Alert archive / West Virginia / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 45
The Storm Prediction Center issued this severe thunderstorm watch at Feb 6, 2008, 2:31 AM EST for 4 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 6, 2008, 2:31 AM EST (07:31 UTC)
- Expired
- Feb 6, 2008, 6:00 AM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 70 kt
All 49 counties
Bell County, KY, Floyd County, KY, Harlan County, KY, Knott County, KY, Leslie County, KY, Letcher County, KY, Martin County, KY, Perry County, KY, Pike County, KY, Belmont County, OH, Guernsey County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH, Washington County, OH, Buchanan County, VA, Dickenson County, VA, Boone County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Fayette County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Logan County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, McDowell County, WV, Mingo County, WV, Monongalia County, WV, Nicholas County, WV, Pleasants County, WV, Putnam County, WV, Raleigh County, WV, Ritchie County, WV, Roane County, WV, Tyler County, WV, Wayne County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV, Wyoming County, WV
The radar
The Charleston,WV radar (KRLX), 58 km from the middle of the area, began a volume at 07:35 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 6, 2:43 AM EST | Severe Thunderstorm Warning | RLX | Athens, Gallia, Jackson, Meigs, Morgan, Perry and 2 more | 47 min |
| Feb 6, 3:10 AM EST | Severe Thunderstorm Warning | JKL | Breathitt, Floyd, Johnson, Knott, Magoffin, Martin and 2 more | 49 min |
| Feb 6, 3:12 AM EST | Severe Thunderstorm Warning | PBZ | Coshocton, Muskingum | 33 min |
| Feb 6, 3:18 AM EST | Severe Thunderstorm Warning | RLX | Boone, Jackson, Kanawha, Lincoln, Logan, Mason and 2 more | 57 min |
| Feb 6, 4:07 AM EST | Severe Thunderstorm Warning | RLX | Clay, Fayette, Nicholas, Raleigh | 38 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.5 hours before the alert went out and 180 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
- 537 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 295 m²/s²
- 0-3 km storm-relative helicity
- 379 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 7:15 PM EST | Mesoscale Discussion | SPC | Allen, Anderson, Barren, Boone, Boyle, Bracken and 49 more | 90 min |
| Feb 5, 8:08 PM EST | Tornado Watch | SPC | Adair, Allen, Anderson, Barren, Boone, Bourbon and 53 more | 6 hr |
| Feb 5, 9:07 PM EST | Mesoscale Discussion | SPC | Ballard, Calloway, Carlisle, Crittenden, Fulton, Graves and 5 more | 83 min |
| Feb 5, 10:19 PM EST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 99 more | 86 min |
| Feb 6, 12:41 AM EST | Tornado Watch | SPC | Adair, Allen, Barren, Bath, Bourbon, Boyd and 44 more | 5 hr |
| Feb 6, 2:48 AM EST | Mesoscale Discussion | SPC | Bath, Bell, Boyd, Breathitt, Carter, Clay and 37 more | 87 min |
| Feb 6, 4:49 AM EST | Mesoscale Discussion | SPC | Letcher | 86 min |
| Feb 6, 8:49 AM EST | Mesoscale Discussion | SPC | Pike | 116 min |
| Feb 6, 11:54 AM EST | Mesoscale Discussion | SPC | Adair, Anderson, Barren, Bath, Boone, Bourbon and 77 more | 96 min |
| Feb 6, 6:09 PM EST | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Bedford, Butler, Cambria and 6 more | 66 min |
Nearby
Severe Thunderstorm Watches in West Virginia, 2008Severe Thunderstorm Watches in Kentucky, 2008Severe Thunderstorm Watches in Ohio, 2008Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.