Alert archive / Indiana / Mesoscale Discussions in 2016

Mesoscale Discussion 1214

July 8, 2016Wabash County, Illinois; 24 counties in Indiana; 9 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at Jul 8, 2016, 5:06 PM CDT for Wabash County, Illinois; 24 counties in Indiana; 9 counties in Kentucky. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued: Jul 8, 2016, 5:06 PM CDT (22:06 UTC)
Expired: Jul 8, 2016, 6:30 PM CDT
In force: 84 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

All 34 counties

Wabash County, IL, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Greene County, IN, Harrison County, IN, Jackson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Breckinridge County, KY, Bullitt County, KY, Daviess County, KY, Hancock County, KY, Hardin County, KY, Henderson County, KY, Jefferson County, KY, Meade County, KY, Oldham County, KY

The radar

The Louisville radar (KLVX), 81 km from the middle of the area, began a volume at 22:07 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

Lincoln, IL (KILX), launched 12:00Z, 10.1 hours before the alert went out and 253 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: 1584 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 799 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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 8, 1:59 PM CDT	Mesoscale Discussion	SPC	Alexander, Johnson, Massac, Pulaski, Union	2 hr
Jul 8, 9:08 AM CDT	Mesoscale Discussion	SPC	Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 13 more	67 min
Jul 8, 10:06 AM CDT	Severe Thunderstorm Watch	SPC	Clark, Crawford, Dearborn, Floyd, Harrison, Jefferson and 7 more	7 hr
Jul 8, 12:01 PM CDT	Mesoscale Discussion	SPC	Bell, Breathitt, Clay, Floyd, Harlan, Johnson and 10 more	59 min
Jul 8, 2:26 PM CDT	Severe Thunderstorm Watch	SPC	Fulton, Hickman	5 hr
Jul 8, 2:49 PM CDT	Mesoscale Discussion	SPC	Adair, Bell, Breathitt, Casey, Clark, Clay and 32 more	56 min
Jul 8, 4:42 PM CDT	Mesoscale Discussion	SPC	Carlisle, Fulton, Graves, Hickman	63 min

Nearby

Mesoscale Discussions in Indiana, 2016 Mesoscale Discussions in Kentucky, 2016 Mesoscale Discussions in Illinois, 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.