Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 70, NWS Los Angeles, CA

May 26, 2021

NWS Los Angeles, CA issued this small craft advisory at May 26, 2021, 2:16 AM PDT. It took effect at May 26, 2021, 3:00 AM PDT. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
May 26, 2021, 2:16 AM PDT (09:16 UTC)
In effect from
May 26, 2021, 3:00 AM PDT
Expired
May 27, 2021, 2:00 PM PDT
In force
35 hr
Issued by
NWS Los Angeles, CA

The text

As transmitted.

262 
WHUS76 KLOX 260916
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
216 AM PDT Wed May 26 2021

PZZ670-261730-
/O.CAN.KLOX.GL.W.0028.000000T0000Z-210526T1000Z/
/O.NEW.KLOX.SC.Y.0070.210526T1000Z-210527T1600Z/
/O.NEW.KLOX.GL.A.0024.210527T1600Z-210528T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
216 AM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PDT THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...
...GALE WARNING IS CANCELLED...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 9 feet possible when conditions are worst.

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

* WHEN...For the Small Craft Advisory, until 9 AM PDT Thursday. 
  For the Gale Watch, from Thursday morning through late 
  Thursday night.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$

PZZ650-261730-
/O.CAN.KLOX.SC.Y.0069.000000T0000Z-210526T1000Z/
/O.NEW.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
216 AM PDT Wed May 26 2021

...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and 
  combined seas 3 to 6 feet possible when conditions are worst.

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

* WHEN...From Thursday afternoon through Thursday evening.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$

PZZ673-676-261730-
/O.EXT.KLOX.GL.W.0028.000000T0000Z-210526T1600Z/
/O.NEW.KLOX.GL.A.0024.210527T1900Z-210528T1600Z/
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-
216 AM PDT Wed May 26 2021

...GALE WARNING NOW IN EFFECT UNTIL 9 AM PDT THIS MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY
MORNING...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 30 kt and combined seas 6 to 9 feet when 
  conditions are worst. For the Gale Watch, northwest winds 20 
  to 30 kt with gusts up to 40 kt and combined seas 6 to 9 feet 
  possible 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, until 9 AM PDT this morning. For 
  the Gale Watch, from Thursday afternoon through Friday morning.

* 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.

&&

$$

PZZ645-261730-
/O.NEW.KLOX.SC.Y.0070.210526T2200Z-210527T0400Z/
/O.NEW.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
216 AM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 5 to 8 feet possible when conditions are worst.

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

* WHEN...For the Small Craft Advisory, from 3 PM this afternoon 
  to 9 PM PDT this evening. For the Gale Watch, from Thursday 
  afternoon through Thursday evening.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$

ck
5 follow-up statements
894 
WHUS76 KLOX 261609
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
909 AM PDT Wed May 26 2021

PZZ673-676-270015-
/O.EXP.KLOX.GL.W.0028.000000T0000Z-210526T1600Z/
/O.EXB.KLOX.SC.Y.0070.210526T1609Z-210527T1900Z/
/O.CON.KLOX.GL.A.0024.210527T1900Z-210528T1600Z/
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-
909 AM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON PDT THURSDAY...
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY MORNING...
...GALE WARNING HAS EXPIRED...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 6 to 9 feet possible 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 Small Craft Advisory, until noon PDT Thursday. 
  For the Gale Watch, from Thursday afternoon through Friday 
  morning.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$

PZZ670-270015-
/O.CON.KLOX.SC.Y.0070.000000T0000Z-210527T1600Z/
/O.CON.KLOX.GL.A.0024.210527T1600Z-210528T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
909 AM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT
THURSDAY...
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
LATE THURSDAY NIGHT...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 9 feet possible when conditions are worst.

