Alert archive / Indiana / Mesoscale Discussions in 2003

Mesoscale Discussion 1635

July 5, 20034 states

The Storm Prediction Center issued this mesoscale discussion at Jul 5, 2003, 7:20 PM CDT for 4 states. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued
Jul 5, 2003, 7:20 PM CDT (00:20 UTC)
Expired
Jul 5, 2003, 8:15 PM CDT
In force
55 min
Issued by
the Storm Prediction Center
All 65 counties

Edgar County, IL, Iroquois County, IL, Vermilion County, IL, Bartholomew County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Ohio County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Switzerland County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Wayne County, IN, White County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Gallatin County, KY, Kenton County, KY, Pendleton County, KY, Butler County, OH, Clermont County, OH, Darke County, OH, Hamilton County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Warren County, OH

The radar

The Indianapolis radar (KIND), 5 km from the middle of the area, began a volume at 00:20 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.3 hours before the alert went out and 202 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 00:00Z on 2003-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4874 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2003-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.19395878Sfc1 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
4874 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1335 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.9
Supercell composite
13.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 7:51 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 40 more54 min
Jul 5, 10:46 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 33 more59 min
Jul 6, 5:17 AM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson, Whiteside118 min
Jul 6, 7:45 AM CDTMesoscale DiscussionSPCBoone, DeKalb, DuPage, Kane, Lake, McHenry2 hr
Jul 6, 9:48 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 34 more117 min
Jul 6, 11:45 AM CDTTornado WatchSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more6 hr
Jul 6, 12:36 PM CDTMesoscale DiscussionSPCCook, Kankakee114 min
Jul 6, 1:10 PM CDTSevere Thunderstorm WatchSPCChampaign, Christian, Clark, Coles, Cumberland, DeWitt and 14 more5 hr
Jul 6, 2:00 PM CDTMesoscale DiscussionSPCBoone, Brown, Cass, Champaign, Christian, Coles and 35 more2 hr
Jul 6, 5:28 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Christian, Coles and 45 more62 min
Jul 6, 6:00 PM CDTSevere Thunderstorm WatchSPCBoone, Cook, DeKalb, DuPage, Ford, Grundy and 9 more5 hr
Jul 6, 1:25 PM CDTSevere Thunderstorm WatchSPCDeKalb, Elkhart, Kosciusko, LaGrange, LaPorte, Marshall and 4 more5 hr
Jul 6, 5:45 PM CDTSevere Thunderstorm WatchSPCAdams, Allen, Blackford, Carroll, Cass, Clinton and 26 more5 hr
Jul 5, 11:28 PM CDTMesoscale DiscussionSPCBelmont, Coshocton, Guernsey, Licking, Monroe, Morgan and 3 more2 hr

Nearby

Mesoscale Discussions in Indiana, 2003Mesoscale Discussions in Ohio, 2003Mesoscale Discussions in Kentucky, 2003Every mesoscale discussion 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.