Alert archive / California / Gale Warnings in 2021

Gale Warning 11, NWS Los Angeles, CA

February 27, 2021

NWS Los Angeles, CA issued this gale warning at Feb 27, 2021, 3:32 AM PST. It took effect at Feb 28, 2021, 3:00 AM PST. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 27, 2021, 3:32 AM PST (11:32 UTC)
In effect from
Feb 28, 2021, 3:00 AM PST
Expired
Feb 28, 2021, 12:00 PM PST
In force
9 hr
Issued by
NWS Los Angeles, CA

The text

As transmitted.

898 
WHUS76 KLOX 271132
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
332 AM PST Sat Feb 27 2021

PZZ655-271945-
/O.NEW.KLOX.SC.Y.0021.210228T0100Z-210228T1100Z/
/O.UPG.KLOX.SC.Y.0020.210228T1100Z-210228T2300Z/
/O.NEW.KLOX.GL.W.0011.210228T1100Z-210228T2000Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
332 AM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
3 AM PST SUNDAY...
...GALE WARNING IN EFFECT FROM 3 AM TO NOON PST SUNDAY...

* WHAT...Northeast winds 20 to 30 kt with gusts up to 35 kt and
  steep combined seas of 4 to 6 feet are expected when conditions
  are worst.

* WHERE...Inner waters from Point Mugu to San Mateo Pt. CA 
  including Santa Catalina and Anacapa Islands.

* WHEN...For the Gale Warning, from 3 AM to noon PST Sunday. For 
  the Small Craft Advisory, from 5 PM this afternoon to 3 AM PST 
  Sunday.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ670-673-676-271945-
/O.CON.KLOX.GL.W.0010.000000T0000Z-210228T0500Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
332 AM PST Sat Feb 27 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WHAT...Northwest winds 20 to 30 kt with gusts to 40 kt and
  combined seas of 12 to 16 feet when conditions are worst.

* WHERE...Portions of the coastal waters of southwest 
  California. 

* WHEN...Until 9 PM PST this evening.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ650-271945-
/O.EXT.KLOX.SC.Y.0020.210227T1132Z-210228T2000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
332 AM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON PST SUNDAY...

* WHAT...Hazardous wind and sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island.

* WHEN...Until noon PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ645-271945-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T1100Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
332 AM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

* WHAT...Hazardous wind and sea conditions.

* WHERE...Point Piedras Blancas to Point Sal westward out to 10 
  NM.

* WHEN...Until 3 AM PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
6 follow-up statements
686 
WHUS76 KLOX 271719
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
919 AM PST Sat Feb 27 2021

PZZ655-280130-
/O.CON.KLOX.SC.Y.0021.210228T0100Z-210228T1100Z/
/O.CON.KLOX.GL.W.0011.210228T1100Z-210228T2000Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
919 AM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 3 AM PST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO NOON PST SUNDAY...

* WHAT...Northeast winds 25 to 35 kt and combined seas 4 to 6 
  feet expected when conditions are worst.

* WHERE...Inner waters from Point Mugu to San Mateo Pt. CA 
  including Santa Catalina and Anacapa Islands.

* WHEN...For the Gale Warning, from 3 AM to noon PST Sunday. For 
  the Small Craft Advisory, from 5 PM this afternoon to 3 AM PST 
  Sunday.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ670-673-676-280130-
/O.CON.KLOX.GL.W.0010.000000T0000Z-210228T0500Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
919 AM PST Sat Feb 27 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and 
  combined seas 9 to 13 feet when conditions are worst.

* WHERE...Portions of the coastal waters of southwest 
  California. 

* WHEN...Until 9 PM PST this evening.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ645-280130-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T1100Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
919 AM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...Point Piedras Blancas to Point Sal westward out to 10 
  NM.

* WHEN...Until 3 AM PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ650-280130-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
919 AM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island.

* WHEN...Until noon PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
215 
WHUS76 KLOX 272208
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
208 PM PST Sat Feb 27 2021

PZZ655-280615-
/O.CON.KLOX.SC.Y.0021.210228T0100Z-210228T1100Z/
/O.CON.KLOX.GL.W.0011.210228T1100Z-210228T2000Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
208 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO NOON PST SUNDAY...

