National Weather Service United States Department of Commerce
Radar loop of the tornado event. The top left image is base reflectivity (Z) and the top right image is storm-relative velocity (SRV). The bottom two images are correlation coefficient (CC) and spectrum width (SW). Low values of CC, combined with a SRV couplet or on a convergence zone, are a strong indicator of debris being lofted by a tornado. High values of SW can also denote the presence of a circulation.

Total Iowa Tornadoes: 40

EF0 (11)
EF1 (12)
EF2 (6)
EF3 (1)
EF4 (1)
EF5 (0)
EFU*(9)
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***ALL DATA ON THIS PAGE IS PRELIMINARY AND MAY CHANGE AT ANY TIME***
This page will be updated as time and resources allow and may not contain information from recent events
Information last updated on 08/10/2022

Above is a map of the tornadoes that occurred across Iowa in 2022. Mouse over each icon to view more information on that tornado, which will appear in the box to the right. A season summary and table of these tornadoes is provided below. Detailed KMZ files for many of the tracks can be downloaded and viewed in Google Earth by clicking on the appropriate icon in the table below. To download the full year map shown above, click the download button below.

Please note: Track lines and contours are often interpolated and may not encompass the full extent of the damage. Surveying procedures vary between NWS offices. Downloadable tracks may not be available for weak tornadoes that were not surveyed.

*EFU - EF Unknown rating. This is used in instances that a tornado does not impact damage indicators used to assigned an EF rating.


2022 Iowa Tornado Summary  

      The 2022 tornado season started much like the 2021 season ended, with several tornadoes during a cool season event.  The event on March 5th was a very impressive start to the season with a total of fifteen tornadoes of which one was a long track EF4, the first EF4 in Iowa since 2013.  Unfortunately, this tornado produced six deaths near Winterset along with five injuries.  The entire path length was just over 70.5 miles, becoming one of the longest tornadoes of the past 40 years.  The path was uninterrupted from just northwest of Macksburg in Madison county to northeast of Newton in Jasper county.  The tornado grazed several larger communities along its path, passing just south of Winterset, Norwalk, Des Moines and Colfax and just to the north and west of Lambs Grove and Newton.  Another deadly tornado occurred near Chariton with an individual killed in a campground at Red Haw State Park.  The total of fifteen tornadoes makes it one of the earliest outbreaks with that total that high so early in the season.  

      About a month later on April 12th, another round of tornadoes struck the state with another thirteen spin-ups across Iowa.  The first tornado of the day was near Palmer in Pocahontas county with this tornado producing one injury.  This tornado was followed closely by another two tornadoes west of Humboldt near Rutland.  Both of these tornadoes moved northwest initially upon forming then curled back to the northeast before dissipating.  Several other tornadoes occurred on this evening, mostly in northern Iowa however two tornadoes did occur in west central Iowa near Missouri Valley and Woodbine.  Fortunately, most of the tornadoes on this day remained in rural areas with the bulk of damage done to telephone poles, trees and a few outbuildings.  Three more tornadoes occurred on April 23rd between Des Moines and Ames near the towns of Madrid and Sheldahl.  Once again, the paths remained largely in rural areas impacting only a few farmsteads and producing only minor damage.  

     The peak of tornado season is normally in May and June, however 2022 was another year where these months were relatively inactive.  May saw only three tornadoes with one occurring on May 12th near Sergeant Bluff and was observed crossing Interstate 29 south of town.  The other two occurred on May 30th in far northwest Iowa.  One of these passed through the southeast side of Doon, IA producing only minor damage.  A total of one tornado occurred in June south of Treynor.  This tornado remained in rural areas with little damage.   July saw another five tornadoes with only one producing damage.  This tornado occurred west of Estherville on July 5th with minor tree damage occurring at a couple of farmsteads.  The other four tornadoes occurred in rural cropland and were rated EFU since they did not impact any damage indicators.        

  

    


 

 

 

2022 Iowa Tornado Listing
Click each date for storm survey or event summaries (for select events)
# Date Time - Local
(CDT/CST)
Counties Start Location EF Rating Path
Length
Injuries/
Deaths
KMZ File Survey
Office
1. 03/05/2022 3:02pm - 3:02pm Montgomery East of Emerson EF0 0.01 mi 0/0   OAX
2. 03/05/2022 3:38pm - 3:40pm Adams 2.1 ESE of Brooks EFU 1.48 mi 0/0 DMX

3.

