Alert archive / West Virginia / Flash Flood Watches in 2009
Flash Flood Watch 9, NWS Charleston, WV
NWS Charleston, WV issued this flash flood watch at Jul 26, 2009, 10:22 AM EDT for McDowell County, Wyoming County, West Virginia. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jul 26, 2009, 10:22 AM EDT (14:22 UTC)
- Expired
- Jul 26, 2009, 4:31 PM EDT
- In force
- 6 hr
- Issued by
- NWS Charleston, WV
- Flood severity
- None
Counties McDowell County, WV, Wyoming County, WV
The radar
The Charleston,WV radar (KRLX), 91 km from the middle of the area, began a volume at 14:23 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 2.4 hours before the alert went out and 288 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
- 161 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 852 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, WV wrote its last area forecast discussion before this flash flood watch went out at Jul 25, 6:42 PM EDT, 15 hours 40 minutes earlier.
Area forecast discussion, Jul 25, 6:42 PM EDT, 15 hours 40 minutes before
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</html>Hazardous weather outlook, Jul 25, 4:43 PM EDT, 17 hours 39 minutes before
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</html>The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 1:35 AM EDT | Flash Flood Watch | RLX | Boone, Braxton, Cabell, Clay, Kanawha, Lincoln and 8 more | 5 hr |
Nearby
Flash Flood Watches in West Virginia, 2009Every flash flood watch in 2009
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.