Alert archive / California / Wind Advisories in 2021

Wind Advisory 21, NWS San Diego, CA

March 29, 20214 counties in California

NWS San Diego, CA issued this wind advisory at Mar 29, 2021, 12:46 PM PDT for 4 counties in California. It took effect at Mar 30, 2021, 6:00 AM PDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Mar 29, 2021, 12:46 PM PDT (19:46 UTC)
In effect from
Mar 30, 2021, 6:00 AM PDT
Expired
Mar 31, 2021, 3:00 PM PDT
In force
33 hr
Issued by
NWS San Diego, CA

Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 19:49 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, 7.8 hours before the alert went out and 124 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 2021-03-29Temperature 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 2021-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.193958Sfc1 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
3326 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
-50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

185 
WWUS76 KSGX 291946
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1246 PM PDT Mon Mar 29 2021

CAZ048-055-300400-
/O.NEW.KSGX.WI.Y.0021.210330T1300Z-210331T2100Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, 
Lake Arrowhead, and Running Springs
1246 PM PDT Mon Mar 29 2021

...WIND ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 2 PM PDT
WEDNESDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 50 mph 
  expected.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire and San Bernardino County Mountains.

* WHEN...From 6 AM Tuesday to 2 PM PDT Wednesday.

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

* ADDITIONAL DETAILS...Strongest winds will be near and below the
  Cajon Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ057-300400-
/O.NEW.KSGX.WI.Y.0021.210331T0100Z-210331T2100Z/
Santa Ana Mountains and Foothills-
1246 PM PDT Mon Mar 29 2021

...WIND ADVISORY IN EFFECT FROM 6 PM TUESDAY TO 2 PM PDT
WEDNESDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 50 mph 
  expected.

* WHERE...Santa Ana Mountains and Foothills.

* WHEN...From 6 PM Tuesday to 2 PM PDT Wednesday.

* 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
5 follow-up statements
871 
WWUS76 KSGX 300310
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
810 PM PDT Mon Mar 29 2021

CAZ048-055-301300-
/O.CON.KSGX.WI.Y.0021.210330T1300Z-210331T2100Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, 
Lake Arrowhead, and Running Springs
810 PM PDT Mon Mar 29 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 6 AM TUESDAY TO 2 PM PDT
WEDNESDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 50 mph 
  expected.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire and San Bernardino County Mountains.

* WHEN...From 6 AM Tuesday to 2 PM PDT Wednesday.

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

* ADDITIONAL DETAILS...Strongest winds will be near and below the
  Cajon Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ057-301300-
/O.CON.KSGX.WI.Y.0021.210331T0100Z-210331T2100Z/
Santa Ana Mountains and Foothills-
810 PM PDT Mon Mar 29 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM TUESDAY TO 2 PM PDT
WEDNESDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 50 mph 
  expected.

* WHERE...Santa Ana Mountains and Foothills.

* WHEN...From 6 PM Tuesday to 2 PM PDT Wednesday.

* 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
831 
WWUS76 KSGX 300954
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
254 AM PDT Tue Mar 30 2021

CAZ554-302245-
/O.EXB.KSGX.WI.Y.0021.210330T1300Z-210331T1900Z/
Orange County Inland Areas-
Including the city of Orange
254 AM PDT Tue Mar 30 2021

...WIND ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO NOON PDT
WEDNESDAY...

* WHAT...East winds 20 to 30 mph with gusts to 50 mph expected.

* WHERE...Orange County Inland Areas.

* WHEN...From 6 AM this morning to noon PDT Wednesday.

* 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.

&&

$$

CAZ050-056-058-065-302245-
/O.EXB.KSGX.WI.Y.0021.210331T0700Z-210331T2200Z/
San Diego County Valleys-Riverside County Mountains-
San Diego County Mountains-San Gorgonio Pass Near Banning-
Including the cities of Julian, Pine Valley, Banning, 
and Desert Hot Springs
254 AM PDT Tue Mar 30 2021

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM PDT
WEDNESDAY...

* WHAT...Northeast winds 15 to 25 mph with gusts to 45 mph 
  expected.

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

* WHEN...From midnight tonight to 3 PM PDT Wednesday.

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

* ADDITIONAL DETAILS...For Riverside County, strongest winds near
  and below the San Gorgonio pass in the Inland Empire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ048-055-302245-
/O.EXT.KSGX.WI.Y.0021.210330T1300Z-210331T2200Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-
Including the cities of San Bernardino, Fontana, 
Rancho Cucamonga, Crestline, and Running Springs
254 AM PDT Tue Mar 30 2021

...WIND ADVISORY NOW IN EFFECT FROM 6 AM THIS MORNING TO 3 PM PDT
WEDNESDAY...

* WHAT...Northeast winds 15 to 25 mph with gusts to 50 mph 
  expected.

* WHERE...San Bernardino County Mountains and San Bernardino and 
  Riverside County Valleys-The Inland Empire.

* WHEN...From 6 AM this morning to 3 PM PDT Wednesday.

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

* ADDITIONAL DETAILS...Strongest winds near and below the Cajon
  Pass and the San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ057-302245-
/O.EXT.KSGX.WI.Y.0021.210330T1300Z-210331T1900Z/
Santa Ana Mountains and Foothills-
254 AM PDT Tue Mar 30 2021

...WIND ADVISORY NOW IN EFFECT FROM 6 AM THIS MORNING TO NOON PDT
WEDNESDAY...

