Alert archive / Washington / Red Flag Warnings in 2022
Red Flag Warning 6, NWS Pendleton, OR
NWS Pendleton, OR issued this red flag warning at Aug 21, 2022, 2:24 PM PDT for 4 counties in Washington. It took effect at Aug 21, 2022, 8:00 PM PDT. It was in force for 18 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
- Aug 21, 2022, 2:24 PM PDT (21:24 UTC)
- In effect from
- Aug 21, 2022, 8:00 PM PDT
- Expired
- Aug 22, 2022, 2:16 PM PDT
- In force
- 18 hr
- Issued by
- NWS Pendleton, OR
Counties Asotin County, WA, Columbia County, WA, Garfield County, WA, Walla Walla County, WA
The radar
The Pendleton radar (KPDT), 106 km from the middle of the area, began a volume at 21:22 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
Spokane, WA (KOTX), launched 12:00Z, 9.4 hours before the alert went out and 189 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
- 212 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 1834 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
Red Flag Warnings in Washington, 2022Red Flag Warnings in Oregon, 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.