Alert archive / Missouri / Tornado Watches in 2026

Tornado Watch 160

April 27, 202623 counties in Illinois; 49 counties in Missouri

The Storm Prediction Center issued this tornado watch at Apr 27, 2026, 12:50 PM CDT for 23 counties in Illinois; 49 counties in Missouri. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued: Apr 27, 2026, 12:50 PM CDT (17:50 UTC)
Expired: Apr 27, 2026, 9:55 PM CDT
In force: 9 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2.5 in
Strongest gust expected: 65 kt

All 72 counties

Bond County, IL, Calhoun County, IL, Clinton County, IL, Edwards County, IL, Fayette County, IL, Franklin County, IL, Greene County, IL, Hamilton County, IL, Jackson County, IL, Jefferson County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Perry County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Wayne County, IL, White County, IL, Audrain County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Christian County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Laclede County, MO, Lincoln County, MO, Madison County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Oregon County, MO, Osage County, MO, Ozark County, MO, Perry County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shannon County, MO, Taney County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Webster County, MO, Wright County, MO

The radar

The St Louis radar (KLSX), 84 km from the middle of the area, began a volume at 17:55 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: 80%
One or more EF2 to EF5 tornadoes: 60%
Ten or more severe wind reports: 80%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 60%
One or more hailstones of 2 inches or more: 50%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Apr 27, 1:07 PM CDT	Flash Flood Warning	LSX	Fayette, Montgomery	7 hr
Apr 27, 1:13 PM CDT	Tornado Warning	LSX	Madison	47 min
Apr 27, 1:25 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis	37 min
Apr 27, 1:49 PM CDT	Tornado Warning	LSX	Bond, Madison	14 min
Apr 27, 1:55 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	45 min
Apr 27, 2:01 PM CDT	Tornado Warning	LSX	Madison, Saint Clair	27 min
Apr 27, 2:05 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike, Warren	40 min
Apr 27, 2:22 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	38 min
Apr 27, 2:30 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Madison	27 min
Apr 27, 2:39 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Warren	51 min
Apr 27, 2:49 PM CDT	Tornado Warning	LSX	Saint Charles, Warren	41 min
Apr 27, 2:57 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Moniteau	48 min
Apr 27, 3:14 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey, Madison	46 min
Apr 27, 3:19 PM CDT	Tornado Warning	LSX	Calhoun, Jersey, Madison	41 min
Apr 27, 3:25 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway	42 min
Apr 27, 3:37 PM CDT	Flash Flood Warning	LSX	Boone	5 hr
Apr 27, 3:38 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Morgan	22 min
Apr 27, 3:41 PM CDT	Tornado Warning	LSX	Audrain, Callaway	49 min
Apr 27, 3:43 PM CDT	Severe Thunderstorm Warning	LSX	Boone	62 min
Apr 27, 3:46 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	44 min
Apr 27, 3:46 PM CDT	Tornado Warning	LSX	Boone	14 min
Apr 27, 3:52 PM CDT	Severe Thunderstorm Warning	LSX	Jersey, Macoupin, Madison	38 min
Apr 27, 4:00 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Moniteau	60 min
Apr 27, 4:07 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Pike, Ralls	53 min
Apr 27, 4:09 PM CDT	Tornado Warning	LSX	Audrain, Montgomery, Pike, Ralls	51 min
Apr 27, 4:13 PM CDT	Flash Flood Warning	LSX	Audrain	5 hr
Apr 27, 4:14 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	34 min
Apr 27, 4:14 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Hickory	32 min
Apr 27, 4:19 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	26 min
Apr 27, 4:20 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	55 min
Apr 27, 4:29 PM CDT	Tornado Warning	LSX	Boone, Callaway, Cole, Moniteau	46 min
Apr 27, 4:35 PM CDT	Flash Flood Warning	LSX	Monroe	5 hr
Apr 27, 4:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Christian, Greene, Lawrence	50 min
Apr 27, 4:46 PM CDT	Tornado Warning	LSX	Calhoun, Pike	44 min
Apr 27, 4:52 PM CDT	Flash Flood Warning	LSX	Adams, Pike	4 hr
Apr 27, 4:53 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk	52 min
Apr 27, 4:54 PM CDT	Tornado Warning	LSX	Audrain, Pike	21 min
Apr 27, 4:55 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Polk	24 min
Apr 27, 4:57 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike	63 min
