Alert archive / California / Wind Advisories in 2021

Wind Advisory 35, NWS San Diego, CA

October 24, 2021Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this wind advisory at Oct 24, 2021, 1:38 PM PDT for Riverside County, San Bernardino County, San Diego County, California. It took effect at Oct 25, 2021, 10:00 AM PDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Oct 24, 2021, 1:38 PM PDT (20:38 UTC)
In effect from
Oct 25, 2021, 10:00 AM PDT
Expired
Oct 26, 2021, 2:00 AM PDT
In force
16 hr
Issued by
NWS San Diego, CA

Counties Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 20:35 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 12:00Z, 8.6 hours before the alert went out and 145 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 12:00Z on 2021-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2021-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
728 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

441 
WWUS76 KSGX 242038
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
138 PM PDT Sun Oct 24 2021

CAZ055-056-058-060-062-065-250500-
/O.NEW.KSGX.WI.Y.0035.211025T1700Z-211026T0900Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, Pine Valley, Victorville, Hesperia, Apple Valley, 
Borrego Springs, Banning, and Desert Hot Springs
138 PM PDT Sun Oct 24 2021

...WIND ADVISORY IN EFFECT FROM 10 AM MONDAY TO 2 AM PDT
TUESDAY...

* WHAT...Southwest to west winds 20 to 35 mph with local gusts to
  55 mph expected.

* WHERE...San Bernardino County Mountains, Riverside County 
  Mountains, San Diego County Mountains, Apple and Lucerne 
  Valleys, San Diego County Deserts and San Gorgonio Pass Near 
  Banning.

* WHEN...From 10 AM Monday to 2 AM PDT Tuesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Strongest winds will be on the desert
  mountain slopes and through San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Maxwell
4 follow-up statements
587 
WWUS76 KSGX 250414
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
914 PM PDT Sun Oct 24 2021

CAZ055-056-058-060-062-065-251300-
/O.CON.KSGX.WI.Y.0035.211025T1700Z-211026T0900Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, Pine Valley, Victorville, Hesperia, Apple Valley, 
Borrego Springs, Banning, and Desert Hot Springs
914 PM PDT Sun Oct 24 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM MONDAY TO 2 AM PDT
TUESDAY...

* WHAT...Southwest to west winds 20 to 35 mph with local gusts 
  to 55 mph expected.

* WHERE...San Bernardino County Mountains, Riverside County 
  Mountains, San Diego County Mountains, Apple and Lucerne 
  Valleys, San Diego County Deserts and San Gorgonio Pass Near 
  Banning.

* WHEN...From 10 AM Monday to 2 AM PDT Tuesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Strongest winds will be on the desert 
  mountain slopes and through San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego
762 
WWUS76 KSGX 251025
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
325 AM PDT Mon Oct 25 2021

CAZ055-056-058-060-062-065-252300-
/O.CON.KSGX.WI.Y.0035.211025T1700Z-211026T0900Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, Pine Valley, Victorville, Hesperia, Apple Valley, 
Borrego Springs, Banning, and Desert Hot Springs
325 AM PDT Mon Oct 25 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
2 AM PDT TUESDAY...

* WHAT...South winds will become west 20 to 30 mph in the
  afternoon with gusts to 55 mph expected. Winds will diminish
  from north to south tonight.

* WHERE...San Diego County Deserts, Apple and Lucerne Valleys, 
  San Gorgonio Pass Near Banning, Riverside County Mountains, 
  San Bernardino County Mountains and San Diego County Mountains.

* WHEN...From 10 AM this morning to 2 AM PDT Tuesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Strongest winds will be on the desert
  slopes of the mountains and in the northern Coachella Valley
  below the San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego

17
384 
WWUS76 KSGX 252026
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
126 PM PDT Mon Oct 25 2021

CAZ055-056-058-060-062-065-260500-
/O.CON.KSGX.WI.Y.0035.000000T0000Z-211026T0900Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, Pine Valley, Victorville, Hesperia, Apple Valley, 
Borrego Springs, Banning, and Desert Hot Springs
126 PM PDT Mon Oct 25 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT TUESDAY...

* WHAT...South winds will become west 20 to 30 mph this afternoon
  with gusts to 65 mph expected. Winds will diminish from San 
  Bernardino County in the north to San Diego County in the south 
  tonight.

* WHERE...San Diego County Deserts, Apple and Lucerne Valleys, 
  San Gorgonio Pass Near Banning, Riverside County Mountains, 
  San Bernardino County Mountains and San Diego County Mountains.

* WHEN...Through 2 AM PDT Tuesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Strongest winds will be on the desert 
  slopes of the mountains and in the northern Coachella Valley 
  below the San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Maxwell
790 
WWUS76 KSGX 260443
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
943 PM PDT Mon Oct 25 2021

CAZ055-056-058-060-062-065-260900-
/O.CON.KSGX.WI.Y.0035.000000T0000Z-211026T0900Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, Pine Valley, Victorville, Hesperia, Apple Valley, 
Borrego Springs, Banning, and Desert Hot Springs
943 PM PDT Mon Oct 25 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT TUESDAY...

* WHAT...West winds 20 to 30 mph with gusts to 50 mph expected. 
  Winds will diminish from San Bernardino County in the north to 
  San Diego County in the south tonight.

* WHERE...San Diego County Deserts, Apple and Lucerne Valleys, 
  San Gorgonio Pass Near Banning, Riverside County Mountains, 
  San Bernardino County Mountains and San Diego County Mountains.

* WHEN...Through 2 AM PDT Tuesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Strongest winds will be on the desert 
  slopes of the mountains and in the northern Coachella Valley 
  below the San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 24, 1:20 AM PDTHigh Surf AdvisorySGXOrange, San Diego3 days
Oct 24, 1:49 AM PDTSmall Craft AdvisorySGX48 hr

Nearby

Wind Advisories in California, 2021Every wind advisory in 2021

Sources

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