Alert archive / California / High Wind Warnings in 2021

High Wind Warning 2, NWS Los Angeles, CA

January 8, 2021Los Angeles County, California

NWS Los Angeles, CA issued this high wind warning at Jan 8, 2021, 11:08 PM PST for Los Angeles County, California. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 8, 2021, 11:08 PM PST (07:08 UTC)
Expired
Jan 9, 2021, 3:00 AM PST
In force
4 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 07:08 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

San Diego, CA (KNKX), launched 00:00Z, 7.1 hours before the alert went out and 184 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, San Diego, CA at 00:00Z on 2021-01-09Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 00:00Z on 2021-01-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.19395878Sfc1 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
2680 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

661 
WWUS76 KLOX 090708
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1108 PM PST Fri Jan 8 2021

CAZ088-091515-
/O.EXP.KLOX.HW.W.0001.000000T0000Z-210109T0700Z/
/O.UPG.KLOX.WI.Y.0006.000000T0000Z-210109T2300Z/
/O.NEW.KLOX.HW.W.0002.210109T0708Z-210109T1100Z/
/O.EXB.KLOX.WI.Y.0005.210109T1100Z-210109T2300Z/
Santa Clarita Valley-
Including the cities of Santa Clarita, Newhall, and Valencia
1108 PM PST Fri Jan 8 2021

...HIGH WIND WARNING IN EFFECT UNTIL 3 AM PST SATURDAY...
...WIND ADVISORY IN EFFECT FROM 3 AM TO 3 PM PST SATURDAY...


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

* WHERE...Santa Clarita Valley.

* WHEN...For the High Wind Warning, until 3 AM PST Saturday. For 
  the Wind Advisory, from 3 AM to 3 PM PST Saturday.

* IMPACTS...Damaging winds will blow down large objects such as 
  trees and power lines. Power outages are expected. Travel will 
  be difficult, especially for 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.

&&

$$

CAZ039-052-091500-
/O.EXP.KLOX.HW.W.0001.000000T0000Z-210109T0700Z/
/O.CON.KLOX.WI.Y.0006.000000T0000Z-210109T1500Z/
Santa Barbara County South Coast-Santa Barbara County Mountains-
Including the cities of Santa Barbara, Montecito, Carpinteria, 
San Marcos Pass, San Rafael Wilderness Area, 
and Dick Smith Wilderness Area
1108 PM PST Fri Jan 8 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST SATURDAY...

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

* WHERE...Santa Barbara County South Coast and Santa Barbara 
  County Mountains.

* WHEN...Until 7 AM PST Saturday.

* 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.

&&

$$

CAZ059-090815-
/O.EXP.KLOX.WI.Y.0006.000000T0000Z-210109T0700Z/
Antelope Valley-
Including the cities of Lancaster and Palmdale
1108 PM PST Fri Jan 8 2021

...WIND ADVISORY HAS EXPIRED...

$$

CAZ053-054-091515-
/O.CON.KLOX.HW.W.0001.000000T0000Z-210109T2300Z/
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
1108 PM PST Fri Jan 8 2021

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

* WHAT...North winds 25 to 40 mph with gusts up to 65 mph.

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

* WHEN...Until 3 PM PST Saturday.

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

* ADDITIONAL DETAILS...Gusty cross winds may affect area roadways,
  including Highway 33 in Ventura County and 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.

&&

$$

CAZ044-045-547-091515-
/O.CON.KLOX.WI.Y.0005.000000T0000Z-210109T2300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Los Angeles County San Fernando Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Woodland Hills, Northridge, Burbank, and Universal City
1108 PM PST Fri Jan 8 2021

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

* WHAT...North to northeast winds 20 to 35 mph with gusts 45 to 
  55 mph expected.

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

* WHEN...Until 3 PM PST Saturday.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area roadways,
  including Interstate 5, Highway 126, and the 23, 101, 118, 170,
  210 and 405 freeways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ046-091515-
/O.CON.KLOX.WI.Y.0005.000000T0000Z-210109T2300Z/
Santa Monica Mountains Recreational Area-
1108 PM PST Fri Jan 8 2021

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

* WHAT...North to northeast winds 15 to 30 mph with gusts up to 
  between 45 and 55 mph expected.

* WHERE...Santa Monica Mountains.

* WHEN...Until 3 PM PST Saturday.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area roadways,
  including Kanan, Malibu Canyon, Topanga, and Decker Canyon 
  Roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-091515-
/O.CON.KLOX.WI.Y.0005.210109T1500Z-210109T2300Z/
Ventura County Coast-
Including the cities of Ventura, Oxnard, and Camarillo
1108 PM PST Fri Jan 8 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 3 PM PST
SATURDAY...

* WHAT...Northeast winds 15 to 30 mph with gusts up to 40 mph 
  expected.

* WHERE...Ventura County Coast.

* WHEN...From 7 AM to 3 PM PST Saturday.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area roadways,
  including Highway 101 and Pacific Coast Highway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ034-091500-
/O.CON.KLOX.WI.Y.0005.000000T0000Z-210109T1500Z/
San Luis Obispo County Central Coast-
Including the cities of San Luis Obispo, Pismo Beach, Morro Bay, 
Cambria, and San Simeon
1108 PM PST Fri Jan 8 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST SATURDAY...

* WHAT...North to northeast winds 15 to 30 mph with gusts 45 mph 
  expected.

* WHERE...San Luis Obispo County Central Coast.

