Alert archive / California / Wind Advisories in 2020

Wind Advisory 75, NWS Los Angeles, CA

November 25, 2020Los Angeles County, California

NWS Los Angeles, CA issued this wind advisory at Nov 25, 2020, 2:04 PM PST for Los Angeles County, California. It took effect at Nov 26, 2020, 3:32 AM PST. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
Nov 25, 2020, 2:04 PM PST (22:04 UTC)
In effect from
Nov 26, 2020, 3:32 AM PST
Expired
Nov 27, 2020, 2:05 PM PST
In force
35 hr
Issued by
NWS Los Angeles, CA

County Los Angeles County, CA

The radar

The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 22:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Vandenberg AFB, CA (KVBG), launched 12:00Z, 10.1 hours before the alert went out and 214 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Vandenberg AFB, CA at 12:00Z on 2020-11-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Vandenberg AFB, CA at 12:00Z on 2020-11-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1731 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

843 
WWUS76 KLOX 252204
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
204 PM PST Wed Nov 25 2020

CAZ053-054-261130-
/O.NEW.KLOX.WI.Y.0075.201126T1500Z-201127T0200Z/
/O.NEW.KLOX.HW.A.0009.201127T0200Z-201127T2300Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton, 
Mount Wilson, and Sandberg
204 PM PST Wed Nov 25 2020

...WIND ADVISORY IN EFFECT FROM 7 AM TO 6 PM PST THURSDAY...
...HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
AFTERNOON...

* WHAT...For the Wind Advisory, northeast winds 25 to 35 mph with
  gusts up to 55 mph expected. For the High Wind Watch, northeast
  winds 25 to 40 mph with gusts up to 65 mph possible.

* WHERE...Ventura and Los Angeles County Mountains excluding the
  Santa Monica Range. Strongest in and around the Highway 14 and
  126 corridors.

* WHEN...For the Wind Advisory, from 7 AM to 6 PM PST Thursday. 
  For the High Wind Watch, from Thursday evening through Friday 
  afternoon.

* IMPACTS...Damaging winds could blow down large objects such as 
  trees and power lines. Power outages are possible. Travel 
  could be difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ044>046-088-547-261130-
/O.NEW.KLOX.WI.Y.0075.201126T1500Z-201127T0600Z/
/O.NEW.KLOX.HW.A.0009.201127T0600Z-201127T2300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
Los Angeles County San Fernando Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, 
Burbank, and Universal City
204 PM PST Wed Nov 25 2020

...WIND ADVISORY IN EFFECT FROM 7 AM TO 10 PM PST THURSDAY...
...HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
AFTERNOON...

* WHAT...For the Wind Advisory, northeast winds 20 to 30 mph with
  gusts up to 50 mph expected. For the High Wind Watch, northeast
  winds 25 to 35 mph with gusts up to 60 mph possible.

* WHERE...Ventura County Interior Valleys, Ventura County Coastal
  Valleys, Santa Monica Mountains, Santa Clarita Valley and San
  Fernando Valley. Winds strongest in the higher hills. 

* WHEN...For the Wind Advisory, from 7 AM to 10 PM PST Thursday. 
  For the High Wind Watch, from Thursday evening through Friday 
  afternoon.

* IMPACTS...Damaging winds could blow down large objects such as 
  trees and power lines. Power outages are possible. Travel 
  could be difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ040-041-261130-
/O.NEW.KLOX.WI.Y.0075.201126T1800Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, and Long Beach
204 PM PST Wed Nov 25 2020

...WIND ADVISORY IN EFFECT FROM 10 AM THURSDAY TO 3 PM PST
FRIDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Ventura County Coast and Los Angeles County Coast
  including Downtown Los Angeles, mainly from Ventura to Malibu.

* WHEN...From 10 AM Thursday to 3 PM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for high profile vehicles. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

MW
7 follow-up statements
592 
WWUS76 KLOX 261132
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
332 AM PST Thu Nov 26 2020

CAZ053-054-261945-
/O.UPG.KLOX.HW.A.0009.201127T0200Z-201127T2300Z/
/O.NEW.KLOX.HW.W.0012.201127T0000Z-201127T2300Z/
/O.EXT.KLOX.WI.Y.0075.201126T1132Z-201127T0000Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton, 
Mount Wilson, and Sandberg
332 AM PST Thu Nov 26 2020

...WIND ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HIGH WIND WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 3 PM
PST FRIDAY...

