Alert archive / California / Wind Advisories in 2021

Wind Advisory 3, NWS San Diego, CA

January 22, 2021Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this wind advisory at Jan 22, 2021, 8:02 AM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Jan 22, 2021, 12:00 PM PST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jan 22, 2021, 8:02 AM PST (16:02 UTC)
In effect from
Jan 22, 2021, 12:00 PM PST
Expired
Jan 22, 2021, 10:00 PM PST
In force
10 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 16:04 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

San Diego, CA (KNKX), launched 12:00Z, 4.0 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 2021-01-22Temperature 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 12:00Z on 2021-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.1939587897Sfc1 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
775 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

078 
WWUS76 KSGX 221602
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
802 AM PST Fri Jan 22 2021

CAZ055-056-058-060-065-230015-
/O.NEW.KSGX.WI.Y.0003.210122T2000Z-210123T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
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, 
Banning, and Desert Hot Springs
802 AM PST Fri Jan 22 2021

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 10 PM PST THIS
EVENING...

* WHAT...Southwest winds 20 to 35 mph with gusts to 45 mph
  expected. Local gusts to 55 to 60 MPH possible along and below
  the desert slopes.

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

* WHEN...From noon today to 10 PM PST this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  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.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego
2 follow-up statements
452 
WWUS76 KSGX 222046
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1246 PM PST Fri Jan 22 2021

CAZ055-056-058-060-065-230600-
/O.CON.KSGX.WI.Y.0003.000000T0000Z-210123T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
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, 
Banning, and Desert Hot Springs
1246 PM PST Fri Jan 22 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...

* WHAT...Southwest winds 20 to 35 mph with gusts to 45 mph 
  expected. Local gusts to 55 to 60 MPH possible along and below 
  the desert slopes.

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

* WHEN...Through 10 PM PST this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  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.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego
726 
WWUS76 KSGX 230532
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
932 PM PST Fri Jan 22 2021

CAZ055-056-058-060-065-230645-
/O.EXP.KSGX.WI.Y.0003.000000T0000Z-210123T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
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, 
Banning, and Desert Hot Springs
932 PM PST Fri Jan 22 2021

...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING...

Winds have largely diminished across the mountains, High Desert,
and San Gorgonio Pass, so the Wind Advisory will be allowed to
expire at 10 PM. Gusts to 35 mph are possible in wind prone 
passes and canyons through tonight. 

$$

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
Jan 21, 5:45 PM PSTWinter Weather AdvisorySGXRiverside, San Bernardino, San Diego60 hr
Jan 22, 12:12 PM PSTWinter Storm WatchSGXRiverside, San Bernardino, San Diego46 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.