Alert archive / Virginia / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 723
The Storm Prediction Center issued this severe thunderstorm watch at Aug 16, 2005, 1:30 PM EDT for 5 states. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2005, 1:30 PM EDT (17:30 UTC)
- Expired
- Aug 16, 2005, 9:00 PM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
All 69 counties
Martin County, KY, Pike County, KY, Alleghany County, NC, Ashe County, NC, Caswell County, NC, Person County, NC, Rockingham County, NC, Stokes County, NC, Surry County, NC, Johnson County, TN, Sullivan County, TN, Alleghany County, VA, Amherst County, VA, Appomattox County, VA, Augusta County, VA, Bath County, VA, Bedford County, VA, Bland County, VA, Botetourt County, VA, Buchanan County, VA, Campbell County, VA, Carroll County, VA, Charlotte County, VA, City of Bristol, VA, City of Buena Vista, VA, City of Covington, VA, City of Danville, VA, City of Galax, 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, Craig County, VA, Dickenson County, VA, Floyd County, VA, Franklin County, VA, Giles County, VA, Grayson County, VA, Halifax County, VA, Henry County, VA, Montgomery County, VA, Nelson County, VA, Patrick County, VA, Pittsylvania County, VA, Pulaski County, VA, Roanoke County, VA, Rockbridge County, VA, Russell County, VA, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wythe County, VA, Boone County, WV, Fayette County, WV, Greenbrier County, WV, Lincoln County, WV, Logan County, WV, McDowell County, WV, Mercer County, WV, Mingo County, WV, Monroe County, WV, Raleigh County, WV, Summers County, WV, Wayne County, WV, Wyoming County, WV
The radar
The Roanoke radar (KFCX), 80 km from the middle of the area, began a volume at 17:20 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
16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 1:57 PM EDT | Severe Thunderstorm Warning | RNK | Patrick | 34 min |
| Aug 16, 2:04 PM EDT | Severe Thunderstorm Warning | JKL | Martin | 42 min |
| Aug 16, 2:27 PM EDT | Severe Thunderstorm Warning | RNK | Bedford | 49 min |
| Aug 16, 2:46 PM EDT | Severe Thunderstorm Warning | RLX | Mingo | 44 min |
| Aug 16, 2:58 PM EDT | Severe Thunderstorm Warning | RNK | Franklin | 47 min |
| Aug 16, 3:04 PM EDT | Severe Thunderstorm Warning | JKL | Pike | 41 min |
| Aug 16, 3:35 PM EDT | Severe Thunderstorm Warning | RNK | Pittsylvania | 28 min |
| Aug 16, 3:42 PM EDT | Severe Thunderstorm Warning | RLX | Fayette | 33 min |
| Aug 16, 3:50 PM EDT | Severe Thunderstorm Warning | RNK | Botetourt | 40 min |
| Aug 16, 3:50 PM EDT | Severe Thunderstorm Warning | RNK | Botetourt | 40 min |
| Aug 16, 4:06 PM EDT | Severe Thunderstorm Warning | RLX | Raleigh | 24 min |
| Aug 16, 4:12 PM EDT | Severe Thunderstorm Warning | RNK | Amherst | 33 min |
| Aug 16, 4:18 PM EDT | Severe Thunderstorm Warning | RNK | Mercer | 42 min |
| Aug 16, 5:10 PM EDT | Severe Thunderstorm Warning | RNK | Monroe, Summers | 52 min |
| Aug 16, 6:42 PM EDT | Severe Thunderstorm Warning | RAH | Person | 33 min |
| Aug 16, 7:04 PM EDT | Severe Thunderstorm Warning | RNK | Franklin | 43 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 12:00Z, 5.5 hours before the alert went out and 134 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
- 1568 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 545 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 83 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 |
|---|---|---|---|---|
| Aug 16, 1:13 PM EDT | Mesoscale Discussion | SPC | Boyd, Floyd, Johnson, Knott, Letcher, Martin and 2 more | 62 min |
| Aug 16, 3:09 PM EDT | Mesoscale Discussion | SPC | Bertie, Camden, Chowan, Currituck, Edgecombe, Gates and 8 more | 36 min |
| Aug 16, 3:55 PM EDT | Severe Thunderstorm Watch | SPC | Bertie, Camden, Chowan, Currituck, Gates, Granville and 7 more | 6 hr |
| Aug 16, 5:02 PM EDT | Mesoscale Discussion | SPC | Alleghany, Ashe, Caswell, Person, Rockingham, Stokes and 1 more | 58 min |
| Aug 16, 7:57 PM EDT | Mesoscale Discussion | SPC | Alamance, Alexander, Bertie, Buncombe, Burke, Caldwell and 34 more | 93 min |
| Aug 16, 6:21 PM EDT | Mesoscale Discussion | SPC | Amelia, Brunswick, Caroline, Charles City, Chesterfield, Dinwiddie and 41 more | 84 min |
Nearby
Severe Thunderstorm Watches in Virginia, 2005Severe Thunderstorm Watches in West Virginia, 2005Severe Thunderstorm Watches in North Carolina, 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.