Alert archive / California / High Wind Warnings in 2020

High Wind Warning 4, NWS San Diego, CA

February 10, 20204 counties in California

NWS San Diego, CA issued this high wind warning at Feb 10, 2020, 9:37 AM PST for 4 counties in California. It was in force for 28 hr. 35 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 10, 2020, 9:37 AM PST (17:37 UTC)
Expired
Feb 11, 2020, 2:00 PM PST
In force
28 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 17:39 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 10, 10:07 AM PSTNON-TSTM WND DMG5 Nnw Fontana, CACALTRANS REPORTS OVERTURNED SEMI TRUCK DUE TO STRONG WINDS.
Feb 10, 12:46 PM PSTNON-TSTM WND DMG4 Nw Fontana, CASEMI TRUCK OVERTURNED ALONG HIGHWAY 210 JUST EAST OF I-15 DUE TO STRONG WINDS.
Feb 11, 1:23 AM PSTNON-TSTM WND GST 565 N Thousand Palms, CAMESONET STATION EW3393 SKY VALLEY 2.
Feb 11, 2:30 AM PSTNON-TSTM WND DMG2 Ne Yucaipa, CATREES ON HOUSE AND CAR IN YUCAIPA PER CALFIRE SAN BERNARDINO RESPONSE. SCE PIGSAH PEAK RECORDED GUST TO 54 MPH AT 250 AM.
Feb 11, 4:00 AM PSTNON-TSTM WND GST 622 E Mountain Center, CAMESONET STATION SE375 KEEN RIDGE (SCE).
Feb 11, 5:40 AM PSTNON-TSTM WND GST 645 Sw Devore, CAMESONET STATION SE157 LYTLE CREEK RD (SCE).
Feb 11, 6:00 AM PSTNON-TSTM WND GST 674 N Moreno Valley, CAMESONET STATION SE268 N MORENO VALLEY (SCE).
Feb 11, 6:22 AM PSTNON-TSTM WND GST 687 N Camp Pendleton, CAMESONET STATION CSPC1 CASE SPRINGS.
Feb 11, 6:25 AM PSTNON-TSTM WND GST 571 S Mt Laguna, CAMESONET STATION HP019 MT. LAGUNA OBSERVATORY.
Feb 11, 6:30 AM PSTNON-TSTM WND GST 655 Ssw Crestline, CAMESONET STATION F0494 CSU SAN BERNARDINO.
Feb 11, 6:45 AM PSTNON-TSTM WND GST 644 Ene Riverside, CAMESONET STATION AV480 GRAND TERRACE.
Feb 11, 6:50 AM PSTNON-TSTM WND GST 556 Ne Mission Viejo, CAMESONET STATION SE098 TRABUCO CANYON 2 (SCE).
Feb 11, 6:51 AM PSTNON-TSTM WND GST 594 Ese Ontario, CAMESONET STATION EW7239 EASTVALE.
Feb 11, 7:10 AM PSTNON-TSTM WND GST 563 Sse Devore, CAMESONET STATION DVOC1 DEVORE.
Feb 11, 7:10 AM PSTNON-TSTM WND GST 602 Ese Devore, CAMESONET STATION SE153 MEYERS CANYON (SCE).
Feb 11, 7:22 AM PSTNON-TSTM WND GST 558 Ene San Clemente, CAMESONET STATION TLGC1 TALEGA RIDGE.
Feb 11, 7:37 AM PSTNON-TSTM WND GST 661 Ese Ontario, CAASOS STATION KONT ONTARIO AIRPORT.
Feb 11, 8:00 AM PSTNON-TSTM WND GST 571 Sw Crestline, CAMESONET STATION E3127 PAIVIKA RIDGE.
Feb 11, 8:00 AM PSTNON-TSTM WND GST 604 E Mountain Center, CAMESONET STATION SE376 APPLE CANYON (SCE).