Apr 27, 4:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Barry, Christian, Lawrence, Stone	48 min
Apr 27, 5:00 PM CDT	Tornado Warning	LSX	Pike	30 min
Apr 27, 5:00 PM CDT	Severe Thunderstorm Warning	SGF	Miller, Morgan	30 min
Apr 27, 5:09 PM CDT	Severe Thunderstorm Warning	LSX	Callaway	19 min
Apr 27, 5:14 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Osage	61 min
Apr 27, 5:14 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede	61 min
Apr 27, 5:15 PM CDT	Severe Thunderstorm Warning	SGF	Miller	19 min
Apr 27, 5:19 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash, Wayne, White	41 min
Apr 27, 5:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Christian, Douglas, Greene, Webster, Wright	56 min
Apr 27, 5:20 PM CDT	Flash Flood Warning	LSX	Brown, Pike	3 hr
Apr 27, 5:21 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Pike	39 min
Apr 27, 5:27 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene	33 min
Apr 27, 5:30 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene	32 min
Apr 27, 5:32 PM CDT	Flash Flood Warning	LSX	Jersey	5 hr
Apr 27, 5:32 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey, Macoupin	43 min
Apr 27, 5:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Camden, Laclede, Miller, Pulaski	39 min
Apr 27, 5:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Laclede, Pulaski	47 min
Apr 27, 5:47 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey	58 min
Apr 27, 5:50 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey, Macoupin	40 min
Apr 27, 5:55 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Warren	50 min
Apr 27, 5:56 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	49 min
Apr 27, 5:57 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Washington	48 min
Apr 27, 5:59 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey	46 min
Apr 27, 6:01 PM CDT	Tornado Warning	LSX	Jersey, Macoupin	44 min
Apr 27, 6:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Maries, Miller, Phelps, Pulaski	27 min
Apr 27, 6:09 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Macoupin	21 min
Apr 27, 6:09 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Warren	36 min
Apr 27, 6:10 PM CDT	Severe Thunderstorm Warning	SGF	Phelps, Pulaski	35 min
Apr 27, 6:15 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	60 min
Apr 27, 6:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Franklin, Jefferson	64 min
Apr 27, 6:28 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Calhoun, Fayette, Jersey, Macoupin, Madison and 1 more	47 min
Apr 27, 6:31 PM CDT	Tornado Warning	LSX	Franklin, Jefferson, Washington	59 min
Apr 27, 6:35 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Texas, Wright	40 min
Apr 27, 6:40 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis	48 min
Apr 27, 6:40 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps	35 min
Apr 27, 6:41 PM CDT	Tornado Warning	LSX	Calhoun, Jersey, Madison	32 min
Apr 27, 6:45 PM CDT	Severe Thunderstorm Warning	LSX	Crawford	45 min
Apr 27, 6:47 PM CDT	Flash Flood Warning	LSX	Macoupin	5 hr
Apr 27, 7:04 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Shannon, Texas	56 min
Apr 27, 7:06 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Howell, Oregon, Shannon, Texas	54 min
Apr 27, 7:09 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Macoupin, Madison, Montgomery	51 min
Apr 27, 7:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Douglas, Ozark, Taney	51 min
Apr 27, 7:12 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Madison, Monroe, Saint Clair	63 min
Apr 27, 7:16 PM CDT	Flash Flood Warning	LSX	Montgomery	5 hr
Apr 27, 7:22 PM CDT	Tornado Warning	LSX	Fayette, Montgomery	38 min
Apr 27, 7:24 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	51 min
Apr 27, 7:27 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Washington	48 min
Apr 27, 7:40 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Ozark	50 min
Apr 27, 7:42 PM CDT	Severe Thunderstorm Warning Destructive damage threat	SGF	Howell, Oregon, Shannon	63 min
Apr 27, 7:45 PM CDT	Tornado Warning	SGF	Howell, Oregon, Shannon	60 min
Apr 27, 7:50 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Madison, Marion	55 min
Apr 27, 7:52 PM CDT	Tornado Warning	LSX	Clinton, Saint Clair	38 min
Apr 27, 7:56 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Monroe, Randolph, Saint Clair, Washington	64 min
Apr 27, 7:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Shannon	32 min
Apr 27, 7:59 PM CDT	Flash Flood Warning	LSX	Fayette	6 hr
Apr 27, 8:00 PM CDT	Severe Thunderstorm Warning	LSX	Reynolds	25 min
Apr 27, 8:00 PM CDT	Tornado Warning	SGF	Shannon	30 min
Apr 27, 8:03 PM CDT	Tornado Warning	LSX	Sainte Genevieve, Saint Francois, Washington	29 min
