Alert archive / Indiana / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 638

July 4, 200335 counties in Indiana; Boone County, Campbell County, Kenton County, Kentucky; 19 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at Jul 4, 2003, 5:50 PM EST for 35 counties in Indiana; Boone County, Campbell County, Kenton County, Kentucky; 19 counties in Ohio. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 4, 2003, 5:50 PM EST (22:50 UTC)
Expired
Jul 4, 2003, 11:00 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 57 counties

Bartholomew County, IN, Brown County, IN, Clay County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Fayette County, IN, Franklin County, IN, Greene County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Switzerland County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Wayne County, IN, Boone County, KY, Campbell County, KY, Kenton County, KY, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Warren County, OH

The radar

The Indianapolis radar (KIND), 61 km from the middle of the area, began a volume at 22:53 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

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

IssuedProductOfficeCountiesLasted
Jul 4, 6:39 PM ESTSevere Thunderstorm WarningINDMarion51 min
Jul 4, 6:49 PM ESTSevere Thunderstorm WarningINDHancock, Henry56 min
Jul 4, 7:10 PM ESTSevere Thunderstorm WarningILNPreble65 min
Jul 4, 7:11 PM ESTSevere Thunderstorm WarningILNMiami64 min
Jul 4, 7:16 PM ESTSevere Thunderstorm WarningILNWayne59 min
Jul 4, 7:20 PM ESTSevere Thunderstorm WarningILNMontgomery55 min
Jul 4, 7:26 PM ESTSevere Thunderstorm WarningILNChampaign, Clark49 min
Jul 4, 7:34 PM ESTSevere Thunderstorm WarningILNGreene41 min
Jul 4, 7:36 PM ESTSevere Thunderstorm WarningILNButler39 min
Jul 4, 7:43 PM ESTSevere Thunderstorm WarningILNFayette, Union47 min
Jul 4, 7:43 PM ESTSevere Thunderstorm WarningILNFranklin62 min
Jul 4, 7:54 PM ESTSevere Thunderstorm WarningILNWarren51 min
Jul 4, 8:06 PM ESTSevere Thunderstorm WarningILNClinton39 min
Jul 4, 8:20 PM ESTSevere Thunderstorm WarningILNHamilton40 min
Jul 4, 8:25 PM ESTSevere Thunderstorm WarningILNClermont50 min
Jul 4, 8:31 PM ESTSevere Thunderstorm WarningILNBrown, Highland44 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.8 hours before the alert went out and 156 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, Cncnati-Daytn, OH at 12:00Z on 2003-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 718 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2003-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 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
718 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1115 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
39 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, 7:50 AM ESTSevere Thunderstorm WatchSPCElkhart, LaGrange, LaPorte, Saint Joseph, Steuben3 hr
Jul 4, 9:28 AM ESTMesoscale DiscussionSPCDeKalb, Elkhart, Kosciusko, LaGrange, Noble, Steuben2 hr
Jul 4, 12:04 PM ESTMesoscale DiscussionSPCAllen, DeKalb, Elkhart, Kosciusko, LaGrange, LaPorte and 7 more116 min
Jul 4, 12:48 PM ESTMesoscale DiscussionSPCCarroll, Cass, Elkhart, Fulton, Grant, Jasper and 15 more117 min
Jul 4, 1:45 PM ESTMesoscale DiscussionSPCAdams, Allen, DeKalb, Whitley60 min
Jul 4, 2:20 PM ESTSevere Thunderstorm WatchSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 36 more6 hr
Jul 4, 3:29 PM ESTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 28 more2 hr
Jul 4, 5:07 PM ESTMesoscale DiscussionSPCBartholomew, Brown, Clark, Clay, Crawford, Daviess and 37 more53 min
Jul 4, 6:29 PM ESTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 45 more61 min
Jul 4, 9:45 AM ESTSevere Thunderstorm WatchSPCAshland, Ashtabula, Carroll, Columbiana, Cuyahoga, Defiance and 20 more5 hr
Jul 4, 2:05 PM ESTSevere Thunderstorm WatchSPCAllen, Ashland, Auglaize, Carroll, Champaign, Clark and 47 more6 hr

Nearby

Severe Thunderstorm Watches in Indiana, 2003Severe Thunderstorm Watches in Ohio, 2003Severe Thunderstorm Watches in Kentucky, 2003Every 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.