Alert archive / Washington / Red Flag Warnings in 2007
Red Flag Warning 6, NWS Pendleton, OR
NWS Pendleton, OR issued this red flag warning at Aug 29, 2007, 3:07 PM PDT for Clark County, Cowlitz County, Skamania County, Washington. It took effect at Aug 30, 2007, 8:54 AM PDT. It was in force for 36 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 29, 2007, 3:07 PM PDT (22:07 UTC)
- In effect from
- Aug 30, 2007, 8:54 AM PDT
- Expired
- Aug 31, 2007, 9:00 PM PDT
- In force
- 36 hr
- Issued by
- NWS Pendleton, OR
Counties Clark County, WA, Cowlitz County, WA, Skamania County, WA
The radar
The Portland,OR radar (KRTX), 56 km from the middle of the area, began a volume at 22:12 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
Medford/Jackson, OR (KMFR), launched 12:00Z, 10.1 hours before the alert went out and 405 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
- 2090 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 80 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 Pendleton, OR wrote its last area forecast discussion before this red flag warning went out at Aug 29, 1:45 PM PDT, 1 hour 22 minutes earlier.
Area forecast discussion, Aug 29, 1:45 PM PDT, 1 hour 22 minutes before
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</html>Hazardous weather outlook, Aug 29, 3:00 PM PDT, 7 minutes before
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Red Flag Warnings in Washington, 2007Red Flag Warnings in Oregon, 2007Every red flag warning in 2007
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.