Alert archive / Ohio / Mesoscale Discussions in 2015

Mesoscale Discussion 1015

June 14, 20154 states

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2015, 12:20 PM CDT for 4 states. It was in force for 115 min.

The area

The outline as issued.

The facts

Issued: Jun 14, 2015, 12:20 PM CDT (17:20 UTC)
Expired: Jun 14, 2015, 2:15 PM CDT
In force: 115 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

All 119 counties

Champaign County, IL, Clark County, IL, Coles County, IL, Douglas County, IL, Edgar County, IL, Vermilion County, IL, Adams County, IN, Allen County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, DeKalb County, IN, Delaware County, IN, Elkhart 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, Jasper County, IN, Jay County, IN, Kosciusko County, IN, LaGrange County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Noble County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Starke 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, White County, IN, Whitley County, IN, Branch County, MI, Calhoun County, MI, Hillsdale County, MI, Jackson County, MI, Lenawee County, MI, Monroe County, MI, Saint Joseph County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Ashland County, OH, Auglaize County, OH, Belmont County, OH, Carroll County, OH, Champaign County, OH, Clark County, OH, Columbiana County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Franklin County, OH, Fulton County, OH, Geauga County, OH, Guernsey County, OH, Hancock County, OH, Hardin County, OH, Harrison County, OH, Henry County, OH, Holmes County, OH, Huron County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Madison County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Miami County, OH, Morrow County, OH, Muskingum 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, Tuscarawas County, OH, Union County, OH, Van Wert County, OH, Wayne County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

The radar

The Northern Indiana radar (KIWX), 125 km from the middle of the area, began a volume at 17:23 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.

Severe Thunderstorm Watch 299Jun 14, 12:45 PM CDT

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.3 hours before the alert went out and 171 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, 12:46 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Blackford, Boone, Carroll, Cass and 46 more	7 hr
Jun 14, 3:14 PM CDT	Mesoscale Discussion	SPC	Adams, Allen, Blackford, Boone, Carroll, Cass and 40 more	2 hr
Jun 14, 6:59 PM CDT	Mesoscale Discussion	SPC	Adams, Fayette, Jay, Randolph, Wayne	61 min

Nearby

Mesoscale Discussions in Ohio, 2015 Mesoscale Discussions in Indiana, 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.