Small Craft Advisory 174, NWS Los Angeles, CA

829 
WHUS76 KLOX 291117
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
317 AM PST Wed Dec 29 2021

PZZ676-291930-
/O.EXT.KLOX.SC.Y.0174.211229T2000Z-211230T1700Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
317 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM NOON TODAY TO 9 AM PST
THURSDAY...

* WHAT...Hazardous wind and 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...From noon today to 9 AM PST Thursday.

* 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.

&&

$$

PZZ655-291930-
/O.EXT.KLOX.SC.Y.0174.211229T2000Z-211230T1700Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
317 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM NOON TODAY TO 9 AM PST
THURSDAY...

* WHAT...Hazardous wind and sea conditions.

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

* WHEN...From noon today to 9 AM PST Thursday.

* 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.

&&

$$

187 
WHUS76 KLOX 291656
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
856 AM PST Wed Dec 29 2021

PZZ676-300100-
/O.CON.KLOX.SC.Y.0174.211229T2000Z-211230T1700Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
856 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 AM
PST THURSDAY...

* 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...From noon today to 9 AM PST Thursday.

* 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.

&&

$$

PZZ655-300100-
/O.CON.KLOX.SC.Y.0174.211229T2000Z-211230T1700Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
856 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 AM
PST THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From noon today to 9 AM PST Thursday.

* 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.

&&

$$

173 
WHUS76 KLOX 291831
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1031 AM PST Wed Dec 29 2021

PZZ676-291945-
/O.CAN.KLOX.SC.Y.0174.211229T2000Z-211230T1700Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
1031 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

PZZ673-292300-
/O.EXB.KLOX.SC.Y.0174.211229T1831Z-211229T2300Z/
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
1031 AM PST Wed Dec 29 2021

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

* 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.

* 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.

&&

$$

PZZ655-300245-
/O.CON.KLOX.SC.Y.0174.211229T2000Z-211230T1700Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
1031 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST
THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 9 AM PST Thursday.

* 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.

&&

$$

659 
WHUS76 KLOX 292135
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
135 PM PST Wed Dec 29 2021

PZZ673-292300-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211229T2300Z/
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
135 PM PST Wed Dec 29 2021

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

* 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.

* 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.

&&

$$

PZZ655-300545-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211230T1700Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
135 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST
THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 9 AM PST Thursday.

* 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.

&&

$$

366 
WHUS76 KLOX 300010
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
410 PM PST Wed Dec 29 2021

PZZ673-300815-
/O.NEW.KLOX.SC.Y.0175.211230T0010Z-211230T1100Z/
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
410 PM PST Wed Dec 29 2021

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

* 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.

* WHEN...Until 3 AM PST Thursday.

* 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.

&&

$$

PZZ676-300815-
/O.EXB.KLOX.SC.Y.0174.000000T0000Z-211230T1100Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
410 PM PST Wed Dec 29 2021

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

* 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 AM PST Thursday.

* 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.

&&

$$

PZZ650-300815-
/O.EXB.KLOX.SC.Y.0174.000000T0000Z-211230T1800Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
410 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM PST THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 10 AM PST Thursday.

* 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.

&&

$$

PZZ655-300815-
/O.EXT.KLOX.SC.Y.0174.000000T0000Z-211230T1800Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
410 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM PST THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 10 AM PST Thursday.

* 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.

&&

$$

172 
WHUS76 KLOX 300416
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
816 PM PST Wed Dec 29 2021

PZZ676-301100-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211230T1100Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
816 PM PST Wed Dec 29 2021

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

* 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 AM PST Thursday.

* 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.

&&

$$

PZZ673-301100-
/O.CON.KLOX.SC.Y.0175.000000T0000Z-211230T1100Z/
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
816 PM PST Wed Dec 29 2021

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

* 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.

* WHEN...Until 3 AM PST Thursday.

* 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.

&&

$$

PZZ655-301230-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211230T1800Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
816 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 10 AM PST Thursday.

* 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.

&&

$$

PZZ650-301230-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211230T1800Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
816 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 10 AM PST Thursday.

* 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.

&&

$$

379 
WHUS76 KLOX 300737
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1137 PM PST Wed Dec 29 2021

PZZ650-300845-
/O.CAN.KLOX.SC.Y.0174.000000T0000Z-211230T1800Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
1137 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have diminshed below advisory level.

$$

PZZ676-301100-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211230T1100Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
1137 PM PST Wed Dec 29 2021

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

* 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 AM PST Thursday.

