Alert archive / California / Wind Advisories in 2015

Wind Advisory 9, NWS San Diego, CA

March 12, 20154 counties in California

NWS San Diego, CA issued this wind advisory at Mar 12, 2015, 2:27 PM PDT for 4 counties in California. It took effect at Mar 12, 2015, 8:00 PM PDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Mar 12, 2015, 2:27 PM PDT (21:27 UTC)
In effect from
Mar 12, 2015, 8:00 PM PDT
Expired
Mar 13, 2015, 2:00 PM PDT
In force
18 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 21:31 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, 9.5 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 12:00Z on 2015-03-12Temperature 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 2015-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2419 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
22 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.

661 
WWUS76 KSGX 122127
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
227 PM PDT THU MAR 12 2015

...WEAK TO MODERATE SANTA ANA WIND EVENT EXPECTED ON FRIDAY...

.HIGH PRESSURE DEVELOPING OVER THE PLATEAU WILL RESULT IN A WEAK
TO MODERATE SANTA ANA WIND EVENT ON FRIDAY. LOCALLY STRONG GUSTY
WINDS CAN BE EXPECTED IN MAINLY THE WIND PRONE AREAS...ESPECIALLY
TONIGHT INTO MIDDAY FRIDAY. 

CAZ048-050-055>058-065-554-130530-
/O.NEW.KSGX.WI.Y.0009.150313T0300Z-150314T0000Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-SAN GORGONIO PASS NEAR BANNING-
ORANGE COUNTY INLAND AREAS-
227 PM PDT THU MAR 12 2015

...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM PDT
FRIDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 5 PM PDT
FRIDAY. 

* WINDS...NORTHEAST WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH. LOCAL
  GUSTS OVER 60 MPH BELOW FAVORED PASSES AND CANYONS AND AREAS SUCH
  AS BELOW THE CAJON PASS...THE SANTA ANA MOUNTAINS...AND THE SAN
  DIEGO COUNTY MOUNTAINS.

* TIMING...STRONGEST WINDS THIS EVENING THROUGH MIDDAY
  FRIDAY...THEN WEAKENING FRIDAY AFTERNOON. 

* LOCATION...ALONG AND NEAR COASTAL MOUNTAIN SLOPES AND FOOTHILLS
  AND BELOW PASSES AND CANYONS. 

* IMPACTS...STRONG GUSTY WINDS WILL MAKE DRIVING
  HAZARDOUS...ESPECIALLY FOR HIGH PROFILE VEHICLES. WATCH FOR
  BROKEN TREE LIMBS AND STRONG CROSSWINDS AT TIMES. 

* OUTLOOK...WINDS WILL BE LIGHTER AND LESS WIDESPREAD FRIDAY
  EVENING INTO SATURDAY. 

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.

&&

$$

SMALL/PG
4 follow-up statements
067 
WWUS76 KSGX 130422
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
922 PM PDT THU MAR 12 2015

...WEAK TO MODERATE SANTA ANA WIND EVENT EXPECTED TONIGHT INTO FRIDAY...

.HIGH PRESSURE DEVELOPING OVER THE GREAT BASIN WILL RESULT IN A
WEAK TO MODERATE SANTA ANA WIND EVENT FRIDAY. LOCALLY STRONG
GUSTY WINDS CAN BE EXPECTED IN MAINLY THE WIND PRONE
AREAS...ESPECIALLY TONIGHT INTO EARLY FRIDAY AFTERNOON.

CAZ048-050-055>058-065-554-131030-
/O.CON.KSGX.WI.Y.0009.000000T0000Z-150314T0000Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-SAN GORGONIO PASS NEAR BANNING-
ORANGE COUNTY INLAND AREAS-
922 PM PDT THU MAR 12 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT FRIDAY...

* WINDS...NORTHEAST WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH. 
  LOCAL GUSTS OVER 60 MPH BELOW FAVORED PASSES AND CANYONS AND 
  AREAS SUCH AS BELOW THE CAJON PASS...THE SANTA ANA MOUNTAINS...
   AND THE SAN DIEGO COUNTY MOUNTAINS. 

* TIMING...STRONGEST WINDS TONIGHT THROUGH MIDDAY FRIDAY... THEN
  WEAKENING FRIDAY AFTERNOON.

* LOCATION...ALONG AND NEAR COASTAL MOUNTAIN SLOPES AND 
  FOOTHILLS AND BELOW PASSES AND CANYONS. 