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

* WHEN...For the Small Craft Advisory, until 9 AM PDT Thursday. 
  For the Gale Watch, from Thursday morning through late 
  Thursday night.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$

PZZ645-270015-
/O.CON.KLOX.SC.Y.0070.210526T2200Z-210527T0400Z/
/O.CON.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
909 AM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 9 PM PDT THIS EVENING...
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 5 to 8 feet possible when conditions are worst.

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

* WHEN...For the Small Craft Advisory, from 3 PM this afternoon 
  to 9 PM PDT this evening. For the Gale Watch, from Thursday 
  afternoon through Thursday evening.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$

PZZ650-270015-
/O.CON.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
909 AM PDT Wed May 26 2021

...GALE WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and 
  combined seas 3 to 6 feet possible when conditions are worst.

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

* WHEN...From Thursday afternoon through Thursday evening.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$
444 
WHUS76 KLOX 262124
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
224 PM PDT Wed May 26 2021

PZZ670-270530-
/O.EXT.KLOX.SC.Y.0070.000000T0000Z-210527T1800Z/
/O.UPG.KLOX.GL.A.0024.210527T1600Z-210528T1000Z/
/O.NEW.KLOX.GL.W.0029.210527T1800Z-210528T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
224 PM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT THURSDAY...
...GALE WARNING IN EFFECT FROM 11 AM THURSDAY TO 3 AM PDT
FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 9 feet expected when conditions are worst.

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

* WHEN...For the Gale Warning, from 11 AM Thursday to 3 AM PDT 
  Friday. For the Small Craft Advisory, until 11 AM PDT Thursday.

* 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.

&&

$$

PZZ673-676-270530-
/O.EXT.KLOX.SC.Y.0070.000000T0000Z-210527T2100Z/
/O.UPG.KLOX.GL.A.0024.210527T1900Z-210528T1600Z/
/O.NEW.KLOX.GL.W.0029.210527T2100Z-210528T1600Z/
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-
224 PM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM PDT THURSDAY...
...GALE WARNING IN EFFECT FROM 2 PM THURSDAY TO 9 AM PDT FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 6 to 9 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 2 PM Thursday to 9 AM PDT 
  Friday. For the Small Craft Advisory, until 2 PM PDT Thursday.

* 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.

&&

$$

PZZ645-270530-
/O.CON.KLOX.SC.Y.0070.210526T2200Z-210527T0400Z/
/O.CON.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
224 PM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WHAT...Northwest winds 20 to 30 kt with possible gusts up to 35
  kt and combined seas 5 to 8 feet possible when conditions are 
  worst.

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

* WHEN...For the Small Craft Advisory, until 9 PM PDT this 
  evening. For the Gale Watch, from Thursday afternoon through 
  Thursday evening.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$

PZZ650-270530-
/O.CON.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
224 PM PDT Wed May 26 2021

...GALE WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

* WHAT...West winds 15 to 25 kt with possible gusts up to 35 kt 
  and combined seas 3 to 6 feet possible when conditions are 
  worst.

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

* WHEN...From Thursday afternoon through Thursday evening.

* IMPACTS...Potentially strong winds may 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 consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and combined
seas.

&&

$$
816 
WHUS76 KLOX 270321
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
821 PM PDT Wed May 26 2021

PZZ645-271130-
/O.CAN.KLOX.SC.Y.0070.000000T0000Z-210527T0400Z/
/O.UPG.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
/O.NEW.KLOX.SC.Y.0071.210527T2200Z-210528T1000Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
821 PM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THURSDAY TO 3 AM PDT
FRIDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 3 PM Thursday to 3 AM PDT Friday.

* 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.

&&

$$

PZZ670-271130-
/O.CON.KLOX.SC.Y.0070.000000T0000Z-210527T1800Z/
/O.CON.KLOX.GL.W.0029.210527T1800Z-210528T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
821 PM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 11 AM THURSDAY TO 3 AM PDT
FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 9 feet expected when conditions are worst.

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

* WHEN...For the Gale Warning, from 11 AM Thursday to 3 AM PDT 
  Friday. For the Small Craft Advisory, until 11 AM PDT Thursday.

