Alert archive / Washington / Flash Flood Warnings in 2008
Flash Flood Warning 3, NWS Spokane, WA
NWS Spokane, WA issued this flash flood warning at Aug 8, 2008, 4:32 PM PDT for Chelan County, Washington. It was in force for 88 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 8, 2008, 4:32 PM PDT (23:32 UTC)
- Expired
- Aug 8, 2008, 6:00 PM PDT
- In force
- 88 min
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
- Flood severity
- None
County Chelan County, WA
The radar
The Seattle radar (KATX), 121 km from the middle of the area, began a volume at 23:34 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 8, 5:24 PM PDT | FLASH FLOOD | 3 W Telma, WA | CHELAN COUNTY SHERRIFF REPORTED WATER OVER THE WHITE RIVER ROAD 2 1/2 MILES WEST OF LAKE WENATCHEE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Quillayute State, WA (KUIL), launched 12:00Z, 11.5 hours before the alert went out and 267 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
- 731 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS56 KOTX 082332 FFWOTX WAC007-090100- /O.NEW.KOTX.FF.W.0003.080808T2332Z-080809T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SPOKANE WA 432 PM PDT FRI AUG 8 2008 THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A * FLASH FLOOD WARNING FOR... WEST CENTRAL CHELAN COUNTY IN NORTH CENTRAL WASHINGTON... * UNTIL 600 PM PDT * AT 423 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED POSSIBLE FLASH FLOODING FROM A THUNDERSTORMS OVER THE WARNED AREA. THIS WARNING INCLUDES THE WHITE RIVER VALLEY AND UPPER WENATCHEE RIVER VALLEY UPSTREAM OF LAKE WENATCHEE. CAMPGROUNDS IN THIS WARNED AREA INCLUDE SODA SPRINGS...RIVERSIDE...NAPEEQUA CROSSING AND WHITE RIVER FALLS. FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS. LAT...LON 4803 12097 4789 12079 4777 12081 4784 12107 $$ MJF
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 4:00 PM PDT | Severe Thunderstorm Warning | OTX | Chelan | 45 min |
| Aug 8, 4:51 PM PDT | Severe Thunderstorm Warning | OTX | Asotin | 39 min |
Nearby
Flash Flood Warnings in Washington, 2008Every flash flood warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.