Alert archive / California / Wind Advisories in 2017

Wind Advisory 17, NWS San Diego, CA

April 3, 2017Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this wind advisory at Apr 3, 2017, 3:47 AM PDT for Riverside County, San Bernardino County, San Diego County, California. It took effect at Apr 3, 2017, 2:00 PM PDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Apr 3, 2017, 3:47 AM PDT (10:47 UTC)
In effect from
Apr 3, 2017, 2:00 PM PDT
Expired
Apr 3, 2017, 10:00 PM PDT
In force
8 hr
Issued by
NWS San Diego, CA

Counties Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 10:53 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 00:00Z, 10.8 hours before the alert went out and 145 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 2017-04-03Temperature 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 2017-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
2446 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

249 
WWUS76 KSGX 031047
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
347 AM PDT Mon Apr 3 2017

...Strong gusty west winds for the mountains and deserts for this
afternoon and evening...

.A low pressure system moving southeastward through the Great
Basin will bring stronger onshore flow to Southern California
today with strong gusty west winds in the mountains and deserts
for this afternoon and evening.

CAZ055-056-058-060-062-065-032145-
/O.NEW.KSGX.WI.Y.0017.170403T2100Z-170404T0500Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Big Bear City, Wrightwood, Julian, 
Victorville, Hesperia, Apple Valley, Borrego Springs, 
and Desert Hot Springs
347 AM PDT Mon Apr 3 2017

...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT
THIS EVENING...

The National Weather Service in San Diego has issued a Wind
Advisory, which is in effect from 2 PM this afternoon to 10 PM
PDT this evening. 

* WINDS...Areas of west winds 20 to 30 mph with gusts to 45 mph.
  Isolated gusts to 60 mph.

* LOCATION...Along desert mountain slopes into adjacent portions
  for the deserts.

* VISIBILITY...Locally reduced in blowing sand and blowing dust in
  the deserts.

* IMPACTS...The winds will make driving difficult...especially for
  motorists with high profile vehicles. Watch for broken tree
  limbs and other debris. 

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.

&&

$$

17
2 follow-up statements
330 
WWUS76 KSGX 032029
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
129 PM PDT Mon Apr 3 2017

...Gusty westerly winds over the mountains and deserts this 
afternoon and evening...

.A low pressure trough moving southeastward through the Great 
Basin will bring stronger onshore flow across the mountains and 
deserts through this evening.

CAZ055-056-058-060-062-065-040500-
/O.CON.KSGX.WI.Y.0017.170403T2100Z-170404T0500Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Big Bear City, Wrightwood, Julian, 
Victorville, Hesperia, Apple Valley, Borrego Springs, 
and Desert Hot Springs
129 PM PDT Mon Apr 3 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING...

* WINDS...Areas of west winds 20 to 30 mph with gusts to 45 mph. 
  Isolated gusts to 60 mph. 

* LOCATION...Along desert mountain slopes into adjacent portions 
  for the deserts. 

* VISIBILITY...Locally reduced in blowing sand and dust in the 
  deserts. 

* IMPACTS...The winds will make driving difficult...especially for
  motorists in high profile vehicles. Watch for broken tree limbs
  and other debris. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for motorists
in high profile vehicles. Use extra caution.

&&

$$

JAD
902 
WWUS76 KSGX 040449
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
949 PM PDT Mon Apr 3 2017

CAZ055-056-058-060-062-065-040600-
/O.EXP.KSGX.WI.Y.0017.000000T0000Z-170404T0500Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-Apple and Lucerne Valleys-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Big Bear City, Wrightwood, Julian, 
Victorville, Hesperia, Apple Valley, Borrego Springs, 
and Desert Hot Springs
949 PM PDT Mon Apr 3 2017

...WIND ADVISORY WILL EXPIRE AT 10 PM PDT THIS EVENING...

Winds have dropped below advisory criteria and will continue to
diminish overnight. The wind advisory will be allowed to expire at
10 PM.

$$

ss

Nearby

Wind Advisories in California, 2017Every wind advisory in 2017

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.