* 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.

&&

$$

PZZ673-676-271130-
/O.CON.KLOX.SC.Y.0070.000000T0000Z-210527T2100Z/
/O.CON.KLOX.GL.W.0029.210527T2100Z-210528T1600Z/
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-
821 PM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO 9 AM PDT
FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 6 to 9 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 2 PM Thursday to 9 AM PDT 
  Friday. For the Small Craft Advisory, until 2 PM PDT Thursday.

* 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.

&&

$$

PZZ650-271130-
/O.UPG.KLOX.GL.A.0024.210527T2200Z-210528T0400Z/
/O.NEW.KLOX.SC.Y.0071.210527T2200Z-210528T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
821 PM PDT Wed May 26 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THURSDAY TO 3 AM PDT
FRIDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 3 PM Thursday to 3 AM PDT Friday.

* 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.

&&

$$
245 
WHUS76 KLOX 270954
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
254 AM PDT Thu May 27 2021

PZZ670-271800-
/O.CON.KLOX.SC.Y.0070.000000T0000Z-210527T1800Z/
/O.CON.KLOX.GL.W.0029.210527T1800Z-210528T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
254 AM PDT Thu May 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 3 AM
PDT FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 7 to 8 feet expected when conditions are worst.

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

* WHEN...For the Gale Warning, from 11 AM this morning to 3 AM 
  PDT Friday. For the Small Craft Advisory, until 11 AM PDT this 
  morning.

* 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.

&&

$$

PZZ673-676-271800-
/O.CON.KLOX.SC.Y.0070.000000T0000Z-210527T2100Z/
/O.CON.KLOX.GL.W.0029.210527T2100Z-210528T1600Z/
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-
254 AM PDT Thu May 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 AM PDT FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  combined seas 6 to 8 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 2 PM this afternoon to 9 AM 
  PDT Friday. For the Small Craft Advisory, until 2 PM PDT this 
  afternoon.

* 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.

&&

$$

PZZ645-271800-
/O.CON.KLOX.SC.Y.0071.210527T2200Z-210528T1000Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
254 AM PDT Thu May 27 2021

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

* WHAT...Hazardous sea conditions.

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

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

* 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.

&&

$$

PZZ650-271800-
/O.CON.KLOX.SC.Y.0071.210527T2200Z-210528T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
254 AM PDT Thu May 27 2021

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

* 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 Friday.

* 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.

&&

$$
547 
WHUS76 KLOX 271606
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
906 AM PDT Thu May 27 2021

PZZ670-280015-
/O.CON.KLOX.SC.Y.0070.000000T0000Z-210527T1800Z/
/O.CON.KLOX.GL.W.0029.210527T1800Z-210528T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
906 AM PDT Thu May 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING...
...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and
  combined seas 7 to 8 feet when conditions are worst.

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

* WHEN...For the Gale Warning, until 3 AM PDT Friday. For the 
  Small Craft Advisory, until 11 AM PDT this morning.

* 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.

&&

$$

PZZ673-676-280015-
/O.CON.KLOX.SC.Y.0070.000000T0000Z-210527T2100Z/
/O.CON.KLOX.GL.W.0029.210527T2100Z-210528T1600Z/
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 Thu May 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 AM PDT FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and
  combined seas 6 to 8 feet when conditions are worst.

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

* WHEN...For the Gale Warning, from 2 PM this afternoon to 9 AM 
  PDT Friday. For the Small Craft Advisory, until 2 PM PDT this 
  afternoon.

* 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.

&&

$$

PZZ645-280015-
/O.CON.KLOX.SC.Y.0071.210527T2200Z-210528T1000Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
906 AM PDT Thu May 27 2021

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

* WHAT...Hazardous sea conditions.

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

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

* 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.

