Alert archive / Virginia / Tornado Watches in 2024

Tornado Watch 615

August 8, 20244 states

The Storm Prediction Center issued this tornado watch at Aug 8, 2024, 6:37 PM EDT for 4 states. It was in force for 12 hr.

The area

The outline as issued.

The facts

Issued: Aug 8, 2024, 6:37 PM EDT (22:37 UTC)
Expired: Aug 9, 2024, 7:00 AM EDT
In force: 12 hr
Issued by: the Storm Prediction Center
Largest hail expected: 0.5 in
Strongest gust expected: 50 kt

All 152 counties

Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Cecil County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Saint Mary's County, MD, Washington County, MD, Beaufort County, NC, Bertie County, NC, Camden County, NC, Carteret County, NC, Caswell County, NC, Chowan County, NC, Craven County, NC, Currituck County, NC, Dare County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, Northampton County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Person County, NC, Pitt County, NC, Tyrrell County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Accomack County, VA, Albemarle County, VA, Amelia County, VA, Amherst County, VA, Appomattox County, VA, Arlington County, VA, Augusta County, VA, Brunswick County, VA, Buckingham County, VA, Campbell County, VA, Caroline County, VA, Charles City County, VA, Charlotte County, VA, Chesterfield County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Chesapeake, VA, City of Colonial Heights, VA, City of Danville, VA, City of Emporia, VA, City of Fairfax, VA, City of Falls Church, VA, City of Franklin, VA, City of Fredericksburg, VA, City of Hampton, VA, City of Harrisonburg, VA, City of Hopewell, VA, City of Lynchburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Newport News, VA, City of Norfolk, VA, City of Petersburg, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Richmond, VA, City of Staunton, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Waynesboro, VA, City of Williamsburg, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Cumberland County, VA, Dinwiddie County, VA, Essex County, VA, Fairfax County, VA, Fauquier County, VA, Fluvanna County, VA, Frederick County, VA, Gloucester County, VA, Goochland County, VA, Greene County, VA, Greensville County, VA, Halifax County, VA, Hanover County, VA, Henrico County, VA, Isle of Wight County, VA, James City County, VA, King and Queen County, VA, King George County, VA, King William County, VA, Lancaster County, VA, Loudoun County, VA, Louisa County, VA, Lunenburg County, VA, Madison County, VA, Mathews County, VA, Mecklenburg County, VA, Middlesex County, VA, Nelson County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Nottoway County, VA, Orange County, VA, Page County, VA, Pittsylvania County, VA, Powhatan County, VA, Prince Edward County, VA, Prince George County, VA, Prince William County, VA, Rappahannock County, VA, Richmond County, VA, Rockingham County, VA, Shenandoah County, VA, Southampton County, VA, Spotsylvania County, VA, Stafford County, VA, Surry County, VA, Sussex County, VA, Warren County, VA, Westmoreland County, VA, York County, VA, Berkeley County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Morgan County, WV

