Alert archive / California / Wind Advisories in 2012

Wind Advisory 31, NWS San Diego, CA

May 2, 2012Riverside County, California

NWS San Diego, CA issued this wind advisory at May 2, 2012, 7:08 AM PDT for Riverside County, California. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
May 2, 2012, 7:08 AM PDT (14:08 UTC)
Expired
May 3, 2012, 4:00 AM PDT
In force
21 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 14:12 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

Yuma Intl Airpor, AZ (KYUM), launched 12:00Z, 2.1 hours before the alert went out and 178 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, Yuma Intl Airpor, AZ at 12:00Z on 2012-05-02Temperature 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, Yuma Intl Airpor, AZ at 12:00Z on 2012-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
2195 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
99 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.

285 
WWUS76 KSGX 021408
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
708 AM PDT WED MAY 2 2012

...WIND ADVISORY FOR COACHELLA VALLEY TODAY AND TONIGHT FOR
STRONGER THAN NORMAL WEST WINDS...MAINLY BELOW BANNING PASS...

.THE COMBINATION OF A STRONG WEST TO EAST PRESSURE GRADIENT...
AROUND 11 MB...ACROSS SOUTHERN CALIFORNIA...AND A DEEP MARINE
LAYER...AROUND 5000 FEET...WEST OF THE SAN JACINTO MOUNTAINS...
WILL CONTINUE STRONGER THAN NORMAL WINDS FOR ANOTHER 24 HOURS.
WIND GUSTS OF 48 TO 58 MPH ARE OCCURRING AT THIS TIME. .

CAZ061-022215-
/O.NEW.KSGX.WI.Y.0031.120502T1408Z-120503T1100Z/
COACHELLA VALLEY-
708 AM PDT WED MAY 2 2012

...WIND ADVISORY IN EFFECT UNTIL 4 AM PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 4 AM PDT THURSDAY. 

* WINDS...WEST TO NORTHWEST 25 TO 35 MPH WITH FREQUENT GUSTS 55
  MPH OR HIGHER. 

* TIMING...THROUGH 4 AM THURSDAY MORNING.

* LOCATION...THROUGH AND BELOW BANNING PASS...AND BETWEEN
  INTERSTATE 10 AND THE LITTLE SAN BERNARDINO MOUNTAINS.

* VISIBILITY...NEAR ZERO IN AREAS OF BLOWING DUST AND SAND.

* IMPACTS...MOTORISTS OPERATING HIGH PROFILE VEHICLES WILL
  ENCOUNTER DIFFICULT DRIVING CONDITIONS. BLOWING SAND WILL GLAZE
  WINDSHIELDS. TRAFFIC SIGNS AND BILLBOARDS MAY BE DAMAGED.
  BLOWING DEBRIS MAY CAUSE ADDITIONAL DAMAGE OR INJURIES.

* OUTLOOK...WINDS DIMINISHING FRIDAY.

* REPORTS...
  SKY VALLEY...PEAK GUST 73 MPH AT 1 AM PDT...GUSTING 51 MPH 
  AT 6 AM PDT. 

  WHITE WATER RAWS...PEAK GUST 65 MPH AT 3 AM PDT...GUSTING 
  56 MPH AT 6 AM PDT.

  EDOM HILL...PEAK GUST 48 MPH AT 5 AM PDT...GUSTING
  47 MPH AT 6AM PDT.

  DESERT HOT SPRINGS...PEAK GUST 47 MPH AT 1 AM PDT...GUSTING
  37 MPH AT 6 AM PDT. 

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
3 follow-up statements
774 
WWUS76 KSGX 022009
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
109 PM PDT WED MAY 2 2012

...WIND ADVISORY FOR COACHELLA VALLEY CONTINUES THROUGH EARLY
THURSDAY MORNING FOR STRONGER THAN NORMAL WEST WINDS...MAINLY
BELOW BANNING PASS...

.THE COMBINATION OF A STRONG WEST TO EAST PRESSURE GRADIENT...
AROUND 11 MB...ACROSS SOUTHERN CALIFORNIA...AND A DEEP MARINE
LAYER...AROUND 5000 FEET...WEST OF THE SAN JACINTO MOUNTAINS...
WILL CONTINUE STRONGER THAN NORMAL WINDS INTO EARLY FRIDAY MORNING
WIND GUSTS TEMPORARILY DIMINISHED DURING THE MORNING HOURS 
BUT ARE FORECAST TO INCREASE AGAIN THROUGH THE REMAINDER OF 
THE AFTERNOON AND THIS EVENING. 

CAZ061-030415-
/O.CON.KSGX.WI.Y.0031.000000T0000Z-120503T1100Z/
COACHELLA VALLEY-
109 PM PDT WED MAY 2 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PDT THURSDAY...

* WINDS...WEST TO NORTHWEST 25 TO 35 MPH WITH GUSTS 55 MPH OR
  HIGHER.

