Alert archive / California / Wind Advisories in 2023

Wind Advisory 14, NWS Los Angeles, CA

January 30, 2023Los Angeles County, Ventura County, California

NWS Los Angeles, CA issued this wind advisory at Jan 30, 2023, 1:57 PM PST for Los Angeles County, Ventura County, California. It took effect at Jan 30, 2023, 8:00 PM PST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Jan 30, 2023, 1:57 PM PST (21:57 UTC)
In effect from
Jan 30, 2023, 8:00 PM PST
Expired
Jan 31, 2023, 6:00 PM PST
In force
22 hr
Issued by
NWS Los Angeles, CA

Counties Los Angeles County, CA, Ventura County, CA

The radar

The Los Angeles radar (KVTX), 47 km from the middle of the area, began a volume at 21:57 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, 10.0 hours before the alert went out and 215 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 2023-01-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 joules per kilogram.LCLLFCEL10008507005003002001001 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 2023-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.1939587897Sfc1 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
14 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
611 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 30, 1:57 PM PSTFrost AdvisoryLOXSan Luis Obispo, Santa Barbara, Ventura18 hr
Jan 30, 1:57 PM PSTFreeze WatchLOXSan Luis Obispo, Santa Barbara, Ventura24 hr
Jan 30, 1:57 PM PSTHard Freeze WatchLOX24 hr
Jan 30, 2:22 PM PSTSmall Craft AdvisoryLOX43 hr

Nearby

Wind Advisories in California, 2023Every wind advisory in 2023

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.