Alert archive / Indiana / Mesoscale Discussions in 2004

Mesoscale Discussion 719

May 17, 200450 counties in Indiana; 29 counties in Kentucky; 27 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at May 17, 2004, 1:09 PM EST for 50 counties in Indiana; 29 counties in Kentucky; 27 counties in Ohio. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 17, 2004, 1:09 PM EST (18:09 UTC)
Expired: May 17, 2004, 3:15 PM EST
In force: 2 hr
Issued by: the Storm Prediction Center

All 106 counties

Adams County, IN, Bartholomew County, IN, Blackford County, IN, Brown County, IN, Clark 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, Franklin County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Harrison County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Jay County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Perry County, IN, Pike County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Switzerland County, IN, Tipton County, IN, Union County, IN, Warrick County, IN, Washington County, IN, Wayne County, IN, Wells County, IN, Anderson County, KY, Boone County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Campbell County, KY, Carroll County, KY, Daviess County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Hancock County, KY, Harrison County, KY, Henry County, KY, Jefferson County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Meade County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Scott County, KY, Shelby County, KY, Spencer 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, Darke County, OH, Fayette County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Highland County, OH, Logan County, OH, Madison County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Shelby County, OH, Van Wert County, OH, Warren County, OH

The radar

The Indianapolis radar (KIND), 89 km from the middle of the area, began a volume at 18:09 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.2 hours before the alert went out and 343 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 652 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 999 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 56 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.

Issued	Product	Office	Counties	Lasted
May 17, 10:22 AM EST	Mesoscale Discussion	SPC	Allen, Benton, Carroll, Cass, Clinton, DeKalb and 26 more	2 hr
May 17, 12:05 PM EST	Severe Thunderstorm Watch	SPC	DeKalb, Elkhart, LaGrange, Noble, Saint Joseph, Steuben	7 hr
May 17, 3:05 PM EST	Mesoscale Discussion	SPC	DeKalb, Elkhart, LaGrange, Saint Joseph, Steuben	85 min
May 17, 1:45 PM EST	Severe Thunderstorm Watch	SPC	Ashland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 12 more	5 hr
May 17, 4:23 PM EST	Mesoscale Discussion	SPC	Ashland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 12 more	2 hr
May 17, 4:46 PM EST	Mesoscale Discussion	SPC	Fulton, Williams	89 min
May 17, 5:50 PM EST	Mesoscale Discussion	SPC	Ashtabula, Columbiana, Geauga, Mahoning, Medina, Portage and 4 more	85 min

Nearby

Mesoscale Discussions in Indiana, 2004 Mesoscale Discussions in Kentucky, 2004 Mesoscale Discussions in Ohio, 2004 Every mesoscale discussion 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; radar from the NEXRAD Level II archive.