Alert archive / California / High Wind Warnings in 2009
High Wind Warning 9, NWS San Diego, CA
NWS San Diego, CA issued this high wind warning at Nov 23, 2009, 9:56 PM PST for 4 counties in California. It was in force for 5 hr. 5 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
- Nov 23, 2009, 9:56 PM PST (05:56 UTC)
- Expired
- Nov 24, 2009, 3:03 AM PST
- In force
- 5 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 05:56 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 23, 11:23 PM PST | NON-TSTM WND DMG | 5 Ene Irvine, CA | TREE BLOWN DOWN ONTO HIGHWAY 133 JUST SOUTH OF PORTOLA PARKWAY |
| Nov 23, 11:30 PM PST | NON-TSTM WND GST 74 | 2 Nne Fremont Canyon, CA | PEAK GUST MEASURED AT 2330 PST. GUSTS OVER 58 MPH BETWEEN 2131 PST AND 22/0130 PST. |
| Nov 24, 1:23 AM PST | NON-TSTM WND GST 66 | 5 Nw San Bernardino, CA | PALM AVENUE ELEMENTRAY SCHOOL MEASURED A PEAK GUST OF 66.4 MPH FROM THE EASTNORTHEAST AT 0123 PST. |
| Nov 24, 1:31 AM PST | NON-TSTM WND GST 52 | Rancho Cucamonga, CA | PEAK WIND FROM WEST NORTHWEST OF 52 MPH |
| Nov 24, 2:04 AM PST | NON-TSTM WND DMG | 5 Nw San Bernardino, CA | CAR BLOWN OFF ROAD |
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, 5.9 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3195 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- -46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS76 KSGX 240556 NPWSGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 956 PM PST MON NOV 23 2009 CAZ048-057-241400- /O.UPG.KSGX.WI.Y.0026.000000T0000Z-091124T2200Z/ /O.NEW.KSGX.HW.W.0009.091124T0600Z-091124T2200Z/ SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SANTA ANA MOUNTAINS AND FOOTHILLS- 956 PM PST MON NOV 23 2009 ...HIGH WIND WARNING IN EFFECT UNTIL 2 PM PST TUESDAY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 2 PM PST TUESDAY. THE WIND ADVISORY IS NO LONGER IN EFFECT. SURFACE HIGH PRESSURE OVER THE INTERIOR WILL CAUSE LOCAL STRONG GUSTY NORTHEAST WINDS. THE STRONGEST WINDS WILL BE BELOW THE CAJON PASS AND THROUGH THE SANTA ANA MOUNTAIN CANYONS WHERE GUSTS WILL BE NEAR 70 MPH AT TIMES. THE WINDS WILL DECREASE TUESDAY AFTERNOON. RECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. WATCH FOR BROKEN TREE LIMBS AND DOWNED POWER LINES. && $$ ATKIN
1 follow-up statement
000 WWUS76 KSGX 241103 NPWSGX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 303 AM PST TUE NOV 24 2009 CAZ048-057-242000- /O.CAN.KSGX.HW.W.0009.000000T0000Z-091124T2200Z/ /O.NEW.KSGX.WI.Y.0027.091124T1103Z-091124T2000Z/ SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SANTA ANA MOUNTAINS AND FOOTHILLS- 303 AM PST TUE NOV 24 2009 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TODAY... ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL NOON PST TODAY. THE HIGH WIND WARNING HAS BEEN CANCELLED. LOCALLY GUSTY NORTHEAST WINDS TO 50 MPH WILL OCCUR THIS MORNING IN THE INLAND EMPIRE ALONG THE 15 AND 215 FREEWAYS BETWEEN DEVORE AND THE 60 FREEWAY...AND ALSO IN THE PASSES AND CANYONS OF THE SANTA ANA MOUNTAINS AND FOOTHILLS. THE GUSTY WINDS WILL DECREASE TO BELOW 35 MPH THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ SCV
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 9:31 PM PST | Wind Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 25 min |
| Nov 24, 3:03 AM PST | Wind Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 9 hr |
| Nov 24, 10:01 AM PST | Red Flag Warning | SGX | Orange, Riverside, San Diego | 48 hr |
Nearby
High Wind Warnings in California, 2009Every high wind warning in 2009
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.