&&

$$

PZZ650-280015-
/O.CON.KLOX.SC.Y.0071.210527T2200Z-210528T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
906 AM PDT Thu May 27 2021

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

* 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 Friday.

* 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 small craft 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 small craft advisory went out at May 25, 11:26 PM PDT, 2 hours 50 minutes earlier.

Area forecast discussion, May 25, 11:26 PM PDT, 2 hours 50 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
1126 PM PDT Tue May 25 2021

.SYNOPSIS...25/825 PM.

Afternoon temperatures will gradually cool as overnight and
morning low clouds and fog become more widely spread across the
region through the week. Gusty northwest winds will also continue
with the strongest winds focused over southern Santa Barbara
County.

&&

.SHORT TERM (TUE-FRI)...25/923 PM.

High cloudiness continues to stream over southern California this
evening as a weak upper-level trough of low pressure about 200
miles south-southwest of Point Conception continues to move east.
This trough moving mainly to the south of the area will phase with
an upper-level trough over eastern Oregon and bring a cooling
trend to the area. Onshore flow will continue to increase over
the coming days, likely peaking on Friday. A noticeably absent
stratus deck the last several nights, should take hold of the
cloud pattern late tonight or early Wednesday morning. For folks
hoping to view the lunar eclipse, the best chance of viewing it
will be over the inland areas and away from the coast. For folks
living in the coastal areas, there is a chance people living near
the coast will get to see some of it, or its entirety, depending
upon one location after the high level clouds will thin after
midnight and before the stratus moves in around daybreak. A few
minor tweak were made for the cloud forecast, with the highest
confidence for low clouds and fog for the Central Coast.

A wind advisory remains in effect for southern Santa Barbara
County tonight as gusty Sundowner winds continue. Winds gusts
between 35 and 50 mph have been observed, so far. No changes are
planned for the wind advisory headlines at this time.

***From Previous Discussion***

Overall, 12Z models in good synoptic agreement through the short
term period. At upper levels, weak trough will linger over the
area through the period with minor day-to-day changes in H5
heights. Near the surface, onshore gradients to the east are
forecast to increase through the period with continued northerly
offshore gradients in the evening.

Forecast-wise, the above pattern will lead to relatively typical
late May weather. Main issue will continue to be the winds. Models
indicate some stronger northerly gradients tonight which should
result in one more night of advisory-level Sundowner winds across
southern SBA county. For Wednesday night and Thursday night, the
Sundowner pattern will continue, but speeds should be below
advisory levels as gradients weaken. Also, will need to watch for
some increased northerly winds through the I-5 Corridor on
Thursday night/Friday as LAX-BFL increases and MOS products
indicate stronger winds at Sandberg. Otherwise, the increasing
onshore gradients will generate the typical gusty southwesterly
winds each afternoon/evening across interior sections.

As for clouds, some cirrus clouds drifting overhead will bring
partly cloudy to the area tonight. Additionally, there may be some
stratus/fog across the Central Coast as well as the LAX coastal
plain. Any fog that develops tonight will likely be dense as the
marine inversion will remain quite shallow. For the balance of the
short term period, the inland extent of stratus/fog should
increase each day with the increasing onshore gradients. The
lingering Sundowner winds will likely keep most stratus/fog at bay
for the southern SBA Coast.

As for temperatures, will expect some cooler conditions with
the weak upper trough overhead and increasing onshore flow.
Temperatures will hover around seasonal normals with minor
day-to-day fluctuations, based on the whims of the onshore flow
and marine layer.

.LONG TERM (SAT-TUE)...25/153 PM.

For the extended, models continue to exhibit good synoptic
agreement. At upper levels, trough will deepen over the area on
Saturday then develop a cutoff low near the CA/AZ on Sunday. For
Monday and Tuesday, the low will move east as a rather pronounced
ridge develops along the West Coast. Near the surface, varying
amounts of onshore flow are forecast to continue.