* 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.

&&

$$

PZZ673-301100-
/O.CON.KLOX.SC.Y.0175.000000T0000Z-211230T1100Z/
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
1137 PM PST Wed Dec 29 2021

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

* 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.

* WHEN...Until 3 AM PST Thursday.

* 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.

&&

$$

PZZ655-301545-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211230T1800Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
1137 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
THURSDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 10 AM PST Thursday.

* 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.

&&

$$

475 
WHUS76 KLOX 301059
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
259 AM PST Thu Dec 30 2021

PZZ676-301200-
/O.EXP.KLOX.SC.Y.0174.000000T0000Z-211230T1100Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
259 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 AM PST EARLY THIS
MORNING...

Conditions have diminished below advisory levels.

$$

PZZ673-301200-
/O.EXP.KLOX.SC.Y.0175.000000T0000Z-211230T1100Z/
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
259 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 AM PST EARLY THIS
MORNING...

Conditions have diminished below advisory levels.

$$

PZZ655-301800-
/O.CON.KLOX.SC.Y.0174.000000T0000Z-211230T1800Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
259 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 10 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.

&&

$$

530 
WHUS76 KLOX 301611
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
811 AM PST Thu Dec 30 2021

PZZ670-673-310015-
/O.NEW.KLOX.SC.Y.0176.211231T0200Z-211231T1400Z/
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-
811 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
PST FRIDAY...

* 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...From 6 PM this evening to 6 AM PST 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.

&&

$$

PZZ650-302200-
/O.EXB.KLOX.SC.Y.0174.000000T0000Z-211230T2200Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
811 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM PST THIS AFTERNOON...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 2 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.

&&

$$

PZZ655-302200-
/O.EXT.KLOX.SC.Y.0174.000000T0000Z-211230T2200Z/
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
811 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...

* WHAT...Hazardous sea conditions.

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

* WHEN...Until 2 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.

&&

$$

668 
WHUS76 KLOX 302228
MWWLOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
228 PM PST Thu Dec 30 2021

PZZ650-655-310630-
/O.EXP.KLOX.SC.Y.0174.000000T0000Z-211230T2200Z/
/O.NEW.KLOX.SC.Y.0177.211231T2100Z-220101T1000Z/
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
228 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM FRIDAY TO 2 AM PST
SATURDAY...

* WHAT...Hazardous sea conditions.

* WHERE...East Santa Barbara Channel from Pt. Conception to Pt. 
  Mugu CA including Santa Cruz Island and Inner waters from 
  Point Mugu to San Mateo Pt. CA including Santa Catalina and 
  Anacapa Islands.

* WHEN...From 1 PM Friday to 2 AM PST Saturday.

* 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.

&&

$$

PZZ676-310630-
/O.EXB.KLOX.SC.Y.0176.211231T0200Z-211231T2200Z/
/O.NEW.KLOX.GL.W.0052.211231T2200Z-220101T1000Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
228 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 2 PM
PST FRIDAY...
...GALE WARNING IN EFFECT FROM 2 PM FRIDAY TO 2 AM PST SATURDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and 
  combined seas 7 to 12 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.

* WHEN...For the Gale Warning, from 2 PM Friday to 2 AM PST 
  Saturday. For the Small Craft Advisory, from 6 PM this evening 
  to 2 PM PST Friday.

* 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.

&&

$$

PZZ673-310630-
/O.EXT.KLOX.SC.Y.0176.211231T0200Z-211231T2200Z/
/O.NEW.KLOX.GL.W.0052.211231T2200Z-220101T1000Z/
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
228 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO
2 PM PST FRIDAY...
...GALE WARNING IN EFFECT FROM 2 PM FRIDAY TO 2 AM PST SATURDAY...

* WHAT...Northwest winds 25 to 30 kt with gusts up to 40 kt and 
  combined seas 10 to 12 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.

* WHEN...For the Gale Warning, from 2 PM Friday to 2 AM PST 
  Saturday. For the Small Craft Advisory, from 6 PM this evening 
  to 2 PM PST Friday.

* 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.

