Small Craft Advisory 46, NWS Los Angeles, CA

413 
WHUS76 KLOX 191552
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
852 AM PDT Mon Apr 19 2021

PZZ673-676-200000-
/O.EXT.KLOX.SC.Y.0043.000000T0000Z-210420T0100Z/
/O.UPG.KLOX.GL.A.0016.210420T0400Z-210421T0400Z/
/O.NEW.KLOX.GL.W.0018.210420T0100Z-210421T0400Z/
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-
852 AM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 9 PM PDT
TUESDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Waters from Pt. Sal to Santa Cruz Island CA and 
  westward 60 nm including San Miguel and Santa Rosa Islands and 
  Outer waters from Santa Cruz Island to San Clemente Island to 
  60 NM offshore including San Nicolas and Santa Barbara Islands.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ670-200000-
/O.CON.KLOX.SC.Y.0043.000000T0000Z-210420T0100Z/
/O.UPG.KLOX.GL.A.0016.210420T0100Z-210421T0400Z/
/O.NEW.KLOX.GL.W.0018.210420T0100Z-210421T0400Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
852 AM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 9 PM PDT
TUESDAY...

* WHAT...Northwest winds 25 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ650-200000-
/O.CON.KLOX.SC.Y.0046.210419T2000Z-210420T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
852 AM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 3 AM PDT TUESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 1 PM this afternoon to 3 AM PDT Tuesday.

* 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.

&&

$$

PZZ645-200000-
/O.CON.KLOX.SC.Y.0046.210419T2000Z-210421T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
852 AM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 9 PM PDT TUESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 1 PM this afternoon to 9 PM PDT Tuesday.

* 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.

&&

$$

675 
WHUS76 KLOX 192106
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
206 PM PDT Mon Apr 19 2021

PZZ673-676-200515-
/O.CON.KLOX.SC.Y.0043.000000T0000Z-210420T0100Z/
/O.CON.KLOX.GL.W.0018.210420T0100Z-210421T0400Z/
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-
206 PM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 PM
PDT TUESDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands and Waters from Pt. Sal to Santa Cruz Island 
  CA and westward 60 nm including San Miguel and Santa Rosa 
  Islands.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ670-200515-
/O.CON.KLOX.SC.Y.0043.000000T0000Z-210420T0100Z/
/O.CON.KLOX.GL.W.0018.210420T0100Z-210421T0400Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
206 PM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 PM
PDT TUESDAY...

* WHAT...Northwest winds 25 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ650-200515-
/O.CON.KLOX.SC.Y.0046.000000T0000Z-210420T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
206 PM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
TUESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 3 AM PDT Tuesday.

* 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.

&&

$$

PZZ645-200515-
/O.CON.KLOX.SC.Y.0046.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
206 PM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
TUESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 9 PM PDT Tuesday.

* 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.

&&

$$

832 
WHUS76 KLOX 200313
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
813 PM PDT Mon Apr 19 2021

PZZ673-676-201115-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
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-
813 PM PDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT TUESDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands and Waters from Pt. Sal to Santa Cruz Island 
  CA and westward 60 nm including San Miguel and Santa Rosa 
  Islands.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ670-201115-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
813 PM PDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT TUESDAY...

* WHAT...Northwest winds 25 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ650-201000-
/O.CON.KLOX.SC.Y.0046.000000T0000Z-210420T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
813 PM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
TUESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 3 AM PDT Tuesday.

* 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.

&&

$$

PZZ645-201115-
/O.CON.KLOX.SC.Y.0046.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
813 PM PDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
TUESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 9 PM PDT Tuesday.

* 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.

&&

$$

631 
WHUS76 KLOX 200932
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
232 AM PDT Tue Apr 20 2021

PZZ650-202200-
/O.EXP.KLOX.SC.Y.0046.000000T0000Z-210420T1000Z/
/O.NEW.KLOX.SC.Y.0047.210420T2200Z-210421T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
232 AM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 AM PDT WEDNESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 3 PM this afternoon to 3 AM PDT Wednesday.

* 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.

&&

$$

PZZ673-676-202200-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
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-
232 AM PDT Tue Apr 20 2021

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

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands and Waters from Pt. Sal to Santa Cruz Island 
  CA and westward 60 nm including San Miguel and Santa Rosa 
  Islands.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ670-202200-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
232 AM PDT Tue Apr 20 2021

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

* WHAT...Northwest winds 25 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet expected when conditions are worst.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM.

* WHEN...For the Gale Warning, from 6 PM this evening to 9 PM 
  PDT Tuesday. For the Small Craft Advisory, until 6 PM PDT 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.

&&

$$

PZZ645-202200-
/O.CON.KLOX.SC.Y.0046.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
232 AM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 9 PM PDT Tuesday.

