Alert archive / Pennsylvania / Mesoscale Discussions in 2005
Mesoscale Discussion 2028
The Storm Prediction Center issued this mesoscale discussion at Aug 19, 2005, 8:16 AM EDT for 4 states. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2005, 8:16 AM EDT (12:16 UTC)
- Expired
- Aug 19, 2005, 9:15 AM EDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
All 36 counties
Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Niagara County, NY, Ashtabula County, OH, Carroll County, OH, Columbiana County, OH, Geauga County, OH, Harrison County, OH, Jefferson County, OH, Lake County, OH, Mahoning County, OH, Portage County, OH, Stark County, OH, Trumbull County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Crawford County, PA, Elk County, PA, Erie County, PA, Forest County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, McKean County, PA, Mercer County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Ohio County, WV
The radar
The Pittsburgh radar (KPBZ), 131 km from the middle of the area, began a volume at 12:16 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
Pittsburgh, PA (KPIT), launched 12:00Z, 0.3 hours before the alert went out and 140 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
- 364 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 642 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 19, 2:32 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more | 118 min |
| Aug 19, 4:05 PM EDT | Tornado Watch | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 6 more | 5 hr |
| Aug 19, 7:12 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 6 more | 93 min |
| Aug 19, 1:52 AM EDT | Mesoscale Discussion | SPC | Brown, Butler, Champaign, Clark, Clermont, Clinton and 7 more | 83 min |
| Aug 19, 1:49 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Clinton, Fayette and 8 more | 86 min |
Nearby
Mesoscale Discussions in Pennsylvania, 2005Mesoscale Discussions in Ohio, 2005Mesoscale Discussions in New York, 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.