* WHAT...North winds 20 to 30 mph with gusts to 50 mph expected.

* WHERE...Santa Ana Mountains and Foothills.

* WHEN...From 6 AM this morning to noon PDT Wednesday.

* 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

17
143 
WWUS76 KSGX 302018
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
118 PM PDT Tue Mar 30 2021

CAZ048-055-310500-
/O.CON.KSGX.WI.Y.0021.000000T0000Z-210331T2200Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-
Including the cities of San Bernardino, Fontana, 
Rancho Cucamonga, Crestline, and Running Springs
118 PM PDT Tue Mar 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM WEDNESDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 50 mph 
  expected.

* WHERE...San Bernardino County Mountains and San Bernardino and 
  Riverside County Valleys-The Inland Empire.

* WHEN...Until 3 PM Wednesday.

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

* ADDITIONAL DETAILS...Strongest winds near and below the Cajon 
  Pass and the San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ057-554-310500-
/O.CON.KSGX.WI.Y.0021.000000T0000Z-210331T1900Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the city of Orange
118 PM PDT Tue Mar 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON WEDNESDAY...

* WHAT...East winds 20 to 30 mph with gusts to 50 mph.

* WHERE...Orange County Inland Areas.

* WHEN...Until noon Wednesday.

* 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.

&&

$$

CAZ050-056-058-065-310500-
/O.CON.KSGX.WI.Y.0021.210331T0700Z-210331T2200Z/
San Diego County Valleys-Riverside County Mountains-
San Diego County Mountains-San Gorgonio Pass Near Banning-
Including the cities of Julian, Pine Valley, Banning, 
and Desert Hot Springs
118 PM PDT Tue Mar 30 2021

...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM 
WEDNESDAY...

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

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

* WHEN...From midnight tonight to 3 PM Wednesday.

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

* ADDITIONAL DETAILS...For Riverside County, strongest winds 
  near and below the San Gorgonio pass in the Inland Empire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Moede
219 
WWUS76 KSGX 310407
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
907 PM PDT Tue Mar 30 2021

CAZ048-055-311300-
/O.CON.KSGX.WI.Y.0021.000000T0000Z-210331T2200Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-
Including the cities of San Bernardino, Fontana, 
Rancho Cucamonga, Crestline, and Running Springs
907 PM PDT Tue Mar 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT WEDNESDAY...

* WHAT...Northeast winds 20 to 30 mph with gusts to 50 mph 
  expected.

* WHERE...San Bernardino County Mountains and San Bernardino and 
  Riverside County Valleys-The Inland Empire.

* WHEN...Until 3 PM Wednesday.

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

* ADDITIONAL DETAILS...Strongest winds near and below the Cajon 
  Pass and the San Gorgonio Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ057-554-311300-
/O.CON.KSGX.WI.Y.0021.000000T0000Z-210331T1900Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the city of Orange
907 PM PDT Tue Mar 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PDT WEDNESDAY...

* WHAT...East winds 20 to 30 mph with gusts to 50 mph.

* WHERE...Orange County Inland Areas.

* WHEN...Until noon Wednesday.

* 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.

&&

$$

CAZ050-056-058-065-311300-
/O.CON.KSGX.WI.Y.0021.210331T0700Z-210331T2200Z/
San Diego County Valleys-Riverside County Mountains-
San Diego County Mountains-San Gorgonio Pass Near Banning-
Including the cities of Julian, Pine Valley, Banning, 
and Desert Hot Springs
907 PM PDT Tue Mar 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT WEDNESDAY...

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

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

* WHEN...From midnight tonight to 3 PM Wednesday.

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

* ADDITIONAL DETAILS...For Riverside County, strongest winds 
  near and below the San Gorgonio pass in the Inland Empire.

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
499 
WWUS76 KSGX 310922
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
222 AM PDT Wed Mar 31 2021

CAZ057-554-311900-
/O.CON.KSGX.WI.Y.0021.000000T0000Z-210331T1900Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the cities of Santa Ana, Orange, and Mission Viejo
222 AM PDT Wed Mar 31 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PDT TODAY...

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

* WHERE...Orange County Inland Areas and Santa Ana Mountains and 
  Foothills.

* WHEN...Until noon PDT today.

* 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.

&&

$$

CAZ048-050-055-056-058-065-312200-
/O.CON.KSGX.WI.Y.0021.000000T0000Z-210331T2200Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Diego County Valleys-San Bernardino County Mountains-
Riverside County Mountains-San Diego County Mountains-
San Gorgonio Pass Near Banning-
Including the cities of San Bernardino, Ontario, Fontana, 
Rancho Cucamonga, Crestline, Running Springs, Julian, 
Pine Valley, and Banning
222 AM PDT Wed Mar 31 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...Northeast winds 15 to 25 mph with gusts to 45 mph.

* WHERE...San Gorgonio Pass Near Banning, San Diego County 
  Valleys, Riverside County Mountains, San Bernardino County 
  Mountains, San Diego County Mountains and San Bernardino and 
  Riverside County Valleys-The Inland Empire.

* WHEN...Until 3 PM PDT this afternoon.

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

* ADDITIONAL DETAILS...Strongest winds near and below the Cajon
  and San Gorgonio Passes and in San Diego County from the coastal
  slopes of the mountains into the adjacent inland valleys.

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

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.