Alert archive / Ohio / Mesoscale Discussions in 2016

Mesoscale Discussion 1386

July 24, 201614 counties in Ohio; 5 counties in Pennsylvania; Brooke County, Hancock County, Ohio County, West Virginia

The Storm Prediction Center issued this mesoscale discussion at Jul 24, 2016, 1:03 PM EDT for 14 counties in Ohio; 5 counties in Pennsylvania; Brooke County, Hancock County, Ohio County, West Virginia. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jul 24, 2016, 1:03 PM EDT (17:03 UTC)
Expired: Jul 24, 2016, 3:30 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 5%

All 22 counties

Ashland County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Crawford County, OH, Harrison County, OH, Holmes County, OH, Jefferson County, OH, Mahoning County, OH, Portage County, OH, Richland County, OH, Stark County, OH, Tuscarawas County, OH, Wayne County, OH, Allegheny County, PA, Beaver County, PA, Butler County, PA, Lawrence County, PA, Washington County, PA, Brooke County, WV, Hancock County, WV, Ohio County, WV

The radar

The Cleveland radar (KCLE), 89 km from the middle of the area, began a volume at 17:07 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 (KAGC), launched 12:00Z, 5.1 hours before the alert went out and 114 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2153 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 24, 3:54 PM EDT	Mesoscale Discussion	SPC	Belmont, Champaign, Clark, Fairfield, Franklin, Guernsey and 11 more	3 hr

Nearby

Mesoscale Discussions in Ohio, 2016 Mesoscale Discussions in Pennsylvania, 2016 Mesoscale Discussions in West Virginia, 2016 Every mesoscale discussion in 2016

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.