Alert archive / California / High Wind Warnings in 2023
High Wind Warning 17, NWS Los Angeles, CA
NWS Los Angeles, CA issued this high wind warning at Nov 18, 2023, 3:23 AM PST for Los Angeles County, Santa Barbara County, Ventura County, California. It took effect at Nov 19, 2023, 12:00 AM PST. It was in force for 60 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 18, 2023, 3:23 AM PST (11:23 UTC)
- In effect from
- Nov 19, 2023, 12:00 AM PST
- Expired
- Nov 21, 2023, 12:00 PM PST
- In force
- 60 hr
- Issued by
- NWS Los Angeles, CA
Counties Los Angeles County, CA, Santa Barbara County, CA, Ventura County, CA
The radar
The Los Angeles radar (KVTX), 6 km from the middle of the area, began a volume at 11:26 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, 11.4 hours before the alert went out and 250 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.
- Mixed-layer CAPE
- 35 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 835 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 1:56 AM PST | Gale Watch | LOX | 25 hr | |
| Nov 18, 1:56 AM PST | Small Craft Advisory | LOX | 56 hr | |
| Nov 18, 3:23 AM PST | Wind Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 3 days |
| Nov 18, 8:45 AM PST | Areal Flood Advisory | LOX | San Luis Obispo | 4 hr |
| Nov 18, 9:05 AM PST | Small Craft Advisory | LOX | 4 hr | |
| Nov 18, 9:31 AM PST | Flash Flood Warning | LOX | San Luis Obispo | 96 min |
| Nov 18, 1:35 PM PST | High Wind Watch | LOX | Los Angeles, Ventura | 22 hr |
| Nov 18, 2:47 PM PST | Areal Flood Advisory | LOX | San Luis Obispo | 88 min |
Nearby
High Wind Warnings in California, 2023Every high wind warning 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.