* TIMING...THROUGH 4 AM THURSDAY MORNING.

* LOCATION...THROUGH AND BELOW BANNING PASS...AND BETWEEN 
  INTERSTATE 10 AND THE LITTLE SAN BERNARDINO MOUNTAINS. 

* VISIBILITY...NEAR ZERO IN AREAS OF BLOWING DUST AND SAND.

* IMPACTS...MOTORISTS OPERATING HIGH PROFILE VEHICLES WILL 
  ENCOUNTER DIFFICULT DRIVING CONDITIONS. BLOWING SAND WILL 
  GLAZE WINDSHIELDS. TRAFFIC SIGNS AND BILLBOARDS MAY BE 
  DAMAGED. BLOWING DEBRIS MAY CAUSE ADDITIONAL DAMAGE OR 
  INJURIES. 

* OUTLOOK...WINDS DIMINISHING FRIDAY.

* REPORTS... 
  SKY VALLEY...SUSTAINED 43 MPH WITH GUSTS 56 MPH AT 1143 AM PDT.
  WHITE WATER RAWS...SUSTAINED 35 MPH WITH GUSTS 53 MPH AT 1250 PM PDT. 
  EDOM HILL...SUSTAINED 31 MPH WITH GUSTS 41 MPH AT 1150 AM PDT. 
  DESERT HOT SPRINGS...GUSTING 32 MPH AT 1145 AM PDT.

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.

&&

$$
832 
WWUS76 KSGX 030206
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
706 PM PDT WED MAY 2 2012

...WIND ADVISORY FOR THE COACHELLA VALLEY CONTINUES THROUGH EARLY
THURSDAY MORNING BELOW THE BANNING PASS...

.A LARGE SURFACE PRESSURE GRADIENT WILL MAINTAIN STRONG AND GUSTY
ONSHORE WINDS...MAINLY THROUGH AND BELOW THE BANNING PASS AND EAST
OF THE I-10 CORRIDOR INTO EARLY THURSDAY MORNING. THE WINDS WILL
WEAKEN THURSDAY MORNING...BUT THEN INCREASE AGAIN DURING THE
AFTERNOON. 

CAZ061-031100-
/O.CON.KSGX.WI.Y.0031.000000T0000Z-120503T1100Z/
COACHELLA VALLEY-
706 PM PDT WED MAY 2 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PDT THURSDAY...

* WINDS...WEST TO NORTHWEST 25 TO 35 MPH WITH GUSTS 55 MPH OR 
  HIGHER. 

* TIMING...THROUGH 4 AM PDT THURSDAY MORNING.

* LOCATION...THROUGH AND BELOW BANNING PASS...AND BETWEEN 
  INTERSTATE 10 AND THE LITTLE SAN BERNARDINO MOUNTAINS. 

* VISIBILITY...LOCALLY NEAR ZERO IN AREAS OF BLOWING DUST AND
  SAND.

* IMPACTS...MOTORISTS OPERATING HIGH PROFILE VEHICLES WILL
  ENCOUNTER DIFFICULT DRIVING CONDITIONS. VISIBILITY RESTRICTIONS
  DUE TO BLOWING DUST AND SAND MAY MAKE TRAVEL HAZARDOUS AT TIMES.
  TRAFFIC SIGNS AND BILLBOARDS MAY BE DAMAGED. BLOWING DEBRIS MAY
  CREATE A HAZARD TO MOTORISTS.

* OUTLOOK...WINDS SUBSIDING TEMPORARILY THURSDAY MORNING...BUT
  LIKELY STRENGTHENING AGAIN LATE IN THE AFTERNOON THROUGH THURSDAY
  EVENING.

* REPORTS...MAXIMUM WIND GUSTS TODAY: SKY VALLEY...73 MPH BETWEEN
  1 AND 2 AM PDT. WHITE WATER...65 MPH BETWEEN 2 AND 3 AM PDT.
  EDOM HILL...50 MPH BETWEEN 4 AND 5 AM PDT. DESERT HOT SPRINGS...
  47 MPH BETWEEN MIDNIGHT AND 1 AM PDT.

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.

&&

$$

JAD
822 
WWUS76 KSGX 031045
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
345 AM PDT THU MAY 3 2012

CAZ061-031145-
/O.EXP.KSGX.WI.Y.0031.000000T0000Z-120503T1100Z/
COACHELLA VALLEY-
345 AM PDT THU MAY 3 2012

...WIND ADVISORY WILL EXPIRE AT 4 AM PDT EARLY THIS MORNING...

WINDS HAVE DECREASED BELOW ADVISORY CRITERIA AND THE WIND
ADVISORY WILL BE ALLOWED TO EXPIRE AT 4 AM. WEST WINDS WILL
INCREASE AGAIN THIS AFTERNOON AND EVENING...MAINLY ALONG AND
NORTH OF INTERSTATE 10 IN THE COACHELLA VALLEY.

$$

SS

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.