Alert archive / Indiana / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 550

July 4, 200425 counties in Illinois; 31 counties in Indiana; 26 counties in Kentucky

The Storm Prediction Center issued this severe thunderstorm watch at Jul 4, 2004, 1:05 PM CDT for 25 counties in Illinois; 31 counties in Indiana; 26 counties in Kentucky. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 4, 2004, 1:05 PM CDT (18:05 UTC)
Expired
Jul 4, 2004, 7:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 82 counties

Bond County, IL, Clay County, IL, Clinton County, IL, Crawford County, IL, Cumberland County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Lawrence County, IL, Marion County, IL, Montgomery County, IL, Perry County, IL, Richland County, IL, Saline County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Greene County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Ripley County, IN, Scott County, IN, Spencer County, IN, Sullivan County, IN, Switzerland County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Anderson County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Carroll County, KY, Daviess County, KY, Franklin County, KY, Gallatin County, KY, Hancock County, KY, Hardin County, KY, Henderson County, KY, Henry County, KY, Jefferson County, KY, Larue County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Nelson County, KY, Oldham County, KY, Owen County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Union County, KY, Washington County, KY, Woodford County, KY

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 4, 2:36 PM CDTSevere Thunderstorm WarningILXClay, Effingham54 min
Jul 4, 3:18 PM CDTSevere Thunderstorm WarningILXJasper, Richland57 min
Jul 4, 3:43 PM CDTSevere Thunderstorm WarningILXLawrence47 min
Jul 4, 3:46 PM CDTSevere Thunderstorm WarningPAHEdwards, Wabash29 min
Jul 4, 3:50 PM CDTSevere Thunderstorm WarningINDKnox55 min
Jul 4, 3:57 PM CDTSevere Thunderstorm WarningPAHGibson48 min
Jul 4, 4:09 PM CDTSevere Thunderstorm WarningINDDaviess66 min
Jul 4, 4:20 PM CDTSevere Thunderstorm WarningPAHPike40 min
Jul 4, 4:32 PM CDTSevere Thunderstorm WarningLMKOrange28 min
Jul 4, 4:39 PM CDTSevere Thunderstorm WarningLMKDubois41 min
Jul 4, 4:48 PM CDTSevere Thunderstorm WarningINDMartin57 min
Jul 4, 4:52 PM CDTTornado WarningLMKDubois23 min
Jul 4, 5:10 PM CDTSevere Thunderstorm WarningLMKOrange35 min
Jul 4, 5:18 PM CDTSevere Thunderstorm WarningLMKCrawford32 min
Jul 4, 5:35 PM CDTSevere Thunderstorm WarningLMKWashington30 min
Jul 4, 6:27 PM CDTSevere Thunderstorm WarningLMKHarrison38 min
Jul 4, 6:45 PM CDTSevere Thunderstorm WarningLMKHardin20 min
Jul 4, 7:00 PM CDTSevere Thunderstorm WarningLMKBullitt35 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, 6.1 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2004-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2004-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
825 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
139 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.

IssuedProductOfficeCountiesLasted
Jul 4, 11:24 AM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Crawford, Cumberland, Edwards and 22 more3 hr
Jul 4, 11:35 AM CDTSevere Thunderstorm WatchSPCAlexander, Massac, Pulaski4 hr
Jul 4, 3:04 PM CDTMesoscale DiscussionSPCClay, Edwards, Gallatin, Hamilton, Lawrence, Richland and 3 more116 min
Jul 4, 10:38 AM CDTMesoscale DiscussionSPCFulton2 hr
Jul 4, 3:25 PM CDTSevere Thunderstorm WatchSPCAllen, Barren, Clinton, Cumberland, Logan, Metcalfe and 5 more6 hr

Nearby

Severe Thunderstorm Watches in Indiana, 2004Severe Thunderstorm Watches in Kentucky, 2004Severe Thunderstorm Watches in Illinois, 2004Every 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.