Alert archive / Indiana / Mesoscale Discussions in 2017

Mesoscale Discussion 1034

June 14, 201714 counties in Indiana

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2017, 6:31 PM EDT for 14 counties in Indiana. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued: Jun 14, 2017, 6:31 PM EDT (22:31 UTC)
Expired: Jun 14, 2017, 7:30 PM EDT
In force: 59 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Boone County, IN, Brown County, IN, Clinton County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Johnson County, IN, Marion County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Putnam County, IN, Tipton County, IN

The radar

The Indianapolis radar (KIND), 20 km from the middle of the area, began a volume at 22:31 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, 10.5 hours before the alert went out and 189 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: 971 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 1054 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 13 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
Jun 14, 1:40 PM EDT	Severe Thunderstorm Watch	SPC	Benton, Jasper, Lake, Newton, Porter	7 hr
Jun 14, 1:44 PM EDT	Mesoscale Discussion	SPC	Bartholomew, Blackford, Boone, Brown, Carroll, Cass and 51 more	3 hr
Jun 14, 4:02 PM EDT	Mesoscale Discussion	SPC	Allen, Benton, Carroll, Cass, Clinton, DeKalb and 25 more	118 min
Jun 14, 4:32 PM EDT	Severe Thunderstorm Watch	SPC	Cass, Elkhart, Fulton, Kosciusko, LaPorte, Marshall and 6 more	4 hr
Jun 14, 5:59 PM EDT	Mesoscale Discussion	SPC	Benton, Carroll, Cass, Elkhart, Fulton, Jasper and 13 more	91 min

Nearby

Mesoscale Discussions in Indiana, 2017 Every mesoscale discussion in 2017

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.