&&

$$

PZZ645-310630-
/O.NEW.KLOX.SC.Y.0177.211231T2100Z-220101T1000Z/
Point Piedras Blancas to Point Sal westward out to 10 NM-
228 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM FRIDAY TO 2 AM PST
SATURDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 1 PM Friday to 2 AM PST Saturday.

* 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.

&&

$$

PZZ670-310630-
/O.EXT.KLOX.SC.Y.0176.211231T0200Z-220101T1400Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
228 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO
6 AM PST SATURDAY...

* WHAT...Hazardous sea conditions.

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

* WHEN...From 6 PM this evening to 6 AM PST Saturday.

* 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.

&&

$$

Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
448 PM PST Tue Dec 28 2021

Updated Aviation Discussion

.SYNOPSIS...28/120 PM.

A wet weather pattern with rain, wind, and mountain snow will
reestablish Wednesday through Thursday, especially in the San
Gabriel Mountains and Los Angeles County.  Temperatures will
remain significantly below average. Dry weather is expected Friday
through the upcoming holiday weekend.

&&

.SHORT TERM (TDY-FRI)...28/202 PM.

Synoptically, there is a CONUS-spanning trough centered over
Montana. Northwest flow will push a series of impulses down the
west side of this feature over the next few days. The strongest
will be coming from the British Columbia coast and arrive
Wednesday, develop into a cut-off low somewhere near Point
Conception, and then move southward to Baja. There remains
uncertainty with the exact timing and location of this transition
to a cut-off and as this transition will slow the system for
several hours it is during this time that the bulk of the
precipitation will fall. Right now that looks to be over Los
Angeles County on Wednesday through Thursday morning.

Widely scattered showers fell throughout the area this morning
with less than one tenth of an inch recorded. There is increasing
cloudiness in San Luis Obispo County beginning in advance of a
minor trough that will bring more showers to tonight through
Wednesday in SLO County. Temperatures in the coasts and valleys
remain about 10-15 degrees below normal and high temperatures in
the 50s will be the rule for the next 7 days.

Wednesday morning the main weather-producing trough will be
swinging through central California and there will be widespread
rain south of it and through all four of our counties. The trough
will dig south through Thursday morning, cutting off from the
flow near Point Conception. High PoPs remain in the forecast as
all ensemble members indicate rain developing across the region.
QPF amounts with this storm will range from 0.50 to 1.00 inch for
areas north of Point Conception. WPC has issued a slight risk area
for excessive rainfall for Wednesday and Wednesday night for
eastern Los Angeles County.

Model solutions suggest a southwesterly, upslope flow pattern
developing across Los Angeles, Orange, and San Bernardino
Counties. Because the system will pause during the transition to
the cutoff low the QPF amounts trend higher as one moves south of
Point Conception from the Santa Barbara South Coast and into
Ventura and Los Angeles Counties, unlike most winter storms that
tend to bring the higher amounts to the north. Higher resolution
model output suggests the focus of the precipitation in our area
will be over the San Gabriel Range. Currently have QPF values of
1.00 to 3.00 inches for the coast and valleys with around 1.50 to
2.00 inches in the Santa Barbara and Ventura County Mountains.
Amounts trend higher in the Los Angeles mountains closer to 2.00
to 5.00 inches in the San Gabriel Range.

There is still much uncertainty with the timing and amounts with
this system, but residents of the recently burned area in Los
Angeles County should monitor the latest forecasts as USGS
thresholds for mud and debris flow could be met with if the right
ingredients come together. That would probably take a thunderstorm
as the peak rainfall rates are only forecast to be 0.5-0.75
inches per hour. There is less than a 15% chance of thunder but it
is possible on Wednesday and rainfall rates would increase in a
thunderstorm.

Snow levels will start out around 3000 to 3500 feet today but
will lift through Wednesday morning to between 4500 and 5000 feet.
Precipitation with a weak boundary will spread over the area
beginning tonight and increase the potential for snowfall. A
Winter Storm Watch was added for the Santa Barbara, Ventura, and
Los Angeles County mountains. The greatest potential for heavy
snowfall is for the San Gabriel Range Wednesday and Wednesday
night, but there is still a possibilty of 6-12 inches for the
Santa Barbara and Ventura County mountains. Local amounts up to 18
inches is possible along favored south-facing slopes of the
mountains. The San Gabriel Range will be a different story.
Snowfall totals above 5000 feet could range between 12 and 36
inches with this storm. Local amounts up to 48 inches are
possible.

