Alert archive / Indiana / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 269

May 23, 200454 counties in Indiana; 23 counties in Michigan; 16 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at May 23, 2004, 9:50 PM EST for 54 counties in Indiana; 23 counties in Michigan; 16 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 23, 2004, 9:50 PM EST (02:50 UTC)
Expired: May 24, 2004, 4:00 AM EST
In force: 6 hr
Issued by: the Storm Prediction Center

All 93 counties

Adams County, IN, Allen County, IN, Bartholomew County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Decatur County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Fayette 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, Jay County, IN, Johnson County, IN, Kosciusko County, IN, LaGrange County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Morgan County, IN, Noble County, IN, Owen County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Saint Joseph County, IN, Shelby County, IN, Starke County, IN, Steuben County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vigo County, IN, Wabash County, IN, Wayne County, IN, Wells County, IN, White County, IN, Whitley County, IN, Allegan County, MI, Barry County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Oakland County, MI, Ottawa County, MI, Saint Joseph County, MI, Shiawassee County, MI, Van Buren County, MI, Washtenaw County, MI, Allen County, OH, Auglaize County, OH, Butler County, OH, Darke County, OH, Defiance County, OH, Fulton County, OH, Hamilton County, OH, Henry County, OH, Mercer County, OH, Miami County, OH, Paulding County, OH, Preble County, OH, Putnam County, OH, Shelby County, OH, Van Wert County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 59 km from the middle of the area, began a volume at 02:52 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

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

Issued	Product	Office	Counties	Lasted
May 23, 9:50 PM EST	Severe Thunderstorm Warning	IND	Hendricks	40 min
May 23, 10:07 PM EST	Severe Thunderstorm Warning	IND	Morgan	38 min
May 23, 10:13 PM EST	Severe Thunderstorm Warning	IND	Marion	47 min
May 23, 10:32 PM EST	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Henry, Madison, Rush	43 min
May 23, 10:40 PM EST	Severe Thunderstorm Warning	IND	Shelby	35 min
May 23, 10:53 PM EST	Severe Thunderstorm Warning	IND	Delaware, Randolph	37 min
May 23, 10:58 PM EST	Severe Thunderstorm Warning	ILN	Fayette, Wayne	47 min
May 23, 11:21 PM EST	Severe Thunderstorm Warning	ILN	Union	39 min
May 23, 11:32 PM EST	Severe Thunderstorm Warning	ILN	Franklin	43 min
May 23, 11:47 PM EST	Severe Thunderstorm Warning	ILN	Miami, Montgomery	43 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 00:00Z, 2.8 hours before the alert went out and 226 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: 839 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 1585 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 5.3

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 23, 8:40 PM EST	Mesoscale Discussion	SPC	Adams, Allen, Bartholomew, Benton, Blackford, Boone and 68 more	65 min
May 23, 11:26 PM EST	Mesoscale Discussion	SPC	Adams, Allen, Bartholomew, Blackford, Boone, Brown and 49 more	64 min
May 24, 1:09 AM EST	Mesoscale Discussion	SPC	Clinton, Eaton, Genesee, Gratiot, Hillsdale, Ingham and 11 more	2 hr
May 23, 11:30 PM EST	Severe Thunderstorm Watch	SPC	Ashland, Belmont, Carroll, Champaign, Clark, Clinton and 47 more	6 hr
May 24, 3:55 AM EST	Mesoscale Discussion	SPC	Trumbull	95 min

Nearby

Severe Thunderstorm Watches in Indiana, 2004 Severe Thunderstorm Watches in Michigan, 2004 Severe Thunderstorm Watches in Ohio, 2004 Every severe thunderstorm watch 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.