* WHAT...For the High Wind Warning, northeast winds 30 to 40 mph
  with gusts to 65 mph are expected. Isolated gusts to 75 mph are
  possible. For the Wind Advisory, northeast winds 25 to 35 mph
  with gusts to 55 mph are expected.

* WHERE...Ventura County Mountains and Los Angeles County 
  Mountains excluding the Santa Monica Range.

* WHEN...For the High Wind Warning, from 4 PM this afternoon to 
  3 PM PST Friday. For the Wind Advisory, until 4 PM PST this 
  afternoon.

* IMPACTS...Damaging winds will blow down large objects such as
  trees and power lines. Power outages are likely. Travel will be
  difficult, especially for drivers of high profile vehicles.

* ADDITIONAL DETAILS...Winds will affect travel on roadways
  included Highway 33 in Ventura County as well as Interstate 5
  and Highway 14 in Los Angeles County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use 
caution if you must drive.

&&

$$

CAZ044>046-088-547-261945-
/O.UPG.KLOX.HW.A.0009.201127T0600Z-201127T2300Z/
/O.NEW.KLOX.HW.W.0012.201127T0300Z-201127T2300Z/
/O.EXT.KLOX.WI.Y.0075.201126T1500Z-201127T0300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
Los Angeles County San Fernando Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, 
Burbank, and Universal City
332 AM PST Thu Nov 26 2020

...WIND ADVISORY NOW IN EFFECT FROM 7 AM THIS MORNING TO 7 PM PST
THIS EVENING...
...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 3 PM PST
FRIDAY...

* WHAT...For the High Wind Warning, northeast winds 25 to 40 mph
  with gusts to 60 mph are expected. For the Wind Advisory,
  northeast winds 20 to 30 mph with gusts to 50 mph are expected.

* WHERE...Ventura County Interior Valleys, Ventura County 
  Coastal Valleys, Santa Monica Mountains, Santa Clarita Valley 
  and San Fernando Valley.

* WHEN...For the High Wind Warning, from 7 PM this evening to 3 
  PM PST Friday. For the Wind Advisory, from 7 AM this morning 
  to 7 PM PST this evening.

* IMPACTS...Damaging winds will blow down large objects such as
  trees and power lines. Power outages are likely. Travel will be
  difficult, especially for drivers of high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use 
caution if you must drive.

&&

$$

CAZ548-261945-
/O.EXB.KLOX.WI.Y.0075.201127T0000Z-201127T1100Z/
Los Angeles County San Gabriel Valley-
Including the cities of Pasadena, San Gabriel, and Pomona
332 AM PST Thu Nov 26 2020

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 3 AM PST
FRIDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 45 mph 
  are expected, strongest in the foothills.

* WHERE...San Gabriel Valley.

* WHEN...From 4 PM this afternoon to 3 AM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power outages
  may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

CAZ040-041-261945-
/O.CON.KLOX.WI.Y.0075.201126T1800Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, and Long Beach
332 AM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
3 PM PST FRIDAY...

* WHAT...Areas of north to northeast winds 20 to 30 mph with gusts
  to 45 mph are expected. 

* WHERE...Ventura County Coast and Los Angeles County Coast
  including Downtown Los Angeles. Across the Los Angeles County
  Coast, winds are expected mainly from Malibu to the Hollywood
  Hills.

* WHEN...From 10 AM this morning to 3 PM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power outages
  may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$
533 
WWUS76 KLOX 261934
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1134 AM PST Thu Nov 26 2020

CAZ053-054-270500-
/O.CON.KLOX.HW.W.0012.201127T0000Z-201127T2300Z/
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T0000Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton, 
Mount Wilson, and Sandberg
1134 AM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...
...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 3 PM PST FRIDAY...

* WHAT...For the High Wind Warning, northeast winds 30 to 40 mph 
  with gusts to 65 mph are expected. Isolated gusts to 75 mph 
  are possible. For the Wind Advisory, northeast winds 25 to 35 
  mph with gusts to 55 mph are expected.

