Alert archive / Ohio / Mesoscale Discussions in 2013
Mesoscale Discussion 769
The Storm Prediction Center issued this mesoscale discussion at May 22, 2013, 2:08 PM EDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 22, 2013, 2:08 PM EDT (18:08 UTC)
- Expired
- May 22, 2013, 4:15 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 92 counties
Boyd County, KY, Carter County, KY, Elliott County, KY, Floyd County, KY, Greenup County, KY, Johnson County, KY, Lawrence County, KY, Magoffin County, KY, Martin County, KY, Pike County, KY, Ashland County, OH, Ashtabula County, OH, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Cuyahoga County, OH, Gallia County, OH, Geauga County, OH, Guernsey County, OH, Harrison County, OH, Hocking County, OH, Holmes County, OH, Jackson County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Lawrence County, OH, Licking County, OH, Lorain County, OH, Mahoning County, OH, Medina County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Portage County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Wayne County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Crawford County, PA, Erie County, PA, Fayette County, PA, Greene County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Boone County, WV, Braxton County, WV, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Hancock County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Logan County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Mingo County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tyler County, WV, Wayne County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Pittsburgh radar (KPBZ), 109 km from the middle of the area, began a volume at 18:10 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, 6.1 hours before the alert went out and 117 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
- 47 J/kg
- Mixed-layer CIN
- -186 J/kg
- Mixed-layer LCL
- 1178 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 100 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 |
|---|---|---|---|---|
| May 22, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | Bell, Boyd, Breathitt, Carter, Clay, Elliott and 15 more | 7 hr |
| May 22, 11:31 AM EDT | Mesoscale Discussion | SPC | Lackawanna, Monroe, Pike, Susquehanna, Wayne, Wyoming | 119 min |
| May 22, 12:58 PM EDT | Severe Thunderstorm Watch | SPC | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 10 hr |
| May 22, 3:41 PM EDT | Severe Thunderstorm Watch | SPC | Bradford, Susquehanna, Wayne | 7 hr |
| May 22, 3:53 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Centre, Cumberland, Dauphin, Franklin and 11 more | 67 min |
| May 22, 4:28 PM EDT | Mesoscale Discussion | SPC | Lackawanna, Sullivan, Susquehanna, Wayne, Wyoming | 92 min |
| May 22, 6:20 PM EDT | Mesoscale Discussion | SPC | Adams, Centre, Clinton, Cumberland, Dauphin, Franklin and 8 more | 85 min |
| May 22, 7:41 PM EDT | Mesoscale Discussion | SPC | Bradford, Lackawanna, Luzerne, Pike, Sullivan, Susquehanna and 3 more | 94 min |
Nearby
Mesoscale Discussions in Ohio, 2013Mesoscale Discussions in West Virginia, 2013Mesoscale Discussions in Pennsylvania, 2013Every mesoscale discussion in 2013
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.