Alert archive / Indiana / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 247

May 22, 20044 states

The Storm Prediction Center issued this severe thunderstorm watch at May 22, 2004, 11:35 AM CDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 22, 2004, 11:35 AM CDT (16:35 UTC)
Expired: May 22, 2004, 6:00 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 66 counties

Champaign County, IL, Cook County, IL, DeWitt County, IL, Douglas County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kankakee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, McLean County, IL, Piatt County, IL, Sangamon County, IL, Vermilion County, IL, Will County, IL, Allen County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, DeKalb County, IN, Elkhart County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hendricks County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Newton County, IN, Noble County, IN, Parke County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Wabash County, IN, Warren County, IN, Wells County, IN, White County, IN, Whitley County, IN, Berrien County, MI, Branch County, MI, Cass County, MI, Hillsdale County, MI, Lenawee County, MI, Saint Joseph County, MI, Defiance County, OH, Williams County, OH

The radar

The Chicago radar (KLOT), 118 km from the middle of the area, began a volume at 16:38 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.

Warnings issued inside it

12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 22, 12:36 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Will	39 min
May 22, 1:42 PM CDT	Severe Thunderstorm Warning	IWX	Saint Joseph	48 min
May 22, 1:48 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	42 min
May 22, 1:52 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte	38 min
May 22, 1:52 PM CDT	Severe Thunderstorm Warning	IWX	Pulaski	53 min
May 22, 2:03 PM CDT	Severe Thunderstorm Warning	IWX	Starke	42 min
May 22, 2:15 PM CDT	Severe Thunderstorm Warning	IWX	Fulton	60 min
May 22, 2:17 PM CDT	Severe Thunderstorm Warning	IWX	Marshall, Saint Joseph	43 min
May 22, 2:45 PM CDT	Severe Thunderstorm Warning	IWX	Elkhart, LaGrange	45 min
May 22, 2:49 PM CDT	Severe Thunderstorm Warning	IWX	Kosciusko	41 min
May 22, 3:12 PM CDT	Severe Thunderstorm Warning	IWX	Whitley	48 min
May 22, 3:14 PM CDT	Severe Thunderstorm Warning	IWX	Whitley	46 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.6 hours before the alert went out and 112 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: 454 J/kg
Mixed-layer CIN: -171 J/kg
Mixed-layer LCL: 1064 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 248 m²/s²
0-3 km storm-relative helicity: 281 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 21, 7:37 PM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 19 more	83 min
May 22, 12:05 AM CDT	Severe Thunderstorm Watch	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more	6 hr
May 22, 2:41 AM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 23 more	94 min
May 22, 6:58 AM CDT	Mesoscale Discussion	SPC	Adams, Brown, Cass, Fulton, Hancock, Henderson and 13 more	62 min
May 22, 11:03 AM CDT	Mesoscale Discussion	SPC	DeWitt, Ford, Grundy, Iroquois, Kankakee, LaSalle and 9 more	57 min
May 22, 5:52 PM CDT	Mesoscale Discussion	SPC	Bureau, Carroll, DeKalb, Grundy, Henry, Jo Daviess and 12 more	113 min
May 22, 6:15 PM CDT	Tornado Watch	SPC	Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 25 more	6 hr
May 22, 1:48 AM CDT	Mesoscale Discussion	SPC	Allen, DeKalb, Elkhart, Kosciusko, LaGrange, LaPorte and 4 more	57 min
May 22, 2:36 PM CDT	Mesoscale Discussion	SPC	Adams, Allen, Blackford, Carroll, Cass, Clinton and 17 more	54 min
May 22, 3:20 PM CDT	Severe Thunderstorm Watch	SPC	Jay, Randolph	8 hr
May 22, 5:29 PM CDT	Mesoscale Discussion	SPC	Jay, Randolph	91 min
May 22, 1:09 PM CDT	Mesoscale Discussion	SPC	Barry, Bay, Calhoun, Clinton, Eaton, Genesee and 18 more	66 min
May 22, 1:30 PM CDT	Tornado Watch	SPC	Barry, Calhoun, Clinton, Eaton, Genesee, Gratiot and 18 more	6 hr
May 22, 1:25 AM CDT	Mesoscale Discussion	SPC	Ashland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 33 more	2 hr
May 22, 12:26 PM CDT	Mesoscale Discussion	SPC	Trumbull	94 min

Nearby

Severe Thunderstorm Watches in Indiana, 2004 Severe Thunderstorm Watches in Illinois, 2004 Severe Thunderstorm Watches in Michigan, 2004 Every severe thunderstorm watch in 2004

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.