Alert archive / California / High Wind Watches in 2014

High Wind Watch 13, NWS San Diego, CA

December 21, 20144 counties in California

NWS San Diego, CA issued this high wind watch at Dec 21, 2014, 1:55 PM PST for 4 counties in California. It took effect at Dec 22, 2014, 10:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 21, 2014, 1:55 PM PST (21:55 UTC)
In effect from
Dec 22, 2014, 10:00 PM PST
Expired
Dec 22, 2014, 3:23 AM PST
In force
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 21:53 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, 9.9 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 2014-12-21Temperature 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 2014-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
775 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
43 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.

278 
WWUS76 KSGX 212155
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
155 PM PST SUN DEC 21 2014

...STRONG GUSTY SANTA WINDS MAY DEVELOP MONDAY NIGHT AND FOR
TUESDAY FOR THE COASTAL SLOPES OF THE MOUNTAINS AND FOR THE INLAND
VALLEYS...

.OFFSHORE WINDS WILL GRADUALLY DEVELOP OVER SOUTHERN CALIFORNIA
TONIGHT AND MONDAY AS HIGH PRESSURE BUILDS INTO THE GREAT BASIN.
AS THIS SURFACE-BASED HIGH PRESSURE STRENGTHENS MONDAY NIGHT...A
PERIOD OF MODERATE TO LOCALLY STRONG GUSTY SANTA ANA WINDS WILL DEVELOP.
THE STRONGEST WINDS WILL BE LATE MONDAY NIGHT AND TUESDAY MORNING.

CAZ042-048-050-055>058-061-220600-
/O.NEW.KSGX.HW.A.0013.141223T0600Z-141223T2200Z/
ORANGE COUNTY COASTAL AREAS-
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-COACHELLA VALLEY-
155 PM PST SUN DEC 21 2014

...HIGH WIND WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON. 

* WINDS...NORTH TO NORTHEAST WINDS 20 TO 30 MPH...WITH GUSTS TO 60
  MPH. LOCAL GUSTS TO 75 MPH.

* LOCATION...STRONGEST GUSTS BELOW THE CAJON PASS...IN THE SANTA
  MOUNTAINS AND FOOTHILLS...BELOW THE BANNING PASS....AND BELOW CUYAMACA.

* TIMING...THE STRONGEST WINDS WILL DEVELOP LATE MONDAY NIGHT AND TUESDAY
  MORNING. A SECONDARY...BUT WEAKER PERIOD OF WINDS WILL OCCUR
  TUESDAY NIGHT AND WEDNESDAY MORNING.

* IMPACTS...BROKEN TREE LIMBS...DEBRIS ON ROADWAYS...AND DANGEROUS
  TRAVEL CONDITIONS FOR HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

PALMER
2 follow-up statements
662 
WWUS76 KSGX 220436
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
836 PM PST SUN DEC 21 2014

...STRONG SANTA WINDS MAY DEVELOP MONDAY NIGHT INTO TUESDAY ALONG 
THE COASTAL SLOPES OF THE MOUNTAINS AND ADJACENT VALLEYS...

.OFFSHORE WINDS WILL GRADUALLY DEVELOP OVER SOUTHERN CALIFORNIA
TONIGHT AND MONDAY AS HIGH PRESSURE BUILDS INTO THE GREAT BASIN.
AS THIS HIGH PRESSURE AREA STRENGTHENS MONDAY NIGHT...A PERIOD OF
MODERATE TO LOCALLY STRONG SANTA ANA WINDS WILL DEVELOP. THE
STRONGEST WINDS ARE EXPECTED LATE MONDAY NIGHT AND TUESDAY MORNING.

CAZ042-048-050-055>058-061-221300-
/O.CON.KSGX.HW.A.0013.141223T0600Z-141223T2200Z/
ORANGE COUNTY COASTAL AREAS-
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-COACHELLA VALLEY-
836 PM PST SUN DEC 21 2014

...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON...

A HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON. 

