Alert archive / Indiana / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 328

May 9, 20034 states

The Storm Prediction Center issued this severe thunderstorm watch at May 9, 2003, 10:40 PM CDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 9, 2003, 10:40 PM CDT (03:40 UTC)
Expired: May 10, 2003, 4:00 AM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 75 counties

Brown County, IL, Cass County, IL, Champaign County, IL, DeWitt County, IL, Ford County, IL, Fulton County, IL, Grundy County, IL, Henderson County, IL, Iroquois County, IL, Kankakee County, IL, Knox County, IL, LaSalle County, IL, Livingston County, IL, Logan County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Peoria County, IL, Putnam County, IL, Schuyler County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Warren County, IL, Will County, IL, Woodford County, IL, Adams County, IN, Allen County, IN, Benton County, IN, Carroll County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Newton County, IN, Noble County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Tippecanoe County, IN, Wabash County, IN, Warren County, IN, Wells County, IN, White County, IN, Whitley County, IN, Branch County, MI, Hillsdale County, MI, Lenawee County, MI, Monroe County, MI, Saint Joseph County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Lucas County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH

The radar

The Chicago radar (KLOT), 69 km from the middle of the area, began a volume at 03:40 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

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

Issued	Product	Office	Counties	Lasted
May 9, 10:43 PM CDT	Severe Thunderstorm Warning	DTX	Lenawee	62 min
May 9, 10:52 PM CDT	Severe Thunderstorm Warning	IWX	Defiance, Paulding	53 min
May 9, 10:59 PM CDT	Severe Thunderstorm Warning	CLE	Wood	61 min
May 9, 11:00 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte	60 min
May 9, 11:03 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell	57 min
May 9, 11:09 PM CDT	Severe Thunderstorm Warning	IWX	Saint Joseph	66 min
May 9, 11:20 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Woodford	55 min
May 9, 11:24 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt	51 min
May 9, 11:43 PM CDT	Severe Thunderstorm Warning	IWX	Defiance	47 min
May 9, 11:47 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	28 min
May 9, 11:53 PM CDT	Severe Thunderstorm Warning	IWX	Branch	37 min
May 10, 12:06 AM CDT	Severe Thunderstorm Warning	ILX	Champaign	54 min
May 10, 12:33 AM CDT	Severe Thunderstorm Warning	ILX	Vermilion	42 min
May 10, 1:29 AM CDT	Severe Thunderstorm Warning	DTX	Lenawee	61 min
May 10, 1:40 AM CDT	Severe Thunderstorm Warning	ILX	Tazewell	50 min
May 10, 1:55 AM CDT	Severe Thunderstorm Warning	CLE	Lucas	50 min
May 10, 2:01 AM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Macon	44 min
May 10, 2:02 AM CDT	Severe Thunderstorm Warning	CLE	Wood	28 min
May 10, 2:03 AM CDT	Severe Thunderstorm Warning	DTX	Monroe	57 min
May 10, 2:49 AM CDT	Severe Thunderstorm Warning	IWX	Saint Joseph	41 min
May 10, 3:01 AM CDT	Severe Thunderstorm Warning	DTX	Monroe	44 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

Mesoscale Discussion 892May 9, 8:40 PM CDT

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 3.7 hours before the alert went out and 217 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1901 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 207 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 9, 7:47 PM CDT	Mesoscale Discussion	SPC	Calhoun, Greene, Morgan, Pike, Scott	88 min
May 9, 8:40 PM CDT	Mesoscale Discussion	SPC	Bond, Champaign, Christian, Clark, Clinton, Coles and 18 more	2 hr
May 9, 10:04 PM CDT	Mesoscale Discussion	SPC	Adams	26 min
May 10, 5:43 AM CDT	Mesoscale Discussion	SPC	Adams, Brown, Calhoun, Cass, Christian, Fulton and 15 more	92 min
May 10, 5:50 AM CDT	Severe Thunderstorm Watch	SPC	Adams, Bond, Brown, Calhoun, Cass, Christian and 25 more	5 hr
May 10, 8:30 AM CDT	Tornado Watch	SPC	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 9 more	6 hr
May 10, 9:25 AM CDT	Mesoscale Discussion	SPC	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more	2 hr
May 10, 10:39 AM CDT	Mesoscale Discussion	SPC	Clark, Clay, Coles, Crawford, Cumberland, Douglas and 5 more	2 hr
May 10, 10:54 AM CDT	Mesoscale Discussion	SPC	Adams, Alexander, Bond, Brown, Calhoun, Cass and 69 more	66 min
May 10, 12:38 PM CDT	Mesoscale Discussion	SPC	Clay, Crawford, Jasper, Lawrence, Richland	97 min
May 10, 3:17 PM CDT	Mesoscale Discussion	SPC	Hancock, Henderson, Mercer, Rock Island	58 min
May 10, 3:50 PM CDT	Tornado Watch	SPC	Bureau, Carroll, Fulton, Henderson, Henry, Jo Daviess and 14 more	6 hr
May 10, 4:00 PM CDT	Tornado Watch	SPC	Franklin, Jackson, Perry, Randolph, Union	5 hr
May 10, 4:48 PM CDT	Mesoscale Discussion	SPC	Adams, Bond, Brown, Calhoun, Cass, Christian and 25 more	87 min
May 10, 5:40 PM CDT	Tornado Watch	SPC	Adams, Bond, Brown, Calhoun, Cass, Christian and 21 more	5 hr
May 10, 6:41 PM CDT	Mesoscale Discussion	SPC	Adams, Bond, Brown, Calhoun, Cass, Christian and 14 more	64 min
May 10, 3:33 AM CDT	Mesoscale Discussion	SPC	Bartholomew, Boone, Brown, Clark, Crawford, Daviess and 41 more	87 min
May 10, 11:00 AM CDT	Tornado Watch	SPC	Blackford, Dearborn, Delaware, Fayette, Franklin, Henry and 7 more	5 hr
May 10, 1:04 PM CDT	Mesoscale Discussion	SPC	Blackford, Dearborn, Delaware, Fayette, Franklin, Henry and 7 more	86 min
May 9, 7:57 PM CDT	Mesoscale Discussion	SPC	Athens, Hocking, Meigs	63 min
May 10, 10:12 AM CDT	Mesoscale Discussion	SPC	Adams, Athens, Brown, Butler, Clermont, Clinton and 15 more	2 hr
May 10, 12:20 PM CDT	Tornado Watch	SPC	Lawrence	6 hr
May 10, 2:27 PM CDT	Mesoscale Discussion	SPC	Lawrence	93 min
May 10, 2:46 PM CDT	Mesoscale Discussion	SPC	Adams, Brown, Clermont, Clinton, Fayette, Gallia and 8 more	59 min
May 10, 4:56 PM CDT	Mesoscale Discussion	SPC	Lawrence	94 min
May 10, 5:30 PM CDT	Tornado Watch	SPC	Lawrence	6 hr

Nearby

Severe Thunderstorm Watches in Indiana, 2003 Severe Thunderstorm Watches in Illinois, 2003 Severe Thunderstorm Watches in Ohio, 2003 Every severe thunderstorm watch 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.