Alert archive / Indiana / Mesoscale Discussions in 2008

Mesoscale Discussion 1213

June 4, 200815 counties in Indiana; 6 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2008, 9:21 PM EDT for 15 counties in Indiana; 6 counties in Michigan. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Jun 4, 2008, 9:21 PM EDT (01:21 UTC)
Expired: Jun 4, 2008, 10:15 PM EDT
In force: 54 min
Issued by: the Storm Prediction Center

All 21 counties

Allen County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Kosciusko County, IN, LaGrange County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Whitley County, IN, Branch County, MI, Calhoun County, MI, Cass County, MI, Kalamazoo County, MI, Saint Joseph County, MI, Van Buren County, MI

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.4 hours before the alert went out and 217 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: 66 J/kg
Mixed-layer CIN: -213 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 4, 8:02 PM EDT	Tornado Watch	SPC	Benton, Carroll, Cass, Clinton, DeKalb, Elkhart and 24 more	8 hr
Jun 5, 2:38 AM EDT	Mesoscale Discussion	SPC	Elkhart, LaGrange, LaPorte, Porter, Saint Joseph	3 hr
Jun 5, 10:30 AM EDT	Mesoscale Discussion	SPC	Elkhart, LaGrange, Lake, LaPorte, Porter, Saint Joseph and 1 more	90 min
Jun 5, 7:46 AM EDT	Mesoscale Discussion	SPC	Isabella, Kent, Lake, Mason, Mecosta, Montcalm and 5 more	119 min
Jun 5, 9:03 AM EDT	Severe Thunderstorm Watch	SPC	Allegan, Arenac, Barry, Bay, Clare, Clinton and 34 more	4 hr
Jun 5, 12:56 PM EDT	Mesoscale Discussion	SPC	Arenac, Huron, Lapeer, Saint Clair, Sanilac, Tuscola	64 min

Nearby

Mesoscale Discussions in Indiana, 2008 Mesoscale Discussions in Michigan, 2008 Every mesoscale discussion in 2008

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.