Alert archive / New Jersey / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 667
The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2003, 2:55 PM EDT for 6 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2003, 2:55 PM EDT (18:55 UTC)
- Expired
- Jul 7, 2003, 8:00 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 62 counties
New Castle County, DE, Anne Arundel County, MD, Baltimore County, MD, Caroline County, MD, Carroll County, MD, Cecil County, MD, City of Baltimore, 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, Talbot County, MD, Bergen County, NJ, Camden County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Passaic County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Richmond County, NY, Rockland County, NY, Westchester County, NY, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA, Pike County, PA, York County, PA, Arlington County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Manassas, VA, City of Manassas Park, VA, Fairfax County, VA, Fauquier County, VA, Loudoun County, VA, Prince William County, VA, Rappahannock County, VA
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 53 min |
| Jul 7, 5:46 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 44 min |
| Jul 7, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester | 36 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.9 hours before the alert went out and 39 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
- 38 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 1117 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 6:29 PM EDT | Mesoscale Discussion | SPC | 61 min | |
| Jul 7, 2:23 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle, Sussex | 67 min |
| Jul 7, 12:10 PM EDT | Mesoscale Discussion | SPC | Essex, Hunterdon, Morris, Passaic, Somerset, Sussex and 1 more | 65 min |
| Jul 7, 2:56 PM EDT | Mesoscale Discussion | SPC | Allegheny, Beaver, Butler, Crawford, Greene, Lawrence and 3 more | 94 min |
| Jul 7, 3:10 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 14 more | 6 hr |
| Jul 7, 6:52 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 12 more | 53 min |
Nearby
Severe Thunderstorm Watches in New Jersey, 2003Severe Thunderstorm Watches in Maryland, 2003Severe Thunderstorm Watches in Pennsylvania, 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.