Feb 11, 8:00 AM PSTNON-TSTM WND GST 693 Sw Crestline, CAMESONET STATION SE125 DEVIL CANYON (SCE).
Feb 11, 8:10 AM PSTNON-TSTM WND GST 604 Wsw Running Springs, CAMESONET STATION SE151 EAST FORK CITY CREEK (SCE).
Feb 11, 8:15 AM PSTNON-TSTM WND DMG3 Sse Rancho Cucamonga, CABIG RIGS OVERTURNED. ROAD CLOSED DUE TO INCIDENT. NE WINDS WITH GUSTS TO 40 MPH IN SURROUNDING AREA AT TIME OF INCIDENT.
Feb 11, 8:15 AM PSTNON-TSTM WND DMG3 Sse Rancho Cucamonga, CACORRECTS PREVIOUS NON-TSTM WND DMG REPORT 6 SEMIS OVERTURNED ON I-15 AND I-10 CONNECTOR - NORTHBOUND I-15 CLOSED AT CONNECTOR - WIND GUST 66 MPH AT ONT AIRPORT AT 737 AM. EASTVALE SITE GUSTS UP TO 59 MPH.
Feb 11, 8:15 AM PSTNON-TSTM WND DMG3 Sse Rancho Cucamonga, CACORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM 3 SSE RANCHO CUCAMONGA. BIG RIGS OVERTURNED ON I10 AND I15. ROAD CLOSED DUE TO INCIDENT. PEAK GUST OF 59 MPH.
Feb 11, 8:21 AM PSTNON-TSTM WND DMG4 Se Ontario, CABIG RIG WAS BLOWN OVER ON ITS SIDE. WIND AT TIME OF REPORT: ENE 23 MPH G46 MPH.
Feb 11, 8:21 AM PSTNON-TSTM WND DMG4 Se Ontario, CACORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM 4 SE ONTARIO. BIG RIG WAS BLOWN OVER ON ITS SIDE ON I-15 AND EASTBOUND HWY 60 CONNECTOR. CONNECTOR WAS CLOSED. CHP ISSUED SIG ALERT. PEAK GUST OF 59 MPH REPORTED AT EASTVALE AT 651 AM.
Feb 11, 8:21 AM PSTNON-TSTM WND DMG4 Se Ontario, CACORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM 4 SE ONTARIO. BIG RIG WAS BLOWN OVER ON ITS SIDE ON I15 AND HWY 60. PEAK GUST OF 59 MPH REPORTED.
Feb 11, 8:50 AM PSTNON-TSTM WND GST 576 Ene Mission Viejo, CAMESONET STATION SE135 DOVE CANYON (SCE).
Feb 11, 8:50 AM PSTNON-TSTM WND GST 623 Sw Devore, CAMESONET STATION SE156 LYTLE CREEK WASH (SCE).
Feb 11, 8:51 AM PSTNON-TSTM WND GST 608 Ene Orange, CAMESONET STATION FRCC1 FREMONT CANYON.
Feb 11, 9:15 AM PSTNON-TSTM WND DMG7 Se Ontario, CACORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM 7 SE ONTARIO. POWER LINES DOWN AND IN ROAD. NE WINDS WITH PEAK GUST OF 59 MPH.
Feb 11, 9:15 AM PSTNON-TSTM WND DMG7 Se Ontario, CAPOWER LINES DOWN AND IN ROAD. NE WINDS WITH GUSTS RANGE FROM 30-42 MPH AROUND TIME OF REPORT.
Feb 11, 9:16 AM PSTNON-TSTM WND GST 5510 Ne San Clemente, CAMESONET STATION HP024 UPPER TALEGA.
Feb 11, 9:16 AM PSTNON-TSTM WND GST 607 Ese Corona, CAMESONET STATION MHEC1 LAKE MATHEWS.
Feb 11, 10:38 AM PSTSNOW 41 Sw Mt Laguna, CASKYWARN SPOTTER REPORT NEAR MT LAGUNA.

