Alert archive / Virginia / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 274

May 22, 20015 states

The Storm Prediction Center issued this severe thunderstorm watch at May 22, 2001, 1:30 PM EDT for 5 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 22, 2001, 1:30 PM EDT (17:30 UTC)
Expired: May 22, 2001, 8:00 PM EDT
In force: 7 hr
Issued by: the Storm Prediction Center

All 137 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Caroline County, MD, Carroll County, MD, Cecil County, MD, Charles County, MD, City of Baltimore, MD, Dorchester County, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Kent County, MD, Montgomery County, MD, Prince George's County, MD, Queen Anne's County, MD, Saint Mary's County, MD, Talbot County, MD, Washington County, MD, Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ, Salem County, NJ, Albemarle County, VA, Alleghany County, VA, Amelia County, VA, Amherst County, VA, Appomattox County, VA, Arlington County, VA, Augusta County, VA, Bath County, VA, Bedford County, VA, Bland County, VA, Botetourt County, VA, Brunswick County, VA, Buckingham County, VA, Campbell County, VA, Caroline County, VA, Carroll County, VA, Charles City County, VA, Charlotte County, VA, Chesterfield County, VA, City of Alexandria, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Colonial Heights, VA, City of Covington, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Galax, VA, City of Harrisonburg, VA, City of Hopewell, VA, City of Lexington, VA, City of Lynchburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Martinsville, VA, City of Petersburg, VA, City of Radford, VA, City of Richmond, 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, Dinwiddie County, VA, Essex County, VA, Fairfax County, VA, Fauquier County, VA, Floyd County, VA, Fluvanna County, VA, Franklin County, VA, Frederick County, VA, Giles County, VA, Goochland County, VA, Grayson County, VA, Greene County, VA, Halifax County, VA, Hanover County, VA, Henrico County, VA, Henry County, VA, Highland County, VA, King and Queen County, VA, King George County, VA, King William County, VA, Loudoun County, VA, Louisa County, VA, Lunenburg County, VA, Madison County, VA, Mecklenburg County, VA, Montgomery County, VA, Nelson County, VA, New Kent County, VA, Northumberland County, VA, Nottoway County, VA, Orange County, VA, Page County, VA, Patrick County, VA, Pittsylvania County, VA, Powhatan County, VA, Prince Edward County, VA, Prince George County, VA, Prince William County, VA, Pulaski County, VA, Rappahannock County, VA, Richmond County, VA, Roanoke County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Smyth County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Washington County, VA, Westmoreland County, VA, Wythe County, VA, Berkeley County, WV, Grant County, WV, Greenbrier County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mercer County, WV, Monroe County, WV, Morgan County, WV, Pendleton County, WV, Pocahontas County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 147 km from the middle of the area, began a volume at 17:32 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