* WHERE...Ventura County Mountains and Los Angeles County
  Mountains excluding the Santa Monica Range. Strongest in around
  the Highway 14 and 126 corridors. 

* WHEN...For the High Wind Warning, from 4 PM this afternoon to 
  3 PM PST Friday. For the Wind Advisory, until 4 PM PST this 
  afternoon.

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

* ADDITIONAL DETAILS...Winds will affect travel on roadways 
  included Highway 33 in Ventura County as well as Interstate 5 
  and Highway 14 in Los Angeles County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use
caution if you must drive.

&&

$$

CAZ044>046-088-547-270500-
/O.CON.KLOX.HW.W.0012.201127T0300Z-201127T2300Z/
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T0300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
Los Angeles County San Fernando Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, 
Burbank, and Universal City
1134 AM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
3 PM PST FRIDAY...

* WHAT...For the High Wind Warning, northeast winds 25 to 40 mph 
  with gusts to 60 mph are expected. For the Wind Advisory, 
  northeast winds 20 to 30 mph with gusts to 50 mph are expected.

* WHERE...Ventura County Interior Valleys, Ventura County 
  Coastal Valleys, Santa Monica Mountains, Santa Clarita Valley 
  and San Fernando Valley.

* WHEN...For the High Wind Warning, from 7 PM this evening to 3 
  PM PST Friday. For the Wind Advisory, until 7 PM PST this 
  evening.

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use
caution if you must drive.

&&

$$

CAZ040-041-270500-
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, and Long Beach
1134 AM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY...

* WHAT...Areas of north to northeast winds 20 to 30 mph with 
  gusts to 45 mph are expected.

* WHERE...Ventura County Coast and Los Angeles County Coast 
  including Downtown Los Angeles. Across the Los Angeles County 
  Coast, winds are expected mainly from Malibu to the Hollywood 
  Hills.

* WHEN...Until 3 PM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

CAZ548-270500-
/O.CON.KLOX.WI.Y.0075.201127T0000Z-201127T1100Z/
Los Angeles County San Gabriel Valley-
Including the cities of Pasadena, San Gabriel, and Pomona
1134 AM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
3 AM PST FRIDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 45 mph are 
  expected, strongest in the foothills.

* WHERE...San Gabriel Valley.

* WHEN...From 4 PM this afternoon to 3 AM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

MW
915 
WWUS76 KLOX 262215
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
215 PM PST Thu Nov 26 2020

CAZ044>046-088-547-271100-
/O.CAN.KLOX.WI.Y.0075.000000T0000Z-201127T0300Z/
/O.EXT.KLOX.HW.W.0012.201126T2215Z-201127T2300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
Los Angeles County San Fernando Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, 
Burbank, and Universal City
215 PM PST Thu Nov 26 2020

...HIGH WIND WARNING NOW IN EFFECT UNTIL 3 PM PST FRIDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph,
  except gusts to 60 mph in the hills and below passes and 
  canyons.

* WHERE...Santa Clarita Valley, Ventura County Interior Valleys
  except the Ojai Valley, Ventura County Coastal Valleys, Santa 
  Monica Mountains and San Fernando Valley. Strongest in the hills
  and Santa Monica Mountains.

* WHEN...Until 3 PM PST Friday.

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ053-054-271100-
/O.CAN.KLOX.WI.Y.0075.000000T0000Z-201127T0000Z/
/O.EXT.KLOX.HW.W.0012.201126T2215Z-201127T2300Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton, 
Mount Wilson, and Sandberg
215 PM PST Thu Nov 26 2020

...HIGH WIND WARNING NOW IN EFFECT UNTIL 3 PM PST FRIDAY...

* WHAT...Northeast winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...Ventura County Mountains and Los Angeles County
  Mountains.

* WHEN...Until 3 PM PST Friday.

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

* ADDITIONAL DETAILS...Winds will affect travel on roadways 
  included Highway 33 in Ventura County as well as Interstate 5 
  and Highway 14 in Los Angeles County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ040-041-271100-
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, and Long Beach
215 PM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph.

* WHERE...Ventura County Coast and Los Angeles County Coast 
  including Downtown Los Angeles. Across the Los Angeles County 
  Coast, winds are expected mainly from Malibu to the Hollywood 
  Hills.

