Alert archive / Virginia / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 462
The Storm Prediction Center issued this severe thunderstorm watch at Jun 18, 2000, 2:30 PM EDT for 5 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 18, 2000, 2:30 PM EDT (18:30 UTC)
- Expired
- Jun 18, 2000, 9:00 PM EDT
- In force
- 7 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, Somerset County, MD, Talbot County, MD, Wicomico County, MD, Worcester County, MD, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Mercer County, NJ, Salem County, NJ, Adams County, PA, Berks County, PA, Bucks County, PA, Chester County, PA, Cumberland County, PA, Dauphin County, PA, Delaware County, PA, Lancaster County, PA, Lebanon County, PA, Montgomery County, PA, Perry County, PA, Philadelphia County, PA, York County, PA, Accomack County, VA, Amelia County, VA, Arlington County, VA, Caroline County, VA, Charles City County, VA, Chesterfield County, VA, City of Alexandria, VA, City of Colonial Heights, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Hampton, VA, City of Hopewell, 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 Richmond, VA, City of Williamsburg, VA, Culpeper County, VA, Dinwiddie County, VA, Essex County, VA, Fairfax County, VA, Fauquier County, VA, Gloucester County, VA, Goochland 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, Mathews County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Nottoway County, VA, Orange County, VA, Powhatan County, VA, Prince George County, VA, Prince William County, VA, Richmond County, VA, Spotsylvania County, VA, Stafford County, VA, Surry County, VA, Sussex County, VA, Westmoreland County, VA, York County, VA
The radar
The Sterling radar (KLWX), 90 km from the middle of the area, began a volume at 18:32 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 2:44 PM EDT | Severe Thunderstorm Warning | AKQ | Essex, King and Queen, Middlesex | 26 min |
| Jun 18, 3:51 PM EDT | Tornado Warning | PHI | Delaware | 29 min |
| Jun 18, 4:15 PM EDT | Tornado Warning | PHI | Delaware, Philadelphia | 30 min |
| Jun 18, 4:54 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 36 min |
| Jun 18, 5:08 PM EDT | Severe Thunderstorm Warning | AKQ | Gloucester, Mathews | 37 min |
| Jun 18, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 46 min |
| Jun 18, 5:22 PM EDT | Severe Thunderstorm Warning | AKQ | York | 23 min |
| Jun 18, 6:53 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester | 32 min |
| Jun 18, 7:52 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 38 min |
| Jun 18, 8:30 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 30 min |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 6.5 hours before the alert went out and 135 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.
- Mixed-layer CAPE
- 2265 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
Nearby
Severe Thunderstorm Watches in Virginia, 2000Severe Thunderstorm Watches in Maryland, 2000Severe Thunderstorm Watches in Pennsylvania, 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.