Alert archive / Ohio / Mesoscale Discussions in 2014

Mesoscale Discussion 1469

July 26, 201412 counties in Indiana; 49 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jul 26, 2014, 2:41 PM EDT for 12 counties in Indiana; 49 counties in Ohio. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Jul 26, 2014, 2:41 PM EDT (18:41 UTC)
Expired: Jul 26, 2014, 3:45 PM EDT
In force: 64 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

All 61 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Huntington County, IN, Jay County, IN, Kosciusko County, IN, Noble County, IN, Randolph County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Allen County, OH, Ashland County, OH, Auglaize County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Coshocton County, OH, Crawford County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Highland County, OH, Hocking County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Muskingum County, OH, Paulding County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Putnam County, OH, Richland County, OH, Ross County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Vinton County, OH, Warren County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 113 km from the middle of the area, began a volume at 18:43 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.7 hours before the alert went out and 111 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, 3:29 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Huntington, Jay, Wells, Whitley	3 hr
Jul 26, 4:20 PM EDT	Mesoscale Discussion	SPC	Clay, Daviess, Gibson, Greene, Knox, Owen and 4 more	115 min
Jul 26, 6:40 PM EDT	Severe Thunderstorm Watch	SPC	Bartholomew, Boone, Brown, Clark, Clay, Clinton and 47 more	5 hr
Jul 26, 6:18 PM EDT	Mesoscale Discussion	SPC	Athens, Champaign, Clark, Coshocton, Crawford, Delaware and 21 more	57 min

Nearby

Mesoscale Discussions in Ohio, 2014 Mesoscale Discussions in Indiana, 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.