* WHAT...Northeast winds 20 to 30 kt with gusts to 35 kt and 
  combined seas 4 to 6 feet expected when conditions are worst.

* WHERE...Inner waters from Point Mugu to San Mateo Pt. CA 
  including Santa Catalina and Anacapa Islands.

* WHEN...For the Gale Warning, from 3 AM to noon PST Sunday. For 
  the Small Craft Advisory, until 3 AM PST Sunday.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ670-673-676-280500-
/O.CON.KLOX.GL.W.0010.000000T0000Z-210228T0500Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
208 PM PST Sat Feb 27 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 9 to 13 feet when conditions are worst.

* WHERE...Portions of the coastal waters of southwest 
  California. 

* WHEN...Until 9 PM PST this evening.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ645-280615-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T1100Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
208 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...Point Piedras Blancas to Point Sal westward out to 10 
  NM.

* WHEN...Until 3 AM PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ650-280615-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
208 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island.

* WHEN...Until noon PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
082 
WHUS76 KLOX 280458
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
858 PM PST Sat Feb 27 2021

PZZ670-673-281100-
/O.CAN.KLOX.GL.W.0010.000000T0000Z-210228T0500Z/
/O.EXA.KLOX.SC.Y.0020.000000T0000Z-210228T1100Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
858 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM 
  and Waters from Pt. Sal to Santa Cruz Island CA and westward 
  60 nm including San Miguel and Santa Rosa Islands.

* WHEN...Until 3 AM PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ676-281300-
/O.CAN.KLOX.GL.W.0010.000000T0000Z-210228T0500Z/
/O.EXB.KLOX.SC.Y.0020.000000T0000Z-210228T2300Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
858 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands.

* WHEN...Until 3 PM PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ655-281300-
/O.CON.KLOX.SC.Y.0021.000000T0000Z-210228T1100Z/
/O.CON.KLOX.GL.W.0011.210228T1100Z-210228T2000Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
858 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO NOON PST SUNDAY...

* WHAT...Northeast winds 20 to 30 kt with gusts to 35 kt and 
  combined seas 4 to 6 feet expected when conditions are worst.

* WHERE...Inner waters from Point Mugu to San Mateo Pt. CA 
  including Santa Catalina and Anacapa Islands.

* WHEN...For the Gale Warning, from 3 AM to noon PST Sunday. For 
  the Small Craft Advisory, until 3 AM PST Sunday.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ645-281100-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T1100Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
858 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...Point Piedras Blancas to Point Sal westward out to 10 
  NM.

* WHEN...Until 3 AM PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ650-281300-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
858 PM PST Sat Feb 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST SUNDAY...

* WHAT...Hazardous sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island.

* WHEN...Until noon PST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
512 
WHUS76 KLOX 281031
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
231 AM PST Sun Feb 28 2021

PZZ655-281845-
/O.EXP.KLOX.SC.Y.0021.000000T0000Z-210228T1100Z/
/O.CON.KLOX.GL.W.0011.210228T1100Z-210228T2000Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
231 AM PST Sun Feb 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 AM PST EARLY THIS
MORNING...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 35 kt and 
  combined seas 4 to 6 feet expected when conditions are worst.

* WHERE...Inner waters from Point Mugu to San Mateo Pt. CA 
  including Santa Catalina and Anacapa Islands.

* WHEN...Until noon PST today.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ645-281700-
/O.EXT.KLOX.SC.Y.0020.000000T0000Z-210228T1700Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
231 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* WHAT...Hazardous sea conditions.

* WHERE...Point Piedras Blancas to Point Sal westward out to 10 
  NM.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ670-673-281700-
/O.EXT.KLOX.SC.Y.0020.000000T0000Z-210228T1700Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
231 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* WHAT...Hazardous sea conditions.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM 
  and Waters from Pt. Sal to Santa Cruz Island CA and westward 
  60 nm including San Miguel and Santa Rosa Islands.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ650-281845-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
231 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Hazardous sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island.