Of note is the wraparound potential with this system. Pattern
recognition continues to indicate the possibility of wraparound
precipitation as the 500 mb trough center scrapes Point
Conception. Wraparound precipitation could develop on Thursday and
possibly affect the Antelope Valley and develop a 'wet' Santa Ana
pattern for the coastal and valley areas of Los Angeles and
Ventura Counties. This will need to be monitored closely as EPS
ensemble members suggest accumulating snowfall for Palmdale.
Deterministic solutions of the GFS and ECMWF introduce a window
where snow could fall, but the other members seems to indicate a
higher potential.

Shower chances will trend downward on Friday as the trough exits
the region and offshore flow develops.

.LONG TERM (SAT-TUE)...28/207 PM.

A warming and drying trend will develop Saturday and Sunday will
likely be the warmest of the next seven as heights rise to 576 dam
and weak offshore flow persists. There are a few EPS solutions
that suggest moderately gusty Santa Ana winds could develop.

Some model solutions indicate an atmospheric river north of the
area between the 3rd and 4th. There is an impressive 130-kt jet
associated with this feature. Ensemble solutions are consolidating
the possibility of precipitation in our area around Tuesday, January
4th.

&&

.AVIATION...29/0039Z.

At 00Z at KLAX, there was no marine layer nor inversion.

Low to moderate confidence in 00Z TAFs. Timing of rain changes could
be off by +/- 2 hours. Cigs/vis could bounce between MVFR/IFR
during rain showers, with a 30% chance of reaching LIFR cons
south of Point Conception.

KLAX...Low confidence in the 00Z TAF. Cigs/vis could bounce
between bkn015-bkn035 and 3-P6SM during rain showers, with a 30%
chance 1/2-1 SM during heaviest rain. There is a 15% chance of
Tstms 30/00-06Z. Moderate confidence in east wind component being
at least 8 kt by 10z and continuing through 15z, then increasing
with a 30% chance of the east wind component reaching 14 kts by
13Z. Low confidence on when winds will switch back to west, there
is a 40% chance that winds switch south as early as 17Z and stay
south thru the period.

KBUR...Moderate confidence in the 00Z TAF. Cigs/vis could bounce
between MVFR/VFR during rain showers, with a 20% chance of
reaching LIFR conditions during heaviest rain.

&&

.MARINE...28/1016 AM.

In the outer waters, Small Craft Advisory (SCA) winds will
likely continue thru this afternoon across the southern waters
then then drop below SCA levels later this afternoon and remain
below SCA levels thru Thu night. There is a 40% chance of SCA
level N winds late Thu night, then SCA level NW to N winds are
likely Fri and Sat. Seas are starting to drop near advisory
levels, and will likely stay below SCA levels thru Thursday. There
is a 40% chance of SCA level seas Fri morning thru Sat morning.

In the inner waters north of Pt Sal, SCA conds are not expected
thru Sat except for a 30% chance of SCA level NW wind gusts on
Fri.

In the SBA Channel and the inner waters S of Pt. Mugu, SCA level
winds are expected to continue thru late tonight. There is a 30%
chance of SCA level winds to continue south of Ventura thru this
evening. SCA conds are not likely tonight thru Sat, except for a
40% chance of SCA level NW winds Fri.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Winter Storm Warning in effect from 10 PM this evening to 7
      PM PST Thursday for zones 52-53. (See LAXWSWLOX).
     Winter Storm Warning in effect from 1 AM Wednesday to 4 AM
      PST Friday for zone 54. (See LAXWSWLOX).
PZ...Small Craft Advisory in effect until 9 PM PST this evening
      for zones 673-676. (See LAXMWWLOX).

&&

.HAZARD POTENTIAL OUTLOOK (FRI-TUE).

Heavy rain, high wind, and mountain snow will create hazardous
driving conditions Thursday with showers possible on Friday.
Overnight temperatures will drop below freezing across some valley
areas through the weekend.

&&

PUBLIC...Hall/jld
AVIATION...Lund
MARINE...MW/Lund/Sirard
SYNOPSIS...jld

weather.gov/losangeles