* WINDS...NORTH TO NORTHEAST 20 TO 35 MPH...WITH GUSTS TO 60 MPH.
  ISOLATED GUSTS TO NEAR 75 MPH POSSIBLE.

* LOCATION...STRONGEST GUSTS BELOW THE CAJON PASS AND IN THE SANTA
  ANA MOUNTAINS AND FOOTHILLS. OTHER AREAS THAT MAY EXPERIENCE
  STRONG WIND GUSTS ARE BELOW THE BANNING PASS...AND BELOW WIND
  PRONE CANYONS OF THE CUYAMACA MOUNTAINS IN SAN DIEGO COUNTY.

* TIMING...THE STRONGEST WINDS WILL DEVELOP LATE MONDAY NIGHT AND
  TUESDAY MORNING. A SECONDARY...BUT WEAKER PERIOD OF WINDS WILL
  OCCUR TUESDAY EVENING THROUGH WEDNESDAY MORNING.

* IMPACTS...BROKEN TREE LIMBS...DEBRIS ON ROADWAYS...AND DANGEROUS
  TRAVEL CONDITIONS FOR HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

JAD
859 
WWUS76 KSGX 221123
NPWSGX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
323 AM PST MON DEC 22 2014

...GUSTY SANTA ANA WINDS FOR LATE TONIGHT THROUGH EARLY WEDNESDAY
FOR THE COASTAL MOUNTAIN SLOPES AND ADJACENT FOOTHILL AREAS...

.GUSTY NORTHEAST TO EAST WINDS WILL DEVELOP THIS EVENING AND
STRENGTHEN LATE TONIGHT THROUGH TUESDAY MORNING. WINDS WILL
GRADUALLY WEAKEN FOR TUESDAY AFTERNOON THROUGH EARLY WEDNESDAY
MORNING.

CAZ061-221230-
/O.CAN.KSGX.HW.A.0013.141223T0600Z-141223T2200Z/
COACHELLA VALLEY-
323 AM PST MON DEC 22 2014

...HIGH WIND WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE HIGH
WIND WATCH. 

AREAS OF GUSTY NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH
FOR TONIGHT INTO TUESDAY MORNING...MAINLY NORTH AND EAST OF
INTERSTATE 10.

$$

CAZ042-048-050-055>058-222230-
/O.UPG.KSGX.HW.A.0013.141223T0600Z-141223T2200Z/
/O.NEW.KSGX.WI.Y.0055.141223T0600Z-141224T1600Z/
ORANGE COUNTY COASTAL AREAS-
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-
323 AM PST MON DEC 22 2014

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 8 AM PST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 8 AM PST
WEDNESDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* WINDS...AREAS OF NORTHEAST TO EAST WINDS STRENGTHENING TO 20 TO
  30 MPH LATE TONIGHT THROUGH TUESDAY MORNING WITH GUSTS TO 50
  MPH. ISOLATED GUSTS TO 60 MPH. WINDS GRADUALLY SUBSIDING FOR
  TUESDAY AFTERNOON THROUGH EARLY WEDNESDAY MORNING.

* LOCATION...ALONG COASTAL MOUNTAIN SLOPES AND ADJACENT FOOTHILL
  AREAS. STRONGEST WINDS FOR THE COASTAL FOOTHILLS OF THE SANTA
  ANA MOUNTAINS AND THE COASTAL SLOPES OF THE SAN DIEGO COUNTY
  MOUNTAINS.

* TIMING...THE WINDS WILL STRENGTHEN BEGINNING THIS EVENING WITH
  STRONGEST WINDS FOR LATE TONIGHT INTO TUESDAY MORNING. WINDS
  GRADUALLY SUBSIDING FOR TUESDAY AFTERNOON THROUGH EARLY
  WEDNESDAY.

* IMPACTS...BROKEN TREE LIMBS...DEBRIS ON ROADWAYS...AND DIFFICULT
  TRAVEL CONDITIONS FOR HIGH PROFILE VEHICLES.

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.

&&

$$

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

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

17

Nearby

High Wind Watches in California, 2014Every high wind watch 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.