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

Issued	Product	Office	Counties	Lasted
May 22, 2:02 PM EDT	Flash Flood Warning	RNK	Bland, Giles	118 min
May 22, 2:30 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Smyth, Wythe	60 min
May 22, 2:38 PM EDT	Flash Flood Warning	RNK	Wythe	112 min
May 22, 2:42 PM EDT	Severe Thunderstorm Warning	RNK	Mercer	48 min
May 22, 2:49 PM EDT	Severe Thunderstorm Warning	AKQ	Louisa	26 min
May 22, 2:53 PM EDT	Severe Thunderstorm Warning	RNK	Summers	67 min
May 22, 2:54 PM EDT	Severe Thunderstorm Warning	LWX	Spotsylvania	51 min
May 22, 2:57 PM EDT	Severe Thunderstorm Warning	RNK	Pulaski	63 min
May 22, 3:03 PM EDT	Severe Thunderstorm Warning	RNK	Grayson	42 min
May 22, 3:03 PM EDT	Flash Flood Warning	RNK	Monroe, Summers	117 min
May 22, 3:06 PM EDT	Severe Thunderstorm Warning	RNK	Giles	54 min
May 22, 3:14 PM EDT	Severe Thunderstorm Warning	RNK	Greenbrier	61 min
May 22, 3:18 PM EDT	Severe Thunderstorm Warning	RNK	Monroe	57 min
May 22, 3:21 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery, City of Radford	54 min
May 22, 3:26 PM EDT	Flash Flood Warning	RNK	Craig	3 hr
May 22, 3:26 PM EDT	Severe Thunderstorm Warning	RNK	Craig	64 min
May 22, 3:39 PM EDT	Severe Thunderstorm Warning	RNK	Roanoke, City of Roanoke	66 min
May 22, 3:39 PM EDT	Severe Thunderstorm Warning	RNK	City of Salem	66 min
May 22, 3:50 PM EDT	Severe Thunderstorm Warning	RNK	Carroll	55 min
May 22, 3:51 PM EDT	Flash Flood Warning	RNK	Alleghany, City of Covington	114 min
May 22, 3:54 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Botetourt, City of Covington	66 min
May 22, 3:59 PM EDT	Severe Thunderstorm Warning	RNK	Floyd	46 min
May 22, 4:13 PM EDT	Severe Thunderstorm Warning	RNK	Rockbridge, City of Lexington	62 min
May 22, 4:13 PM EDT	Severe Thunderstorm Warning	RNK	City of Buena Vista	62 min
May 22, 4:19 PM EDT	Severe Thunderstorm Warning	RNK	Bath	41 min
May 22, 4:23 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	67 min
May 22, 4:26 PM EDT	Severe Thunderstorm Warning	RNK	Bedford	64 min
May 22, 4:26 PM EDT	Flash Flood Warning	RLX	Pocahontas	94 min
May 22, 4:41 PM EDT	Severe Thunderstorm Warning	RNK	Amherst	64 min
May 22, 4:52 PM EDT	Severe Thunderstorm Warning	LWX	Augusta, Nelson	23 min
May 22, 4:52 PM EDT	Severe Thunderstorm Warning	LWX	City of Staunton	23 min
May 22, 4:52 PM EDT	Severe Thunderstorm Warning	LWX	City of Waynesboro	23 min
May 22, 5:09 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	36 min
May 22, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	Albemarle, Greene, Orange	45 min
May 22, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	City of Charlottesville	45 min
May 22, 5:51 PM EDT	Severe Thunderstorm Warning	AKQ	Fluvanna, Louisa	24 min
May 22, 5:57 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	33 min
May 22, 6:09 PM EDT	Severe Thunderstorm Warning	AKQ	Goochland	21 min
May 22, 6:18 PM EDT	Severe Thunderstorm Warning	AKQ	Essex, Richmond	12 min
May 22, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Fauquier, Prince William, Spotsylvania, Stafford, City of Fredericksburg	40 min
May 22, 6:29 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	16 min
May 22, 6:33 PM EDT	Severe Thunderstorm Warning	AKQ	Westmoreland	12 min
May 22, 6:46 PM EDT	Tornado Warning	LWX	Prince William	14 min
May 22, 6:50 PM EDT	Tornado Warning	AKQ	Caroline	25 min
May 22, 6:58 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	17 min
May 22, 7:06 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	24 min
May 22, 7:06 PM EDT	Severe Thunderstorm Warning	LWX	King George	24 min
May 22, 7:19 PM EDT	Severe Thunderstorm Warning	LWX	Arlington, City of Alexandria	26 min
May 22, 7:27 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	63 min
May 22, 7:27 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	63 min
May 22, 7:35 PM EDT	Severe Thunderstorm Warning	PHI	Talbot	55 min
May 22, 7:39 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	36 min
May 22, 7:46 PM EDT	Tornado Warning	LWX	Calvert, Saint Mary's	24 min
May 22, 7:48 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	57 min
May 22, 8:00 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's	60 min

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 5.5 hours before the alert went out and 85 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: 133 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 624 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 22, 7:15 PM EDT	Tornado Watch	SPC	Kent, Sussex	4 hr
May 22, 11:15 AM EDT	Severe Thunderstorm Watch	SPC	City of Danville	6 hr

Nearby

Severe Thunderstorm Watches in Virginia, 2001 Severe Thunderstorm Watches in Maryland, 2001 Severe Thunderstorm Watches in West Virginia, 2001 Every severe thunderstorm watch in 2001

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.