Alert archive / Virginia / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 672
The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2003, 8:25 PM EDT for 4 counties in Maryland; 51 counties in Virginia; 13 counties in West Virginia. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2003, 8:25 PM EDT (00:25 UTC)
- Expired
- Jul 8, 2003, 1:00 AM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 68 counties
Allegany County, MD, Carroll County, MD, Frederick County, MD, Washington County, MD, Albemarle County, VA, Alleghany County, VA, Amherst County, VA, Augusta County, VA, Bath County, VA, Bedford County, VA, Bland County, VA, Botetourt County, VA, Campbell County, VA, Carroll County, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Covington, VA, City of Galax, VA, City of Harrisonburg, VA, City of Lexington, VA, City of Lynchburg, VA, City of Martinsville, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Craig County, VA, Culpeper County, VA, Fauquier County, VA, Floyd County, VA, Franklin County, VA, Frederick County, VA, Giles County, VA, Grayson County, VA, Greene County, VA, Henry County, VA, Highland County, VA, Loudoun County, VA, Madison County, VA, Montgomery County, VA, Nelson County, VA, Page County, VA, Patrick County, VA, Pittsylvania County, VA, Pulaski County, VA, Rappahannock County, VA, Roanoke County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Warren County, VA, Wythe County, VA, Berkeley County, WV, Grant County, WV, Greenbrier County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Monroe County, WV, Morgan County, WV, Pendleton County, WV, Pocahontas County, WV, Randolph County, WV, Tucker County, WV
The radar
The Roanoke radar (KFCX), 96 km from the middle of the area, began a volume at 00:25 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.
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 9:38 PM EDT | Severe Thunderstorm Warning | RNK | Monroe | 37 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
Roanoke, VA (KRNK), launched 00:00Z, 0.4 hours before the alert went out and 73 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
- 857 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1375 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 10:32 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Washington | 58 min |
| Jul 8, 7:29 AM EDT | Mesoscale Discussion | SPC | Garrett | 61 min |
| Jul 7, 9:55 PM EDT | Severe Thunderstorm Watch | SPC | Braxton, Brooke, Cabell, Calhoun, Clay, Doddridge and 20 more | 3 hr |
| Jul 8, 12:57 AM EDT | Mesoscale Discussion | SPC | Braxton, Brooke, Cabell, Calhoun, Clay, Doddridge and 21 more | 63 min |
| Jul 8, 2:57 AM EDT | Mesoscale Discussion | SPC | Brooke, Hancock, Marshall, Ohio, Pleasants, Tyler and 1 more | 63 min |
| Jul 8, 3:20 AM EDT | Severe Thunderstorm Watch | SPC | Barbour, Brooke, Doddridge, Hancock, Harrison, Lewis and 12 more | 6 hr |
| Jul 8, 6:06 AM EDT | Mesoscale Discussion | SPC | Barbour, Brooke, Doddridge, Hancock, Harrison, Lewis and 13 more | 114 min |
| Jul 8, 1:25 PM EDT | Mesoscale Discussion | SPC | Boone, Cabell, Fayette, Jackson, Kanawha, Lincoln and 8 more | 95 min |
| Jul 8, 3:02 PM EDT | Mesoscale Discussion | SPC | Barbour, Braxton, Brooke, Cabell, Calhoun, Clay and 26 more | 28 min |
| Jul 8, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | Barbour, Braxton, Brooke, Cabell, Calhoun, Clay and 25 more | 5 hr |
| Jul 8, 5:05 PM EDT | Mesoscale Discussion | SPC | Barbour, Braxton, Brooke, Cabell, Calhoun, Clay and 25 more | 115 min |
Nearby
Severe Thunderstorm Watches in Virginia, 2003Severe Thunderstorm Watches in West Virginia, 2003Severe Thunderstorm Watches in Maryland, 2003Every severe thunderstorm watch 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.