* WHEN...Until noon PST today.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ676-281845-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2300Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
231 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Hazardous sea conditions.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
135 
WHUS76 KLOX 281711
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
911 AM PST Sun Feb 28 2021

PZZ645-670-673-281815-
/O.EXP.KLOX.SC.Y.0020.000000T0000Z-210228T1700Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
Point Piedras Blancas to Point Sal from 10 to 60 NM-
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
911 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

Hazardous conditions have diminished and no longer meet the criteria 
for a Small Craft Advisory. However, the wind and seas will remain 
elevated today and mariners are cautioned to check conditions prior 
to leaving safe harbor.

$$

PZZ655-282000-
/O.CON.KLOX.GL.W.0011.000000T0000Z-210228T2000Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
911 AM PST Sun Feb 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and 
  combined seas 4 to 6 feet when conditions are worst.

* WHERE...Inner waters from Point Mugu to San Mateo Pt. CA 
  including Santa Catalina and Anacapa Islands.

* WHEN...Until noon PST today.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions. Check conditions prior to leaving
safe harbor.

&&

$$

PZZ650-282000-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
911 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Hazardous sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island.

* WHEN...Until noon PST today.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
Check conditions prior to leaving safe harbor.

&&

$$

PZZ676-282300-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2300Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
911 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Hazardous sea conditions.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
Check conditions prior to leaving safe harbor.

&&

$$
Kj
003 
WHUS76 KLOX 281713
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
913 AM PST Sun Feb 28 2021

PZZ655-282000-
/O.CON.KLOX.GL.W.0011.000000T0000Z-210228T2000Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
913 AM PST Sun Feb 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 35 kt and 
  combined seas 4 to 6 feet when conditions are worst.

* WHERE...Inner waters from Point Mugu to San Mateo Pt. CA 
  including Santa Catalina and Anacapa Islands.

* WHEN...Until noon PST today.

* IMPACTS...Strong winds will create dangerous sea conditions 
  which could capsize or damage small and large vessels.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions. Check conditions prior to leaving
safe harbor.

&&

$$

PZZ650-282000-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
913 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Hazardous sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island.

* WHEN...Until noon PST today.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
Check conditions prior to leaving safe harbor.

&&

$$

PZZ676-282300-
/O.CON.KLOX.SC.Y.0020.000000T0000Z-210228T2300Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
913 AM PST Sun Feb 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Hazardous sea conditions.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
Check conditions prior to leaving safe harbor.

&&

$$
Kj

What forecasters said that day

The local office's own words before this gale warning 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 gale warning went out at Feb 27, 3:10 AM PST, 22 minutes earlier.

Area forecast discussion, Feb 27, 3:10 AM PST, 22 minutes before
Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
310 AM PST Sat Feb 27 2021

.SYNOPSIS...27/309 AM.

Northerly winds across the region will be gusty through today,
then shift offshore late this evening and strengthen into a
moderate to strong Santa Ana event through Sunday. There will be
patchy fog off the Los Angeles County coast this morning and a
chance for precipitation by midweek.

&&

.SHORT TERM (TDY-MON)...27/308 AM.

Latest GOES-W Fog Product Imagery was showing low clouds quickly
developing across the souther L.A. Coast and San Gabriel Valley
this morning as well as patchy low clouds across the Santa Barbara
Central Coast and Santa Ynez Valley. Otherwise skies were mostly
clear across the forecast area. Low clouds should scour out by mid
morning.

Synoptically, an upper level trough will continue to dig south across
the Great Basin through this evening, then the base of the trough will
move into Arizona early Sunday morning. A cooler airmass will settle
in behind the trough into Utah/Nevada creating a relatively strong
surface high to develop. This will allow for a strong offshore gradient
to develop late this evening through Sunday morning. Models are in good
agreement with the LAX- DAG surface gradients maxing out around -7.5MB
Sunday morning. The placement of the upper low will allow some decent
upper level support with this upcoming Santa Ana wind event.

