Alert archive / Pennsylvania / Mesoscale Discussions in 2007
Mesoscale Discussion 1111
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2007, 12:29 PM EDT for Hunterdon County, Sussex County, Warren County, New Jersey; 5 counties in New York; 26 counties in Pennsylvania. It was in force for 31 min.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2007, 12:29 PM EDT (16:29 UTC)
- Expired
- Jun 12, 2007, 1:00 PM EDT
- In force
- 31 min
- Issued by
- the Storm Prediction Center
All 34 counties
Hunterdon County, NJ, Sussex County, NJ, Warren County, NJ, Delaware County, NY, Greene County, NY, Orange County, NY, Sullivan County, NY, Ulster County, NY, Adams County, PA, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Delaware County, PA, Lackawanna County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Luzerne County, PA, Monroe County, PA, Montgomery County, PA, Montour County, PA, Northampton County, PA, Northumberland County, PA, Perry County, PA, Pike County, PA, Schuylkill County, PA, Susquehanna County, PA, Wayne County, PA, Wyoming County, PA, York County, PA
The radar
The Binghamton radar (KBGM), 128 km from the middle of the area, began a volume at 16:32 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 4.5 hours before the alert went out and 186 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
- 186 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1120 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 34 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 |
|---|---|---|---|---|
| Jun 12, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | Bergen, Burlington, Camden, Cumberland, Essex, Gloucester and 11 more | 7 hr |
| Jun 12, 4:23 PM EDT | Mesoscale Discussion | SPC | Bergen, Burlington, Camden, Cumberland, Essex, Gloucester and 11 more | 67 min |
| Jun 12, 7:02 PM EDT | Mesoscale Discussion | SPC | Chemung, Cortland, Hamilton, Herkimer, Lewis, Oneida and 3 more | 58 min |
Nearby
Mesoscale Discussions in Pennsylvania, 2007Mesoscale Discussions in New York, 2007Mesoscale Discussions in New Jersey, 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.