Alert archive / California / High Wind Warnings in 2020

High Wind Warning 5, NWS San Diego, CA

February 26, 2020San Diego County, California

NWS San Diego, CA issued this high wind warning at Feb 26, 2020, 2:08 AM PST for San Diego County, California. It was in force for 14 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 26, 2020, 2:08 AM PST (10:08 UTC)
Expired
Feb 26, 2020, 4:00 PM PST
In force
14 hr
Issued by
NWS San Diego, CA

County San Diego County, CA

The radar

The San Diego radar (KNKX), 28 km from the middle of the area, began a volume at 10:11 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.

What was reported inside it

TimeReportWhereRemark
Feb 26, 3:40 AM PSTNON-TSTM WND GST 743 Sw Santa Ysabel, CAMESONET STATION DYESD DYE MOUNTAIN (SDGE).
Feb 26, 6:30 AM PSTNON-TSTM WND DMG1 Se Encinitas, CA75 YEAR OLD PINE TREE FELL ON HOUSE AND GARAGE. TOOK OUT POWER POLE. NO INJURIES. SDGE SITE RECORDED 39 MPH AT SOLANA BEACH AND 41 MPH AT ELFIN FOREST (UPSTREAM). 45 AT SAN DIEGUITO SITE. WONTAN AND SANTA FE DRIVES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

San Diego, CA (KNKX), launched 00:00Z, 10.1 hours before the alert went out and 47 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 2020-02-26Temperature 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 2020-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -118 square meters per square second.1939Sfc1 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
3590 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-118 m²/s²
0-3 km storm-relative helicity
-81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

137 
WWUS76 KSGX 261008
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
208 AM PST Wed Feb 26 2020

CAZ050-058-261815-
/O.UPG.KSGX.WI.Y.0007.000000T0000Z-200227T2000Z/
/O.NEW.KSGX.HW.W.0005.200226T1008Z-200227T0000Z/
/O.NEW.KSGX.WI.Y.0008.200227T0000Z-200227T2000Z/
San Diego County Valleys-San Diego County Mountains-
Including the cities of San Marcos, Poway, Julian, 
and Pine Valley
208 AM PST Wed Feb 26 2020

...HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO NOON PST
THURSDAY...

* WHAT...For the High Wind Warning, east winds 30 to 40 mph with
  gusts to 75 mph. Isolated gusts to 90 mph early this morning. 
  For the Wind Advisory, east winds 20 to 30 mph with gusts to 55 
  mph expected.

* WHERE...San Diego County Valleys and San Diego County 
  Mountains.

* WHEN...For the High Wind Warning, until 4 PM PST this 
  afternoon. For the Wind Advisory, from 4 PM this afternoon to 
  noon PST Thursday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

The winds will make driving difficult...especially for motorists
with high profile vehicles.  Watch for broken tree limbs and
downed power lines. 

&&

$$

CAZ048-055>057-065-261815-
/O.CON.KSGX.WI.Y.0007.000000T0000Z-200227T2000Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-Riverside County Mountains-
Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning-
Including the cities of Moreno Valley, Fontana, 
Idyllwild-Pine Cove, and Banning
208 AM PST Wed Feb 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY...

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

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

* WHEN...Until noon PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The winds will make driving difficult...especially for motorists
with high profile vehicles.  Watch for broken tree limbs and
downed power lines. 

&&

$$

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

17
2 follow-up statements
367 
WWUS76 KSGX 262036
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1236 PM PST Wed Feb 26 2020

CAZ050-058-270000-
/O.CON.KSGX.HW.W.0005.000000T0000Z-200227T0000Z/
/O.CON.KSGX.WI.Y.0008.200227T0000Z-200227T2000Z/
San Diego County Valleys-San Diego County Mountains-
Including the cities of San Marcos, Poway, Julian, 
and Pine Valley
1236 PM PST Wed Feb 26 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...
...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
NOON PST THURSDAY...

* WHAT...For the High Wind Warning, east winds 30 to 40 mph with
  gusts to 75 mph. For the Wind Advisory, east winds 20 to 30 mph
  with gusts to 55 mph expected.

* WHERE...San Diego County Valleys and San Diego County 
  Mountains.

* WHEN...For the High Wind Warning, until 4 PM PST this 
  afternoon. For the Wind Advisory, from 4 PM this afternoon to 
  noon PST Thursday.

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

&&

$$

CAZ048-055>057-065-270000-
/O.CON.KSGX.WI.Y.0007.000000T0000Z-200227T2000Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-Riverside County Mountains-
Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning-
Including the cities of Moreno Valley, Fontana, 
Idyllwild-Pine Cove, and Banning
1236 PM PST Wed Feb 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY...

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

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

* WHEN...Until noon PST Thursday.

* 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

Small
599 
WWUS76 KSGX 270008
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
408 PM PST Wed Feb 26 2020

CAZ050-058-270815-
/O.EXP.KSGX.HW.W.0005.000000T0000Z-200227T0000Z/
/O.CON.KSGX.WI.Y.0008.000000T0000Z-200227T2000Z/
San Diego County Valleys-San Diego County Mountains-
Including the cities of San Marcos, Poway, Julian, 
and Pine Valley
408 PM PST Wed Feb 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY...

* WHAT...East winds 15 to 25 mph with gusts to 50 mph.

* WHERE...Windiest conditions through and below mountain passes 
  and canyons, including along Interstate 8.

* WHEN...Through noon PST Thursday.

* 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.

&&

$$

CAZ048-055>057-065-270815-
/O.CON.KSGX.WI.Y.0007.000000T0000Z-200227T2000Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
San Bernardino County Mountains-Riverside County Mountains-
Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning-
Including the cities of Moreno Valley, Fontana, 
Idyllwild-Pine Cove, and Banning
408 PM PST Wed Feb 26 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY...

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

* WHERE...Windiest conditions through and below mountain passes 
  and canyons, including the San Gorgonio Pass.

* WHEN...Through noon PST Thursday.

* 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

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 26, 2:08 AM PSTWind AdvisorySGXSan Diego34 hr

Nearby

High Wind Warnings in California, 2020Every high wind warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.