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 12:00Z, 5.6 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 2020-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2020-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
617 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

903 
WWUS76 KSGX 101737
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
937 AM PST Mon Feb 10 2020

CAZ048-055>057-065-554-110145-
/O.UPG.KSGX.WI.Y.0005.000000T0000Z-200212T0000Z/
/O.NEW.KSGX.HW.W.0004.200210T1737Z-200211T2200Z/
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-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, 
Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, 
Wrightwood, Idyllwild-Pine Cove, Banning, Desert Hot Springs, 
Santa Ana, Anaheim, Garden Grove, Orange, Fullerton, 
and Mission Viejo
937 AM PST Mon Feb 10 2020

...HIGH WIND WARNING IN EFFECT UNTIL 2 PM PST TUESDAY...

* WHAT...North to northeast winds 25 to 45 mph with local gusts 
  to 75 mph.

* WHERE...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 and Orange County Inland Areas.

* WHEN...Until 2 PM PST Tuesday. Highest winds will be through
  noon today, then the winds will weaken somewhat before becoming
  much stronger again 2 AM through 9 AM Tuesday.

* 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.

&&

$$

Maxwell
4 follow-up statements
742 
WWUS76 KSGX 102110
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
110 PM PST Mon Feb 10 2020

CAZ048-055>057-065-554-110615-
/O.CON.KSGX.HW.W.0004.000000T0000Z-200211T2200Z/
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-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, 
Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, 
Wrightwood, Idyllwild-Pine Cove, Banning, Desert Hot Springs, 
Santa Ana, Anaheim, Garden Grove, Orange, Fullerton, 
and Mission Viejo
110 PM PST Mon Feb 10 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY...

* WHAT...North to northeast winds 25 to 45 mph with local gusts 
  to 75 mph.

* WHERE...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 and Orange County Inland Areas.

* WHEN...Until 2 PM PST Tuesday. Winds slowly weakening through 
  tonight before becoming much stronger again 2 AM through 9 AM 
  Tuesday.

* 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.

&&

$$

APR

For more information from the National Weather Service visit
http://weather.gov/sandiego
963 
WWUS76 KSGX 110542
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
942 PM PST Mon Feb 10 2020

CAZ048-055>057-065-554-111400-
/O.CON.KSGX.HW.W.0004.000000T0000Z-200211T2200Z/
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-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, 
Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, 
Wrightwood, Idyllwild-Pine Cove, Banning, Desert Hot Springs, 
Santa Ana, Anaheim, Garden Grove, Orange, Fullerton, 
and Mission Viejo
942 PM PST Mon Feb 10 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY...

* WHAT...North to northeast winds 25 to 45 mph with local gusts 
  to 75 mph.

* WHERE...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 and Orange County Inland Areas.

* WHEN...Until 2 PM PST Tuesday. Winds strengthening overnight,
  with the strongest winds from 2 AM through 9 AM Tuesday.

* 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.

&&

$$

Connolly

For more information from the National Weather Service visit
http://weather.gov/sandiego
567 
WWUS76 KSGX 111041
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
241 AM PST Tue Feb 11 2020

CAZ048-055>057-065-554-112200-
/O.CON.KSGX.HW.W.0004.000000T0000Z-200211T2200Z/
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-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, 
Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, 
Wrightwood, Idyllwild-Pine Cove, Banning, Desert Hot Springs, 
Santa Ana, Anaheim, Garden Grove, Orange, Fullerton, 
and Mission Viejo
241 AM PST Tue Feb 11 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...

* WHAT...North to northeast winds 20 to 35 mph, with gusts to 60
  mph. Local gusts to 70 mph. 

* WHERE...Orange, San Bernardino, and Riverside County Mountains.
  Inland Empire and San Gorgonio Pass. Strongest winds through
  canyons, and in the foothills to the south and west of the
  mountains ridges. 

* WHEN...Until 2 PM PST Tuesday. Winds peaking early Tuesday
  morning, and subsiding by the afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Power outages are possible. Travel will be difficult, especially
  for high profile vehicles travel on Interstates 15 and 215 
  below Cajon Pass, and Interstate 10 through San Gorgonio Pass. 

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.

&&

$$

Rodriguez

For more information from the National Weather Service visit
http://weather.gov/sandiego
042 
WWUS76 KSGX 112219
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
219 PM PST Tue Feb 11 2020

CAZ048-055>057-065-554-112330-
/O.EXP.KSGX.HW.W.0004.000000T0000Z-200211T2200Z/
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-
Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, 
Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, 
Wrightwood, Idyllwild-Pine Cove, Banning, Desert Hot Springs, 
Santa Ana, Anaheim, Garden Grove, Orange, Fullerton, 
and Mission Viejo
219 PM PST Tue Feb 11 2020

...HIGH WIND WARNING HAS EXPIRED...

Latest wind gusts have decreased this afternoon and will continue
to do so this evening per latest forecast guidance.

$$

APR

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

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.