Alert archive / Oregon / Flash Flood Warnings in 2023
Flash Flood Warning 12, NWS Pendleton, OR
NWS Pendleton, OR issued this flash flood warning at Aug 22, 2023, 6:26 PM PDT for Wallowa County, Oregon. It was in force for 49 min. 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 22, 2023, 6:26 PM PDT (01:26 UTC)
- Expired
- Aug 22, 2023, 7:15 PM PDT
- In force
- 49 min
- Issued by
- NWS Pendleton, OR
- Area
- Storm-based polygon
- Flood severity
- None
County Wallowa County, OR
The radar
The Pendleton radar (KPDT), 131 km from the middle of the area, began a volume at 01:26 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
Boise Airport, ID (KBOI), launched 00:00Z, 1.4 hours before the alert went out and 237 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
- 516 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1653 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 288 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The office that day
Everything else NWS Pendleton, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 6:38 PM PDT | Flash Flood Warning | PDT | Wallowa | 52 min |
Nearby
Flash Flood Warnings in Oregon, 2023Every flash flood 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.