* 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.

&&

$$

089 
WHUS76 KLOX 201606
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
906 AM PDT Tue Apr 20 2021

PZZ673-676-210015-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
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-
906 AM PDT Tue Apr 20 2021

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

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet when conditions are worst.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands and Waters from Pt. Sal to Santa Cruz Island 
  CA and westward 60 nm including San Miguel and Santa Rosa 
  Islands.

* WHEN...Until 9 PM PDT 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.

&&

$$

PZZ670-210015-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
906 AM PDT Tue Apr 20 2021

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

* WHAT...Northwest winds 25 to 30 kt with gusts up to 40 kt and 
  combined seas around 9 feet when conditions are worst.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM.

* WHEN...Until 9 PM PDT 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.

&&

$$

PZZ645-210015-
/O.CON.KLOX.SC.Y.0046.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
906 AM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

* WHAT...Hazardous sea conditions.

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

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

* 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.

&&

$$

PZZ650-210015-
/O.CON.KLOX.SC.Y.0047.210420T2200Z-210421T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
906 AM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 AM PDT WEDNESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 3 PM this afternoon to 3 AM PDT Wednesday.

* 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.

&&

$$

282 
WHUS76 KLOX 202102
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
202 PM PDT Tue Apr 20 2021

PZZ673-676-210400-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
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-
202 PM PDT Tue Apr 20 2021

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

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 10 feet when conditions are worst.

* WHERE...Outer waters from Santa Cruz Island to San Clemente 
  Island to 60 NM offshore including San Nicolas and Santa 
  Barbara Islands and Waters from Pt. Sal to Santa Cruz Island 
  CA and westward 60 nm including San Miguel and Santa Rosa 
  Islands.

* WHEN...Until 9 PM PDT 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.

&&

$$

PZZ670-210400-
/O.CON.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
202 PM PDT Tue Apr 20 2021

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

* WHAT...Northwest winds 25 to 30 kt with gusts up to 35 kt and 
  combined seas around 9 feet when conditions are worst.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM.

* WHEN...Until 9 PM PDT 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.

&&

$$

PZZ645-210400-
/O.CON.KLOX.SC.Y.0046.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
202 PM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

* WHAT...Hazardous sea conditions.

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

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

* 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.

&&

$$

PZZ650-210515-
/O.CON.KLOX.SC.Y.0047.210420T2200Z-210421T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
202 PM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
WEDNESDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 3 AM PDT Wednesday.

* 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.

&&

$$

090 
WHUS76 KLOX 210327
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
827 PM PDT Tue Apr 20 2021

PZZ673-676-211000-
/O.CAN.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
/O.NEW.KLOX.SC.Y.0048.210421T0327Z-210421T1000Z/
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-
827 PM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT WEDNESDAY...
...GALE WARNING IS CANCELLED...

* WHAT...Hazardous sea conditions.

* WHERE...Waters from Pt. Sal to Santa Cruz Island CA and 
  westward 60 nm including San Miguel and Santa Rosa Islands and 
  Outer waters from Santa Cruz Island to San Clemente Island to 
  60 NM offshore including San Nicolas and Santa Barbara Islands.

* WHEN...Until 3 AM PDT Wednesday.

* 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.

&&

$$

PZZ670-211000-
/O.CAN.KLOX.GL.W.0018.000000T0000Z-210421T0400Z/
/O.NEW.KLOX.SC.Y.0048.210421T0327Z-210421T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
827 PM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT WEDNESDAY...
...GALE WARNING IS CANCELLED...

* WHAT...Hazardous sea conditions.

* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM.

* WHEN...Until 3 AM PDT Wednesday.

* 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.

&&

$$

PZZ650-210430-
/O.CAN.KLOX.SC.Y.0047.000000T0000Z-210421T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
827 PM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have diminished below Small Craft Advisory levels, 
resulting in the cancellation of the Small Craft Advisory.

$$

PZZ645-210430-
/O.CAN.KLOX.SC.Y.0046.000000T0000Z-210421T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
827 PM PDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have diminished below Small Craft Advisory levels, 
resulting in the cancellation of the Small Craft Advisory.

$$

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
837 PM PDT Sun Apr 18 2021

.SYNOPSIS...18/837 PM.

Very warm temperatures expected through Monday. A cool down with
a return of night through morning low clouds and fog is expected
starting Monday night and continuing through late in the week.
Drizzle or light rain will be possible Wednesday into Thursday
morning, mainly for parts of Los Angeles County.

&&

.SHORT TERM (SUN-WED)...18/833 PM.

