Alert archive / California / Red Flag Warnings in 2022
Red Flag Warning 3, NWS Los Angeles, CA
NWS Los Angeles, CA issued this red flag warning at Nov 18, 2022, 10:01 AM PST for Los Angeles County, Ventura County, California. It took effect at Nov 19, 2022, 1:00 AM PST. It was in force for 33 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, 2022, 10:01 AM PST (18:01 UTC)
- In effect from
- Nov 19, 2022, 1:00 AM PST
- Expired
- Nov 20, 2022, 10:00 AM PST
- In force
- 33 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 17:59 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, 6.0 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3457 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Los Angeles, CA wrote its last area forecast discussion before this red flag warning went out at Nov 18, 9:45 AM PST, 16 minutes earlier.
Area forecast discussion, Nov 18, 9:45 AM PST, 16 minutes before
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</html>The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 17, 8:11 PM PST | High Wind Watch | LOX | Los Angeles | 9 hr |
| Nov 18, 3:31 AM PST | Gale Warning | LOX | 34 hr | |
| Nov 18, 5:34 AM PST | High Wind Warning | LOX | Los Angeles | 32 hr |
| Nov 18, 5:34 AM PST | Wind Advisory | LOX | Los Angeles, Ventura | 51 hr |
Nearby
Red Flag Warnings in California, 2022Every red flag warning 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.