Alert archive / New Jersey / Mesoscale Discussions in 2007
Mesoscale Discussion 1635
The Storm Prediction Center issued this mesoscale discussion at Aug 3, 2007, 3:33 PM EDT for 6 states. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Aug 3, 2007, 3:33 PM EDT (19:33 UTC)
- Expired
- Aug 3, 2007, 5:00 PM EDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 49 counties
Hampden County, MA, Baltimore County, MD, Carroll County, MD, Cecil County, MD, City of Baltimore, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, Dutchess County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Rockland County, NY, Westchester County, NY, Berks County, PA, Bucks County, PA, Chester County, PA, Delaware County, PA, Lancaster County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia 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, Culpeper County, VA, Fairfax County, VA, Fauquier County, VA, Loudoun County, VA, Prince William County, VA
The radar
The Philadelphia radar (KDIX), 95 km from the middle of the area, began a volume at 19:36 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.6 hours before the alert went out and 226 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
- 187 J/kg
- Mixed-layer CIN
- -193 J/kg
- Mixed-layer LCL
- 1432 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 6:01 PM EDT | Mesoscale Discussion | SPC | 59 min | |
| Aug 3, 8:43 AM EDT | Mesoscale Discussion | SPC | Albany, Fulton, Montgomery, Rensselaer, Saratoga, Schenectady and 3 more | 92 min |
| Aug 3, 12:56 PM EDT | Severe Thunderstorm Watch | SPC | Albany, Broome, Chemung, Chenango, Clinton, Columbia and 30 more | 9 hr |
Nearby
Mesoscale Discussions in New Jersey, 2007Mesoscale Discussions in Virginia, 2007Mesoscale Discussions in Pennsylvania, 2007Every mesoscale discussion in 2007
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.