Alert archive / California / Red Flag Warnings in 2019
Red Flag Warning 6, NWS Los Angeles, CA
NWS Los Angeles, CA issued this red flag warning at Oct 28, 2019, 1:14 PM PDT for Los Angeles County, California. It took effect at Oct 29, 2019, 11:00 PM PDT. It was in force for 4 days. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 28, 2019, 1:14 PM PDT (20:14 UTC)
- In effect from
- Oct 29, 2019, 11:00 PM PDT
- Expired
- Nov 2, 2019, 6:00 PM PDT
- In force
- 4 days
- Issued by
- NWS Los Angeles, CA
County Los Angeles County, CA
The radar
The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 20:20 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, 8.2 hours before the alert went out and 184 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
- 1133 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- -107 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 Oct 28, 10:43 AM PDT, 2 hours 31 minutes earlier.
Area forecast discussion, Oct 28, 10:43 AM PDT, 2 hours 31 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 |
|---|---|---|---|---|
| Oct 28, 3:11 AM PDT | Freeze Watch | LOX | 11 hr | |
| Oct 28, 1:46 PM PDT | Gale Watch | LOX | 19 hr | |
| Oct 28, 2:14 PM PDT | Frost Advisory | LOX | 18 hr | |
| Oct 28, 2:14 PM PDT | Freeze Watch | LOX | 24 hr | |
| Oct 28, 2:14 PM PDT | High Wind Watch | LOX | Los Angeles | 19 hr |
| Oct 28, 2:14 PM PDT | Hard Freeze Watch | LOX | 24 hr |
Nearby
Red Flag Warnings in California, 2019Every red flag warning in 2019
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.