* WHEN...Until 3 PM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

CAZ548-271100-
/O.CON.KLOX.WI.Y.0075.201127T0000Z-201127T1100Z/
Los Angeles County San Gabriel Valley-
Including the cities of Pasadena, San Gabriel, and Pomona
215 PM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Northeast winds 15 to 25 mph with gusts up to 40 mph 
  expected.

* WHERE...San Gabriel Valley. Strongest in the foothills.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

MW
806 
WWUS76 KLOX 270415
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
815 PM PST Thu Nov 26 2020

CAZ547-271100-
/O.CAN.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
/O.EXA.KLOX.WI.Y.0075.000000T0000Z-201127T1100Z/
Los Angeles County San Fernando Valley-
Including the cities of Woodland Hills, Northridge, Burbank, 
and Universal City
815 PM PST Thu Nov 26 2020

...WIND ADVISORY IN EFFECT UNTIL 3 AM PST FRIDAY...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...Northeast winds 15 to 25 mph with gusts up to 40 mph 
  expected.

* WHERE...San Fernando Valley. Strongest in the foothills and the
  far western portion.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ053-054-271400-
/O.CON.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton, 
Mount Wilson, and Sandberg
815 PM PST Thu Nov 26 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY...

* WHAT...Northeast winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...Ventura County Mountains and Los Angeles County 
  Mountains.

* WHEN...Until 3 PM PST Friday.

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

* ADDITIONAL DETAILS...Winds will affect travel on roadways 
  included Highway 33 in Ventura County as well as Interstate 5 
  and Highway 14 in Los Angeles County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ044>046-088-271400-
/O.CON.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Santa Clarita, Newhall, and Valencia
815 PM PST Thu Nov 26 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph, 
  except gusts to 60 mph in the hills and below passes and 
  canyons.

* WHERE...Santa Clarita Valley, Ventura County Interior Valleys 
  except the Ojai Valley, Ventura County Coastal Valleys, Santa 
  Monica Mountains and San Fernando Valley. Strongest in the 
  hills and Santa Monica Mountains.

* WHEN...Until 3 PM PST Friday.

* IMPACTS...Damaging winds will blow down large objects such as
  trees and power lines. Power outages are likely. Travel will be
  difficult, especially for drivers of high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ040-041-271400-
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, and Long Beach
815 PM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph.

* WHERE...Ventura County Coast and Los Angeles County Coast 
  including Downtown Los Angeles. Across the Los Angeles County 
  Coast, winds are expected mainly from Malibu to the Hollywood 
  Hills.

* WHEN...Until 3 PM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and
  make driving difficult, especially for drivers of high profile
  vehicles. Tree limbs could be blown down and a few power outages
  may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

CAZ548-271100-
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T1100Z/
Los Angeles County San Gabriel Valley-
Including the cities of Pasadena, San Gabriel, and Pomona
815 PM PST Thu Nov 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Northeast winds 15 to 25 mph with gusts up to 40 mph.

* WHERE...San Gabriel Valley. Strongest in the foothills.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and
  make driving difficult, especially for drivers of high profile
  vehicles. Tree limbs could be blown down and a few power outages
  may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

ASR
938 
WWUS76 KLOX 271051
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
251 AM PST Fri Nov 27 2020

CAZ548-271200-
/O.EXP.KLOX.WI.Y.0075.000000T0000Z-201127T1100Z/
Los Angeles County San Gabriel Valley-
Including the cities of Pasadena, San Gabriel, and Pomona
251 AM PST Fri Nov 27 2020

...WIND ADVISORY WILL EXPIRE AT 3 AM PST EARLY THIS MORNING...

Winds have diminished so the wind advisory will be allowed to
expire.

$$

CAZ053-054-272000-
/O.CON.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton, 
Mount Wilson, and Sandberg
251 AM PST Fri Nov 27 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Northeast winds 30 to 40 mph with gusts to 65 mph.
  Isolated gusts to 75 mph through mid morning. 

* WHERE...Ventura County Mountains and Los Angeles County 
  Mountains.

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

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

* ADDITIONAL DETAILS...Winds will affect travel on roadways
  including Highway 33 in Ventura County as well as Interstate 5 
  and Highway 14 in Los Angeles County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use 
caution if you must drive.

