Alert archive / Illinois / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 507

June 10, 200328 counties in Illinois; 10 counties in Indiana; 8 counties in Kentucky

The Storm Prediction Center issued this severe thunderstorm watch at Jun 10, 2003, 6:35 PM CDT for 28 counties in Illinois; 10 counties in Indiana; 8 counties in Kentucky. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Jun 10, 2003, 6:35 PM CDT (23:35 UTC)
Expired: Jun 10, 2003, 11:00 PM CDT
In force: 4 hr
Issued by: the Storm Prediction Center

All 46 counties

Bond County, IL, Clay County, IL, Clinton County, IL, Crawford County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Marion County, IL, Montgomery County, IL, Perry County, IL, Pope County, IL, Richland County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Daviess County, IN, Gibson County, IN, Greene County, IN, Knox County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Warrick County, IN, Crittenden County, KY, Daviess County, KY, Henderson County, KY, Hopkins County, KY, McLean County, KY, Muhlenberg County, KY, Union County, KY, Webster County, KY

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 10, 6:59 PM CDT	Flash Flood Warning	ILX	Clay, Effingham, Jasper	6 hr
Jun 10, 6:59 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jackson, Jefferson	46 min
Jun 10, 7:12 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton	48 min
Jun 10, 7:19 PM CDT	Severe Thunderstorm Warning	ILX	Clay	41 min
Jun 10, 7:19 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	41 min
Jun 10, 7:26 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash, White	49 min
Jun 10, 7:30 PM CDT	Flash Flood Warning	ILX	Crawford	6 hr
Jun 10, 7:41 PM CDT	Severe Thunderstorm Warning	PAH	Gibson, Posey	49 min
Jun 10, 7:46 PM CDT	Severe Thunderstorm Warning	PAH	Saline	29 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, 11.6 hours before the alert went out and 192 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: 77 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1451 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 63 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
Jun 10, 7:15 AM CDT	Severe Thunderstorm Watch	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 16 more	6 hr
Jun 10, 10:24 AM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more	2 hr
Jun 10, 3:40 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Bond, Brown, Calhoun, Cass, Christian and 23 more	5 hr
Jun 10, 5:07 PM CDT	Mesoscale Discussion	SPC	Jackson, Monroe, Perry, Randolph, Saint Clair, Washington	113 min
Jun 10, 12:22 PM CDT	Mesoscale Discussion	SPC	Perry, Spencer	113 min

Nearby

Severe Thunderstorm Watches in Illinois, 2003 Severe Thunderstorm Watches in Indiana, 2003 Severe Thunderstorm Watches in Kentucky, 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.