Alert archive / California / Wind Advisories in 2021

Wind Advisory 43, NWS San Diego, CA

December 27, 2021Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this wind advisory at Dec 27, 2021, 7:39 PM PST for Riverside County, San Bernardino County, San Diego County, California. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Dec 27, 2021, 7:39 PM PST (03:39 UTC)
Expired
Dec 28, 2021, 3:00 AM PST
In force
7 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 03:42 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, 3.7 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 00:00Z on 2021-12-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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 00:00Z on 2021-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.1939587897117136156Sfc1 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
15 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
771 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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 27, 8:03 PM PSTSmall Craft AdvisorySGX13 hr
Dec 28, 3:00 AM PSTWinter Storm WatchSGXRiverside, San Bernardino, San Diego10 hr
Dec 28, 11:07 AM PSTFlood WatchSGXOrange, Riverside, San Bernardino, San Diego48 hr
Dec 28, 1:26 PM PSTWinter Storm WarningSGXRiverside, San Bernardino, San Diego55 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.