Forecast-wise, Saturday/Sunday look to be the coolest days as
marine layer should be rather deep and H5 heights/thicknesses
decrease. There really is no significant moisture associated with
this upper trough/low, so no appreciable rainfall threat. However
depending on the deepening marine inversion, there could be some
patchy drizzle west of the mountains, especially on Sunday. Gusty
southwesterly winds will continue during the afternoon/evening
hours across interior sections.

For Monday/Tuesday, expect the beginning of a warming trend as the
upper ridge develops off the West Coast. The rising H5 heights
should result in gradually less inland extent of any marine layer
stratus/fog while temperatures climb to above normal levels.

&&

.AVIATION...26/0623Z.

At 05Z at KLAX, the marine layer was 800 feet deep. The top of
the inversion was around 2300 feet with a temperature of 22 C.

Good confidence in inland TAFs. Low confidence in coastal TAFs
where there is a 30 percent chc of no low clouds at sits with low
clouds in the fcst and a 30 percent chc of IFR cigs at sites that
are forecast to remain clear. If cigs do come in - timing could be
off by +/- 2 hours and the VFR transition +/- 1 hour. There is a
30 percent chc that there will be IFR cigs rather than MVFR cigs.
Good confidence that low clouds will arrive fairly early in the
evening tonight but lower confidence in exact time.

KLAX...Low confidence in TAF. There is a 30 percent chc of no low
clouds. Low clouds could arrive as late as 12Z. There is a 30
percent chc that the cigs will be OVC008. Good confidence that low
clouds will arrive earlier this evening but low confidence in
exact timing. Any east wind component will be 6 kt or less.

KBUR...Good confidence in TAF.

&&

.MARINE...25/912 PM.

There will be areas of patchy fog, locally dense with visibility
one nautical mile or less, across the coastal waters during the
overnight and morning hours through the week. The fog is most
likely to develop across the waters off the Central Coast and
west of Los Angeles County tonight and will be more widely spread
as the week progresses.

Across the outer waters... Winds will be at least Small Craft
Advisory (SCA) level across all of the outer waters through
Sunday. Winds will be gale force through tonight and likely on
Friday and and Saturday as well. Seas will be SCA level on
Wednesday.

Across the inner waters north of Point Sal... Winds will be SCA
level primarily during the afternoon and evening hours through
Sunday. Otherwise, conditions will be below SCA level.

For the inner waters south of Point Conception... Winds will be SCA
level through late tonight across western portions of the Santa
Barbara Channel. Winds across all of the inner waters will likely
be SCA level Friday and Saturday primarily during the afternoon
and evening hours. Otherwise, conditions will be below SCA level.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory in effect until 3 AM PDT Wednesday for zones
      39-52. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 3 AM PDT Wednesday for
      zone 650. (See LAXMWWLOX).
     Gale Warning in effect until 3 AM PDT Wednesday for zones
      670-673-676. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 AM Wednesday to 9 AM
      PDT Thursday for zone 670. (See LAXMWWLOX).
     Gale Watch in effect from Thursday morning through late
      Thursday night for zone 670. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 AM Wednesday to noon
      PDT Thursday for zones 673-676. (See LAXMWWLOX).
     Gale Watch in effect from Thursday afternoon through Friday
      morning for zones 673-676. (See LAXMWWLOX).

&&

.HAZARD POTENTIAL OUTLOOK (FRI-TUE).

Gusty northwest to north winds will affect Santa Barbara County
and the Antelope Valley through next weekend, creating driving
hazards and elevated fire weather concerns. Steep seas and near
Gale force winds will create hazardous boating hazards into next
week.

&&

PUBLIC...Hall/Thompson
AVIATION...Rorke
MARINE...Kj
SYNOPSIS.../Kj

weather.gov/losangeles

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 2:16 AM PDTGale WatchLOX18 hr
May 26, 2:24 PM PDTGale WarningLOX36 hr

Nearby

Small Craft Advisories in California, 2021Every small craft advisory 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.