Gusty Santa Ana winds brought very warm temperatures and very low
humidities to LA/Ventura counties today. We broke 3 records today
(Camarillo at 89 degrees, Oxnard NWS station at 86 degrees, and
LAX Aiport at 87 degrees) and also tied at Santa Barbara Airport
at 79 degrees. Meanwhile, onshore west to northwest winds gusting
20 to 30 mph have developed late this afternoon and evening across
portions of the coasts and Ventura county valleys. Current
satellite imagery showing low clouds and fog returning across
portions of the Central Coast this evening, but skies south of
Point Conception will remain mostly clear. With the 00z Vandenberg
sounding showing a low and strong inversion in place this
evening, will likely see some dense fog tonight across the Central
Coast, and a dense fog advisory may be required.

Gusty northwest to north winds will impact portions of southern
Santa Barbara county tonight, as well as the Santa Monica
mountains and adjacent coastal areas from Malibu to Pacific
Palisades. Wind gusts in these areas will generally range between
25 and 35 mph, except local gusts around 40 mph in wind favored
locations such as Gaviota and Montecito Hills.

Weak upper level ridge of high pressure will build over the region
on Monday with rising heights and warming boundary layer
temperatures. Offshore winds will be much weaker on Monday
morning, but there will still be an offshore LAX-Daggett gradient
of -2 to -3 mb that will reinforce the warm/dry air mass. The
onshore winds, however, will return earlier on Monday and become
more widespread, spreading inland into the Antelope Valley by
afternoon and evening. As a result, the warmest and driest
conditions on Monday will be focused across inland areas where
temperatures in the mid 80s to lower 90s will be common. Despite
these very warm temperatures, it will be more difficult to reach
record levels on Monday due to the higher temperatures recorded on
this date in the past. The combination of very warm temperatures,
very low humidities, and afternoon/evening onshore winds gusting
25 to 35 mph will bring elevated fire weather conditions to the
interior on Monday. For more details on fire weather concerns, see
fire section below.

*** From previous discussion ***

Flat upper level ridging with H5 heights around 575-576 dm should
prevail over the fcst area Mon night, then an upper level low will
move into nrn CA on Tue, allowing H5 heights over the forecast area
to lower to around 571-573 dm Tue afternoon. A broad westerly flow
aloft can be expected on Tue.

A decent eddy should develop over the SoCal Bight Mon night, with
low clouds expected along the L.A./VTU County coast, spreading to
the SBA County S coast and some adjacent vlys overnight. There
should also be low clouds along the Central Coast. The low clouds
should linger along the immediate coast thru Tue afternoon,
otherwise mostly clear skies will continue across the region. Temps
on Tue will turn about 7-15 deg cooler for the coast and vlys and a
few degrees cooler for interior areas thanks to increased onshore
flow. However, it should still be several degrees above normal for
the inland vlys, mtns and deserts. The warmest inland coast and vlys
on Tue should top out in the mid 70s to around 80. However, much of
the lower mtns and Antelope Vly should reach the low to mid 80s.

There should be strong onshore pressure gradient trends to the E
and N on Tue. By 00Z Wed the LAX-DAG gradient is fcst by the NAM
to be +8.6 mb, with LAX-BFL at +5.6 mb. These gradients will
result in gusty SW-NW winds across the region Tue afternoon,
strongest along the Central Coast, and in the mtns and deserts.

The upper level low over nrn CA is forecast to move SE as an inside
slider thru far eastern CA Tue night and into NV on Wed, with its
associated upper level trof moving over the forecast area during
the period. The cyclonic flow aloft and developing eddy will help
to expand low clouds quickly inland Tue evening and to the coastal
slopes overnight into Wed morning. Patchy drizzle will also be
possible over VTU/L.A. Counties from the coast to coastal slopes.
There should be some clearing toward the coast by midday Wed, but
lingering clouds will be possible along the coast and into some
vlys. It may wind up being a reverse clearing pattern on Wed with
the coast scattering out and the vlys remaining mostly cloudy.
There will continue to be good onshore flow on Wed, with breezy to
gusty S-W winds for many areas, strongest over the L.A. County
mtns and Antelope vly. Temps will turn 4-8 deg below normal for
many areas on Wed, with highs for the coast and vlys only in the
60s to low 70s.

.LONG TERM (THU-SUN)...18/225 PM.

The deterministic GFS and EC continue to have differences in the
timing and location of upper level trofs and ridges over the
eastern Pac into CA thru the extended period, altho the mean
ensembles are in somewhat better agreement and will focus on this
for the synoptic discussion. Overall, it looks like another upper
level trof, and possibly and upper level low, should strengthen
over nrn and central CA Wed night then move thru srn CA on Thu.
This system will move S and E of the region Thu night, with upper
level ridging building into CA on Fri. By Sat, the upper level
ridge will begin to move E as a large upper level trof moves into
the E Pac. This upper level trof is expected to move closer to the
CA coast by Sun, with the EC mean ensembles a bit stronger and
faster with this system, and even brings in a Pacific front with
rain to the Central Coast by by late Sun.

