Alert archive / Virginia / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 799
The Storm Prediction Center issued this severe thunderstorm watch at Jul 22, 2003, 1:45 PM EDT for 6 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 22, 2003, 1:45 PM EDT (17:45 UTC)
- Expired
- Jul 22, 2003, 7:00 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 86 counties
Kent County, DE, New Castle County, DE, Sussex County, DE, Calvert County, MD, Caroline County, MD, Dorchester County, MD, Kent County, MD, Queen Anne's County, MD, Saint Mary's County, MD, Somerset County, MD, Talbot County, MD, Wicomico County, MD, Worcester County, MD, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cape May 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, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Westchester County, NY, Bucks County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA, Accomack County, VA, Brunswick County, VA, Charles City County, VA, Chesterfield County, VA, City of Chesapeake, VA, City of Colonial Heights, VA, City of Emporia, VA, City of Franklin, VA, City of Hampton, VA, City of Hopewell, 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 Suffolk, VA, City of Williamsburg, VA, Dinwiddie County, VA, Essex County, VA, Gloucester County, VA, Greensville County, VA, Henrico County, VA, Isle of Wight County, VA, James City County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Mathews County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Prince George County, VA, Richmond County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, Westmoreland County, VA, York County, VA
Warnings issued inside it
30 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 50 min |
| Jul 22, 2:13 PM EDT | Severe Thunderstorm Warning | OKX | Hudson, Union | 47 min |
| Jul 22, 2:22 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden | 38 min |
| Jul 22, 2:39 PM EDT | Severe Thunderstorm Warning | AKQ | Prince George, Surry, Sussex | 31 min |
| Jul 22, 2:41 PM EDT | Severe Thunderstorm Warning | OKX | Kings, New York, Queens, Richmond | 49 min |
| Jul 22, 3:26 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 49 min |
| Jul 22, 3:26 PM EDT | Severe Thunderstorm Warning | AKQ | Surry | 29 min |
| Jul 22, 3:35 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 40 min |
| Jul 22, 3:39 PM EDT | Severe Thunderstorm Warning | AKQ | King and Queen, Middlesex, Richmond | 31 min |
| Jul 22, 3:43 PM EDT | Severe Thunderstorm Warning | AKQ | Gloucester, York | 32 min |
| Jul 22, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 45 min |
| Jul 22, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Somerset | 42 min |
| Jul 22, 4:04 PM EDT | Severe Thunderstorm Warning | OKX | Essex, Union | 41 min |
| Jul 22, 4:07 PM EDT | Severe Thunderstorm Warning | AKQ | Accomack | 43 min |
| Jul 22, 4:17 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 43 min |
| Jul 22, 4:20 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Hudson, Passaic | 40 min |
| Jul 22, 4:28 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 32 min |
| Jul 22, 4:30 PM EDT | Severe Thunderstorm Warning | OKX | Richmond | 45 min |
| Jul 22, 4:39 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 31 min |
| Jul 22, 4:45 PM EDT | Flash Flood Warning | PHI | Middlesex | 105 min |
| Jul 22, 4:49 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 56 min |
| Jul 22, 4:51 PM EDT | Flash Flood Warning | OKX | Hudson | 84 min |
| Jul 22, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 38 min |
| Jul 22, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 41 min |
| Jul 22, 5:56 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 49 min |
| Jul 22, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 38 min |
| Jul 22, 6:42 PM EDT | Severe Thunderstorm Warning | AKQ | Amelia, Chesterfield | 33 min |
| Jul 22, 6:43 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 47 min |
| Jul 22, 6:55 PM EDT | Tornado Warning | AKQ | Hanover, King William, New Kent | 30 min |
| Jul 22, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 61 min |
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, 5.8 hours before the alert went out and 81 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
- 2012 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 561 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 8:40 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr | |
| Jul 21, 10:33 PM EDT | Mesoscale Discussion | SPC | 87 min | |
| Jul 22, 1:19 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle, Sussex | 86 min |
| Jul 22, 7:45 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle, Sussex | 90 min |
| Jul 22, 5:45 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more | 5 hr |
| Jul 22, 3:16 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 2 more | 59 min |
Nearby
Severe Thunderstorm Watches in Virginia, 2003Severe Thunderstorm Watches in New Jersey, 2003Severe Thunderstorm Watches in Maryland, 2003Every 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.