Alert archive / Virginia / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 733

July 12, 20036 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 12, 2003, 5:05 PM EDT for 6 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 12, 2003, 5:05 PM EDT (21:05 UTC)
Expired: Jul 12, 2003, 11:00 PM EDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 141 counties

Bath County, KY, Bell County, KY, Boyd County, KY, Bracken County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Greenup County, KY, Harlan County, KY, Johnson County, KY, Knott County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Magoffin County, KY, Martin County, KY, Mason County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Nicholas County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Robertson County, KY, Rowan County, KY, Wolfe County, KY, Allegany County, MD, Garrett County, MD, Gallia County, OH, Lawrence County, OH, Scioto County, OH, Hancock County, TN, Albemarle County, VA, 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, Buckingham County, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Covington, VA, City of Harrisonburg, VA, City of Lexington, VA, City of Lynchburg, VA, City of Norton, 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, Cumberland County, VA, Dickenson County, VA, Fluvanna County, VA, Frederick County, VA, Giles County, VA, Goochland County, VA, Greene County, VA, Highland County, VA, Lee County, VA, Louisa County, VA, Madison County, VA, Montgomery County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Powhatan County, VA, Pulaski County, VA, Rappahannock County, VA, Roanoke County, VA, Rockbridge County, VA, Rockingham County, VA, Russell County, VA, Scott County, VA, Shenandoah County, VA, Smyth County, VA, Tazewell County, VA, Warren County, VA, Washington County, VA, Wise County, VA, Wythe County, VA, Barbour County, WV, Berkeley County, WV, Boone County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Fayette County, WV, Gilmer County, WV, Grant County, WV, Greenbrier County, WV, Hampshire County, WV, Hardy County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Logan County, WV, Mason County, WV, McDowell County, WV, Mercer County, WV, Mineral County, WV, Mingo County, WV, Monroe County, WV, Morgan County, WV, Nicholas County, WV, Pendleton County, WV, Pocahontas County, WV, Preston County, WV, Putnam County, WV, Raleigh County, WV, Randolph County, WV, Ritchie County, WV, Roane County, WV, Summers County, WV, Taylor County, WV, Tucker County, WV, Upshur County, WV, Wayne County, WV, Webster County, WV, Wirt County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 19 km from the middle of the area, began a volume at 21:06 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

14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 12, 5:15 PM EDT	Severe Thunderstorm Warning	ILN	Lewis	15 min
Jul 12, 5:16 PM EDT	Severe Thunderstorm Warning	MRX	Washington	29 min
Jul 12, 5:22 PM EDT	Severe Thunderstorm Warning	RNK	Grayson, Smyth	23 min
Jul 12, 5:24 PM EDT	Severe Thunderstorm Warning	PBZ	Preston	66 min
Jul 12, 5:25 PM EDT	Severe Thunderstorm Warning	LWX	Hampshire	65 min
Jul 12, 5:35 PM EDT	Severe Thunderstorm Warning	RLX	Greenup	40 min
Jul 12, 5:45 PM EDT	Severe Thunderstorm Warning	RLX	Cabell	30 min
Jul 12, 6:00 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, City of Winchester	60 min
Jul 12, 6:17 PM EDT	Severe Thunderstorm Warning	LWX	Berkeley	58 min
Jul 12, 6:21 PM EDT	Severe Thunderstorm Warning	JKL	Elliott	39 min
Jul 12, 6:30 PM EDT	Severe Thunderstorm Warning	LWX	Clarke	60 min
Jul 12, 6:48 PM EDT	Severe Thunderstorm Warning	JKL	Morgan	57 min
Jul 12, 7:15 PM EDT	Severe Thunderstorm Warning	JKL	Johnson	75 min
Jul 12, 10:52 PM EDT	Severe Thunderstorm Warning	JKL	Leslie, Perry	38 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, 9.1 hours before the alert went out and 212 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1080 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 12, 10:53 AM EDT	Mesoscale Discussion	SPC	Adair, Allen, Anderson, Barren, Bath, Bell and 89 more	2 hr
Jul 12, 11:51 AM EDT	Mesoscale Discussion	SPC	Anderson, Bath, Boone, Bourbon, Boyd, Boyle and 39 more	114 min
Jul 12, 12:40 PM EDT	Severe Thunderstorm Watch	SPC	Bath, Bourbon, Boyd, Bracken, Breathitt, Campbell and 30 more	5 hr
Jul 12, 3:11 PM EDT	Mesoscale Discussion	SPC	Adair, Allen, Barren, Bath, Bell, Boyd and 48 more	2 hr
Jul 12, 3:30 PM EDT	Severe Thunderstorm Watch	SPC	Adair, Allen, Barren, Caldwell, Christian, Clinton and 15 more	6 hr
Jul 12, 6:14 PM EDT	Mesoscale Discussion	SPC	Boyd, Breathitt, Clay, Floyd, Harlan, Johnson and 9 more	2 hr
Jul 12, 7:12 PM EDT	Mesoscale Discussion	SPC	Bell, Clinton, Cumberland, Knox, McCreary, Wayne and 1 more	63 min
Jul 11, 9:04 PM EDT	Mesoscale Discussion	SPC	City of Chesapeake, City of Virginia Beach	86 min

Nearby

Severe Thunderstorm Watches in Virginia, 2003 Severe Thunderstorm Watches in West Virginia, 2003 Severe Thunderstorm Watches in Kentucky, 2003 Every 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.