* WHEN...Until 7 AM PST Saturday.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area roadways,
  including Highways 1 and 101.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-091515-
/O.CON.KLOX.WI.Y.0005.210109T1500Z-210109T2300Z/
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Malibu, Santa Monica, Beverly Hills, 
Hollywood, and Long Beach
1108 PM PST Fri Jan 8 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 3 PM PST
SATURDAY...

* WHAT...North to northeast winds 20 to 30 mph with gusts to 40 
  mph expected.

* WHERE...The coastal strip from Malibu to the Hollywood Hills.

* WHEN...From 7 AM to 3 PM PST Saturday.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area roadways,
  including Pacific Coast Highway and the 10 and 405 freeways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
1 follow-up statement
570 
WWUS76 KLOX 091105
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
305 AM PST Sat Jan 9 2021

CAZ088-091915-
/O.EXP.KLOX.HW.W.0002.000000T0000Z-210109T1100Z/
/O.CON.KLOX.WI.Y.0005.000000T0000Z-210109T2300Z/
Santa Clarita Valley-
Including the cities of Santa Clarita, Newhall, and Valencia
305 AM PST Sat Jan 9 2021

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

* WHAT...Areas of northeast winds 20 to 30 mph with gusts up to 
  50 mph.

* WHERE...Santa Clarita Valley.

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

* 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.

&&

$$

CAZ053-054-091915-
/O.CON.KLOX.HW.W.0001.000000T0000Z-210109T2300Z/
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
305 AM PST Sat Jan 9 2021

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

* WHAT...Areas of north to northeast winds 25 to 40 mph with gusts
  to 60 mph.

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

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

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

* ADDITIONAL DETAILS...Gusty cross winds may affect area 
  roadways, including Highway 33 in Ventura County and 
  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.

&&

$$

CAZ039-052-091500-
/O.CON.KLOX.WI.Y.0006.000000T0000Z-210109T1500Z/
Santa Barbara County South Coast-Santa Barbara County Mountains-
Including the cities of Santa Barbara, Montecito, Carpinteria, 
San Marcos Pass, San Rafael Wilderness Area, 
and Dick Smith Wilderness Area
305 AM PST Sat Jan 9 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST THIS MORNING...

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

* WHERE...Santa Barbara County South Coast and Santa Barbara 
  County Mountains.

* WHEN...Until 7 AM PST this morning.

* 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.

&&

$$

CAZ044-045-547-091915-
/O.CON.KLOX.WI.Y.0005.000000T0000Z-210109T2300Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Los Angeles County San Fernando Valley-
Including the cities of Santa Paula, Fillmore, Ojai, Piru, 
Thousand Oaks, Simi Valley, Moorpark, Newbury Park, 
Woodland Hills, Northridge, Burbank, and Universal City
305 AM PST Sat Jan 9 2021

...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 50 are expected.

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

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

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area 
  roadways, including Interstate 5, Highway 126, and the 23, 
  101, 118, 170, 210 and 405 freeways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ046-091915-
/O.CON.KLOX.WI.Y.0005.000000T0000Z-210109T2300Z/
Santa Monica Mountains Recreational Area-
305 AM PST Sat Jan 9 2021

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

* WHAT...Areas of north to northeast winds 20 to 35 mph with gusts
  to 55 mph are expected.

* WHERE...Santa Monica Mountains.

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

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area 
  roadways, including Kanan, Malibu Canyon, Topanga, and Decker 
  Canyon Roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ040-091915-
/O.CON.KLOX.WI.Y.0005.210109T1500Z-210109T2300Z/
Ventura County Coast-
Including the cities of Ventura, Oxnard, and Camarillo
305 AM PST Sat Jan 9 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 3 PM
PST THIS AFTERNOON...

* WHAT...Areas of northeast winds 15 to 30 mph with gusts to 40 
  mph are expected.

* WHERE...Ventura County Coast.

* WHEN...From 7 AM this morning to 3 PM PST this afternoon.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area 
  roadways, including Highway 101 and Pacific Coast Highway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ041-091915-
/O.CON.KLOX.WI.Y.0005.210109T1500Z-210109T2300Z/
Los Angeles County Coast including Downtown Los Angeles-
Including the cities of Malibu, Santa Monica, Beverly Hills, 
Hollywood, and Long Beach
305 AM PST Sat Jan 9 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 3 PM
PST THIS AFTERNOON...

* WHAT...Areas of north to northeast winds 15 to 25 mph with 
  gusts to 40 mph are expected.

* WHERE...The coastal strip from Malibu to the Hollywood Hills.

* WHEN...From 7 AM this morning to 3 PM PST this afternoon.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area 
  roadways, including Pacific Coast Highway and the 10 and 405 
  freeways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ034-091500-
/O.CON.KLOX.WI.Y.0005.000000T0000Z-210109T1500Z/
San Luis Obispo County Central Coast-
Including the cities of San Luis Obispo, Pismo Beach, Morro Bay, 
Cambria, and San Simeon
305 AM PST Sat Jan 9 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST THIS MORNING...

* WHAT...Areas of north to northeast winds 15 to 30 mph with gusts
  to 40 mph are expected.

* WHERE...San Luis Obispo County Central Coast.

* WHEN...Until 7 AM PST this morning.

* 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.

* ADDITIONAL DETAILS...Gusty cross winds may affect area 
  roadways, including Highways 1 and 101.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 8, 7:26 PM PSTHigh Wind WarningLOXLos Angeles19 hr
Jan 8, 7:26 PM PSTWind AdvisoryLOXLos Angeles11 hr

Nearby

High Wind Warnings in California, 2021Every high wind warning in 2021

Sources

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