Alert archive / Iowa / Tornado Watches in 2024
Tornado Watch 142
The Storm Prediction Center issued this tornado watch at Apr 26, 2024, 3:47 PM CDT for 33 counties in Iowa; 20 counties in Kansas; 17 counties in Missouri. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2024, 3:47 PM CDT (20:47 UTC)
- Expired
- Apr 27, 2024, 12:00 AM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 70 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Boone County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Greene County, IA, Guthrie County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Anderson County, KS, Atchison County, KS, Brown County, KS, Coffey County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Miami County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Shawnee County, KS, Wabaunsee County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Bates County, MO, Buchanan County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Jackson County, MO, Nodaway County, MO, Platte County, MO, Worth County, MO
The radar
The Omaha radar (KOAX), 155 km from the middle of the area, began a volume at 20:51 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
- 60%
- One or more EF2 to EF5 tornadoes
- 40%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 70%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
42 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 4:12 PM CDT | Severe Thunderstorm Warning | TOP | Nemaha | 17 min |
| Apr 26, 4:35 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Nemaha | 25 min |
| Apr 26, 4:48 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 57 min |
| Apr 26, 5:01 PM CDT | Severe Thunderstorm Warning | TOP | Brown | 44 min |
| Apr 26, 5:24 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Holt | 51 min |
| Apr 26, 5:27 PM CDT | Tornado Warning | TOP | Brown | 18 min |
| Apr 26, 5:40 PM CDT | Severe Thunderstorm Warning | EAX | Holt | 35 min |
| Apr 26, 5:52 PM CDT | Severe Thunderstorm Warning | EAX | Nodaway | 53 min |
| Apr 26, 5:55 PM CDT | Severe Thunderstorm Warning | EAX | Linn | 50 min |
| Apr 26, 6:04 PM CDT | Tornado Warning | EAX | Atchison, Holt, Nodaway | 26 min |
| Apr 26, 6:07 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 38 min |
| Apr 26, 6:12 PM CDT | Tornado Warning | EAX | Bates | 33 min |
| Apr 26, 6:15 PM CDT | Tornado Warning | DMX | Adams, Taylor | 45 min |
| Apr 26, 6:16 PM CDT | Tornado Warning | DMX | Carroll, Crawford | 44 min |
| Apr 26, 6:21 PM CDT | Tornado Warning | DMX | Adams, Taylor | 39 min |
| Apr 26, 6:36 PM CDT | Severe Thunderstorm Warning | EAX | Gentry, Nodaway, Worth | 39 min |
| Apr 26, 6:42 PM CDT | Tornado Warning | EAX | Bates, Henry | 48 min |
| Apr 26, 6:43 PM CDT | Tornado Warning | DMX | Crawford | 47 min |
| Apr 26, 6:45 PM CDT | Severe Thunderstorm Warning | EAX | Bates | 30 min |
| Apr 26, 6:54 PM CDT | Tornado Warning | DMX | Adair, Adams, Union | 51 min |
| Apr 26, 6:56 PM CDT | Tornado Warning | DMX | Adams, Ringgold, Taylor, Union | 49 min |
| Apr 26, 6:56 PM CDT | Tornado Warning | DMX | Carroll, Crawford | 34 min |
| Apr 26, 7:09 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Henry | 51 min |
| Apr 26, 7:13 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 47 min |
| Apr 26, 7:13 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 47 min |
| Apr 26, 7:16 PM CDT | Tornado Warning | DMX | Adair, Madison, Union | 44 min |
| Apr 26, 7:21 PM CDT | Tornado Warning | DMX | Ringgold | 39 min |
| Apr 26, 7:25 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Calhoun, Carroll, Crawford, Greene, Pocahontas and 2 more | 50 min |
