Alert archive / Ohio / Mesoscale Discussions in 2014

Mesoscale Discussion 1239

July 1, 201417 counties in Indiana; 13 counties in Kentucky; 25 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2014, 2:56 AM EDT for 17 counties in Indiana; 13 counties in Kentucky; 25 counties in Ohio. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Jul 1, 2014, 2:56 AM EDT (06:56 UTC)
Expired: Jul 1, 2014, 4:00 AM EDT
In force: 64 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

All 55 counties

Bartholomew County, IN, Dearborn County, IN, Decatur County, IN, Fayette County, IN, Franklin County, IN, Henry County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Ohio County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Fleming County, KY, Gallatin County, KY, Grant County, KY, Harrison County, KY, Kenton County, KY, Mason County, KY, Nicholas County, KY, Pendleton County, KY, Robertson County, KY, Adams County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Logan County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Shelby County, OH, Union County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 47 km from the middle of the area, began a volume at 06:57 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 00:00Z, 6.9 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.

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: 1427 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1108 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

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
Jun 30, 8:47 PM EDT	Mesoscale Discussion	SPC	Fulton, Jasper, Lake, LaPorte, Marshall, Newton and 5 more	88 min
Jun 30, 9:44 PM EDT	Mesoscale Discussion	SPC	Jasper, Lake, LaPorte, Newton, Porter	31 min
Jun 30, 10:01 PM EDT	Severe Thunderstorm Watch	SPC	Benton, Jasper, Lake, Newton, Porter	6 hr
Jun 30, 10:06 PM EDT	Mesoscale Discussion	SPC	Elkhart, Saint Joseph	84 min
Jun 30, 10:47 PM EDT	Mesoscale Discussion	SPC	Lake	88 min
Jun 30, 11:11 PM EDT	Mesoscale Discussion	SPC	Boone, Carroll, Cass, Clinton, Fountain, Fulton and 16 more	2 hr
Jun 30, 11:22 PM EDT	Mesoscale Discussion	SPC	Lake, Newton	53 min
Jun 30, 11:35 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Blackford, Carroll, Cass, Clinton and 24 more	4 hr
Jul 1, 12:31 AM EDT	Mesoscale Discussion	SPC	Benton, Carroll, Cass, Elkhart, Fountain, Fulton and 14 more	89 min
Jul 1, 1:24 AM EDT	Mesoscale Discussion	SPC	Adams, Allen, DeKalb, Huntington, Jay, LaGrange and 4 more	66 min
Jul 1, 3:07 PM EDT	Severe Thunderstorm Watch	SPC	Gibson, Pike, Posey, Spencer, Vanderburgh, Warrick	7 hr
Jul 1, 5:43 PM EDT	Mesoscale Discussion	SPC	Clark, Crawford, Dearborn, Floyd, Franklin, Harrison and 10 more	92 min
Jul 1, 2:31 PM EDT	Mesoscale Discussion	SPC	Ballard, Carlisle, Fulton, Hickman, McCracken	59 min
Jul 1, 7:13 PM EDT	Mesoscale Discussion	SPC	Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 14 more	92 min
Jul 1, 1:44 AM EDT	Severe Thunderstorm Watch	SPC	Allen, Crawford, Defiance, Erie, Fulton, Hancock and 12 more	4 hr
Jul 1, 4:05 AM EDT	Mesoscale Discussion	SPC	Ashland, Champaign, Clark, Crawford, Delaware, Erie and 20 more	55 min
Jul 1, 3:22 PM EDT	Mesoscale Discussion	SPC	Carroll, Columbiana, Harrison, Jefferson, Mahoning, Stark and 1 more	53 min

Nearby

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