Alert archive / West Virginia / Mesoscale Discussions in 2008
Mesoscale Discussion 667
The Storm Prediction Center issued this mesoscale discussion at Apr 19, 2008, 3:01 PM EDT for 6 states. It was in force for 119 min.
The area
The outline as issued.
The facts
- Issued
- Apr 19, 2008, 3:01 PM EDT (19:01 UTC)
- Expired
- Apr 19, 2008, 5:00 PM EDT
- In force
- 119 min
- Issued by
- the Storm Prediction Center
All 62 counties
Boyd County, KY, Carter County, KY, Elliott County, KY, Floyd County, KY, Johnson County, KY, Knott County, KY, Lawrence County, KY, Letcher County, KY, Martin County, KY, Pike County, KY, Alleghany County, NC, Ashe County, NC, Avery County, NC, Mitchell County, NC, Watauga County, NC, Wilkes County, NC, Gallia County, OH, Lawrence County, OH, Carter County, TN, Greene County, TN, Hawkins County, TN, Johnson County, TN, Sullivan County, TN, Unicoi County, TN, Washington County, TN, Bland County, VA, Buchanan County, VA, Carroll County, VA, City of Bristol, VA, City of Galax, VA, City of Norton, VA, Dickenson County, VA, Giles County, VA, Grayson County, VA, Pulaski County, VA, Russell County, VA, Scott County, VA, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wise County, VA, Wythe County, VA, Boone County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Fayette County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mason County, WV, McDowell County, WV, Mercer County, WV, Mingo County, WV, Nicholas County, WV, Putnam County, WV, Raleigh County, WV, Roane County, WV, Summers County, WV, Wayne County, WV, Wyoming County, WV
The radar
The Charleston,WV radar (KRLX), 93 km from the middle of the area, began a volume at 19:03 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
Roanoke, VA (KRNK), launched 12:00Z, 7.0 hours before the alert went out and 218 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
- 1639 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- -31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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Mesoscale Discussions in West Virginia, 2008Mesoscale Discussions in Virginia, 2008Mesoscale Discussions in Kentucky, 2008Every mesoscale discussion 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.