Alert archive / Virginia / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 683
The Storm Prediction Center issued this severe thunderstorm watch at Jul 25, 2005, 6:00 PM EDT for 4 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 25, 2005, 6:00 PM EDT (22:00 UTC)
- Expired
- Jul 25, 2005, 8:50 PM EDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 39 counties
Allegany County, MD, Garrett County, MD, Washington County, MD, Franklin County, PA, Fulton County, PA, Albemarle County, VA, Augusta County, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Harrisonburg, VA, City of Lexington, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fauquier County, VA, Fluvanna County, VA, Frederick County, VA, Greene County, VA, Highland County, VA, Louisa County, VA, Madison County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Rappahannock County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Warren County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV, Pendleton County, WV
The radar
The Sterling radar (KLWX), 115 km from the middle of the area, began a volume at 22:04 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 25, 6:32 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 58 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
Pittsburgh, PA (KPIT), launched 12:00Z, 10.0 hours before the alert went out and 184 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
- 2202 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 641 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 7.7
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:33 PM EDT | Mesoscale Discussion | SPC | Allegany, Charles, Frederick, Garrett, Howard, Montgomery and 2 more | 57 min |
| Jul 25, 7:34 PM EDT | Mesoscale Discussion | SPC | Washington | 56 min |
| Jul 24, 11:28 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 12 more | 92 min |
| Jul 24, 11:50 PM EDT | Severe Thunderstorm Watch | SPC | Clarion, Crawford, Forest, Jefferson, Mercer, Venango and 1 more | 4 hr |
| Jul 25, 12:57 PM EDT | Mesoscale Discussion | SPC | Allegheny, Beaver, Butler, Fayette, Greene, Lawrence and 2 more | 93 min |
| Jul 25, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more | 5 hr |
| Jul 25, 6:21 PM EDT | Mesoscale Discussion | SPC | Armstrong, Fayette, Greene, Indiana, Westmoreland | 24 min |
| Jul 25, 4:45 PM EDT | Severe Thunderstorm Watch | SPC | Alleghany, Bath, Botetourt, City of Covington | 4 hr |
| Jul 25, 7:09 PM EDT | Mesoscale Discussion | SPC | Alleghany, Bath, Craig, City of Covington | 66 min |
| Jul 25, 3:13 PM EDT | Mesoscale Discussion | SPC | Pleasants, Ritchie, Wirt, Wood | 92 min |
Nearby
Severe Thunderstorm Watches in Virginia, 2005Severe Thunderstorm Watches in West Virginia, 2005Severe Thunderstorm Watches in Maryland, 2005Every severe thunderstorm watch in 2005
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.