Alert archive / Missouri / Tornado Watches in 2024

Tornado Watch 212

May 8, 202421 counties in Illinois; 22 counties in Kentucky; 38 counties in Missouri

The Storm Prediction Center issued this tornado watch at May 8, 2024, 4:42 PM CDT for 21 counties in Illinois; 22 counties in Kentucky; 38 counties in Missouri. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued: May 8, 2024, 4:42 PM CDT (21:42 UTC)
Expired: May 9, 2024, 1:15 AM CDT
In force: 9 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2.5 in
Strongest gust expected: 65 kt

All 81 counties

Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Monroe County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Barry County, MO, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Christian County, MO, Crawford County, MO, Dent County, MO, Douglas County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Laclede County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Phelps County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Washington County, MO, Wayne County, MO, Webster County, MO, Wright County, MO

The radar

The St Louis radar (KLSX), 154 km from the middle of the area, began a volume at 21:46 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: 70%
One or more EF2 to EF5 tornadoes: 60%
Ten or more severe wind reports: 80%
One or more gusts of 65 knots or more: 70%
Ten or more severe hail reports: 80%
One or more hailstones of 2 inches or more: 80%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 8, 4:42 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, McDonald, Newton	48 min
May 8, 4:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Dent, Phelps	19 min
May 8, 4:44 PM CDT	Tornado Warning	PAH	Hardin	46 min
May 8, 4:48 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	42 min
May 8, 4:52 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Hopkins, Muhlenberg	38 min
May 8, 4:53 PM CDT	Flash Flood Warning	PAH	Gallatin, Saline	4 hr
May 8, 4:54 PM CDT	Severe Thunderstorm Warning	LSX	Washington	51 min
May 8, 4:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Dent, Phelps	49 min
May 8, 5:00 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	29 min
May 8, 5:09 PM CDT	Tornado Warning	SGF	Christian, Stone	30 min
May 8, 5:10 PM CDT	Severe Thunderstorm Warning	PAH	Hopkins, Union, Webster	50 min
May 8, 5:10 PM CDT	Flash Flood Warning	SGF	Maries, Miller, Phelps, Pulaski	6 hr
May 8, 5:11 PM CDT	Flash Flood Warning Considerable damage threat	PAH	Hardin	4 hr
May 8, 5:12 PM CDT	Tornado Warning	PAH	Christian	19 min
May 8, 5:13 PM CDT	Flash Flood Warning	LSX	Jefferson	4 hr
May 8, 5:14 PM CDT	Flash Flood Warning	PAH	Union	4 hr
May 8, 5:18 PM CDT	Flash Flood Warning	PAH	Henderson	3 hr
May 8, 5:22 PM CDT	Severe Thunderstorm Warning	PAH	Hardin, Pope	53 min
May 8, 5:24 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Lawrence, Stone	51 min
May 8, 5:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Christian, Greene, Webster	47 min
May 8, 5:30 PM CDT	Severe Thunderstorm Warning	LSX	Saint Francois, Washington	45 min
May 8, 5:34 PM CDT	Tornado Warning	PAH	Livingston	14 min
May 8, 5:34 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	41 min
May 8, 5:34 PM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald, Newton	41 min
May 8, 5:38 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Christian	37 min
May 8, 5:46 PM CDT	Severe Thunderstorm Warning	PAH	Hopkins, McLean, Muhlenberg, Webster	59 min
May 8, 5:46 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Barry, Christian, Stone, Taney	44 min
May 8, 5:49 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	41 min
May 8, 5:50 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	40 min
May 8, 5:53 PM CDT	Flash Flood Warning	SGF	Barry, Christian, Lawrence, McDonald, Newton, Stone	6 hr
May 8, 6:05 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Christian, Douglas, Webster, Wright	40 min
May 8, 6:08 PM CDT	Tornado Warning	LSX	Monroe, Randolph	52 min
May 8, 6:09 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Crittenden, Hopkins, Livingston, Lyon, Union and 1 more	51 min
May 8, 6:12 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Sainte Genevieve, Saint Francois, Washington	63 min
May 8, 6:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Perry	63 min
May 8, 6:27 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas	17 min
May 8, 6:39 PM CDT	Tornado Warning	PAH	Perry	51 min
