Alert archive / California / Wind Advisories in 2011

Wind Advisory 36, NWS San Diego, CA

October 27, 20114 counties in California

NWS San Diego, CA issued this wind advisory at Oct 27, 2011, 1:18 AM PDT for 4 counties in California. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Oct 27, 2011, 1:18 AM PDT (08:18 UTC)
Expired
Oct 27, 2011, 11:00 AM PDT
In force
10 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 08:18 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, 8.3 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.

Skew-T log-pSkew-T log-p diagram, San Diego, CA at 00:00Z on 2011-10-27Temperature 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 00:00Z on 2011-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -57 square meters per square second.193958Sfc1 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
1283 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-57 m²/s²
0-3 km storm-relative helicity
-42 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.

204 
WWUS76 KSGX 270818
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
118 AM PDT THU OCT 27 2011

...WIND ADVISORY UNTIL 11 AM THIS MORNING FOR THE SAN BERNARDINO
COUNTY MOUNTAINS...THE INLAND EMPIRE...THE SANTA ANA MOUNTAINS AND
EASTERN ORANGE COUNTY...

.OFFSHORE FLOW WILL PRODUCE LOCAL WINDS OF 20 TO 30 MPH WITH GUSTS
REACHING 45 MPH THIS MORNING. THE OFFSHORE FLOW AND LOCAL WINDS WILL
DECREASE RAPIDLY BY MIDDAY.

CAZ042-048-055-057-271630-
/O.NEW.KSGX.WI.Y.0036.111027T0818Z-111027T1800Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN BERNARDINO COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
118 AM PDT THU OCT 27 2011

...WIND ADVISORY IN EFFECT UNTIL 11 AM PDT THIS MORNING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM PDT THIS MORNING. 

* TIMING: THROUGH 11 AM THIS MORNING.

* WINDS: LOCAL NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH.

* VISIBILITY: ISOLATED AREAS OF REDUCED VISIBILITY IN BLOWING DUST.

* IMPACTS: GUSTY WINDS WILL MAKE TRAVEL HAZARDOUS IN ISOLATED
  LOCATIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. WATCH FOR
  BROKEN TREE LIMBS AND DOWNED POWER LINES.

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.

&&

$$

MM
1 follow-up statement
873 
WWUS76 KSGX 271754
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1054 AM PDT THU OCT 27 2011

...WIND ADVISORY FOR THE SAN BERNARDINO COUNTY MOUNTAINS...THE
INLAND EMPIRE...THE SANTA ANA MOUNTAINS AND EASTERN ORANGE
COUNTY WILL EXPIRE AT 11 AM...

CAZ042-048-055-057-271900-
/O.EXP.KSGX.WI.Y.0036.000000T0000Z-111027T1800Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN BERNARDINO COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
1054 AM PDT THU OCT 27 2011

...WIND ADVISORY WILL EXPIRE AT 11 AM PDT THIS MORNING...

THE WINDS WILL CONTINUE TO DECREASE THROUGH EARLY AFTERNOON.

$$

MOEDE

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.