So, the main impacts for today through Sunday will be the winds. Initially
there will be plenty of northerly winds across the forecast area. Good
northerly gradients are already in place which has caused gusty north
winds to affect the Santa Barbara South Coast and adjacent Santa Ynez
Foothills, as well as the I-5 Corridor in the LA/Ventura County Mountains,
Santa Clarita and San Fernando Valleys. Strongest gusts for today will
range between 35 and 50 mph. Wind advisories are in place for the areas
mentioned. By this evening, the northerly winds will shift to offshore
when the Santa Ana winds start to kick in. Winds will become more widespread
over the usual wind prone areas of L.A. and Ventura Counties. High Wind
Watches were upgraded to High Wind Warnings for the L.A. and Ventura
County Mountains including the Santa Monica Range along with the
Santa Clarita Valley. Also, a High Wind Watch was issued for the
same time frame for the San Fernando Valley as winds across the
foothills above Porter Ranch, Chatsworth could reach over 60 mph
overnight into Sunday morning. Otherwise, Wind advisories will be
in place for all of Ventura County valleys and coastal areas as
well as the the San Gabriel Valley and L.A. coastal areas between
the Hollywood Hills and Leo Carrillo including Malibu this evening
through Sunday. Winds will start to diminish late Sunday afternoon
and evening through the overnight hours with weak offshore winds
continuing into Monday morning before turning onshore Monday afternoon.

As far as temperatures, High temps will be trending lower today a few
degrees but remaining a few degrees above normal for L.A. and Ventura
Counties, otherwise highs will be around normal for this time of year.
By Sunday, the cooler air mass from the High Desert will filter in
with the Santa Anas and continue the cooling trend for the LA/Ventura
counties, especially inland locations with an additional 5
degrees of cooling. Highs will range to the upper 50s to around 60
for the Antelope Valley to the lower 70s across the wind prone
coastal areas and coastal valleys. Santa Clarita Valley and other
valleys to the north will be in the mid to upper 60s. As the upper
trough pushes to the east, warmer air will moderate into the
region allowing widespread warming 3 to 6 degrees overall. Best
warming across interior areas as the onshore flow kicks in.

.LONG TERM (TUE-FRI)...26/153 PM.

The medium range models remain problematic with the potential mid-
week weather system. The GFS continues to forecast the upper low
over the E Pac by late Mon to move into the srn CA coastal waters
late Tue and Tue night before ejecting eastward on Wed. The GFS
also shows rain associated with with a surface front moving into
portions of the district Tue night and Wed. The latest EC has
trended some toward the GFS solution as it finally has the upper
level low over the E Pac by late Mon but tracks this system S and
well off the srn CA coast thru Tue night before pushing east and
into nrn Baja Wed into Wed evening. The deterministic EC remains
dry over SW CA thru mid-week. The GFS mean ensemble closely
matches the deterministic run, while the EC mean ensembles show a
broad upper trof with scattered light pcpn moving into the area
Tue night and Wed.

Have opted to lean toward the wetter GFS as it has consistently
shown this chance of rain around mid-week over the past several
model runs, and the EC was trending in this direction. Dry weather
is expected on Tue, then a chance to slight chance of rain should
move into the area Tue night and Wed, mainly from srn SBA County
and thru much of VTU/L.A. Counties. At this time due to the
lingering uncertainties, forecast precip amounts are difficult to
predict but should be mostly on the light side and generally less
than 0.20 inch. It should be noted, however, that the deterministic
GFS was forecasting up to 0.60 inch over parts of the coast and
vlys. We will likely fine-tune this pcpn fcst as additional model
runs come in.

Beyond Wed, it looks like some upper level ridging should move
into the area on Thu, followed by an approaching upper level trof
from the E Pac on Fri resulting in a broad SW flow aloft. This
pattern will promote dry conditions over the area for late next
week.

Temperatures should turn a few degrees below normal for many
areas Tue and Wed, then rebound to near normal to slightly above
normal for Thu and Fri.

&&

.AVIATION...27/0058Z.

At 00Z, there was no marine layer at KLAX.

VFR conditions are expected through the period, except for a
slight chance to chance of LIFR conditions at Los Angeles County
coastal terminals between 09Z and 16Z. Periods of moderate to
strong low-level wind shear and turbulence are possible on
Saturday evening.

