Alert archive / New Jersey / Mesoscale Discussions in 2005
Mesoscale Discussion 1972
The Storm Prediction Center issued this mesoscale discussion at Aug 12, 2005, 5:29 PM EDT for 15 counties in New Jersey; 13 counties in New York; 11 counties in Pennsylvania. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Aug 12, 2005, 5:29 PM EDT (21:29 UTC)
- Expired
- Aug 12, 2005, 7:00 PM EDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 39 counties
Bergen County, NJ, Burlington County, NJ, Essex 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, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, Dutchess 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, Suffolk County, NY, Ulster County, NY, Westchester County, NY, Berks County, PA, Bucks County, PA, Carbon County, PA, Lebanon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Northumberland County, PA, Philadelphia County, PA, Schuylkill County, PA
The radar
The Philadelphia radar (KDIX), 115 km from the middle of the area, began a volume at 21:29 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
Albany, NY (KALY), launched 12:00Z, 9.5 hours before the alert went out and 203 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
- 49 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 1257 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 129 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 12, 4:29 PM EDT | Mesoscale Discussion | SPC | Sussex | 2 hr |
| Aug 12, 11:36 AM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Chautauqua, Chemung, Schuyler and 4 more | 114 min |
| Aug 12, 1:55 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Broome, Chemung, Chenango, Delaware, Otsego and 5 more | 6 hr |
Nearby
Mesoscale Discussions in New Jersey, 2005Mesoscale Discussions in New York, 2005Mesoscale Discussions in Pennsylvania, 2005Every mesoscale discussion in 2005
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.