| Apr 26, 7:29 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 46 min |
| Apr 26, 7:36 PM CDT | Severe Thunderstorm Warning | EAX | Nodaway, Worth | 39 min |
| Apr 26, 7:43 PM CDT | Tornado Warning | DMX | Adair, Clarke, Madison, Union | 47 min |
| Apr 26, 7:56 PM CDT | Tornado Warning | DMX | Madison, Warren | 49 min |
| Apr 26, 7:58 PM CDT | Tornado Warning | DMX | Clarke, Decatur, Ringgold, Union | 47 min |
| Apr 26, 8:10 PM CDT | Tornado Warning | DMX | Clarke, Madison, Union | 35 min |
| Apr 26, 8:20 PM CDT | Tornado Warning | DMX | Dallas, Madison, Polk, Warren | 25 min |
| Apr 26, 8:38 PM CDT | Tornado Warning | DMX | Clarke, Ringgold, Union | 29 min |
| Apr 26, 8:40 PM CDT | Tornado Warning | DMX | Clarke, Lucas, Marion, Warren | 50 min |
| Apr 26, 8:49 PM CDT | Tornado Warning | DMX | Jasper, Marion, Polk, Warren | 41 min |
| Apr 26, 9:09 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Webster | 17 min |
| Apr 26, 9:14 PM CDT | Tornado Warning | DMX | Jasper, Marion, Warren | 46 min |
| Apr 26, 9:47 PM CDT | Tornado Warning | DMX | Jasper | 28 min |
| Apr 26, 11:02 PM CDT | Tornado Warning | DMX | Polk | 21 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
- Mesoscale Discussion 526 Severe potential...tornado watch likely
- Mesoscale Discussion 528 Severe potential...watch unlikely
- Mesoscale Discussion 530 Tornado watch 140
- Mesoscale Discussion 531 Severe potential...watch possible
- Mesoscale Discussion 534 Tornado watch 140...142
- Mesoscale Discussion 535 Tornado watch 142
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 8.8 hours before the alert went out and 155 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 565 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 518 m²/s²
- 0-3 km storm-relative helicity
- 707 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 12:21 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Pottawattamie | 54 min |
| Apr 26, 12:52 PM CDT | Tornado Watch | SPC | Fremont, Harrison, Ida, Mills, Monona, Montgomery and 4 more | 6 hr |
| Apr 26, 1:04 PM CDT | Mesoscale Discussion | SPC | Boone, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 18 more | 86 min |
| Apr 26, 2:31 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Pottawattamie | 89 min |
| Apr 26, 5:36 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Carroll, Cass, Crawford and 14 more | 84 min |
| Apr 25, 7:42 PM CDT | Mesoscale Discussion | SPC | Finney, Grant, Gray, Hamilton, Haskell, Kearny and 9 more | 2 hr |
| Apr 25, 7:48 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Gove, Graham, Norton, Rawlins and 2 more | 57 min |
| Apr 25, 9:35 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Graham, Jewell, Norton, Phillips and 5 more | 55 min |
| Apr 25, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Graham, Jewell, Norton, Phillips and 5 more | 3 hr |
| Apr 26, 12:06 AM CDT | Mesoscale Discussion | SPC | Norton | 54 min |
| Apr 26, 12:53 PM CDT | Mesoscale Discussion | SPC | Chautauqua | 2 hr |
| Apr 26, 2:12 PM CDT | Tornado Watch | SPC | Allen, Bourbon, Chautauqua, Cherokee, Cowley, Crawford and 7 more | 6 hr |
| Apr 26, 2:46 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Chase, Coffey and 17 more | 119 min |
| Apr 26, 7:35 AM CDT | Mesoscale Discussion | SPC | Barry, McDonald, Newton | 115 min |
| Apr 26, 3:14 PM CDT | Mesoscale Discussion | SPC | Butler, Cass, Colfax, Dodge, Douglas, Johnson and 5 more | 61 min |
Nearby
Tornado Watches in Iowa, 2024Tornado Watches in Kansas, 2024Tornado Watches in Missouri, 2024Every 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.