* IMPACTS...STRONG GUSTY WINDS WILL MAKE DRIVING HAZARDOUS... 
  ESPECIALLY FOR HIGH PROFILE VEHICLES. WATCH FOR BROKEN TREE 
  LIMBS AND STRONG CROSSWINDS AT TIMES. 

* OUTLOOK...WINDS WILL BE LIGHTER AND LESS WIDESPREAD FRIDAY 
  EVENING INTO SATURDAY. 

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.

&&

$$
174 
WWUS76 KSGX 131051
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
351 AM PDT FRI MAR 13 2015

...GUSTY NORTHEAST WINDS NEAR THE COASTAL FOOTHILLS THROUGH THIS
MORNING...

.SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL BRING GUSTY
NORTHEAST WINDS NEAR THE COASTAL FOOTHILLS THROUGH THIS MORNING.

CAZ048-050-055>058-065-554-131900-
/O.EXT.KSGX.WI.Y.0009.000000T0000Z-150313T1900Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-SAN GORGONIO PASS NEAR BANNING-
ORANGE COUNTY INLAND AREAS-
351 AM PDT FRI MAR 13 2015

...WIND ADVISORY NOW IN EFFECT UNTIL NOON PDT TODAY...

* WINDS...AREAS OF NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 45
  MPH. 

* LOCATION...ALONG AND NEAR COASTAL MOUNTAIN SLOPES AND 
  FOOTHILLS AND BELOW PASSES AND CANYONS. 

* IMPACTS...STRONG GUSTY WINDS WILL MAKE DRIVING HAZARDOUS...
  ESPECIALLY FOR HIGH PROFILE VEHICLES. WATCH FOR BROKEN TREE
  LIMBS.

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.

&&

$$

FOR A DETAILED MAP OF THE
HAZARD:
WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=SGX

17
943 
WWUS76 KSGX 131901
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1201 PM PDT FRI MAR 13 2015

...GUSTY NORTHEAST WINDS NEAR THE COASTAL FOOTHILLS THROUGH EARLY 
THIS AFTERNOON...

.SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL BRING CONTINUE 
GUSTY NORTHEAST WINDS OVER THE MOUNTAINS AND COASTAL FOOTHILLS
THROUGH EARLY THIS AFTERNOON. WINDS WILL WEAKEN BY MID-AFTERNOON.

CAZ048-050-055>058-065-554-132100-
/O.EXT.KSGX.WI.Y.0009.000000T0000Z-150313T2100Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-SAN GORGONIO PASS NEAR BANNING-
ORANGE COUNTY INLAND AREAS-
1201 PM PDT FRI MAR 13 2015

...WIND ADVISORY NOW IN EFFECT UNTIL 2 PM PDT THIS AFTERNOON...

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

* LOCATION...ALONG AND NEAR COASTAL MOUNTAIN SLOPES AND 
  FOOTHILLS AND BELOW PASSES AND CANYONS. 

* IMPACTS...STRONG GUSTY WINDS WILL MAKE DRIVING HAZARDOUS... 
  ESPECIALLY FOR HIGH PROFILE VEHICLES. WATCH FOR BROKEN TREE 
  LIMBS. 

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.

&&

$$

MAXWELL
370 
WWUS76 KSGX 132058
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
158 PM PDT FRI MAR 13 2015

...NORTHEASTERLY WINDS TO GRADUALLY WEAKEN THIS AFTERNOON...

.THE OFFSHORE FLOW WILL WEAKEN THIS AFTERNOON...WITH WIND GUSTS
NEAR THE MOUNTAIN FOOTHILLS MOSTLY BELOW 40 MPH AFTER 300 PM.
LOCALLY GUSTY WINDS WILL CONTINUE THROUGH EARLY SATURDAY
MORNING...WITH MOSTLY LIGHT WINDS BY MIDDAY SATURDAY.

CAZ048-050-055>058-065-554-132200-
/O.EXP.KSGX.WI.Y.0009.000000T0000Z-150313T2100Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-SAN GORGONIO PASS NEAR BANNING-
ORANGE COUNTY INLAND AREAS-
158 PM PDT FRI MAR 13 2015

...WIND ADVISORY WILL EXPIRE AT 2 PM PDT THIS AFTERNOON...

LOCAL WIND GUSTS AROUND 40 MPH WILL OCCUR THROUGH 300 PM...THEN
GRADUALLY DIMINISH LATE THIS AFTERNOON THROUGH TONIGHT.

$$

MAXWELL

Nearby

Wind Advisories in California, 2015Every wind advisory in 2015

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.