Alert archive / Ohio / Mesoscale Discussions in 2007
Mesoscale Discussion 597
The Storm Prediction Center issued this mesoscale discussion at Apr 26, 2007, 3:26 PM EDT for 17 counties in Ohio; 12 counties in Pennsylvania; 6 counties in West Virginia. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2007, 3:26 PM EDT (19:26 UTC)
- Expired
- Apr 26, 2007, 4:30 PM EDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 35 counties
Belmont County, OH, Carroll County, OH, Columbiana County, OH, Cuyahoga County, OH, Geauga County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Mahoning County, OH, Medina County, OH, Monroe County, OH, Portage County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Wayne County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Crawford County, PA, Fayette County, PA, Greene County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Wetzel County, WV
The radar
The Pittsburgh radar (KPBZ), 32 km from the middle of the area, began a volume at 19:26 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
Pittsburgh, PA (KPIT), launched 12:00Z, 7.4 hours before the alert went out and 48 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 685 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 156 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 |
|---|---|---|---|---|
| Apr 26, 1:51 PM EDT | Mesoscale Discussion | SPC | Adams, Allen, Auglaize, Brown, Butler, Champaign and 33 more | 54 min |
| Apr 26, 2:26 PM EDT | Tornado Watch | SPC | Adams, Allen, Ashland, Auglaize, Brown, Butler and 52 more | 8 hr |
| Apr 26, 3:58 PM EDT | Tornado Watch | SPC | Ashtabula, Belmont, Carroll, Columbiana, Coshocton, Cuyahoga and 18 more | 6 hr |
| Apr 26, 6:42 PM EDT | Mesoscale Discussion | SPC | Adams, Allen, Ashland, Auglaize, Brown, Butler and 63 more | 93 min |
Nearby
Mesoscale Discussions in Ohio, 2007Mesoscale Discussions in Pennsylvania, 2007Mesoscale Discussions in West Virginia, 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.