Alert archive / Indiana / Mesoscale Discussions in 2006

Mesoscale Discussion 964

May 24, 200630 counties in Illinois; 58 counties in Indiana; Berrien County, Cass County, Michigan

The Storm Prediction Center issued this mesoscale discussion at May 24, 2006, 4:26 PM CDT for 30 counties in Illinois; 58 counties in Indiana; Berrien County, Cass County, Michigan. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: May 24, 2006, 4:26 PM CDT (21:26 UTC)
Expired: May 24, 2006, 6:00 PM CDT
In force: 94 min
Issued by: the Storm Prediction Center

All 90 counties

Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Cook County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Jasper County, IL, Kankakee County, IL, Kendall County, IL, Lawrence County, IL, Livingston County, IL, Macon County, IL, McLean County, IL, Moultrie County, IL, Piatt County, IL, Richland County, IL, Shelby County, IL, Vermilion County, IL, Will County, IL, Bartholomew County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Delaware County, IN, Elkhart County, IN, Fountain County, IN, Fulton 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, Jasper County, IN, Johnson County, IN, Knox County, IN, Kosciusko County, IN, Lake County, IN, LaPorte County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Noble County, IN, Owen County, IN, Parke County, IN, Porter County, IN, Pulaski County, IN, Putnam County, IN, Rush County, IN, Saint Joseph County, IN, Shelby County, IN, Starke County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wells County, IN, White County, IN, Whitley County, IN, Berrien County, MI, Cass County, MI

The radar

The Indianapolis radar (KIND), 106 km from the middle of the area, began a volume at 21:29 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

Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 102 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1421 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
May 24, 11:27 AM CDT	Mesoscale Discussion	SPC	Adams, Hancock	2 hr
May 24, 12:25 PM CDT	Tornado Watch	SPC	Adams, Brown, Calhoun, Greene, Pike	7 hr
May 24, 1:37 PM CDT	Mesoscale Discussion	SPC	Carroll, Jo Daviess, Rock Island, Stephenson, Whiteside	83 min
May 24, 2:23 PM CDT	Mesoscale Discussion	SPC	Adams, Bond, Brown, Calhoun, Cass, Champaign and 37 more	97 min
May 24, 2:46 PM CDT	Tornado Watch	SPC	Bond, Boone, Bureau, Carroll, Cass, Champaign and 63 more	7 hr
May 24, 4:42 PM CDT	Severe Thunderstorm Watch	SPC	Cook, DuPage, Iroquois, Kankakee, Will	5 hr
May 24, 6:18 PM CDT	Severe Thunderstorm Watch	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 15 more	7 hr
May 24, 6:24 PM CDT	Mesoscale Discussion	SPC	McHenry	96 min
May 24, 6:54 PM CDT	Severe Thunderstorm Watch	SPC	Kane, Lake, McHenry	4 hr
May 24, 5:54 PM CDT	Severe Thunderstorm Watch	SPC	Bartholomew, Boone, Brown, Clay, Daviess, Dearborn and 32 more	4 hr

Nearby

Mesoscale Discussions in Indiana, 2006 Mesoscale Discussions in Illinois, 2006 Mesoscale Discussions in Michigan, 2006 Every mesoscale discussion in 2006

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.