03/05/2022 4:01pm - 4:05pm Adams/Union 4.5 S of Nevinville EF0 2.84 mi 0/0 DMX
4. 03/05/2022 4:26pm - 6:00pm Madison/Warren/Polk/Jasper 1.4 NW of Macksburg EF4 70.57 mi 5/6 DMX
5. 03/05/2022 5:07pm - 5:33pm Decatur/Wayne/Lucas 2.3 NNE of Leon EF2 19.42 mi 0/0 DMX
6. 03/05/2022 5:20pm - 5:24pm Decatur/Wayne 1.7 NNE of Garden Grove EFU 2.07 mi 0/0 DMX
7. 03/05/2022 5:28pm - 5:33pm Lucas 2.0 SSE of Derby EFU 2.07 mi 0/0 DMX
8. 03/05/2022 5:33pm - 5:53pm Lucas 3.5 ENE of Derby EF3 11.28 mi 1/1 DMX
9. 03/05/2022 5:38pm - 5:51pm Wayne 1.5 SW of Allerton EF2 9.87 mi 0/0 DMX
10. 03/05/2022 5:40pm - 5:42pm Lucas 2.7 S Chariton EF0 0.65 mi 0/0 DMX
11. 03/05/2022 6:04pm - 6:28pm Jasper/Poweshiek/Tama 3.2WNW of Kellogg EF2 17.31 mi 0/0 DMX
12. 03/05/2022 6:33pm - 6:42pm Tama 4.3 SW of Tama Airport EF2 8.54 mi 0/0 DMX
13. 03/05/2022 7:10pm - 7:26pm Benton 3.2 SW of Garrison EF1 14.04 mi 0/0 DVN
14. 03/05/2022 8:37pm - 8:38pm Scott 2.8 NE of Blue Grass EF0 0.12 mi 0/0 DVN
15. 03/05/2022 8:37pm - 8:41pm Scott 3.7 ENE of Blue Grass EF1 4.16 mi 0/0 DVN
16. 4/12/2022 6:15pm - 6:33pm Pocahontas 3.1 ENE of Palmer EF2 7.43 mi 1/0 DMX
17. 4/12/2022 6:28pm - 6:37pm Humboldt 0.4 SW of Unique EF1 4.61 mi 0/0 DMX
18. 4/12/2022 6:39pm - 6:50pm Humboldt 2.3 NW of Rutland EF2 5.55 mi 0/0 DMX
19. 4/12/2022 7:33pm - 7:36pm Hancock 1.9 W of Kanawha EF0 1.66 mi 0/0 DMX
20. 4/12/2022 9:08pm - 9:18pm Harrison 2.3 SE of Missouri Valley EF1 9.55 mi 0/0 OAX
21. 4/12/2022 9:25pm - 9:28pm Harrison 2.0 SSE of Woodbine EF1 2.30 mi 0/0 OAX
22. 4/12/2022 10:26pm - 10:32pm Cerro Gordo 2.5 S of Mason City EF1 4.56 mi 0/0 DMX
23. 4/12/2022 10:34pm - 10:36pm Worth 3.5 S of Grafton EF1 1.20 mi 0/0 DMX
24. 4/12/2022 10:41pm - 10:48pm Floyd/Mitchell 2.9 NW of Rudd EF0 8.17 mi 0/0 ARX
25. 4/12/2022 10:57pm - 11:00pm Mitchell 1.8 SW of Brownville EF1 2.83 mi 0/0 ARX
26. 4/12/2022 10:57pm - 11:09pm Mitchell/Howard 1.9 S of New Haven EF1 9.23 mi 0/0 ARX
27. 4/12/2022 11:10pm - 11:16pm Howard 2.8 WNW of Maple Leaf EF0 4.69 mi 0/0 ARX
28. 4/12/2022 11:36pm - 11:37pm Winneshiek 0.8 W of Ridgeway EF0 0.61 mi 0/0 ARX
29. 4/23/2022 6:21pm - 6:32pm Polk/Boone/Story 6.9 NW of Polk City EF1 9.09 mi 0/0 DMX
30. 4/23/2022 6:23pm - 6:28pm Polk/Boone 5.8 NW of Crocker EFU 3.93 mi 0/0 DMX
31. 4/23/2022 6:24pm - 6:27pm Polk 1.8 WNW of Crocker EF0 2.43 mi 0/0 DMX
32. 5/12/2022 7:01pm - 7:02pm Woodbury 2.9 S of Sergeant Bluff EFU 0.08 mi 0/0 FSD
33. 5/30/2022 2:17am - 2:19am Lyon 4.7 W of Rock Rapids EF1 1.94 mi 0/0 FSD
34. 5/30/2022 2:21am - 2:22am Lyon 0.5 SSW of Doon EF0 0.54 mi 0/0 FSD
35. 6/15/2022 12:18am - 12:25am Pottawattamie 2.8 S of Treynor EF1 2.38 mi 0/0 OAX
36. 7/5/2022 5:37pm - 5:42pm Emmet 2.1 W of Estherville EF0 1.69 mi 0/0 DMX
37 7/5/2022 8:44pm - 8:46pm Buchanan 1.9 ESE of Fairbank EFU 1.37mi 0/0 DVN
38. 7/5/2022 9:00pm - 9:01pm Buchanan 1.3 WNW of Winthrop EFU 0.67mi 0/0 DVN
39. 7/7/2022 2:32pm - 2:34pm Carroll 3.4 S of Templeton EFU 0.36 mi 0/0 DMX
40. 7/7/2022 5:17pm - 5:19pm Hardin 1.2 NW of Eagle City EFU 0.33 mi 0/0 DMX

 



* Red entries indicate that the information is still under review

 

 

Track lengths use polylines created in the NWS Damage Assessment Toolkit when available, which may be longer than the official Storm Data track (derived from start and end points only).