in effect from 3 AM to noon PDT
      Monday for zone 52. (See LAXWSWLOX).
     Winter Weather Advisory in effect from 8 AM Monday to 9 AM
      PDT Tuesday for zones 53-54. (See LAXWSWLOX).
     Wind Advisory in effect from 11 AM to 10 PM PDT Monday for
      zone 59. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect from 3 AM Monday to 3 AM PDT
      Tuesday for zone 645. (See LAXMWWLOX).
     Small Craft Advisory in effect from 5 AM to 11 AM PDT Monday
      for zone 650. (See LAXMWWLOX).
     Gale Warning in effect from 11 AM Monday to 3 AM PDT Tuesday
      for zones 650-655-670-673-676. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 AM to 11 AM PDT Monday
      for zones 670-673-676. (See LAXMWWLOX).

&&

.HAZARD POTENTIAL OUTLOOK (WED-SUN).

No significant hazards expected.

&&

PUBLIC...MW/Kj
AVIATION...Rorke
MARINE...Phillips/Kj
SYNOPSIS...MW

weather.gov/losangeles

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Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.