Alert archive / Indiana / Mesoscale Discussions in 2015

Mesoscale Discussion 1019

June 14, 20154 states

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2015, 4:14 PM EDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 14, 2015, 4:14 PM EDT (20:14 UTC)
Expired: Jun 14, 2015, 6:15 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 98 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, DeKalb County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Johnson County, IN, Kosciusko County, IN, LaGrange County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Morgan County, IN, Noble County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Steuben County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wayne County, IN, Wells County, IN, Whitley County, IN, Hillsdale County, MI, Lenawee County, MI, Monroe County, MI, Wayne County, MI, Allen County, OH, Ashland County, OH, Ashtabula County, OH, Auglaize County, OH, Champaign County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Fulton County, OH, Geauga County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Miami County, OH, Morrow County, OH, Ottawa County, OH, Paulding County, OH, Portage County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Union County, OH, Van Wert County, OH, Wayne County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH, Crawford County, PA, Erie County, PA

The radar

The Northern Indiana radar (KIWX), 160 km from the middle of the area, began a volume at 20:16 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, 8.2 hours before the alert went out and 175 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: 547 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 927 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.4

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 14, 1:20 PM EDT	Mesoscale Discussion	SPC	Adams, Allen, Benton, Blackford, Boone, Carroll and 40 more	115 min
Jun 14, 1:46 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Blackford, Boone, Carroll, Cass and 46 more	7 hr
Jun 14, 7:59 PM EDT	Mesoscale Discussion	SPC	Adams, Fayette, Jay, Randolph, Wayne	61 min
Jun 14, 2:06 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 19 more	84 min
Jun 14, 7:08 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	52 min

Nearby

Mesoscale Discussions in Indiana, 2015 Mesoscale Discussions in Ohio, 2015 Mesoscale Discussions in Michigan, 2015 Every mesoscale discussion in 2015

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.