Alert archive / Illinois / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 649

July 5, 200342 counties in Illinois; 36 counties in Iowa; 22 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jul 5, 2003, 5:55 PM CDT for 42 counties in Illinois; 36 counties in Iowa; 22 counties in Missouri. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 5, 2003, 5:55 PM CDT (22:55 UTC)
Expired: Jul 6, 2003, 12:00 AM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 100 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Des Moines County, IA, Guthrie County, IA, Henry County, IA, Jasper County, IA, Jefferson County, IA, Keokuk County, IA, Lee County, IA, Louisa County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Monroe County, IA, Montgomery County, IA, Muscatine County, IA, Page County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Washington County, IA, Wayne County, IA, Adams County, IL, Brown County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Coles County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Ford County, IL, Fulton County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Iroquois County, IL, Knox County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Mercer County, IL, Morgan County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Pike County, IL, Putnam County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Warren County, IL, Woodford County, IL, Adair County, MO, Andrew County, MO, Clark County, MO, Daviess County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Knox County, MO, Lewis County, MO, Linn County, MO, Macon County, MO, Marion County, MO, Mercer County, MO, Nodaway County, MO, Putnam County, MO, Ralls County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 156 km from the middle of the area, began a volume at 22:58 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

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

Issued	Product	Office	Counties	Lasted
Jul 5, 6:01 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	29 min
Jul 5, 6:08 PM CDT	Severe Thunderstorm Warning	DMX	Union	22 min
Jul 5, 6:09 PM CDT	Severe Thunderstorm Warning	DVN	Lee	66 min
Jul 5, 6:19 PM CDT	Severe Thunderstorm Warning	DMX	Adair	26 min
Jul 5, 6:23 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	47 min
Jul 5, 6:26 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	34 min
Jul 5, 6:28 PM CDT	Severe Thunderstorm Warning	DMX	Clarke	47 min
Jul 5, 6:32 PM CDT	Severe Thunderstorm Warning	DMX	Adams	58 min
Jul 5, 6:34 PM CDT	Severe Thunderstorm Warning	DMX	Union	56 min
Jul 5, 6:39 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Wayne	66 min
Jul 5, 6:52 PM CDT	Tornado Warning	DMX	Union	23 min
Jul 5, 6:59 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	41 min
Jul 5, 7:27 PM CDT	Severe Thunderstorm Warning	DMX	Decatur	63 min
Jul 5, 7:39 PM CDT	Severe Thunderstorm Warning	DVN	Lee	66 min
Jul 5, 7:39 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	21 min
Jul 5, 7:44 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	61 min
Jul 5, 7:56 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	79 min
Jul 5, 7:58 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell	62 min
Jul 5, 8:09 PM CDT	Severe Thunderstorm Warning	DMX	Wayne	36 min
Jul 5, 8:18 PM CDT	Flash Flood Warning	DVN	Hancock	7 hr
Jul 5, 8:32 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	58 min
Jul 5, 9:04 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold	41 min
Jul 5, 9:20 PM CDT	Severe Thunderstorm Warning	EAX	Harrison, Worth	40 min
Jul 5, 9:24 PM CDT	Severe Thunderstorm Warning	DVN	Lee	66 min
Jul 5, 9:26 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	64 min
Jul 5, 9:28 PM CDT	Severe Thunderstorm Warning	DVN	Scotland	62 min
Jul 5, 9:32 PM CDT	Flash Flood Warning	ILX	Edgar	6 hr
Jul 5, 9:54 PM CDT	Flash Flood Warning	DVN	Clark	5 hr
Jul 5, 10:02 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	58 min
Jul 5, 10:03 PM CDT	Severe Thunderstorm Warning	ILX	Douglas	57 min
Jul 5, 10:08 PM CDT	Severe Thunderstorm Warning	LSX	Lewis	22 min
Jul 5, 10:23 PM CDT	Severe Thunderstorm Warning	LSX	Adams	67 min
Jul 5, 11:26 PM CDT	Severe Thunderstorm Warning	ILX	McLean	64 min
Jul 5, 11:43 PM CDT	Flash Flood Warning	ILX	Douglas	4 hr

Discussions around it

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

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.9 hours before the alert went out and 169 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: 2634 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 4, 8:58 PM CDT	Mesoscale Discussion	SPC	DuPage, Grundy, Iroquois, Kane, Kankakee, Kendall and 1 more	62 min
Jul 4, 10:09 PM CDT	Mesoscale Discussion	SPC	Brown, Cass, Champaign, DeWitt, Douglas, Ford and 20 more	2 hr
Jul 4, 10:45 PM CDT	Mesoscale Discussion	SPC	Jo Daviess, Rock Island	90 min
Jul 4, 11:25 PM CDT	Severe Thunderstorm Watch	SPC	Carroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 6 more	7 hr
Jul 5, 2:31 AM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 27 more	89 min
Jul 5, 3:40 AM CDT	Severe Thunderstorm Watch	SPC	Boone, Bureau, Cook, DeKalb, DuPage, Grundy and 11 more	4 hr
Jul 5, 5:43 AM CDT	Mesoscale Discussion	SPC	Cook, Kankakee, Lake, Will	92 min
Jul 5, 12:55 PM CDT	Mesoscale Discussion	SPC	Champaign, Christian, Clark, Coles, Crawford, Cumberland and 14 more	3 hr
Jul 5, 4:34 PM CDT	Mesoscale Discussion	SPC	Champaign, Ford, Iroquois, Vermilion	56 min
Jul 5, 5:18 PM CDT	Mesoscale Discussion	SPC	Cass, DeWitt, Fulton, Hancock, Henderson, Henry and 16 more	57 min
Jul 4, 8:43 PM CDT	Mesoscale Discussion	SPC	Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 20 more	62 min
Jul 4, 9:05 PM CDT	Tornado Watch	SPC	Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 31 more	6 hr
Jul 5, 12:19 PM CDT	Mesoscale Discussion	SPC	Harrison, Monona	2 hr
Jul 5, 3:10 PM CDT	Severe Thunderstorm Watch	SPC	Harrison, Mills, Monona, Plymouth, Pottawattamie, Woodbury	7 hr
Jul 5, 6:42 PM CDT	Mesoscale Discussion	SPC	Fremont, Harrison, Mills, Monona, Page, Pottawattamie and 1 more	93 min

Nearby

Severe Thunderstorm Watches in Illinois, 2003 Severe Thunderstorm Watches in Iowa, 2003 Severe Thunderstorm Watches in Missouri, 2003 Every severe thunderstorm watch in 2003

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.