Alert archive / Ohio / Mesoscale Discussions in 2014

Mesoscale Discussion 1472

July 26, 201427 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jul 26, 2014, 6:18 PM EDT for 27 counties in Ohio. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued: Jul 26, 2014, 6:18 PM EDT (22:18 UTC)
Expired: Jul 26, 2014, 7:15 PM EDT
In force: 57 min
Issued by: the Storm Prediction Center

All 27 counties

Athens County, OH, Champaign County, OH, Clark County, OH, Coshocton County, OH, Crawford County, OH, Delaware County, OH, Fairfield County, OH, Franklin County, OH, Guernsey County, OH, Hardin County, OH, Hocking County, OH, Holmes County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Pickaway County, OH, Richland County, OH, Tuscarawas County, OH, Union County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 122 km from the middle of the area, began a volume at 22:18 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.3 hours before the alert went out and 119 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: 1479 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 26, 2:41 PM EDT	Mesoscale Discussion	SPC	Allen, Ashland, Auglaize, Champaign, Clark, Clinton and 43 more	64 min
Jul 26, 3:29 PM EDT	Severe Thunderstorm Watch	SPC	Allen, Auglaize, Champaign, Clark, Darke, Delaware and 19 more	3 hr

Nearby

Mesoscale Discussions in Ohio, 2014 Every mesoscale discussion in 2014

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.