Alert archive / Illinois / Tornado Watches in 2008

Tornado Watch 394

May 30, 200843 counties in Illinois; 27 counties in Indiana; 22 counties in Missouri

The Storm Prediction Center issued this tornado watch at May 30, 2008, 1:56 PM CDT for 43 counties in Illinois; 27 counties in Indiana; 22 counties in Missouri. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: May 30, 2008, 1:56 PM CDT (18:56 UTC)
Expired: May 30, 2008, 10:00 PM CDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 92 counties

Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clinton County, IL, Coles County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Greene County, IL, Iroquois County, IL, Jersey County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Pike County, IL, Saint Clair County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Washington County, IL, Benton County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, Fountain County, IN, Fulton County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Howard County, IN, Jasper County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Montgomery County, IN, Newton County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Starke County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, White County, IN, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Franklin County, MO, Gasconade County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Saint Charles County, MO, Saint Louis County, MO, Shelby County, MO, Warren County, MO

The radar

The Lincoln radar (KILX), 82 km from the middle of the area, began a volume at 18:55 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 50%
One or more EF2 to EF5 tornadoes: 20%
Ten or more severe wind reports: 80%
One or more gusts of 65 knots or more: 40%
Ten or more severe hail reports: 60%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 30, 2:02 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte, Starke	21 min
May 30, 3:03 PM CDT	Tornado Warning	ILX	McLean	27 min
May 30, 3:13 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Livingston	47 min
May 30, 3:37 PM CDT	Severe Thunderstorm Warning	LOT	Ford	38 min
May 30, 3:55 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	50 min
May 30, 3:56 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	49 min
May 30, 4:02 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	58 min
May 30, 4:07 PM CDT	Tornado Warning	LSX	Adams, Brown, Pike	38 min
May 30, 4:10 PM CDT	Flash Flood Warning	LOT	Ford, Iroquois, Livingston	6 hr
May 30, 4:11 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	49 min
May 30, 4:14 PM CDT	Tornado Warning	ILX	Cass, Mason, Menard	31 min
May 30, 4:14 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis	61 min
May 30, 4:25 PM CDT	Tornado Warning	ILX	Morgan, Scott	50 min
May 30, 4:34 PM CDT	Severe Thunderstorm Warning	IND	Warren	41 min
May 30, 4:36 PM CDT	Tornado Warning	ILX	Logan	24 min
May 30, 4:36 PM CDT	Tornado Warning	ILX	Vermilion	12 min
May 30, 4:36 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	54 min
May 30, 4:38 PM CDT	Tornado Warning	LSX	Monroe, Pike, Ralls	52 min
May 30, 4:43 PM CDT	Tornado Warning	LSX	Pike	12 min
May 30, 4:48 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	42 min
May 30, 4:57 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Shelby	48 min
May 30, 4:59 PM CDT	Tornado Warning	ILX	DeWitt, Logan, Macon	46 min
May 30, 5:05 PM CDT	Severe Thunderstorm Warning	IWX	White	40 min
May 30, 5:07 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	38 min
May 30, 5:08 PM CDT	Severe Thunderstorm Warning	ILX	Cass	38 min
May 30, 5:09 PM CDT	Tornado Warning	LSX	Pike	21 min
May 30, 5:14 PM CDT	Tornado Warning	ILX	Morgan, Scott	46 min
May 30, 5:16 PM CDT	Flash Flood Warning	LOT	Benton	6 hr
May 30, 5:17 PM CDT	Severe Thunderstorm Warning	IND	Tippecanoe	28 min
May 30, 5:19 PM CDT	Tornado Warning	LSX	Pike	41 min
May 30, 5:31 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, McLean, Piatt	44 min
May 30, 5:34 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe	41 min
May 30, 5:41 PM CDT	Tornado Warning	ILX	Sangamon	49 min
May 30, 5:45 PM CDT	Tornado Warning	IND	Tippecanoe	45 min
May 30, 5:46 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	44 min
May 30, 5:56 PM CDT	Flash Flood Warning	ILX	McLean, Tazewell, Woodford	3 hr
May 30, 5:56 PM CDT	Tornado Warning	LSX	Pike	49 min
May 30, 6:05 PM CDT	Tornado Warning	ILX	Champaign	40 min
May 30, 6:10 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway, Monroe, Ralls	50 min
May 30, 6:11 PM CDT	Tornado Warning	ILX	Morgan, Scott	49 min
May 30, 6:13 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	32 min
May 30, 6:24 PM CDT	Tornado Warning	ILX	Vermilion	36 min
May 30, 6:29 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Morgan, Schuyler	46 min