&&

$$

CAZ044>046-088-272000-
/O.CON.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Santa Clarita, Newhall, and Valencia
251 AM PST Fri Nov 27 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Areas of north to northeast winds 25 to 35 mph with gusts
  to 60 mph, strongest in the hills and below passes and canyons.

* WHERE...Santa Clarita Valley, Ventura County Interior Valleys
  except the Ojai Valley, Ventura County Coastal Valleys and Santa
  Monica Mountains.

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

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use 
caution if you must drive.

&&

$$

CAZ547-272000-
/O.EXT.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Los Angeles County San Fernando Valley-
Including the cities of Woodland Hills, Northridge, Burbank, 
and Universal City
251 AM PST Fri Nov 27 2020

...WIND ADVISORY NOW IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...

* WHAT...Areas of north to northeast winds 20 to 30 mph with gusts
  to 45 mph.

* WHERE...San Fernando Valley, mainly in the foothills and in the
  northern and western portions of the valley.

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

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

CAZ040-041-272000-
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, and Long Beach
251 AM PST Fri Nov 27 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph.

* WHERE...Ventura County Coast and Los Angeles County Coast 
  including Downtown Los Angeles. Across the Los Angeles County 
  Coast, winds are expected mainly from Malibu to the Hollywood 
  Hills.

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

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$
856 
WWUS76 KLOX 271940
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1140 AM PST Fri Nov 27 2020

CAZ053-054-272300-
/O.CON.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton, 
Mount Wilson, and Sandberg
1140 AM PST Fri Nov 27 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Northeast winds 30 to 40 mph with gusts to 65 mph. 
  Isolated gusts to 75 mph through mid morning.

* WHERE...Ventura County Mountains and Los Angeles County 
  Mountains.

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

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

* ADDITIONAL DETAILS...Winds will affect travel on roadways 
  including Highway 33 in Ventura County as well as Interstate 5 
  and Highway 14 in Los Angeles County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use
caution if you must drive.

&&

$$

CAZ044>046-088-272300-
/O.CON.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Santa Clarita, Newhall, and Valencia
1140 AM PST Fri Nov 27 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Areas of north to northeast winds 25 to 35 mph with 
  gusts to 60 mph, strongest in the hills and below passes and 
  canyons.

* WHERE...Santa Clarita Valley, Ventura County Interior Valleys 
  except the Ojai Valley, Ventura County Coastal Valleys and 
  Santa Monica Mountains.

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

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are likely. Travel will 
  be difficult, especially for drivers of high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas. If possible,
remain in your home during the windstorm, and avoid windows. Use
caution if you must drive.

&&

$$

CAZ040-041-272300-
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, and Long Beach
1140 AM PST Fri Nov 27 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph.

* WHERE...Ventura County Coast and Los Angeles County Coast 
  including Downtown Los Angeles. Across the Los Angeles County 
  Coast, winds are expected mainly from Malibu to the Hollywood 
  Hills.

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

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$

CAZ547-272300-
/O.CON.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Los Angeles County San Fernando Valley-
Including the cities of Woodland Hills, Northridge, Burbank, 
and Universal City
1140 AM PST Fri Nov 27 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WHAT...Areas of north to northeast winds 20 to 30 mph with 
  gusts to 45 mph.

* WHERE...San Fernando Valley, mainly in the foothills and in 
  the northern and western portions of the valley.

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

* IMPACTS...Gusty winds will blow around unsecured objects and 
  make driving difficult, especially for drivers of high profile 
  vehicles. Tree limbs could be blown down and a few power 
  outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects, such as lawn furniture.

&&

$$
473 
WWUS76 KLOX 272205
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
205 PM PST Fri Nov 27 2020

CAZ044-280615-
/O.CAN.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
/O.NEW.KLOX.FZ.W.0008.201128T1000Z-201128T1700Z/
Ventura County Interior Valleys-
Including the cities of Santa Paula, Fillmore, Ojai, and Piru
205 PM PST Fri Nov 27 2020

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST SATURDAY FOR THE
OJAI VALLEY...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...Sub-freezing temperatures between 29 and 32 degrees 
  expected.

* WHERE...Ojai Valley.

* WHEN...From 2 AM to 9 AM PST Saturday.

