Alert archive / California / High Wind Warnings in 2007

High Wind Warning 8, NWS San Diego, CA

April 12, 2007Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this high wind warning at Apr 12, 2007, 2:43 PM PDT for Riverside County, San Bernardino County, San Diego County, California. It was in force for 5 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
Apr 12, 2007, 2:43 PM PDT (21:43 UTC)
Expired
Apr 12, 2007, 7:19 PM PDT
In force
5 hr
Issued by
NWS San Diego, CA

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

The radar

The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 21:43 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
Apr 12, 2:56 PM PDTNON-TSTM WND GST 41Needles, CA
Apr 12, 4:51 PM PDTNON-TSTM WND GST 4117 W Sandy Valley, CA

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, 9.7 hours before the alert went out and 145 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 2007-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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 12:00Z on 2007-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.19395878Sfc1 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
44 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS76 KSGX 122143
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
243 PM PDT THU APR 12 2007

...HIGH WIND WARNING FOR THE MOUNTAINS THROUGH THIS EVENING...

...WIND ADVISORY FOR LOWER ELEVATIONS THIS EVENING...

.A STRONG LOW PRESSURE TROUGH WILL MOVE ACROSS SOUTHERN
CALIFORNIA TODAY...BRINGING VERY STRONG NORTHWEST WINDS...ESPECIALLY
TO THE MOUNTAINS AND DESERTS. THE STRONGEST WINDS WILL OCCUR THIS
AFTERNOON AND EVENING. THE WINDS WILL SUBSIDE LATER TONIGHT.

CAZ055-056-058-130400-
/O.UPG.KSGX.WI.Y.0016.000000T0000Z-070413T0400Z/
/O.NEW.KSGX.HW.W.0008.070412T2143Z-070413T0400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
243 PM PDT THU APR 12 2007

...HIGH WIND WARNING IN EFFECT UNTIL 9 PM PDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 9 PM PDT THIS EVENING. THE
WIND ADVISORY IS NO LONGER IN EFFECT. 

NORTHWEST WINDS 30 TO 40 MPH WITH GUSTS TO 70 MPH. 

BLOWING DUST AND SAND WILL REDUCE VISIBILITIES TO NEAR ZERO AT
TIMES. WATCH FOR BROKEN TREE LIMBS AND DOWNED POWER LINES. 

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.

$$

CAZ042-043-048-050-057-130400-
/O.EXA.KSGX.WI.Y.0016.000000T0000Z-070413T0400Z/
ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SANTA ANA MOUNTAINS AND FOOTHILLS-
243 PM PDT THU APR 12 2007

...WIND ADVISORY IN EFFECT UNTIL 9 PM PDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 9 PM PDT THIS EVENING. 

NORTHWEST WINDS 25 TO 35 MPH WITH GUSTS TO 50 MPH. ISOLATED
HIGHER GUSTS.

BLOWING DUST AND SAND WILL REDUCE VISIBILITIES TO NEAR ZERO AT
TIMES. WATCH FOR BROKEN TREE LIMBS AND DOWNED POWER LINE.

$$

CAZ060>062-130400-
/O.CON.KSGX.WI.Y.0016.000000T0000Z-070413T0400Z/
APPLE AND LUCERNE VALLEYS-COACHELLA VALLEY-
SAN DIEGO COUNTY DESERTS-
243 PM PDT THU APR 12 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING. 

NORTHWEST WINDS 30 TO 40 MPH WITH GUSTS TO 55 MPH. ISOLATED
HIGHER GUSTS.

BLOWING DUST AND SAND WILL REDUCE VISIBILITIES TO NEAR ZERO AT
TIMES IN THE DESERTS. WATCH FOR BROKEN TREE LIMBS AND DOWNED POWER
LINES. 

$$

DVA
1 follow-up statement
000 
WWUS76 KSGX 130219
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
719 PM PDT THU APR 12 2007


CAZ055-056-058-130330-
/O.CAN.KSGX.HW.W.0008.000000T0000Z-070413T0400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
719 PM PDT THU APR 12 2007

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE HIGH
WIND WARNING. 



$$

CAZ042-043-048-050-057-060>062-130330-
/O.CAN.KSGX.WI.Y.0016.000000T0000Z-070413T0400Z/
ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SANTA ANA MOUNTAINS AND FOOTHILLS-
APPLE AND LUCERNE VALLEYS-COACHELLA VALLEY-
SAN DIEGO COUNTY DESERTS-
719 PM PDT THU APR 12 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE WIND
ADVISORY. 



$$

Nearby

High Wind Warnings in California, 2007Every high wind warning in 2007

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.