Alert archive / Pennsylvania / Mesoscale Discussions in 2005
Mesoscale Discussion 1983
The Storm Prediction Center issued this mesoscale discussion at Aug 14, 2005, 4:38 PM EDT for 6 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 14, 2005, 4:38 PM EDT (20:38 UTC)
- Expired
- Aug 14, 2005, 6:45 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 79 counties
Berkshire County, MA, Bristol County, MA, Dukes County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Suffolk County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH, Rockingham County, NH, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Hunterdon County, NJ, Morris County, NJ, Passaic County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Albany County, NY, Bronx County, NY, Broome County, NY, Chemung County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Greene County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Rensselaer County, NY, Richmond County, NY, Rockland County, NY, Suffolk County, NY, Sullivan County, NY, Tioga County, NY, Ulster County, NY, Westchester County, NY, Berks County, PA, Bradford County, PA, Carbon County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Juniata County, PA, Lackawanna County, PA, Lebanon County, PA, Lehigh County, PA, Luzerne County, PA, Lycoming County, PA, Mifflin County, PA, Monroe County, PA, Montour County, PA, Northampton County, PA, Northumberland County, PA, Perry County, PA, Pike County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Union County, PA, Wayne County, PA, Wyoming County, PA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI
The radar
The Brookhaven radar (KOKX), 88 km from the middle of the area, began a volume at 20:40 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
Brookhaven, NY (KOKX), launched 12:00Z, 8.6 hours before the alert went out and 88 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
- 1871 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 901 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
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 14, 12:08 PM EDT | Mesoscale Discussion | SPC | 2 hr | |
| Aug 14, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
Nearby
Mesoscale Discussions in Pennsylvania, 2005Mesoscale Discussions in New York, 2005Mesoscale Discussions in Massachusetts, 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.