Alert archive / California / High Wind Warnings in 2021

High Wind Warning 11, NWS San Diego, CA

December 26, 2021Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this high wind warning at Dec 26, 2021, 12:03 PM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Dec 27, 2021, 12:00 PM PST. It was in force for 8 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
Dec 26, 2021, 12:03 PM PST (20:03 UTC)
In effect from
Dec 27, 2021, 12:00 PM PST
Expired
Dec 27, 2021, 7:39 PM PST
In force
8 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 20:06 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, 8.1 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 2021-12-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-12-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.1939587897117136Sfc1 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
2 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
690 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

860 
WWUS76 KSGX 262003
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1203 PM PST Sun Dec 26 2021

CAZ060-062-065-270615-
/O.EXP.KSGX.WI.Y.0042.000000T0000Z-211226T2000Z/
/O.NEW.KSGX.HW.W.0011.211227T2000Z-211228T1100Z/
Apple and Lucerne Valleys-San Diego County Deserts-
San Gorgonio Pass Near Banning-
Including the cities of Victorville, Hesperia, Apple Valley, 
Borrego Springs, Banning, and Desert Hot Springs
1203 PM PST Sun Dec 26 2021

...HIGH WIND WARNING IN EFFECT FROM NOON MONDAY TO 3 AM PST
TUESDAY...
...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY...

* WHAT...Areas of west to southwest winds 20 to 40 mph with gusts
  to 70 mph expected.

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

* WHEN...From noon Monday to 3 AM PST Tuesday.

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

* ADDITIONAL DETAILS...Strongest winds will be near the foothills
  of the mountains and through San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution if you must drive. Secure loose objects.

&&

$$

CAZ056-058-262115-
/O.EXP.KSGX.WI.Y.0042.000000T0000Z-211226T2000Z/
Riverside County Mountains-San Diego County Mountains-
Including the city of Julian
1203 PM PST Sun Dec 26 2021

...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY...

Winds will continue to decrease today, though they will increase
again Monday with the arrival of the next winter storm.

$$

CAZ061-270615-
/O.NEW.KSGX.HW.W.0011.211227T2000Z-211228T1100Z/
Coachella Valley-
Including the cities of Indio, Palm Springs, Cathedral City, 
Palm Desert, Palm Desert Country, La Quinta, and Coachella
1203 PM PST Sun Dec 26 2021

...HIGH WIND WARNING IN EFFECT FROM NOON MONDAY TO 3 AM PST
TUESDAY...

* WHAT...Areas of west winds 15 to 35 mph with gusts to 60 mph 
  expected.

* WHERE...Coachella Valley.

* WHEN...From noon Monday to 3 AM PST Tuesday.

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

* ADDITIONAL DETAILS...Winds will be quite variable over short
  distances with calm or even easterly winds adjacent to locations
  receiving strong west winds. Strongest winds will be north of 
  Interstate 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution if you must drive. Secure loose objects.

&&

$$

Maxwell
3 follow-up statements
265 
WWUS76 KSGX 271125
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
325 AM PST Mon Dec 27 2021

CAZ060>062-065-272300-
/O.CON.KSGX.HW.W.0011.211227T2000Z-211228T1100Z/
Apple and Lucerne Valleys-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Victorville, Hesperia, Apple Valley, 
Indio, Palm Springs, Cathedral City, Palm Desert, 
Palm Desert Country, La Quinta, Coachella, Borrego Springs, 
Banning, and Desert Hot Springs
325 AM PST Mon Dec 27 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM NOON TODAY TO 3 AM
PST TUESDAY...

* WHAT...West winds 20 to 30 mph with gusts to 60 mph expected.

* WHERE...San Diego County Deserts, Apple and Lucerne Valleys, 
  Coachella Valley and San Gorgonio Pass Near Banning.

* WHEN...From noon today to 3 AM PST Tuesday.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution if you must drive.

&&

$$

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

17
058 
WWUS76 KSGX 272137
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
137 PM PST Mon Dec 27 2021

CAZ060>062-065-280600-
/O.CON.KSGX.HW.W.0011.000000T0000Z-211228T1100Z/
Apple and Lucerne Valleys-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Victorville, Hesperia, Apple Valley, 
Indio, Palm Springs, Cathedral City, Palm Desert, 
Palm Desert Country, La Quinta, Coachella, Borrego Springs, 
Banning, and Desert Hot Springs
137 PM PST Mon Dec 27 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY...

* WHAT...West winds 20 to 30 mph with local gusts to 65 mph 
  expected.

* WHERE...San Diego County Deserts, Apple and Lucerne Valleys, 
  Coachella Valley and San Gorgonio Pass Near Banning.

* WHEN...From noon today to 3 AM PST Tuesday.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution if you must drive.

&&

$$

Maxwell
212 
WWUS76 KSGX 280339
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
739 PM PST Mon Dec 27 2021

CAZ060>062-065-281100-
/O.CAN.KSGX.HW.W.0011.000000T0000Z-211228T1100Z/
/O.NEW.KSGX.WI.Y.0043.211228T0339Z-211228T1100Z/
Apple and Lucerne Valleys-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Victorville, Hesperia, Apple Valley, 
Indio, Palm Springs, Cathedral City, Palm Desert, Palm Desert 
Country, La Quinta, Coachella, Borrego Springs, Banning, and 
Desert Hot Springs.
739 PM PST Mon Dec 27 2021

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

* WHAT...West winds 15 to 25 mph with gusts to 45 mph. Locally 30
  to 45 mph with gusts to 60 mph near the San Gorgonio Pass

* WHERE...Apple and Lucerne Valleys, Coachella Valley, San Diego 
  County Deserts and San Gorgonio Pass Near Banning.

* WHEN...Until 3 AM PST Tuesday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down.

* ADDITIONAL DETAILS...Winds will be gusty through Tuesday
  morning, but High Winds are no longer expected.

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
Dec 26, 12:58 AM PSTAreal Flood AdvisorySGXOrange, Riverside, San Bernardino3 hr
Dec 26, 2:33 AM PSTGale WatchSGX11 hr
Dec 26, 3:25 AM PSTWind AdvisorySGXRiverside, San Bernardino, San Diego9 hr
Dec 26, 1:40 PM PSTWinter Storm WarningSGXRiverside, San Bernardino, San Diego37 hr
Dec 26, 1:42 PM PSTGale WarningSGX30 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.