Alert archive / California / Wind Advisories in 2011

Wind Advisory 29, NWS San Diego, CA

May 18, 2011Riverside County, San Diego County, California

NWS San Diego, CA issued this wind advisory at May 18, 2011, 2:32 AM PDT for Riverside County, San Diego County, California. It took effect at May 18, 2011, 12:00 PM PDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
May 18, 2011, 2:32 AM PDT (09:32 UTC)
In effect from
May 18, 2011, 12:00 PM PDT
Expired
May 18, 2011, 8:00 PM PDT
In force
8 hr
Issued by
NWS San Diego, CA

Counties Riverside County, CA, San Diego County, CA

The radar

The San Diego radar (KNKX), 80 km from the middle of the area, began a volume at 09:34 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 00:00Z, 9.5 hours before the alert went out and 100 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 00:00Z on 2011-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 00:00Z on 2011-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
805 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
112 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.

393 
WWUS76 KSGX 180932
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
232 AM PDT WED MAY 18 2011

...GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS THIS AFTERNOON
AND EARLY EVENING...

.A LOW PRESSURE SYSTEM MOVING INLAND THROUGH THE WEST WILL BRING
STRONGER ONSHORE FLOW TODAY WITH STRONG GUSTY WEST WINDS IN THE
MOUNTAINS AND DESERTS FOR THIS AFTERNOON AND EARLY EVENING.

CAZ056-058-061-062-182100-
/O.NEW.KSGX.WI.Y.0029.110518T1900Z-110519T0300Z/
RIVERSIDE COUNTY MOUNTAINS-SAN DIEGO COUNTY MOUNTAINS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
232 AM PDT WED MAY 18 2011

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM PDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM PDT THIS
EVENING. 

* TIMING: THIS AFTERNOON AND EARLY EVENING.

* LOCATION: NEAR RIDGE TOPS AND ALONG DESERT MOUNTAIN SLOPES AND
  ADJACENT DESERT AREAS.

* WINDS: WEST WINDS INCREASING TO 25 TO 35 MPH WITH GUSTS TO 55 MPH.

* VISIBILITY: IN THE DESERTS...LOCALLY REDUCED IN BLOWING DUST AND
  BLOWING SAND.

* IMPACTS: THE WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY FOR
  MOTORISTS WITH HIGH PROFILE VEHICLES. WATCH FOR BROKEN TREE
  LIMBS AND DOWNED POWER LINES. IN THE DESERTS...AREAS OF BLOWING
  DUST AND SAND COULD LOCALLY REDUCE VISIBILITY AT TIMES.

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. WATCH FOR BROKEN TREE LIMBS
AND DOWNED POWER LINES. IN THE DESERTS...AREAS OF BLOWING DUST AND
SAND COULD LOCALLY REDUCE VISIBILITY AT TIMES.

&&

$$

CURRENT WIND GUST REPORTS ON THE WEB:
HTTP://WWW.WRH.NOAA.GOV/SGX/GMAP/INDEX.PHP

MAX DAILY WIND GUST REPORTS ON THE WEB:
HTTP://WWW.WRH.NOAA.GOV/SGX/KML/WIND.PHP?WFO=SGX

MARTIN
2 follow-up statements
182 
WWUS76 KSGX 182008
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
108 PM PDT WED MAY 18 2011

...GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS THIS AFTERNOON
AND EARLY EVENING...

.STRONG ONSHORE FLOW FROM A LOW PRESSURE SYSTEM MOVING THROUGH
SOUTHERN CALIFORNIA TODAY WILL PRODUCE STRONG GUSTY WEST WINDS IN
THE MOUNTAINS AND DESERTS THIS AFTERNOON AND EARLY EVENING.

CAZ056-058-061-062-190300-
/O.CON.KSGX.WI.Y.0029.000000T0000Z-110519T0300Z/
RIVERSIDE COUNTY MOUNTAINS-SAN DIEGO COUNTY MOUNTAINS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
108 PM PDT WED MAY 18 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING. 

* TIMING: THIS AFTERNOON AND EARLY EVENING.

* LOCATION: NEAR RIDGE TOPS AND ALONG DESERT MOUNTAIN SLOPES AND
  ADJACENT DESERT AREAS.

* WINDS: WEST WINDS INCREASING TO 25 TO 35 MPH WITH GUSTS TO 55
  MPH.

* VISIBILITY: IN THE DESERTS...LOCALLY REDUCED IN BLOWING DUST
  AND BLOWING SAND.

* IMPACTS: THE WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY FOR
  MOTORISTS WITH HIGH PROFILE VEHICLES. WATCH FOR BROKEN TREE
  LIMBS AND DOWNED POWER LINES. IN THE DESERTS...AREAS OF BLOWING
  DUST AND SAND COULD LOCALLY REDUCE VISIBILITY AT TIMES.

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. WATCH FOR BROKEN TREE LIMBS
AND DOWNED POWER LINES. IN THE DESERTS...AREAS OF BLOWING DUST
AND SAND COULD LOCALLY REDUCE VISIBILITY AT TIMES.

&&

$$

MM
355 
WWUS76 KSGX 190253
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
753 PM PDT WED MAY 18 2011

...WIND ADVISORY EXPIRES AT 8 PM...

CAZ056-058-061-062-190400-
/O.EXP.KSGX.WI.Y.0029.000000T0000Z-110519T0300Z/
RIVERSIDE COUNTY MOUNTAINS-SAN DIEGO COUNTY MOUNTAINS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
753 PM PDT WED MAY 18 2011

...WIND ADVISORY WILL EXPIRE AT 8 PM PDT THIS EVENING...

THE WIND ADVISORY WILL EXPIRE AT 8 PM PDT THIS EVENING. 

WINDS HAVE DECREASED BELOW ADVISORY LEVELS AND WILL CONTINUE TO
DIMINISH OVERNIGHT.

$$

MOEDE

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 9:03 PM PDTSmall Craft Advisory for WindsSGX26 hr
May 18, 1:46 AM PDTHigh Surf AdvisorySGX66 hr

Nearby

Wind Advisories in California, 2011Every wind advisory in 2011

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.