May 8, 6:42 PM CDT	Severe Thunderstorm Warning Destructive damage threat	SGF	Douglas, Howell, Texas, Wright	48 min
May 8, 6:45 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Hopkins, Muhlenberg	45 min
May 8, 6:48 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Ozark, Taney	26 min
May 8, 6:50 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson	55 min
May 8, 6:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Perry	67 min
May 8, 6:58 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jackson, Williamson	47 min
May 8, 7:04 PM CDT	Tornado Warning	PAH	Franklin, Jefferson, Perry	41 min
May 8, 7:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Hamilton, Wayne, White	60 min
May 8, 7:20 PM CDT	Severe Thunderstorm Warning	PAH	Christian, Muhlenberg, Todd	40 min
May 8, 7:23 PM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	26 min
May 8, 7:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Douglas, Howell, Oregon, Shannon, Texas	49 min
May 8, 7:27 PM CDT	Tornado Warning	PAH	Jefferson, Wayne	48 min
May 8, 7:38 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Hamilton, Jefferson, Saline, White	52 min
May 8, 7:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Edwards, Wabash, Wayne, White	64 min
May 8, 8:04 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	29 min
May 8, 8:12 PM CDT	Severe Thunderstorm Warning Destructive damage threat	PAH	Edwards, Wabash	21 min
May 8, 8:15 PM CDT	Severe Thunderstorm Warning	PAH	Saline, Williamson	30 min
May 8, 8:21 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	39 min
May 8, 8:22 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, White	27 min
May 8, 8:23 PM CDT	Severe Thunderstorm Warning	PAH	Graves, Marshall	37 min
May 8, 8:35 PM CDT	Severe Thunderstorm Warning	PAH	White	40 min
May 8, 8:45 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	30 min
May 8, 8:47 PM CDT	Severe Thunderstorm Warning	PAH	Henderson	32 min
May 8, 8:54 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Saline	36 min
May 8, 8:57 PM CDT	Tornado Warning	LSX	Iron, Madison	33 min
May 8, 9:04 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Bollinger, Cape Girardeau, Perry, Wayne	41 min
May 8, 9:17 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Sainte Genevieve, Saint Francois	29 min
May 8, 9:33 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Jackson, Union	57 min
May 8, 9:36 PM CDT	Severe Thunderstorm Warning	PAH	Alexander	39 min
May 8, 9:37 PM CDT	Severe Thunderstorm Warning	PAH	Daviess, Henderson	38 min
May 8, 9:44 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger, Cape Girardeau, Scott, Stoddard, Wayne	46 min
May 8, 9:47 PM CDT	Severe Thunderstorm Warning	PAH	Christian, Todd, Trigg	43 min
May 8, 9:54 PM CDT	Tornado Warning	PAH	Ballard, Carlisle, Hickman	35 min
May 8, 9:55 PM CDT	Tornado Warning	PAH	Jackson, Union	20 min
May 8, 9:58 PM CDT	Severe Thunderstorm Warning	PAH	Carlisle, Graves, Hickman	47 min
May 8, 10:00 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Alexander, Pulaski, Union	45 min
May 8, 10:10 PM CDT	Severe Thunderstorm Warning	PAH	New Madrid	50 min
May 8, 10:12 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Massac, Pulaski	48 min
May 8, 10:13 PM CDT	Tornado Warning	PAH	New Madrid	28 min
May 8, 10:20 PM CDT	Tornado Warning	PAH	Carlisle, Graves, Hickman	26 min
May 8, 10:26 PM CDT	Severe Thunderstorm Warning	PAH	Ballard, Carlisle, Graves, Hickman, McCracken	49 min
May 8, 10:30 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Gallatin, Johnson, Massac, Pope, Pulaski and 3 more	45 min
May 8, 10:31 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Ripley	24 min
May 8, 10:32 PM CDT	Tornado Warning	PAH	Graves	43 min
May 8, 10:40 PM CDT	Severe Thunderstorm Warning	PAH	Fulton, Hickman	50 min
May 8, 10:54 PM CDT	Tornado Warning	PAH	Calloway, Graves, Marshall	30 min
May 8, 11:05 PM CDT	Flash Flood Warning	PAH	Carlisle, Graves, Hickman, Lyon, McCracken, Marshall	3 hr
May 8, 11:08 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Mississippi, New Madrid, Scott, Stoddard	35 min
May 8, 11:22 PM CDT	Severe Thunderstorm Warning	PAH	Fulton	38 min
May 8, 11:23 PM CDT	Severe Thunderstorm Warning	PAH	Calloway, Lyon, Marshall, Trigg	67 min
May 8, 11:36 PM CDT	Severe Thunderstorm Warning	PAH	Calloway, Graves, Marshall	39 min
May 8, 11:54 PM CDT	Severe Thunderstorm Warning	PAH	Christian, Todd	66 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

Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 243 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: 727 J/kg
Mixed-layer CIN: -200 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 42 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: 0.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 7, 9:20 PM CDT	Mesoscale Discussion	SPC	Crawford, Edwards, Lawrence, Wabash	55 min
May 7, 11:16 PM CDT	Mesoscale Discussion	SPC	Gallatin, Hamilton, Hardin, Pope, Saline, Wabash and 1 more	119 min
May 8, 1:26 AM CDT	Mesoscale Discussion	SPC	Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 2 more	2 hr
May 8, 1:57 AM CDT	Tornado Watch	SPC	Alexander, Massac, Pope, Pulaski	4 hr
May 8, 10:29 AM CDT	Tornado Watch	SPC	Alexander, Franklin, Gallatin, Hardin, Jackson, Jefferson and 12 more	8 hr
May 8, 11:28 AM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 9 more	92 min
May 8, 11:35 AM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 9 more	85 min
May 8, 12:58 PM CDT	Mesoscale Discussion	SPC	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 10 more	62 min
May 8, 1:13 PM CDT	Tornado Watch	SPC	Hamilton, White	10 hr
May 8, 1:50 PM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 12 more	55 min
May 8, 3:41 PM CDT	Mesoscale Discussion	SPC	Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more	94 min
May 7, 8:17 PM CDT	Tornado Watch	SPC	Boyd, Carter, Greenup	7 hr
May 8, 7:50 AM CDT	Mesoscale Discussion	SPC	Calloway, Graves, McCreary, Trigg, Whitley	2 hr
May 8, 5:51 PM CDT	Mesoscale Discussion	SPC	Adair, Allen, Barren, Boyle, Butler, Casey and 18 more	114 min
May 8, 6:29 PM CDT	Mesoscale Discussion	SPC	Butler, Caldwell, Christian, Daviess, Hopkins, Lyon and 4 more	91 min
May 8, 12:56 AM CDT	Tornado Watch	SPC	Dunklin, Pemiscot	5 hr
May 8, 6:14 AM CDT	Mesoscale Discussion	SPC	Bates, Benton, Camden, Cass, Cole, Cooper and 11 more	2 hr
May 8, 6:50 AM CDT	Severe Thunderstorm Watch	SPC	Andrew, Barton, Bates, Benton, Boone, Buchanan and 39 more	10 hr
May 8, 8:58 AM CDT	Mesoscale Discussion	SPC	Benton, Bollinger, Butler, Camden, Cape Girardeau, Carter and 44 more	92 min
May 8, 11:01 AM CDT	Mesoscale Discussion	SPC	Barry, Barton, Cedar, Christian, Dade, Dallas and 17 more	89 min
May 8, 11:59 AM CDT	Tornado Watch	SPC	Barry, Barton, Camden, Cedar, Christian, Dade and 24 more	7 hr
May 8, 1:16 PM CDT	Mesoscale Discussion	SPC	Barry, McDonald, Newton, Stone	2 hr
May 8, 3:50 PM CDT	Mesoscale Discussion	SPC	Barry, Camden, Christian, Dade, Dallas, Douglas and 15 more	115 min
May 8, 5:59 PM CDT	Mesoscale Discussion	SPC	Barry, Christian, Douglas, Howell, McDonald, Stone and 4 more	91 min
May 8, 3:23 AM CDT	Mesoscale Discussion	SPC	Fayette, Haywood, Lauderdale, Shelby, Tipton	2 hr
May 8, 9:04 AM CDT	Severe Thunderstorm Watch	SPC	Anderson, Blount, Campbell, Carter, Claiborne, Cocke and 17 more	6 hr
May 8, 9:56 AM CDT	Mesoscale Discussion	SPC	Anderson, Blount, Cocke, Grainger, Greene, Hamblen and 7 more	94 min
May 8, 2:51 PM CDT	Tornado Watch	SPC	Benton, Carroll, Chester, Crockett, Decatur, Dyer and 9 more	5 hr
May 8, 4:14 PM CDT	Tornado Watch	SPC	Anderson, Bledsoe, Blount, Bradley, Campbell, Franklin and 15 more	7 hr

Nearby

Tornado Watches in Missouri, 2024 Tornado Watches in Kentucky, 2024 Tornado Watches in Illinois, 2024 Every tornado watch in 2024

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.