Alert archive / Indiana / Mesoscale Discussions in 2003

Mesoscale Discussion 1720

July 8, 200373 counties in Indiana; 19 counties in Kentucky; 38 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jul 8, 2003, 5:38 PM EST for 73 counties in Indiana; 19 counties in Kentucky; 38 counties in Ohio. It was in force for 37 min.

The area

The outline as issued.

The facts

Issued
Jul 8, 2003, 5:38 PM EST (22:38 UTC)
Expired
Jul 8, 2003, 6:15 PM EST
In force
37 min
Issued by
the Storm Prediction Center
All 130 counties

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, Clark County, IN, Clay County, IN, Clinton County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Dubois County, IN, Fayette County, IN, Floyd County, IN, Fountain County, IN, Franklin County, IN, Fulton County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jackson County, IN, Jasper County, IN, Jay County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Parke County, IN, Pike County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott 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, Wabash County, IN, Warren County, IN, Washington County, IN, Wayne County, IN, Wells County, IN, White County, IN, Whitley County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Fleming County, KY, Gallatin County, KY, Grant County, KY, Greenup County, KY, Harrison County, KY, Henry County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Trimble County, KY, Adams County, OH, Allen County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Crawford County, OH, Darke County, OH, Delaware County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Highland County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Paulding County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Putnam County, OH, Ross County, OH, Scioto County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Warren County, OH, Wyandot County, OH

The radar

The Indianapolis radar (KIND), 68 km from the middle of the area, began a volume at 22:38 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.6 hours before the alert went out and 168 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 2003-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 537 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 2003-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
537 J/kg
Mixed-layer CIN
-255 J/kg
Mixed-layer LCL
1058 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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 7, 7:40 PM ESTSevere Thunderstorm WatchSPCJasper, Lake, Newton, Porter3 hr
Jul 7, 9:13 PM ESTMesoscale DiscussionSPCAdams, Allen, Blackford, Boone, Carroll, Cass and 30 more62 min
Jul 7, 10:18 PM ESTMesoscale DiscussionSPCBenton, Jasper, Lake, Newton, Porter, White57 min
Jul 7, 11:00 PM ESTSevere Thunderstorm WatchSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 39 more5 hr
Jul 7, 11:50 PM ESTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 36 more85 min
Jul 8, 10:05 AM ESTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 43 more25 min
Jul 8, 10:25 AM ESTSevere Thunderstorm WatchSPCAdams, Allen, Cass, DeKalb, Elkhart, Fulton and 19 more6 hr
Jul 8, 12:04 PM ESTMesoscale DiscussionSPCAdams, Allen, Cass, DeKalb, Elkhart, Fulton and 19 more56 min
Jul 8, 12:25 PM ESTMesoscale DiscussionSPCBartholomew, Brown, Clark, Clay, Crawford, Daviess and 42 more95 min
Jul 8, 1:25 PM ESTSevere Thunderstorm WatchSPCBartholomew, Benton, Blackford, Boone, Brown, Carroll and 54 more6 hr
Jul 8, 2:30 PM ESTMesoscale DiscussionSPCAdams, Allen, Cass, DeKalb, Elkhart, Fulton and 17 more30 min
Jul 8, 3:02 PM ESTMesoscale DiscussionSPCBartholomew, Benton, Blackford, Boone, Brown, Carroll and 54 more88 min
Jul 8, 3:20 PM ESTSevere Thunderstorm WatchSPCAdams, Allen, DeKalb, Elkhart, Fulton, Huntington and 17 more4 hr
Jul 8, 6:40 PM ESTSevere Thunderstorm WatchSPCBartholomew, Benton, Blackford, Boone, Brown, Carroll and 50 more5 hr
Jul 7, 8:55 PM ESTSevere Thunderstorm WatchSPCBoyd, Carter, Elliott, Greenup, Lewis3 hr
Jul 7, 11:57 PM ESTMesoscale DiscussionSPCBoyd, Carter, Greenup63 min
Jul 8, 2:02 PM ESTMesoscale DiscussionSPCBoyd28 min
Jul 8, 2:15 PM ESTSevere Thunderstorm WatchSPCBoyd5 hr
Jul 8, 4:05 PM ESTMesoscale DiscussionSPCBoyd115 min
Jul 7, 8:30 PM ESTMesoscale DiscussionSPCAdams, Ashland, Athens, Carroll, Coshocton, Crawford and 36 more60 min
Jul 8, 1:57 AM ESTMesoscale DiscussionSPCAshland, Athens, Belmont, Carroll, Champaign, Clark and 44 more63 min
Jul 8, 2:20 AM ESTSevere Thunderstorm WatchSPCAshland, Athens, Belmont, Carroll, Champaign, Clark and 51 more6 hr
Jul 8, 5:06 AM ESTMesoscale DiscussionSPCAthens, Belmont, Carroll, Columbiana, Coshocton, Cuyahoga and 21 more114 min

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.