Alert archive / California / Wind Advisories in 2023

Wind Advisory 89, NWS Los Angeles, CA

October 9, 20234 counties in California

NWS Los Angeles, CA issued this wind advisory at Oct 9, 2023, 12:57 PM PDT for 4 counties in California. It took effect at Oct 10, 2023, 12:00 PM PDT. It was in force for 48 hr.

The area

The counties it named.

The facts

Issued
Oct 9, 2023, 12:57 PM PDT (19:57 UTC)
In effect from
Oct 10, 2023, 12:00 PM PDT
Expired
Oct 12, 2023, 12:00 PM PDT
In force
48 hr
Issued by
NWS Los Angeles, CA

Counties Los Angeles County, CA, San Luis Obispo County, CA, Santa Barbara County, CA, Ventura County, CA

The radar

The Los Angeles radar (KVTX), 35 km from the middle of the area, began a volume at 19:57 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, 8.0 hours before the alert went out and 291 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 2023-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2023-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2098 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
34 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
Oct 8, 8:53 PM PDTSmall Craft AdvisoryLOX42 hr
Oct 9, 3:30 AM PDTGale WatchLOX11 hr
Oct 9, 3:30 AM PDTSmall Craft AdvisoryLOX72 hr
Oct 9, 3:43 AM PDTWind AdvisoryLOXSanta Barbara23 hr
Oct 9, 2:25 PM PDTGale WatchLOX24 hr
Oct 9, 2:25 PM PDTGale WarningLOX61 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.