Alert archive / California / Wind Advisories in 2021

Wind Advisory 6, NWS San Diego, CA

February 13, 2021Orange County, San Diego County, California

NWS San Diego, CA issued this wind advisory at Feb 13, 2021, 3:03 AM PST for Orange County, San Diego County, California. It took effect at Feb 13, 2021, 4:00 PM PST. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Feb 13, 2021, 3:03 AM PST (11:03 UTC)
In effect from
Feb 13, 2021, 4:00 PM PST
Expired
Feb 13, 2021, 6:27 PM PST
In force
2 hr
Issued by
NWS San Diego, CA

Counties Orange County, CA, San Diego County, CA

The radar

The San Diego radar (KNKX), 53 km from the middle of the area, began a volume at 11:02 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, 11.1 hours before the alert went out and 62 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 2021-02-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2021-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 square meters per square second.1939587897117Sfc1 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
7 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
835 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

082 
WWUS76 KSGX 131103
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
303 AM PST Sat Feb 13 2021

CAZ055-056-058-060>062-065-132200-
/O.CON.KSGX.HW.W.0003.210213T1800Z-210214T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
Coachella Valley-San Diego County Deserts-
San Gorgonio Pass Near Banning-
Including the cities of Big Bear City, Big Bear Lake, Wrightwood,
Idyllwild-Pine Cove, Julian, Victorville, Hesperia, Apple Valley,
and Banning
303 AM PST Sat Feb 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
10 PM PST THIS EVENING...

* WHAT...West winds 30 to 40 mph with gusts to 70 mph expected.
  Strongest winds near the desert slopes of the mountains and on 
  the desert side of the San Gorgonio Pass.

* WHERE...Ridges and desert slopes of the San Bernardino County 
  Mountains, Riverside County Mountains, and San Diego County 
  Mountains. Along the desert foothill areas of Apple and 
  Lucerne Valleys, the San Diego County Deserts, and below the 
  San Gorgonio Pass.

* WHEN...From 10 AM to 10 PM PST Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Power outages are possible. Travel will be difficult, especially
  for high profile vehicles. Areas of blowing dust could lead to
  sudden and severe restrictions in visibility.

* ADDITIONAL DETAILS...Strongest winds are expected on Saturday
  evening. Strong and erratic gusts may create dangerous travel 
  conditions for high profile vehicles along State Route 111 in 
  the Coachella Valley, and parts of the Palms to Pines Highway 
  through the Riverside County Mountains.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ043-552-132200-
/O.NEW.KSGX.WI.Y.0006.210214T0000Z-210214T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
Including the cities of Vista, Carlsbad, Encinitas, Chula Vista, 
National City, San Diego, Huntington Beach, and Costa Mesa
303 AM PST Sat Feb 13 2021

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST
SUNDAY...

* WHAT...West winds 15 to 25 mph with gusts to 35 mph expected.

* WHERE...San Diego County Coastal Areas and Orange County 
  Coastal Areas.

* WHEN...From 4 PM this afternoon to 4 AM PST Sunday.

* 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
794 
WWUS76 KSGX 132059
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1259 PM PST Sat Feb 13 2021

CAZ055-056-058-060>062-065-140600-
/O.CON.KSGX.HW.W.0003.000000T0000Z-210214T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
Coachella Valley-San Diego County Deserts-
San Gorgonio Pass Near Banning-
Including the cities of Big Bear City, Big Bear Lake, Wrightwood,
Idyllwild-Pine Cove, Julian, Victorville, Hesperia, Apple Valley,
and Banning
1259 PM PST Sat Feb 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* WHAT...West winds 25 to 40 mph with gusts 55 to 70 mph. 
  Isolated gusts to 75 mph for remote wind-prone sites.

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

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

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially
  for high profile vehicles. Areas of blowing dust could lead to 
  sudden and severe restrictions in visibility.

* ADDITIONAL DETAILS...The most dangerous conditions for high 
  profile vehicles are expected along I-10 near Whitewater, 
  Highway 62 between I-10 and Yucca Valley, Highway 247 east of 
  Lucerne Valley, and I-8 east of Pine Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ043-552-140600-
/O.CON.KSGX.WI.Y.0006.210214T0000Z-210214T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
Including the cities of Vista, Carlsbad, Encinitas, Chula Vista, 
National City, San Diego, Huntington Beach, and Costa Mesa
1259 PM PST Sat Feb 13 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 AM PST SUNDAY...

* WHAT...Northwest winds 15 to 20 mph expected. Gusts to 30 mph
  possible near beaches, locally 35 mph.

* WHERE...Orange County Coastal Areas and San Diego County 
  Coastal Areas.

* WHEN...From 4 PM this afternoon to 4 AM PST Sunday.

* 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.

&&

$$

Rodriguez

For more information from the National Weather Service 
visit http://weather.gov/sandiego
129 
WWUS76 KSGX 140227
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
627 PM PST Sat Feb 13 2021

CAZ043-552-140330-
/O.CAN.KSGX.WI.Y.0006.000000T0000Z-210214T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
627 PM PST Sat Feb 13 2021

...WIND ADVISORY IS CANCELLED...

Winds are no longer expected to reach Advisory criteria. 

$$

CAZ055-056-058-060>062-065-140600-
/O.CON.KSGX.HW.W.0003.000000T0000Z-210214T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
Coachella Valley-San Diego County Deserts-
San Gorgonio Pass Near Banning-
Including the cities of Big Bear City, Big Bear Lake, Wrightwood,
Idyllwild-Pine Cove, Julian, Victorville, Hesperia, Apple Valley,
and Banning
627 PM PST Sat Feb 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* WHAT...West winds 25 to 40 mph with gusts 55 to 65 mph. 
 
* WHERE...San Diego County Deserts, Apple and Lucerne Valleys, 
  Coachella Valley, San Gorgonio Pass Near Banning, Riverside 
  County Mountains, San Bernardino County Mountains and San 
  Diego County Mountains.

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

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, 
  especially for high profile vehicles. Areas of blowing dust 
  could lead to sudden and severe restrictions in visibility.

* ADDITIONAL DETAILS...Winds will slowly subside later this
  evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

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
Feb 12, 6:44 PM PSTGale WarningSGX27 hr
Feb 12, 6:44 PM PSTSmall Craft AdvisorySGX9 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.