Alert archive / Indiana / Mesoscale Discussions in 2003

Mesoscale Discussion 1742

July 9, 20034 states

The Storm Prediction Center issued this mesoscale discussion at Jul 9, 2003, 3:12 PM CDT for 4 states. It was in force for 33 min.

The area

The outline as issued.

The facts

Issued
Jul 9, 2003, 3:12 PM CDT (20:12 UTC)
Expired
Jul 9, 2003, 3:45 PM CDT
In force
33 min
Issued by
the Storm Prediction Center
All 79 counties

Clark County, IL, Edgar County, IL, Kankakee County, IL, Adams County, IN, Allen County, IN, Bartholomew County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass 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, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Jay County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Owen County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wayne County, IN, Wells County, IN, White County, IN, Boone County, KY, Campbell County, KY, Kenton County, KY, Allen County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Logan County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Shelby County, OH, Van Wert County, OH, Warren County, OH

The radar

The Indianapolis radar (KIND), 81 km from the middle of the area, began a volume at 20:15 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.2 hours before the alert went out and 198 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 2003-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 279 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, Lincoln, IL at 12:00Z on 2003-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
279 J/kg
Mixed-layer CIN
-182 J/kg
Mixed-layer LCL
874 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 8, 8:59 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 36 more2 hr
Jul 8, 10:55 PM CDTSevere Thunderstorm WatchSPCBond, Cass, Champaign, Christian, Clark, Clay and 27 more5 hr
Jul 9, 2:21 AM CDTMesoscale DiscussionSPCBond, Cass, Champaign, Christian, Clark, Clay and 27 more114 min
Jul 9, 9:54 AM CDTMesoscale DiscussionSPCBureau, Champaign, Christian, Clark, Coles, Crawford and 28 more96 min
Jul 9, 11:10 AM CDTSevere Thunderstorm WatchSPCBureau, Champaign, Clark, Coles, DeWitt, Douglas and 17 more6 hr
Jul 9, 12:34 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Clinton, Effingham and 17 more56 min
Jul 9, 1:35 PM CDTMesoscale DiscussionSPCChampaign, Coles, Douglas, Edgar, Ford, Grundy and 4 more55 min
Jul 9, 3:15 PM CDTTornado WatchSPCCarroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 5 more6 hr
Jul 9, 5:04 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 18 more86 min
Jul 9, 5:25 PM CDTTornado WatchSPCCass, Champaign, Christian, Clark, Coles, Cumberland and 24 more4 hr
Jul 9, 5:38 PM CDTMesoscale DiscussionSPCBureau, Fulton, Hancock, Henderson, Henry, Knox and 12 more97 min
Jul 8, 8:37 PM CDTMesoscale DiscussionSPCBartholomew, Benton, Blackford, Boone, Brown, Carroll and 50 more2 hr
Jul 9, 3:35 PM CDTSevere Thunderstorm WatchSPCAdams, Bartholomew, Blackford, Dearborn, Decatur, Delaware and 21 more5 hr
Jul 9, 5:55 PM CDTSevere Thunderstorm WatchSPCBartholomew, Benton, Boone, Brown, Carroll, Clay and 26 more3 hr
Jul 9, 6:02 PM CDTMesoscale DiscussionSPCDearborn, Decatur, Fayette, Franklin, Jefferson, Jennings and 7 more88 min
Jul 9, 11:55 AM CDTMesoscale DiscussionSPCAdair, Boyle, Breathitt, Casey, Clay, Estill and 26 more3 hr
Jul 8, 7:12 PM CDTMesoscale DiscussionSPCAthens, Belmont, Gallia, Guernsey, Lawrence, Meigs and 5 more93 min

Nearby

Mesoscale Discussions in Indiana, 2003Mesoscale Discussions in Ohio, 2003Mesoscale Discussions in Illinois, 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.