Alert archive / California / Wind Advisories in 2022

Wind Advisory 43, NWS San Diego, CA

June 18, 2022Riverside County, San Diego County, California

NWS San Diego, CA issued this wind advisory at Jun 18, 2022, 6:48 AM PDT for Riverside County, San Diego County, California. It took effect at Jun 18, 2022, 2:00 PM PDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jun 18, 2022, 6:48 AM PDT (13:48 UTC)
In effect from
Jun 18, 2022, 2:00 PM PDT
Expired
Jun 18, 2022, 9:27 PM PDT
In force
7 hr
Issued by
NWS San Diego, CA

Counties Riverside County, CA, San Diego County, CA

The radar

The San Diego radar (KNKX), 80 km from the middle of the area, began a volume at 13:47 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, 1.8 hours before the alert went out and 100 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 2022-06-18Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2022-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 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
1216 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

476 
WWUS76 KSGX 181348
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
648 AM PDT Sat Jun 18 2022

CAZ058-062-065-182200-
/O.NEW.KSGX.WI.Y.0043.220618T2100Z-220619T0500Z/
San Diego County Mountains-San Diego County Deserts-
San Gorgonio Pass Near Banning-
Including the cities of Borrego Springs and Desert Hot Springs
648 AM PDT Sat Jun 18 2022

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

* WHAT...West winds 20 to 35 mph with gusts to 55 mph expected.

* WHERE...San Diego County Mountains, San Diego County Deserts 
  and San Gorgonio Pass Near Banning.

* WHEN...From 2 PM this afternoon to 10 PM PDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Patchy bowing dust could reduce visibility
  at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego
2 follow-up statements
701 
WWUS76 KSGX 182035
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
135 PM PDT Sat Jun 18 2022

CAZ058-062-065-190500-
/O.CON.KSGX.WI.Y.0043.220618T2100Z-220619T0500Z/
San Diego County Mountains-San Diego County Deserts-
San Gorgonio Pass Near Banning-
Including the cities of Borrego Springs and Desert Hot Springs
135 PM PDT Sat Jun 18 2022

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

* WHAT...West winds 20 to 35 mph with gusts to 55 mph expected.

* WHERE...San Diego County Mountains, San Diego County Deserts and
  San Gorgonio Pass Near Banning. Strongest gusts below the San
  Gorgonio Pass and along the I-8 grade into Imperial County.

* WHEN...From 2 PM this afternoon to 10 PM PDT this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Patchy bowing dust could reduce 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego
241 
WWUS76 KSGX 190427
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
927 PM PDT Sat Jun 18 2022

CAZ058-062-065-190530-
/O.CAN.KSGX.WI.Y.0043.000000T0000Z-220619T0500Z/
San Diego County Mountains-San Diego County Deserts-
San Gorgonio Pass Near Banning-
927 PM PDT Sat Jun 18 2022

...WIND ADVISORY IS CANCELLED...

Winds have diminished below criteria so the Wind Advisory has been
cancelled.

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego

What forecasters said that day

The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Diego, CA wrote its last area forecast discussion before this wind advisory went out at Jun 18, 3:15 AM PDT, 3 hours 33 minutes earlier.

Area forecast discussion, Jun 18, 3:15 AM PDT, 3 hours 33 minutes before
Area Forecast Discussion National Weather Service San Diego CA 315
AM PDT Sat Jun 18 2022

.SYNOPSIS...
A deep trough along the West Coast will bring a cooler day today and
breezy west winds this afternoon, strongest in the mountains and
deserts. The trough drifts east Sunday and Monday for warmer days
and lighter winds. Tuesday through Friday will be even warmer. It
will also turn more humid as the first surge of subtropical moisture
this season moves into the Southern California.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

Extraordinarily dry air aloft associated with the trough moving
inland across SoCal this morning has dropped dew points way below
zero in some of our mountains and deserts. Here's a sampling of dew
points in degrees F and the relative humidity at 2 AM Saturday:

San Bernardino Mountains and Deserts Yucca Valley........-11   3%
Big Bear Lake.......-13   6% Big Pine............-16   6% Green
Valley Lake...-29   3%

Riverside County Mountains Anza.................+6   21% Pine
Cove...........-12   6%  Mt San Jacinto......-33   1%

San Diego County Mountains and Deserts Ocotillo Wells.......+5   5%
Palomar Mountain....-16   5%    Ranchita............-19   3% Mt
Laguna...........-20   4%

In contrast, dew points were in the 50s in the coastal and valley
zones where a 3,000 ft deep marine layer was in place. The
Precipitable Water was around 0.50" this morning.

The passing trough today will bring another breezy afternoon, but
the winds won't be as strong as they were Friday. It'll also be
cooler than Friday as 500 mb heights bottom out at 578 dm. Highs
will be in the 70s and low 80s west of the mountains. In the Lower
Deserts, high temps will be held below 100. The cooling aloft and a
weaker inversion will mix out the morning marine layer clouds fairly
quickly today.

The trough slides east Sunday with 5H increasing to 584 dm, which
will add a few degrees of warming to all areas except the beaches
where highs will once again be in the upper 60s and low 70s.

The warming continues Monday and Tuesday as ridging builds in from
the east, increasing 5H to 586 dm. By Tuesday, Lower Desert highs
will be from 105-110, High Desert and Inland Empire highs near 95,
mountains highs in the 70s and 80s, and coastal highs in the 70s and
80s.

The Wed-Fri outlook gets interesting as southerly flow ahead of a
weak upper low over central California draws subtropical moisture
into SoCal. An added influx of moisture is possible in the southeast
around the base of a massive 597 dm high that will anchor itself
over the Southern Plains. Precipitable Water over SoCal is forecast
to increase to 1.25" Wednesday, which will be sufficient for mid and
high clouds Wednesday. There is also the potential for elevated
convection in the form of virga or light showers. Some models are
showing small amounts of measurable rain Wednesday.

The warmer and more humid airmass will keep the nights quite warm,
and record high minimum temperatures are quite likely in some areas
Wednesday and Thursday.

&&

.AVIATION...
180935Z...Coasts/Valleys...BKN-OVC with bases 2000-2500 FT MSL will
continue to fill in across the coastal basin this morning.
Intermittent cigs vcty KONT and KSBD through 14z Sat. Scatter out 15-
17z Sat. Low clouds will redevelop after 00z Sun with bases 1500-
2000 FT MSL.

Mountains/Deserts...Mostly clear with unrestricted vis through Sat.
Breezy W-SW winds with surface gusts 25-40 knots, local gusts over
50 knots. MOD-STG up/downdrafts and LLWS over/east of mtns. Winds
will diminish slightly Sat morning but will restrengthen after 20z
Sat.

&&

.MARINE...
Breezy northwest winds occasionally gusting over 20 knots are likely
across the outer coastal waters, including near San Clemente Island,
during the afternoon and evening today. Otherwise, no hazardous
marine weather is expected through Wednesday.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.

PZ...NONE.

&&

PUBLIC...Moede
AVIATION/MARINE...Schenk

Nearby

Wind Advisories in California, 2022Every wind advisory in 2022

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.