* IMPACTS...Frost and freeze conditions will kill crops and 
  other sensitive vegetation. Extended exposure to cold can 
  cause hypothermia for animals and people. Vehicle windshields 
  will be frosted.

* ADDITIONAL DETAILS...Winds have diminished below warning
  thresholds, but gusty northeast winds will persist through
  Saturday morning across the Santa Clara River Valley and
  adjacent hills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. Plan for
extra time to defrost vehicle windshields.

&&

$$

CAZ045-046-053-054-088-272315-
/O.CAN.KLOX.HW.W.0012.000000T0000Z-201127T2300Z/
Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Santa Clarita Valley-
Including the cities of Thousand Oaks, Simi Valley, Moorpark, 
Newbury Park, Lockwood Valley, Mount Pinos, Acton, Mount Wilson, 
Sandberg, Santa Clarita, Newhall, and Valencia
205 PM PST Fri Nov 27 2020

...HIGH WIND WARNING IS CANCELLED...

Winds have diminished below warning thresholds and the High Wind
Warning has been cancelled. However, gusty northeast winds up to
45 mph will persist until sunset. Another round of gusty northeast
winds will prevail tonight into Saturday but should remain mostly
below Advisory levels.

$$

CAZ040-041-547-272315-
/O.CAN.KLOX.WI.Y.0075.000000T0000Z-201127T2300Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
Los Angeles County San Fernando Valley-
Including the cities of Ventura, Oxnard, Camarillo, Malibu, 
Santa Monica, Beverly Hills, Hollywood, Long Beach, 
Woodland Hills, Northridge, Burbank, and Universal City
205 PM PST Fri Nov 27 2020

...WIND ADVISORY IS CANCELLED...

Winds have largely diminished below Advisory levels and the Wind
Advisory has been cancelled. However, gusty northeast winds up to
25 mph will persist through Saturday morning.

$$

CAZ034-035-280615-
/O.NEW.KLOX.FR.Y.0007.201128T1000Z-201128T1700Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
Including the cities of San Luis Obispo, Pismo Beach, Morro Bay, 
Cambria, San Simeon, Santa Maria, Lompoc, and Vandenberg
205 PM PST Fri Nov 27 2020

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PST SATURDAY...

* WHAT...Temperatures as low as 35 will result in frost 
  formation.

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

* WHEN...From 2 AM to 9 AM PST Saturday.

* IMPACTS...Frost can damage sensitive plants and harm pets if 
  left unprotected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

Sirard

What forecasters said that day

The local office's own words before this wind 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 wind advisory went out at Nov 25, 1:54 PM PST, 10 minutes earlier.

Area forecast discussion, Nov 25, 1:54 PM PST, 10 minutes before
Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
154 PM PST Wed Nov 25 2020

.SYNOPSIS...25/121 PM.

Patchy low clouds and fog will return tonight before gusty Santa
Ana winds develop Thursday, especially in Los Angeles and Ventura
Counties. The winds will peak in strength late Thursday night into
Friday morning, then weaken but still locally gusty into Saturday
through early next week. Afternoon temperatures warm on Thursday
and into the weekend. Another strong Santa Ana event is possible
next Tuesday and Wednesday.

&&

.SHORT TERM (TDY-SAT)...25/145 PM.

Low clouds have dissipated faster than models had shown today but
likely to redevelop this evening and overnight, mainly from
Ventura south. Clouds could spread as far inland as the San
Gabriel Valley before Santa Ana winds kick in Thursday morning.
As usual winds will start up first in the LA/Ventura mountains
then spread quickly into the valleys and eventually to the coast,
though how fast this happens will depend on the stubbornness of
the marine layer. If low clouds fail to reform or are just patchy
at best that's a good sign that winds will reach the coast much
sooner, but a solid low cloud deck would delay that arrival
potentially by several hours. Models certainly favoring the slower
arrival, at least for LA County coast but the clouds today
dissipated much faster than models had indicated so at this point
am more confident in faster arrival.

With this in mind went with wind advisories for most LA/Ventura
areas Thursday (minus the Antelope and San Gabriel valleys at
least initially), starting first in the mountains then valleys
and lastly the coast by late morning or early afternoon. Gusty
winds will also push out over the coastal waters but with this
first push they will be confined mainly to the waters off the
Ventura and Malibu coast.