KLAX...VFR conditions are expected through the period, except for
a 10 percent chance of LIFR conditions between 13Z and 16Z. Any
easterly winds overnight tonight and Saturday morning will be less
than 7 knots. Northerly cross winds with periods of moderate to
wind shear and turbulence are possible on Saturday evening.

KBUR...VFR conditions are expected through the period. Periods of
moderate to wind shear and turbulence are possible on Saturday
evening.

&&

.MARINE...26/820 PM.

Across the outer waters... Winds will increase to Gale force by
late tonight and continue through late Saturday night. They will
diminish to Small Craft Advisory (SCA) level on Sunday and to
below SCA level by late Sunday. Seas will be SCA level through
late Saturday. Conditions will be below SCA level Monday through
Wednesday.

Across the nearshore waters of the Central Coast... Winds and seas
will be SCA level through late Saturday night. Otherwise conditions
will remain below SCA level.

Across the inner waters south of Point Conception... Northwest winds
will be elevated and gusty near Point Conception through Saturday
evening but conditions will remain below SCA level. On Sunday,
northeast winds will reach SCA level from Point Mugu to Santa
Monica and likely out to the Channel Islands including Catalina
Island. Otherwise and elsewhere, conditions will be below SCA
level.

&&

.BEACHES...26/817 PM.

A large northwest swell will peak tonight through Saturday morning,
then subside on Sunday. This will bring high surf conditions to
west to northwest-facing beaches of the Central Coast tonight
through Sunday morning. Large breaking waves of 8 to 12 feet with
local sets to 16 feet are likely. In addition, there will be
dangerous rip currents.

A High Surf Advisory will be in effect until 10am Sunday. Surf on
Ventura County beaches will remain below high surf criteria, but
there will be local sets to 7 feet.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory in effect until 10 AM PST Sunday for zones
      34-35. (See LAXCFWLOX).
     Wind Advisory in effect until 3 AM PST Sunday for zones
      39-52. (See LAXNPWLOX).
     Wind Advisory in effect from 10 PM this evening to 3 PM PST
      Sunday for zone 40. (See LAXNPWLOX).
     Wind Advisory in effect from 4 PM this afternoon to 3 PM PST
      Sunday for zones 41-44-45. (See LAXNPWLOX).
     Wind Advisory in effect from 4 PM this afternoon to 10 PM PST
      this evening for zone 46. (See LAXNPWLOX).
     High Wind Warning in effect from 10 PM this evening to noon
      PST Sunday for zone 46. (See LAXNPWLOX).
     Wind Advisory in effect until 10 PM PST this evening for
      zones 53-54-88-547. (See LAXNPWLOX).
     High Wind Warning in effect from 10 PM this evening to 3 PM
      PST Sunday for zones 53-54-88. (See LAXNPWLOX).
     Wind Advisory in effect from 10 PM this evening to noon PST
      Sunday for zone 87. (See LAXNPWLOX).
     High Wind Watch in effect from this evening through Sunday
      morning for zone 547. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 3 AM PST Sunday for zone
      645. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 PM this afternoon to
      noon PST Sunday for zone 650. (See LAXMWWLOX).
     Small Craft Advisory in effect from 5 PM this afternoon to 3
      AM PST Sunday for zone 655. (See LAXMWWLOX).
     Gale Warning in effect from 3 AM to noon PST Sunday for zone
      655. (See LAXMWWLOX).
     Gale Warning in effect until 9 PM PST this evening for zones
      670-673-676. (See LAXMWWLOX).

&&

.HAZARD POTENTIAL OUTLOOK (MON-FRI).

There is a possibility of widespread rain on Wednesday.

&&

PUBLIC...Kaplan/Sirard
AVIATION...Hall
MARINE...Kj
BEACHES...Kj
SYNOPSIS...Kaplan

weather.gov/losangeles

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 3:30 AM PSTHigh Wind WatchLOX10 hr
Feb 27, 3:30 AM PSTHigh Wind WarningLOXLos Angeles33 hr
Feb 27, 3:32 AM PSTSmall Craft AdvisoryLOX23 hr

Nearby

Gale Warnings in California, 2021Every gale warning 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.