Apr 27, 8:05 PM CDT	Tornado Warning	LSX	Reynolds	40 min
Apr 27, 8:15 PM CDT	Tornado Warning Tornado observed	LSX	Clinton, Fayette, Marion	45 min
Apr 27, 8:22 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon	53 min
Apr 27, 8:26 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson, Perry	64 min
Apr 27, 8:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Clinton, Fayette, Marion, Washington	37 min
Apr 27, 8:30 PM CDT	Tornado Warning	SGF	Howell, Oregon	45 min
Apr 27, 8:31 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	32 min
Apr 27, 8:43 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	32 min
Apr 27, 8:44 PM CDT	Tornado Warning	LSX	Marion	17 min
Apr 27, 8:45 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson, Wayne	60 min
Apr 27, 8:46 PM CDT	Tornado Warning	SGF	Oregon	14 min
Apr 27, 8:49 PM CDT	Severe Thunderstorm Warning	PAH	Perry	41 min
Apr 27, 8:55 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	30 min
Apr 27, 8:56 PM CDT	Tornado Warning	PAH	Wayne	34 min
Apr 27, 9:05 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jackson, Perry	55 min
Apr 27, 9:23 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Hamilton, Wabash, Wayne, White	67 min
Apr 27, 9:26 PM CDT	Tornado Warning	PAH	Edwards, Wabash, Wayne	34 min
Apr 27, 9:28 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	47 min
Apr 27, 9:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Jackson, Williamson	38 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, 5.8 hours before the alert went out and 260 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: 1944 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 759 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 564 m²/s²
0-3 km storm-relative helicity: 669 m²/s²
Significant tornado parameter: 4.7
Supercell composite: 19.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 27, 4:07 AM CDT	Severe Thunderstorm Watch	SPC	Alexander, Calhoun, Edwards, Franklin, Gallatin, Greene and 21 more	6 hr
Apr 27, 7:36 AM CDT	Mesoscale Discussion	SPC	Adams, Alexander, Bond, Calhoun, Clinton, Franklin and 24 more	84 min
Apr 27, 8:31 AM CDT	Severe Thunderstorm Watch	SPC	Adams, Bond, Brown, Cass, Champaign, Christian and 37 more	5 hr
Apr 27, 9:33 AM CDT	Mesoscale Discussion	SPC	Calhoun	117 min
Apr 27, 10:31 AM CDT	Mesoscale Discussion	SPC	Bond, Champaign, Christian, Clark, Clay, Clinton and 35 more	119 min
Apr 27, 11:12 AM CDT	Severe Thunderstorm Watch	SPC	Wabash	8 hr
Apr 27, 11:56 AM CDT	Mesoscale Discussion	SPC	Calhoun, Jersey, Macoupin, Madison, Monroe, Saint Clair	2 hr
Apr 27, 12:51 PM CDT	Tornado Watch	SPC	Champaign, Christian, Clark, Clay, Coles, Crawford and 15 more	4 hr
Apr 27, 1:44 PM CDT	Mesoscale Discussion	SPC	Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more	2 hr
Apr 27, 2:46 PM CDT	Tornado Watch PDS	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	7 hr
Apr 27, 3:55 PM CDT	Mesoscale Discussion	SPC	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 5 more	2 hr
Apr 27, 3:58 PM CDT	Mesoscale Discussion	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more	92 min
Apr 27, 4:41 PM CDT	Tornado Watch	SPC	Cass, Champaign, Christian, Clark, Clay, Coles and 20 more	6 hr
Apr 27, 6:18 PM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more	87 min
Apr 26, 7:40 PM CDT	Mesoscale Discussion	SPC	McDonald, Newton	65 min
Apr 26, 8:38 PM CDT	Mesoscale Discussion	SPC	Andrew, Buchanan, Clay, Clinton, DeKalb, Gentry and 3 more	2 hr
Apr 26, 9:11 PM CDT	Severe Thunderstorm Watch	SPC	Andrew, Bates, Buchanan, Carroll, Cass, Clay and 11 more	7 hr
Apr 26, 10:22 PM CDT	Mesoscale Discussion	SPC	Barry, Barton, Cedar, Christian, Dade, Dallas and 18 more	113 min
Apr 26, 10:56 PM CDT	Mesoscale Discussion	SPC	McDonald	94 min
Apr 27, 12:50 AM CDT	Mesoscale Discussion	SPC	Crawford, Dent, Franklin, Gasconade, Iron, Osage and 3 more	55 min
Apr 27, 1:39 AM CDT	Mesoscale Discussion	SPC	Cass, Clay, Jackson, Platte	96 min
Apr 27, 3:24 AM CDT	Mesoscale Discussion	SPC	Caldwell, Carroll, Cass, Chariton, Clay, Clinton and 13 more	96 min
Apr 27, 3:46 AM CDT	Severe Thunderstorm Watch	SPC	Bates, Benton, Buchanan, Caldwell, Carroll, Cass and 21 more	6 hr
Apr 27, 5:59 AM CDT	Mesoscale Discussion	SPC	Cass, Cooper, Johnson, Lafayette, Pettis, Saline	91 min
Apr 27, 1:55 PM CDT	Mesoscale Discussion	SPC	Barry, Barton, Bates, Cass, Cedar, Dade and 7 more	95 min
Apr 27, 2:07 PM CDT	Severe Thunderstorm Watch	SPC	Barry, Barton, Bates, Cass, Cedar, Cooper and 14 more	7 hr

Nearby

Tornado Watches in Missouri, 2026 Tornado Watches in Illinois, 2026 Every tornado watch in 2026

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.