Alert archive / California / Red Flag Warnings in 2019
Red Flag Warning 5, NWS Los Angeles, CA
NWS Los Angeles, CA issued this red flag warning at Oct 26, 2019, 4:12 PM PDT for Los Angeles County, California. It took effect at Oct 27, 2019, 6:00 PM PDT. It was in force for 24 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
- Oct 26, 2019, 4:12 PM PDT (23:12 UTC)
- In effect from
- Oct 27, 2019, 6:00 PM PDT
- Expired
- Oct 28, 2019, 6:00 PM PDT
- In force
- 24 hr
- 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 23:17 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, 11.2 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
- 4393 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 41 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 26, 12:59 PM PDT, 3 hours 13 minutes earlier.
Area forecast discussion, Oct 26, 12:59 PM PDT, 3 hours 13 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 25, 8:57 PM PDT | Wind Advisory | LOX | 4 hr | |
| Oct 26, 2:08 AM PDT | Small Craft Advisory | LOX | 24 hr | |
| Oct 26, 1:00 PM PDT | Freeze Watch | LOX | 23 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.