Alert archive / Virginia / Mesoscale Discussions in 2003
Mesoscale Discussion 167
The Storm Prediction Center issued this mesoscale discussion at Feb 27, 2003, 9:51 AM EST for 45 counties in Virginia; 8 counties in West Virginia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 27, 2003, 9:51 AM EST (14:51 UTC)
- Expired
- Feb 27, 2003, 3:45 PM EST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 53 counties
Albemarle County, VA, Alleghany County, VA, Amherst County, VA, Appomattox County, VA, Augusta County, VA, Bath County, VA, Bedford County, VA, Botetourt County, VA, Buckingham County, VA, Campbell County, VA, Caroline County, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Covington, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Lexington, VA, City of Lynchburg, VA, City of Roanoke, VA, City of Salem, VA, City of Staunton, VA, City of Waynesboro, VA, Craig County, VA, Culpeper County, VA, Cumberland County, VA, Fauquier County, VA, Fluvanna County, VA, Giles County, VA, Goochland County, VA, Greene County, VA, Highland County, VA, King George County, VA, Louisa County, VA, Madison County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Rappahannock County, VA, Roanoke County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Greenbrier County, WV, Hampshire County, WV, Hardy County, WV, Mercer County, WV, Monroe County, WV, Pendleton County, WV, Pocahontas County, WV, Summers County, WV
The radar
The Sterling radar (KLWX), 141 km from the middle of the area, began a volume at 14:46 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 2.9 hours before the alert went out and 247 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
- 466 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 344 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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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 5:04 AM EST | Mesoscale Discussion | SPC | Carroll, Grayson, Halifax, Henry, Mecklenburg, Patrick and 4 more | 5 hr |
| Feb 27, 3:19 PM EST | Mesoscale Discussion | SPC | Arlington | 6 hr |
Nearby
Mesoscale Discussions in Virginia, 2003Mesoscale Discussions in West Virginia, 2003Every mesoscale discussion in 2003
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.