Alert archive / Virginia / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 510

June 27, 20005 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 27, 2000, 3:00 PM EDT for 5 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 27, 2000, 3:00 PM EDT (19:00 UTC)
Expired
Jun 27, 2000, 8:00 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center
All 76 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Caroline County, MD, Cecil County, MD, Charles County, MD, City of Baltimore, MD, Dorchester 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, Somerset County, MD, Talbot County, MD, Wicomico County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Mercer County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Lancaster County, PA, Montgomery County, PA, Philadelphia County, PA, Albemarle County, VA, Amherst County, VA, Arlington County, VA, Buckingham County, VA, Caroline County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Richmond, VA, Culpeper County, VA, Cumberland County, VA, Essex County, VA, Fairfax County, VA, Fauquier County, VA, Fluvanna County, VA, Goochland County, VA, Greene County, VA, Hanover County, VA, King and Queen County, VA, King George County, VA, King William County, VA, Lancaster County, VA, Louisa County, VA, Madison County, VA, Middlesex County, VA, Nelson County, VA, New Kent County, VA, Northumberland County, VA, Orange County, VA, Powhatan County, VA, Prince William County, VA, Richmond County, VA, Spotsylvania County, VA, Stafford County, VA, Westmoreland County, VA

The radar

The Sterling radar (KLWX), 66 km from the middle of the area, began a volume at 19:03 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

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

IssuedProductOfficeCountiesLasted
Jun 27, 3:08 PM EDTSevere Thunderstorm WarningLWXCulpeper, Orange67 min
Jun 27, 3:15 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville45 min
Jun 27, 3:35 PM EDTSevere Thunderstorm WarningLWXFauquier, Rappahannock40 min
Jun 27, 3:45 PM EDTSevere Thunderstorm WarningLWXSpotsylvania45 min
Jun 27, 3:57 PM EDTFlash Flood WarningLWXAlbemarle, City of Charlottesville2 hr
Jun 27, 4:19 PM EDTSevere Thunderstorm WarningLWXKing George, Stafford41 min
Jun 27, 4:19 PM EDTSevere Thunderstorm WarningLWXCity of Fredericksburg41 min
Jun 27, 4:32 PM EDTSevere Thunderstorm WarningLWXSpotsylvania43 min
Jun 27, 4:35 PM EDTSevere Thunderstorm WarningLWXCharles40 min
Jun 27, 5:02 PM EDTSevere Thunderstorm WarningAKQPowhatan43 min
Jun 27, 5:06 PM EDTSevere Thunderstorm WarningPHITalbot39 min
Jun 27, 5:29 PM EDTSevere Thunderstorm WarningAKQEssex31 min
Jun 27, 6:06 PM EDTSevere Thunderstorm WarningLWXSaint Mary's39 min

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.0 hours before the alert went out and 58 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2000-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2000-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
111 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
1402 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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.

IssuedProductOfficeCountiesLasted
Jun 27, 2:15 PM EDTSevere Thunderstorm WatchSPCBergen, Essex, Hudson, Hunterdon, Middlesex, Morris and 3 more6 hr

Nearby

Severe Thunderstorm Watches in Virginia, 2000Severe Thunderstorm Watches in Maryland, 2000Severe Thunderstorm Watches in New Jersey, 2000Every severe thunderstorm watch in 2000

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.