May 30, 6:30 PM CDT	Tornado Warning	IND	Carroll	45 min
May 30, 6:31 PM CDT	Severe Thunderstorm Warning	LSX	Brown, Greene, Pike	44 min
May 30, 6:32 PM CDT	Tornado Warning	ILX	Christian, Macon, Sangamon	43 min
May 30, 6:32 PM CDT	Severe Thunderstorm Warning	IND	Clinton, Tippecanoe	28 min
May 30, 6:34 PM CDT	Severe Thunderstorm Warning	ILX	McLean	16 min
May 30, 6:44 PM CDT	Tornado Warning	ILX	Champaign, Douglas, Edgar, Vermilion	31 min
May 30, 6:47 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Lincoln, Montgomery, Pike, Ralls and 1 more	43 min
May 30, 6:58 PM CDT	Tornado Warning	ILX	Morgan, Sangamon	47 min
May 30, 6:59 PM CDT	Tornado Warning	ILX	Vermilion	35 min
May 30, 7:00 PM CDT	Tornado Warning	IND	Clinton, Howard	34 min
May 30, 7:01 PM CDT	Flash Flood Warning	ILX	Morgan, Scott	3 hr
May 30, 7:07 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	38 min
May 30, 7:07 PM CDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion	38 min
May 30, 7:10 PM CDT	Tornado Warning	ILX	Edgar, Vermilion	33 min
May 30, 7:11 PM CDT	Severe Thunderstorm Warning	ILX	Macon, Moultrie, Piatt	34 min
May 30, 7:15 PM CDT	Severe Thunderstorm Warning	ILX	Scott	30 min
May 30, 7:16 PM CDT	Flash Flood Warning	ILX	Sangamon	3 hr
May 30, 7:16 PM CDT	Flash Flood Warning	ILX	Sangamon	3 hr
May 30, 7:20 PM CDT	Flash Flood Warning	IWX	White	5 hr
May 30, 7:21 PM CDT	Tornado Warning	IND	Fountain, Parke, Vermillion	39 min
May 30, 7:22 PM CDT	Severe Thunderstorm Warning	LOT	Jasper, Lake, Newton, Porter	38 min
May 30, 7:27 PM CDT	Severe Thunderstorm Warning	IND	Clinton, Hamilton, Howard, Tipton	48 min
May 30, 7:29 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey	31 min
May 30, 7:30 PM CDT	Tornado Warning	ILX	Christian, Sangamon	45 min
May 30, 7:37 PM CDT	Flash Flood Warning	ILX	Champaign, Vermilion	3 hr
May 30, 7:38 PM CDT	Tornado Warning	LSX	Montgomery	37 min
May 30, 7:40 PM CDT	Tornado Warning	ILX	Douglas, Moultrie, Piatt	35 min
May 30, 7:41 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Lincoln, Montgomery, Pike, Warren	49 min
May 30, 7:45 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway	45 min
May 30, 7:51 PM CDT	Tornado Warning	IND	Montgomery, Parke, Putnam	39 min
May 30, 7:52 PM CDT	Tornado Warning	ILX	Christian	38 min
May 30, 7:57 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey	48 min
May 30, 8:06 PM CDT	Severe Thunderstorm Warning	ILX	Douglas, Edgar	39 min
May 30, 8:09 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	39 min
May 30, 8:13 PM CDT	Tornado Warning	ILX	Christian, Shelby	47 min
May 30, 8:13 PM CDT	Severe Thunderstorm Warning	LOT	Jasper, Porter	18 min
May 30, 8:15 PM CDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion	45 min
May 30, 8:19 PM CDT	Flash Flood Warning	ILX	Christian	116 min
May 30, 8:25 PM CDT	Severe Thunderstorm Warning	LSX	Jersey, Macoupin, Madison	50 min
May 30, 8:27 PM CDT	Tornado Warning	IND	Hendricks, Montgomery, Putnam	48 min
May 30, 8:28 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Lincoln, Montgomery, Warren	47 min
May 30, 8:32 PM CDT	Severe Thunderstorm Warning	IND	Montgomery, Parke, Putnam	43 min
May 30, 8:35 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	28 min
May 30, 8:37 PM CDT	Tornado Warning	ILX	Moultrie, Shelby	23 min
May 30, 8:42 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	33 min
May 30, 8:45 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey	45 min
May 30, 8:48 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon	42 min
May 30, 8:59 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas, Moultrie	46 min
May 30, 9:02 PM CDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion	43 min
May 30, 9:08 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Warren	52 min
May 30, 9:11 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Macoupin, Madison, Montgomery	49 min
May 30, 9:11 PM CDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hendricks, Marion, Montgomery, Parke and 1 more	49 min
May 30, 9:13 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery, Warren	32 min
May 30, 9:19 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Madison	41 min
May 30, 9:24 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	42 min
May 30, 9:32 PM CDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Henry, Madison, Rush, Shelby	58 min
May 30, 9:34 PM CDT	Tornado Warning	IND	Hancock	41 min
May 30, 9:47 PM CDT	Tornado Warning	IND	Hancock, Henry, Madison	28 min
May 30, 9:49 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis, City of Saint Louis	41 min
May 30, 9:51 PM CDT	Flash Flood Warning	LSX	Calhoun, Jersey, Madison	6 hr
May 30, 9:58 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Madison	47 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