Good onshore flow and and deep marine layer is expected Wed night
and Thu. Low clouds will again cover much of the area from the
coast to coastal slopes into Thu morning. There should also be
some drizzle and a slight chance (15-20 percent) of some light
rain over the L.A. County coast, vlys and coastal slopes by later
Wed night into Thu morning. The marine layer should become a bit
shallower Thu night into Sat morning with night and morning low
clouds along the coast and some adjacent vlys. Otherwise and
elsewhere, mostly clear skies should prevail thru Sat. Partly to
mostly cloudy skies overall are expected Sat night and Sun, and
will hold off on any POPs for Sun over northern areas pending
additional model runs and any better agreement. Temps are forecast
to be about 5-10 deg below normal for many areas on Thu, then a
gradual warming trend is expected into the weekend, with highs
4-8 deg above normal away from the coastal plain by Sat. It should
then turn slightly cooler across the region for Sun thanks to more
cloudiness and good onshore flow.

&&

.AVIATION...19/0001Z.

At 1715z at KLAX... the inversion was surface-based. The top of
the inversion was around 1900 feet with a temperature of about 22
degrees Celsius.

Overall... Moderate to high confidence in the current TAFs.
At KSBP and KSMX, LIFR/IFR conditions will return after 08z and
become VFR again about 16z. Otherwise and elsewhere, VFR
conditions will prevail. Periods of moderate low-level wind shear
and turbulence is possible through 02z, especially for Los
Angeles County valley terminals.

KLAX... Moderate confidence in the current TAF. VFR conditions
will prevail with periods of moderate low-level wind shear and
turbulence possible through 02z. There is a ten percent chance of
east winds greater than 8 kts during the 13z-18z period.

KBUR... Moderate confidence in the current TAF. VFR conditions
will prevail with periods of moderate low-level wind shear and
turbulence possible through 02z.

&&

.MARINE...18/758 PM.

Patchy dense fog, with visibility under one mile will impact the
outer waters and zone 645 through Monday morning. Fog is then
expected to spread into much of the coastal waters by Monday
night.

Across the outer waters...Winds will continue at Small Craft
Advisory (SCA) level through Wednesday with a forty percent chance
of gales Monday night and Tuesday. The strongest winds will be in
the afternoon and evening hours. Seas will reach SCA level
Tuesday. Conditions will be below SCA level Thursday and Friday.

Across the nearshore waters of the Central Coast... Winds will
increase to SCA level on Tuesday with a forty percent chance that
seas will reach SCA level on Tuesday as well. Otherwise,
conditions will remain below SCA level.

Across the inner waters south of Point Conception...small craft
advisory winds will continue across the western portions of the
Santa Barbara channel tonight, and may reach SCA level by late
Monday afternoon or evening. Also some local north winds gusting
to 25 knots likely tonight in the nearshore waters from Malibu to
Pacific Palisades.

&&

.FIRE WEATHER...18/835 PM.

For tonight, breezy northerly winds (with gusts in the 25 to 40
mph range) will continue to reinforce the dry air, resulting in
some poor humidity recoveries across portions of LA/Ventura
counties, as well as southern Santa Barbara county. The strongest
northerly winds tonight will be around Gaviota, Montecito Hills,
and portions of the Santa Monica mountains and adjacent passes and
canyons from Malibu to Pacific Palisades.

On Monday, the offshore flow will be weaker during the morning,
with an earlier and more widespread onshore wind shift in the
afternoon and evening, extending well inland into the Antelope
Valley. The focus of the elevated fire weather conditions on
Monday will shift to the interior portions of LA/Ventura counties
where onshore wind gusts of 25 to 35 mph in the afternoon hours
will overlap with temperatures of 85 to 93 degrees, and humidities
in the 5 to 15 percent range.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...Small Craft Advisory in effect until 3 AM PDT Monday for zone
      650. (See LAXMWWLOX).
     Small Craft Advisory in effect until 9 PM PDT this evening
      for zone 655. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PDT Tuesday for
      zones 670-673-676. (See LAXMWWLOX).

&&

.HAZARD POTENTIAL OUTLOOK (WED-SUN).

No significant hazards expected.

&&

PUBLIC...Gomberg/Sirard
AVIATION...Kj
MARINE...Gomberg/KJ
FIRE...Gomberg
SYNOPSIS...Gomberg

weather.gov/losangeles