Alert archive / California / Wind Advisories in 2012

Wind Advisory 33, NWS San Diego, CA

May 4, 2012Riverside County, California

NWS San Diego, CA issued this wind advisory at May 4, 2012, 1:39 PM PDT for Riverside County, California. It took effect at May 4, 2012, 2:00 PM PDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
May 4, 2012, 1:39 PM PDT (20:39 UTC)
In effect from
May 4, 2012, 2:00 PM PDT
Expired
May 5, 2012, 3:00 AM PDT
In force
13 hr
Issued by
NWS San Diego, CA

County Riverside County, CA

The radar

The San Diego radar (KNKX), 134 km from the middle of the area, began a volume at 20:41 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, 8.7 hours before the alert went out and 154 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 2012-05-04Temperature 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 2012-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
588 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
-74 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.

100 
WWUS76 KSGX 042039
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
139 PM PDT FRI MAY 4 2012

...WIND ADVISORY FOR COACHELLA VALLEY THROUGH LATE TONIGHT...MAINLY
TO THE EAST OF BANNING PASS...

.PRESSURE GRADIENT INCREASING THROUGH LATE TONIGHT AS ANOTHER TROUGH
MOVES INLAND TO THE NORTH. ALREADY GETTING GUSTS OVER 45 MPH AND
EXPECT ANOTHER 10 MPH INCREASE DURING THE EVENING HOURS. MAIN
IMPACT AREA...EAST OF BANNING PASS AND ALONG DILLON ROAD BETWEEN
INDIO HILLS AND WEST SLOPES OF THE LITTLE SAN BERNARDINO
MOUNTAINS.

CAZ061-050445-
/O.NEW.KSGX.WI.Y.0033.120504T2100Z-120505T1000Z/
COACHELLA VALLEY-
139 PM PDT FRI MAY 4 2012

...WIND ADVISORY IN EFFECT UNTIL 3 AM PDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 3 AM PDT SATURDAY. 

* WINDS...WEST TO NORTHWEST 30 MPH WITH GUSTS TO 55 MPH.

* TIMING...2 PM THIS AFTERNOON THROUGH 3 AM SATURDAY MORNING.

* LOCATION...EAST OF THE BANNING PASS AND EAST OF THE INTERSTATE
  10 CORRIDOR...ALONG DILLON ROAD BETWEEN INDIO HILLS AND WEST
  SLOPES OF THE LITTLE SAN BERNARDINO MOUNTAINS.

* VISIBILITY...LESS THAN A MILE IN AREAS OF BLOWING DUST AND SAND.

* IMPACTS...MOTORISTS OPERATING HIGH PROFILE VEHICLES WILL
  ENCOUNTER DIFFICULT DRIVING CONDITIONS. 

* OUTLOOK...WINDS DIMINISHING LATE TONIGHT. 

* REPORTS...AT 1 PM...

  WHITE WATER RAWS...WEST NORTHWEST 35 MPH GUSTING 46 MPH.
  SKY VALLEY...WEST NORTHWEST 15 MPH GUSTING 30 MPH.
  EDOM HILL...WEST NORTHWEST 16 MPH GUSTING 25 MPH.

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.

&&

$$

BALFOUR
2 follow-up statements
661 
WWUS76 KSGX 050445
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
945 PM PDT FRI MAY 4 2012

...WIND ADVISORY FOR COACHELLA VALLEY THROUGH 3 AM... 

.GUSTY WINDS CONTINUING TONIGHT BEFORE DECREASING LATE WITH GUSTS
OVER 45 MPH AT TIMES. THE WINDS WILL SUBSIDE LATE TONIGHT. 

CAZ061-051000-
/O.CON.KSGX.WI.Y.0033.000000T0000Z-120505T1000Z/
COACHELLA VALLEY-
945 PM PDT FRI MAY 4 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT SATURDAY...

* WINDS...WEST TO NORTHWEST 20 TO 30 MPH WITH GUSTS TO 55 MPH.

* TIMING...THROUGH 3 AM SATURDAY.

* LOCATION...THE BANNING PASS...AREAS EAST OF THE INTERSTATE 10
  CORRIDOR...ALONG DILLON ROAD BETWEEN INDIO HILLS AND WEST SLOPES
  OF THE LITTLE SAN BERNARDINO MOUNTAINS.

* VISIBILITY...LESS THAN A MILE IN AREAS OF BLOWING DUST AND 
  SAND.

* IMPACTS...MOTORISTS OPERATING HIGH PROFILE VEHICLES WILL 
  ENCOUNTER DIFFICULT DRIVING CONDITIONS. 

* OUTLOOK...WINDS DIMINISHING LATE TONIGHT.

* PEAK WIND REPORTS...WHITE WATER 53 MPH AT 4 PM. SKY VALLEY...61
  MPH AT 4 PM.

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.

&&

$$

MOEDE
096 
WWUS76 KSGX 051015
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
315 AM PDT SAT MAY 5 2012

...WIND ADVISORY HAS EXPIRED...

.ONSHORE FLOW WILL WEAKEN TODAY WITH DECREASING WEST TO
NORTHWEST WINDS TODAY.

CAZ061-051115-
/O.EXP.KSGX.WI.Y.0033.000000T0000Z-120505T1000Z/
COACHELLA VALLEY-
315 AM PDT SAT MAY 5 2012

...WIND ADVISORY HAS EXPIRED...

LOCALLY GUSTY NORTHWEST WINDS BELOW THE BANNING PASS AND FOR AREAS
NORTH AND EAST OF INTERSTATE 10 WITH GUSTS TO AROUND 45 MPH BELOW
THE BANNING PASS. WINDS WILL GRADUALLY SUBSIDE THIS MORNING.

$$

17

Nearby

Wind Advisories in California, 2012Every wind advisory in 2012

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.