Lincoln, IL (KILX), launched 12:00Z, 6.9 hours before the alert went out and 131 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: 57 J/kg
Mixed-layer CIN: -325 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 128 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

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 1:19 AM CDT	Tornado Watch	SPC	Hancock, Henderson, McDonough, Mercer, Rock Island, Warren	8 hr
May 30, 2:17 AM CDT	Mesoscale Discussion	SPC	Hancock, Henderson, McDonough, Mercer, Rock Island, Warren	88 min
May 30, 6:00 AM CDT	Mesoscale Discussion	SPC	Carroll, Hancock, Henderson, Henry, Knox, Mercer and 3 more	2 hr
May 30, 7:56 AM CDT	Tornado Watch	SPC	Adams, Brown, Bureau, Cass, Cook, DuPage and 26 more	6 hr
May 30, 10:13 AM CDT	Mesoscale Discussion	SPC	Cook, DuPage, Grundy, Kendall, LaSalle, Will	62 min
May 30, 1:14 PM CDT	Mesoscale Discussion	SPC	Adams, Brown, Calhoun, Cass, Champaign, Christian and 24 more	2 hr
May 30, 4:29 PM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more	61 min
May 30, 5:18 PM CDT	Mesoscale Discussion	SPC	Adams, Bond, Brown, Calhoun, Cass, Champaign and 37 more	87 min
May 29, 7:37 PM CDT	Mesoscale Discussion	SPC	Atchison, Gentry, Harrison, Holt, Mercer, Nodaway and 2 more	53 min
May 29, 8:13 PM CDT	Tornado Watch	SPC	Andrew, Atchison, Buchanan, Daviess, DeKalb, Gentry and 10 more	8 hr
May 29, 11:34 PM CDT	Mesoscale Discussion	SPC	Andrew, Atchison, Buchanan, Caldwell, Clinton, Daviess and 12 more	56 min
May 30, 2:23 PM CDT	Mesoscale Discussion	SPC	Bates, Caldwell, Carroll, Cass, Chariton, Clay and 15 more	97 min
May 30, 2:42 PM CDT	Tornado Watch	SPC	Adair, Barton, Bates, Benton, Caldwell, Camden and 36 more	7 hr

Nearby

Tornado Watches in Illinois, 2008 Tornado Watches in Indiana, 2008 Tornado Watches in Missouri, 2008 Every tornado watch in 2008

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.