Alert archive / California / Wind Advisories in 2021

Wind Advisory 23, NWS San Diego, CA

April 7, 2021Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this wind advisory at Apr 7, 2021, 2:48 AM PDT for Riverside County, San Bernardino County, San Diego County, California. It took effect at Apr 7, 2021, 10:00 PM PDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Apr 7, 2021, 2:48 AM PDT (09:48 UTC)
In effect from
Apr 7, 2021, 10:00 PM PDT
Expired
Apr 9, 2021, 12:00 AM PDT
In force
26 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 09:48 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, 9.8 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 2021-04-07Temperature 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 2021-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
1931 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-14 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.

506 
WWUS76 KSGX 070948
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
248 AM PDT Wed Apr 7 2021

CAZ055-056-058-061-062-065-072245-
/O.NEW.KSGX.WI.Y.0023.210408T0500Z-210408T1300Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Julian and Desert Hot Springs
248 AM PDT Wed Apr 7 2021

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 6 AM PDT
THURSDAY...

* WHAT...West winds 20 to 30 mph with gusts to 55 mph expected.

* WHERE...San Bernardino County Mountains, Riverside County 
  Mountains, San Diego County Mountains, Coachella Valley, San 
  Diego County Deserts and San Gorgonio Pass Near Banning.

* WHEN...From 10 PM this evening to 6 AM PDT Thursday.

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

* ADDITIONAL DETAILS...The strongest winds will be along and near
  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
5 follow-up statements
366 
WWUS76 KSGX 072057
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
157 PM PDT Wed Apr 7 2021

CAZ055-056-058-061-062-065-080500-
/O.CON.KSGX.WI.Y.0023.210408T0500Z-210408T1300Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Julian and Desert Hot Springs
157 PM PDT Wed Apr 7 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
6 AM PDT THURSDAY...

* WHAT...West winds 20 to 30 mph with gusts to 55 mph expected.

* WHERE...San Bernardino County Mountains, Riverside County 
  Mountains, San Diego County Mountains, Coachella Valley, San 
  Diego County Deserts and San Gorgonio Pass Near Banning.

* WHEN...From 10 PM this evening to 6 AM PDT Thursday.

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

* ADDITIONAL DETAILS...The strongest winds will be along and near
  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.

&&

$$

Moede
834 
WWUS76 KSGX 080456
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
956 PM PDT Wed Apr 7 2021

CAZ055-056-058-061-062-065-081300-
/O.CON.KSGX.WI.Y.0023.210408T0500Z-210408T1300Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Julian and Desert Hot Springs
956 PM PDT Wed Apr 7 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT THURSDAY...

* WHAT...West winds 20 to 30 mph with gusts to 55 mph at times.

* WHERE...San Bernardino County Mountains, Riverside County 
  Mountains, San Diego County Mountains, Coachella Valley, San 
  Diego County Deserts and San Gorgonio Pass Near Banning.

* WHEN...From 10 PM this evening to 6 AM PDT Thursday.

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

* ADDITIONAL DETAILS...The strongest winds will be along and 
  near 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.

&&

$$

jmb

For more information from the National Weather Service visit
http://weather.gov/sandiego
347 
WWUS76 KSGX 080940
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
240 AM PDT Thu Apr 8 2021

CAZ055-056-058-061-062-065-082230-
/O.EXT.KSGX.WI.Y.0023.000000T0000Z-210409T0700Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Julian and Borrego Springs
240 AM PDT Thu Apr 8 2021

...WIND ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PDT TONIGHT...

* WHAT...West winds 20 to 30 mph with gusts to 55 mph.

* WHERE...San Diego County Deserts, Coachella Valley, San 
  Gorgonio Pass Near Banning, Riverside County Mountains, San 
  Bernardino County Mountains and San Diego County Mountains.

* WHEN...Until midnight PDT tonight.

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

* ADDITIONAL DETAILS...Winds are expected to be strongest through sunrise,
  then again this evening.

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
138 
WWUS76 KSGX 082104
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
204 PM PDT Thu Apr 8 2021

CAZ055-056-058-061-062-065-090700-
/O.CON.KSGX.WI.Y.0023.000000T0000Z-210409T0700Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Julian and Borrego Springs
204 PM PDT Thu Apr 8 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT TONIGHT...

* WHAT...West winds 20 to 30 mph with gusts to 55 mph.

* WHERE...San Diego County Deserts, Coachella Valley, San 
  Gorgonio Pass Near Banning, Riverside County Mountains, San 
  Bernardino County Mountains and San Diego County Mountains.

* WHEN...Until midnight tonight.

* 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
139 
WWUS76 KSGX 090451
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
951 PM PDT Thu Apr 8 2021

CAZ055-056-058-061-062-065-090700-
/O.CON.KSGX.WI.Y.0023.000000T0000Z-210409T0700Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Julian and Borrego Springs
951 PM PDT Thu Apr 8 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT...

* WHAT...West winds 20 to 30 mph with gusts to 50 to 55 mph.

* WHERE...San Diego County Deserts, Coachella Valley, San 
  Gorgonio Pass Near Banning, Riverside County Mountains, San 
  Bernardino County Mountains and San Diego County Mountains.

* WHEN...Until midnight tonight.

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

* ADDITIONAL DETAILS...Gusty winds will diminish later tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

jmb

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
Apr 7, 11:38 AM PDTSmall Craft AdvisorySGX3 days

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.