The radar

The Norfolk radar (KAKQ), 104 km from the middle of the area, began a volume at 22:37 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 50%
One or more EF2 to EF5 tornadoes: 20%
Ten or more severe wind reports: 5%
One or more gusts of 65 knots or more: 5%
Ten or more severe hail reports: 5%
One or more hailstones of 2 inches or more: 5%
Six or more combined severe hail and wind reports: 20%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Aug 8, 6:46 PM EDT	Tornado Warning	AKQ	Caroline, Hanover	23 min
Aug 8, 6:55 PM EDT	Tornado Warning	RAH	Franklin, Vance, Warren	35 min
Aug 8, 7:04 PM EDT	Tornado Warning	AKQ	Caroline	26 min
Aug 8, 7:22 PM EDT	Tornado Warning	RAH	Franklin, Warren	23 min
Aug 8, 7:23 PM EDT	Tornado Warning	LWX	Spotsylvania, Stafford, City of Fredericksburg	22 min
Aug 8, 7:41 PM EDT	Tornado Warning	LWX	Spotsylvania	17 min
Aug 8, 7:44 PM EDT	Tornado Warning	RAH	Warren	31 min
Aug 8, 7:50 PM EDT	Tornado Warning	LWX	Fauquier, Stafford	25 min
Aug 8, 7:52 PM EDT	Tornado Warning	AKQ	Mecklenburg	38 min
Aug 8, 8:00 PM EDT	Tornado Warning	LWX	Prince William, Stafford	30 min
Aug 8, 8:13 PM EDT	Tornado Warning Tornado observed	LWX	Fauquier	18 min
Aug 8, 8:14 PM EDT	Tornado Warning	LWX	Fauquier	18 min
Aug 8, 8:15 PM EDT	Tornado Warning	AKQ	Northampton	30 min
Aug 8, 8:23 PM EDT	Flash Flood Warning	AKQ	Bertie, Hertford, Northampton	3 hr
Aug 8, 8:26 PM EDT	Tornado Warning	AKQ	Bertie	16 min
Aug 8, 9:07 PM EDT	Flash Flood Warning	LWX	Clarke, Fauquier, Frederick, Loudoun, Rappahannock, Warren and 1 more	6 hr
Aug 8, 9:07 PM EDT	Tornado Warning	LWX	Clarke, Fauquier, Loudoun	23 min
Aug 8, 9:09 PM EDT	Flash Flood Warning	AKQ	Lunenburg, Mecklenburg	3 hr
Aug 8, 9:26 PM EDT	Tornado Warning Tornado observed	LWX	Clarke, Frederick, Loudoun	19 min
Aug 8, 9:28 PM EDT	Flash Flood Warning	AKQ	Cumberland, Prince Edward	5 hr
Aug 8, 9:40 PM EDT	Tornado Warning	LWX	Clarke, Fauquier, Loudoun	35 min
Aug 8, 9:47 PM EDT	Tornado Warning	AKQ	Chesterfield, Powhatan	10 min
Aug 8, 10:38 PM EDT	Tornado Warning	LWX	Berkeley, Jefferson	37 min
Aug 8, 10:48 PM EDT	Flash Flood Warning	LWX	Albemarle, Augusta, Nelson, City of Staunton, City of Waynesboro	7 hr
Aug 8, 10:52 PM EDT	Flash Flood Warning	LWX	Greene, Madison, Page, Rappahannock, Rockingham, Warren	10 hr
Aug 8, 11:53 PM EDT	Flash Flood Warning	LWX	Allegany, Washington	3 hr
Aug 9, 1:50 AM EDT	Flash Flood Warning	LWX	Baltimore, Carroll, Frederick, Howard	3 hr
Aug 9, 3:52 AM EDT	Flash Flood Warning	LWX	Baltimore, Carroll	8 hr
Aug 9, 4:19 AM EDT	Flash Flood Warning	LWX	Frederick, Page, Rockingham, Shenandoah, Warren	3 hr
Aug 9, 4:23 AM EDT	Tornado Warning	AKQ	Caroline	37 min
Aug 9, 4:39 AM EDT	Tornado Warning	LWX	Charles	17 min
Aug 9, 4:47 AM EDT	Tornado Warning	AKQ	Caroline, Essex, Hanover, Henrico, King and Queen, King William	28 min
Aug 9, 5:17 AM EDT	Flash Flood Warning	LWX	Frederick	2 hr
Aug 9, 5:39 AM EDT	Tornado Warning	AKQ	Caroline	21 min
Aug 9, 5:45 AM EDT	Tornado Warning	LWX	Charles	30 min
Aug 9, 6:13 AM EDT	Tornado Warning	LWX	Charles	17 min
Aug 9, 6:22 AM EDT	Tornado Warning	LWX	Arlington, Fairfax, Prince William, City of Alexandria	23 min
Aug 9, 6:31 AM EDT	Flash Flood Warning Considerable damage threat	LWX	Greene, Madison, Page, Rockingham	3 hr
Aug 9, 6:35 AM EDT	Tornado Warning	AKQ	Isle of Wight, City of Suffolk	25 min
Aug 9, 6:37 AM EDT	Flash Flood Warning	LWX	Montgomery	2 hr
Aug 9, 7:00 AM EDT	Flash Flood Warning	LWX	Montgomery	4 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.6 hours before the alert went out and 118 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: 243 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 494 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 158 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
Aug 7, 10:34 PM EDT	Tornado Watch	SPC	Beaufort, Carteret, Craven, Dare, Duplin, Greene and 9 more	4 hr
Aug 8, 2:19 AM EDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Carteret, Chowan, Craven, Dare and 18 more	116 min
Aug 8, 2:49 AM EDT	Tornado Watch	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 32 more	10 hr
Aug 8, 5:47 AM EDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Camden, Carteret, Chatham, Chowan and 37 more	118 min
Aug 8, 8:59 AM EDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 32 more	91 min
Aug 8, 11:18 AM EDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Carteret, Craven, Duplin, Edgecombe and 18 more	117 min
Aug 8, 12:43 PM EDT	Tornado Watch	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 31 more	6 hr
Aug 8, 3:12 PM EDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 23 more	2 hr

Nearby

Tornado Watches in Virginia, 2024 Tornado Watches in North Carolina, 2024 Tornado Watches in Maryland, 2024 Every tornado watch in 2024

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.