Alert archive / California / Wind Advisories in 2021

Wind Advisory 2, NWS San Diego, CA

January 15, 2021San Diego County, California

NWS San Diego, CA issued this wind advisory at Jan 15, 2021, 3:13 AM PST for San Diego County, California. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jan 15, 2021, 3:13 AM PST (11:13 UTC)
Expired
Jan 15, 2021, 1:39 PM PST
In force
10 hr
Issued by
NWS San Diego, CA

County San Diego County, CA

The radar

The San Diego radar (KNKX), 28 km from the middle of the area, began a volume at 11:10 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, 11.2 hours before the alert went out and 47 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 2021-01-15Temperature 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 00:00Z on 2021-01-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -81 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
3768 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-81 m²/s²
0-3 km storm-relative helicity
-59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

973 
WWUS76 KSGX 151113
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
313 AM PST Fri Jan 15 2021

CAZ050-058-152200-
/O.NEW.KSGX.WI.Y.0002.210115T1113Z-210115T2200Z/
San Diego County Valleys-San Diego County Mountains-
Including the cities of Julian and Pine Valley
313 AM PST Fri Jan 15 2021

...WIND ADVISORY IN EFFECT UNTIL 2 PM PST THIS AFTERNOON...

* WHAT...Northeast winds 25 to 35 mph with gusts to 55 mph.
  Isolated gusts to 65 mph.

* WHERE...Inland San Diego County valleys into the mountains.

* WHEN...Until 2 PM PST this afternoon.

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

* ADDITIONAL DETAILS...The strongest winds will be through around
  sunrise.

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

17
1 follow-up statement
081 
WWUS76 KSGX 152139
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
139 PM PST Fri Jan 15 2021

CAZ050-058-152245-
/O.CAN.KSGX.WI.Y.0002.000000T0000Z-210115T2200Z/
San Diego County Valleys-San Diego County Mountains-
139 PM PST Fri Jan 15 2021

...WIND ADVISORY WILL EXPIRE AT 2 PM...

Strong winds have begun to decrease and will continue to do so
this afternoon.

$$

Nearby

Wind Advisories in California, 2021Every wind advisory in 2021

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.