Then the real crux of the event begins Thursday night with warning
level wind across the mountains (especially LA County, and
including the Santa Monicas) and possibly some of the valleys as
well. Typically even with these stronger events warning level
valley winds are confined to the elevated areas like the Santa
Susanna mountains (Wiley Ridge area) so am not super confident in
the watch there, at least for the more populated areas. Advisory
level winds also possible across the foothills of the San Gabriel
Valley but that's still more than 24 hours away. And gusty
northeast winds will push out of Orange County towards Catalina
Thursday night and bring gusty winds to the island into Friday
morning.

Winds expected to decrease Friday afternoon and all areas may drop
below advisory levels before sunset, but some pockets of advisory
level winds are possible again later Friday night into Saturday
morning which may require a small extension of the advisories in
certain areas, namely the LA mountains and the LA/Ventura valleys.

Temperatures will be on the mild side for this event as there is
some cold advection aloft. Daytime temps mostly 60s to lower 70s.
though some mid 70s by Fri/Sat as ridging aloft develops. In
areas without winds, like the Ojai Valley, Antelope Valley, and
interior SLO County, overnight temps will be quite cold, 20s and
30s.

.LONG TERM (SUN-WED)...25/153 PM.

Light offshore flow will continue through Monday while the ridge
aloft Sunday shifts east Sunday night and is replaced by a weak
trough Monday with essentially zero impact. Models coming into
better agreement for Tue/Wed showing another cold upper low
dropping into the Great Basin generating yet another moderate to
strong Santa Ana event. Most of the ECMWF ensembles show this with
potentially even stronger gradients and wind speeds than with the
event this week. Will see how models handle this going forward,
but very high confidence in this dry pattern likely extending well
into Dec with periods of offshore winds.

&&

.AVIATION...25/1804Z.

At 1730Z at KLAX...The inversion was 1600 ft deep. The top of the
inversion was around 2500 feet with a temperature of about 12
degrees Celsius.

Moderate to hi confidence overall in the 18Z TAFs. MVFR cigs
should linger at the start of the TAF period for KSMO, KLAX and
KLGB. Then there is a 60% chance of low clouds and IFR/MVFR cigs
at these airfields this evening to late tonight. Otherwise and
elsewhere, VFR conditions will prevail thru Thu morning. Gusty N
to N to NE winds are expected to develop Thu morning for KCMA,
KVNY and KPMD.

KLAX...Moderate to hi confidence in the 18Z TAF. IFR cigs are
expected 18Z-20Z, then there is a 60% chance of IFR cigs 01Z-04Z.
Cigs should improve to MVFR 04Z-14Z before offshore flow clears
the low clouds to VFR. The timing of the onset and dissipation of
any low clouds tonight may be off +/- an hour or two. Otherwise,
VFR conditions will prevail thru Thu afternoon. NE winds less than
8 kt are expected Thu morning.

KBUR...Hi confidence in the 18Z TAF with VFR conditions expected
thru Thu morning.

&&

.MARINE...25/151 PM.

Across the outer waters...Small Craft Advisory (SCA) level
conditions will prevail through late Thursday night. There is a
40% chance of Gale Force wind gusts tonight through early
Thursday morning. There is also a 50% chance of SCA level NE winds
for the southern waters on Friday. Conditions will be below SCA
level Friday night through Sunday, then there will be a 40%-50%
chance of SCA wind gusts at times on Monday.

Across the nearshore waters of the Central Coast... Winds will
increase to SCA level this afternoon and continue through early
Thursday morning. SCA-level swell will affect the area tonight
through Thu evening. Winds and seas should then be below SCA
levels late Thursday night through Monday.

Across the inner waters south of Point Conception... Gusty NE
winds to SCA levels will develop Thursday night and persist into
Fri morning, with a 50% chance of Gale Force wind gusts at times
S of Ventura out to near Santa Catalina Island for Thursday night.
Short period steep wind waves are expected to develop as well.
These hazardous conditions will affect Catalina Island, including
Avalon Harbor. Otherwise and elsewhere, conditions will be below
SCA levels through Monday.

&&

.BEACHES...25/151 PM.

