Alert archive / Virginia / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 542

June 14, 20037 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 14, 2003, 1:15 PM EDT for 7 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jun 14, 2003, 1:15 PM EDT (17:15 UTC)
Expired: Jun 14, 2003, 7:00 PM EDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 98 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, Wicomico County, MD, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Passaic County, NJ, Salem County, NJ, Somerset County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Queens County, NY, Richmond County, NY, Adams County, PA, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Delaware County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Northumberland County, PA, Philadelphia County, PA, Schuylkill County, PA, York County, PA, Arlington County, VA, Augusta County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Staunton, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fairfax County, VA, Fauquier County, VA, Frederick County, VA, Greene County, VA, King George County, VA, Loudoun County, VA, Madison County, VA, Orange County, VA, Page County, VA, Prince William County, VA, Rappahannock County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Berkeley County, WV, Jefferson County, WV

The radar

The Sterling radar (KLWX), 74 km from the middle of the area, began a volume at 17:19 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

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

Issued	Product	Office	Counties	Lasted
Jun 14, 1:43 PM EDT	Severe Thunderstorm Warning	LWX	Berkeley	47 min
Jun 14, 2:11 PM EDT	Severe Thunderstorm Warning	PHI	Morris	49 min
Jun 14, 2:26 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Passaic	34 min
Jun 14, 2:53 PM EDT	Severe Thunderstorm Warning	PHI	Morris	37 min
Jun 14, 2:55 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	65 min
Jun 14, 3:00 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	60 min
Jun 14, 3:35 PM EDT	Severe Thunderstorm Warning	LWX	Prince William, City of Manassas, City of Manassas Park	40 min
Jun 14, 3:54 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax, City of Fairfax	51 min
Jun 14, 3:55 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	50 min
Jun 14, 3:58 PM EDT	Severe Thunderstorm Warning	OKX	Nassau, Suffolk	47 min
Jun 14, 3:59 PM EDT	Flash Flood Warning	LWX	Fauquier	2 hr
Jun 14, 4:02 PM EDT	Tornado Warning	LWX	Fairfax	28 min
Jun 14, 4:06 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Somerset	39 min
Jun 14, 4:13 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	62 min
Jun 14, 4:15 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	45 min
Jun 14, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	66 min
Jun 14, 4:24 PM EDT	Severe Thunderstorm Warning	OKX	Queens	51 min
Jun 14, 4:55 PM EDT	Flash Flood Warning	LWX	Culpeper	3 hr
Jun 14, 5:11 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	34 min
Jun 14, 5:52 PM EDT	Severe Thunderstorm Warning	LWX	Shenandoah	38 min
Jun 14, 6:01 PM EDT	Flash Flood Warning	LWX	Stafford	3 hr
Jun 14, 6:04 PM EDT	Severe Thunderstorm Warning	LWX	Rockingham, City of Harrisonburg	56 min
Jun 14, 6:24 PM EDT	Severe Thunderstorm Warning	LWX	Warren	36 min
Jun 14, 6:30 PM EDT	Severe Thunderstorm Warning	LWX	Page	45 min
Jun 14, 6:47 PM EDT	Flash Flood Warning	LWX	Page, Rockingham	3 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 5.3 hours before the alert went out and 194 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: 1538 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 14, 12:01 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	119 min
Jun 14, 4:53 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle, Sussex	2 hr

Nearby

Severe Thunderstorm Watches in Virginia, 2003 Severe Thunderstorm Watches in Maryland, 2003 Severe Thunderstorm Watches in New Jersey, 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.