Alert archive / Indiana / Mesoscale Discussions in 2020

Mesoscale Discussion 896

June 10, 202045 counties in Indiana; Branch County, Hillsdale County, Lenawee County, Michigan; 8 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2020, 11:22 AM EDT for 45 counties in Indiana; Branch County, Hillsdale County, Lenawee County, Michigan; 8 counties in Ohio. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued: Jun 10, 2020, 11:22 AM EDT (15:22 UTC)
Expired: Jun 10, 2020, 12:45 PM EDT
In force: 83 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...severe thunderstorm watch likely
Chance of a watch: 95%

All 56 counties

Adams County, IN, Allen County, IN, Bartholomew County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Clinton County, IN, Decatur County, IN, DeKalb County, IN, Delaware County, IN, Fayette County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jackson County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Kosciusko County, IN, LaGrange County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Morgan County, IN, Noble County, IN, Owen County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Steuben County, IN, Tipton County, IN, Wabash County, IN, Washington County, IN, Wayne County, IN, Wells County, IN, Whitley County, IN, Branch County, MI, Hillsdale County, MI, Lenawee County, MI, Defiance County, OH, Fulton County, OH, Henry County, OH, Mercer County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH

The radar

The Indianapolis radar (KIND), 76 km from the middle of the area, began a volume at 15:22 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 3.4 hours before the alert went out and 179 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: 346 J/kg
Mixed-layer CIN: -192 J/kg
Mixed-layer LCL: 774 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 116 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 10, 9:44 AM EDT	Mesoscale Discussion	SPC	Elkhart, Fulton, Jasper, Kosciusko, LaGrange, LaPorte and 8 more	91 min
Jun 10, 11:54 AM EDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Bartholomew, Blackford, Boone, Brown and 49 more	6 hr
Jun 10, 1:58 PM EDT	Mesoscale Discussion	SPC	Dearborn, Franklin, Ohio, Ripley, Switzerland, Union	92 min
Jun 10, 2:48 PM EDT	Severe Thunderstorm Watch	SPC	Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more	6 hr
Jun 10, 10:59 AM EDT	Severe Thunderstorm Watch	SPC	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 14 more	6 hr
Jun 10, 12:17 PM EDT	Mesoscale Discussion	SPC	Alcona, Alpena, Antrim, Arenac, Bay, Cheboygan and 15 more	58 min
Jun 10, 12:41 PM EDT	Severe Thunderstorm Watch	SPC	Alcona, Alpena, Arenac, Bay, Genesee, Gladwin and 19 more	7 hr
Jun 10, 3:03 PM EDT	Mesoscale Discussion	SPC	Branch, Calhoun, Eaton, Genesee, Hillsdale, Ingham and 13 more	87 min
Jun 10, 5:02 PM EDT	Mesoscale Discussion	SPC	Allen, Ashland, Auglaize, Butler, Champaign, Clark and 34 more	88 min
Jun 10, 6:35 PM EDT	Mesoscale Discussion	SPC	Ashland, Ashtabula, Athens, Belmont, Carroll, Columbiana and 32 more	85 min
Jun 10, 6:51 PM EDT	Severe Thunderstorm Watch	SPC	Ashtabula, Athens, Belmont, Carroll, Columbiana, Coshocton and 22 more	6 hr
Jun 10, 7:45 PM EDT	Mesoscale Discussion	SPC	Gallia, Lawrence	90 min

Nearby

Mesoscale Discussions in Indiana, 2020 Mesoscale Discussions in Ohio, 2020 Mesoscale Discussions in Michigan, 2020 Every mesoscale discussion in 2020

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.