Alert archive / California / Wind Advisories in 2014

Wind Advisory 46, NWS San Diego, CA

September 18, 2014Riverside County, California

NWS San Diego, CA issued this wind advisory at Sep 18, 2014, 12:52 PM PDT for Riverside County, California. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Sep 18, 2014, 12:52 PM PDT (19:52 UTC)
Expired
Sep 19, 2014, 6:00 AM PDT
In force
17 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 19:52 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, 7.9 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 2014-09-18Temperature 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 2014-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
1076 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
0 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.

656 
WWUS76 KSGX 181952
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1252 PM PDT THU SEP 18 2014

...STRONG AND GUSTY WINDS IN THE COACHELLA VALLEY THROUGH 
EARLY FRIDAY MORNING...

.STRONG ONSHORE FLOW WILL CONTINUE TO BRING STRONG WESTERLY WINDS
TO THE COACHELLA VALLEY THROUGH EARLY FRIDAY MORNING...MAINLY
THROUGH AND BELOW THE SAN GORGONIO PASS AND NORTH OF INTERSTATE
10. WINDS WILL WEAKEN BY LATE FRIDAY MORNING.

CAZ061-190500-
/O.NEW.KSGX.WI.Y.0046.140918T1952Z-140919T1300Z/
COACHELLA VALLEY-
1252 PM PDT THU SEP 18 2014

...WIND ADVISORY IN EFFECT UNTIL 6 AM PDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM PDT FRIDAY. 

* WINDS...WEST WINDS 25 TO 35 MPH WITH GUSTS OF 45 TO 55 MPH.

* TIMING...THROUGH EARLY FRIDAY MORNING.

* LOCATION...THROUGH AND BELOW THE SAN GORGONIO PASS AND NORTH OF
  INTERSTATE 10 IN THE COACHELLA VALLEY.

* VISIBILITY...LOCALLY REDUCED TO 3 MILES OR LESS IN BLOWING DUST.

* IMPACTS...THE WINDS WILL MAKE FOR DIFFICULT DRIVING
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. WATCH FOR
  BROKEN TREE LIMBS.

* OUTLOOK...WINDS WILL DIMINISH BY LATE FRIDAY MORNING AS ONSHORE
  FLOW WEAKENS.

* REPORTS...53 MPH WIND GUST AT 1150 AM AT WHITEWATER RAWS.

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.

&&

$$

HARRISON
2 follow-up statements
280 
WWUS76 KSGX 190447
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
947 PM PDT THU SEP 18 2014

...STRONG AND GUSTY WINDS IN THE COACHELLA VALLEY THROUGH EARLY
FRIDAY MORNING...

.STRONG ONSHORE FLOW WILL CONTINUE TO BRING STRONG WESTERLY WINDS
TO THE COACHELLA VALLEY THROUGH EARLY FRIDAY MORNING...MAINLY
THROUGH AND BELOW THE SAN GORGONIO PASS AND NORTH OF INTERSTATE
10. WINDS WILL WEAKEN BY LATE FRIDAY MORNING.

CAZ061-191300-
/O.CON.KSGX.WI.Y.0046.000000T0000Z-140919T1300Z/
COACHELLA VALLEY-
947 PM PDT THU SEP 18 2014

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT FRIDAY...

* WINDS...WEST WINDS 25 TO 35 MPH WITH GUSTS OF 45 TO 55 MPH.

* TIMING...THROUGH EARLY FRIDAY MORNING.

* LOCATION...THROUGH AND BELOW THE SAN GORGONIO PASS AND NORTH 
  OF INTERSTATE 10 IN THE COACHELLA VALLEY. 

* VISIBILITY...LOCALLY REDUCED TO 3 MILES OR LESS IN BLOWING 
  DUST.

* IMPACTS...THE WINDS WILL MAKE FOR DIFFICULT DRIVING 
  CONDITIONS...ESPECIALLY FOR HIGH PROFILE VEHICLES. WATCH FOR 
  BROKEN TREE LIMBS. 

* OUTLOOK...WINDS WILL DIMINISH BY LATE FRIDAY MORNING AS 
  ONSHORE FLOW WEAKENS. 

* REPORTS...55 MPH WIND GUST AT 7 PM AT EDOM HILL.

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
832 
WWUS76 KSGX 191259
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
559 AM PDT FRI SEP 19 2014

CAZ061-191400-
/O.EXP.KSGX.WI.Y.0046.000000T0000Z-140919T1300Z/
COACHELLA VALLEY-
559 AM PDT FRI SEP 19 2014

...WIND ADVISORY WILL EXPIRE AT 6 AM PDT EARLY THIS MORNING...

WINDS HAVE WEAKENED IN THE COACHELLA VALLEY...AND SO THE WIND
ADVISORY WILL BE ALLOWED TO EXPIRE.

$$

HARRISON

Nearby

Wind Advisories in California, 2014Every wind advisory in 2014

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.