A long-period northwest swell will bring high surf to the beaches
along the Central Coast through Thanksgiving Day. Surf will peak
tonight and Thursday morning at 12 to 15 feet with local sets to
18 feet along west to northwest facing beaches. Strong rip
currents are likely and beach erosion is possible. Minor coastal
flooding around the time of high tides will be possible.

Most of the swell energy will avoid the southern California
bight. Beaches south of Point Conception will have elevated surf
and a high risk of rip currents through Thanksgiving Day, but a
high surf advisory will not be needed for this area.

&&

.FIRE WEATHER...25/115 PM.

Forecast is on track. The Fire Weather Watches will be converted
to Red Flag Warnings. The areas under the warning are the same as
the watch, with the same 2pm Thursday start time, but the end time
is now 6pm Friday. This should match our San Diego office.

Moderate to locally strong Santa Ana winds will develop through
the day on Thursday, peak Thursday evening through Friday morning,
then gradually weaken into Saturday but stay locally breezy
through the weekend. Wind gusts between 40 and 65 mph are expected
over much of Los Angeles and Ventura Counties during the peak.
Meanwhile, humidities will increase tonight into Thursday morning,
then lower sharply Thursday afternoon and evening to 12 to 25
percent, lowering further to 5 to 15 percent for Friday through
Sunday. As a result, Red Flag conditions are expected to form
over much of Los Angeles and Ventura Counties by Thursday
afternoon or evening when the wind and drier air start to
coincide, then continue through Friday afternoon. There is a
50 percent chance for low-end Red Flag criteria to be met Friday
night through Saturday or Sunday over the mountains and windiest
valleys. There is a growing potential for moderate Santa Ana
winds and Red Flag conditions over Los Angeles and Ventura
Counties sometime Tuesday through Thursday.

We are urging the public to be extremely cautious with anything
that can start a fire. Some ignition sources are obvious
(campfires, welding equipment, cigarettes, fireworks) but others
are less so (lawn trimmers, dragging trailer chains, firearms).
Those living in wildland interfaces and areas vulnerable to
wildfire should have a plan and be ready to evacuate if a fire
starts.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory in effect until 3 AM PST Friday for zones
      34-35. (See LAXCFWLOX).
     Wind Advisory in effect from 10 AM Thursday to 3 PM PST
      Friday for zones 40-41. (See LAXNPWLOX).
     Wind Advisory in effect from 7 AM to 10 PM PST Thursday for
      zones 44>46-88-547. (See LAXNPWLOX).
     High Wind Watch in effect from Thursday evening through
      Friday afternoon for zones 44>46-53-54-88-547. (See LAXNPWLOX).
     Wind Advisory in effect from 7 AM to 6 PM PST Thursday for
      zones 53-54. (See LAXNPWLOX).
     Red Flag Warning in effect from 2 PM Thursday to 6 PM PST
      Friday for zones 240-241-244>246-253-254-288-547-548. (See LAXRFWLOX).
PZ...Small Craft Advisory in effect until 3 AM PST Thursday for
      zone 645. (See LAXMWWLOX).
     Gale Watch in effect from Thursday evening through late
      Thursday night for zone 655. (See LAXMWWLOX).
     Small Craft Advisory in effect until midnight PST Thursday
      night for zone 670. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 PM PST Thursday for
      zone 673. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PST Friday for zone
      676. (See LAXMWWLOX).

&&

.HAZARD POTENTIAL OUTLOOK (SAT-WED).

An extended dry and warmer pattern is expected Saturday through
Monday with persistent elevated fire weather conditions. Another
strong Santa Ana wind event is possible next Tuesday and
Wednesday.

&&

PUBLIC...MW
AVIATION...Sirard
MARINE...Sirard
BEACHES...Sirard
FIRE...Kittell
SYNOPSIS...MW

weather.gov/losangeles

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 25, 5:26 AM PSTDense Fog AdvisoryLOX4 hr
Nov 25, 2:01 PM PSTGale WatchLOX24 hr
Nov 25, 2:04 PM PSTHigh Wind WatchLOXLos Angeles13 hr
Nov 25, 3:20 PM PSTRed Flag WarningLOXLos Angeles3 days

Nearby

Wind Advisories in California, 2020Every wind advisory in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.