Alert archive / Iowa / Severe Thunderstorm Warnings / 1986
Severe Thunderstorm Warnings in Iowa, July 1986
73 severe thunderstorm warnings in July 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in July 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 73
- Busiest day
- July 29, 198624 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 6:35 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 55 min |
| Jul 8, 5:55 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 55 min |
| Jul 8, 6:39 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 51 min |
| Jul 8, 6:57 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 33 min |
| Jul 8, 7:08 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 37 min |
| Jul 8, 7:28 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 36 min |
| Jul 8, 7:35 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 25 min |
| Jul 8, 8:25 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 22 min |
| Jul 8, 9:20 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 40 min |
| Jul 8, 10:45 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Monroe | 30 min |
| Jul 12, 12:26 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 64 min |
| Jul 12, 12:26 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 26 min |
| Jul 12, 1:29 AM CDT | Severe Thunderstorm Warning | DMX | Clarke | 46 min |
| Jul 13, 7:44 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 61 min |
| Jul 13, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 65 min |
| Jul 13, 7:57 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 63 min |
| Jul 13, 9:19 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 56 min |
| Jul 13, 9:40 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 35 min |
| Jul 13, 10:13 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 32 min |
| Jul 13, 10:36 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 39 min |
| Jul 13, 11:04 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union | 36 min |
| Jul 13, 11:40 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas | 60 min |
| Jul 14, 12:15 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Wayne | 45 min |
| Jul 14, 12:58 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 62 min |
| Jul 14, 3:00 AM CDT | Severe Thunderstorm Warning | DMX | Adair | 30 min |
| Jul 14, 9:18 AM CDT | Severe Thunderstorm Warning | DMX | Clay | 42 min |
| Jul 15, 12:05 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 35 min |
| Jul 15, 12:11 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 29 min |
| Jul 19, 5:04 AM CDT | Severe Thunderstorm Warning | DMX | Buena Vista | 41 min |
| Jul 19, 5:35 PM CDT | Severe Thunderstorm Warning | DVN | Louisa | 40 min |
| Jul 24, 6:30 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 60 min |
| Jul 24, 7:17 PM CDT | Severe Thunderstorm Warning | FSD | Monona | 58 min |
| Jul 24, 7:19 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 26 min |
| Jul 24, 7:33 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 57 min |
| Jul 24, 8:24 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 26 min |
| Jul 24, 9:55 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 35 min |
| Jul 24, 10:33 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 27 min |
| Jul 24, 11:42 PM CDT | Severe Thunderstorm Warning | DMX | Iowa, Johnson, Linn | 33 min |
| Jul 27, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 44 min |
| Jul 27, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Howard, Winneshiek | 48 min |
| Jul 27, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Allamakee | 48 min |
| Jul 27, 8:53 PM CDT | Severe Thunderstorm Warning | DMX | Floyd | 62 min |
| Jul 27, 9:13 PM CDT | Severe Thunderstorm Warning | DVN | Clayton | 62 min |
| Jul 27, 9:32 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Chickasaw | 58 min |
| Jul 28, 6:24 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 66 min |
| Jul 28, 6:28 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 62 min |
| Jul 28, 6:58 PM CDT | Severe Thunderstorm Warning | DMX | Dickinson | 62 min |
| Jul 28, 7:03 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 57 min |
| Jul 28, 7:03 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 57 min |
| Jul 28, 7:07 PM CDT | Severe Thunderstorm Warning | DMX | Clay | 63 min |
| Jul 28, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 61 min |
| Jul 28, 8:02 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 58 min |
| Jul 28, 8:51 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Webster | 64 min |
| Jul 28, 9:02 PM CDT | Severe Thunderstorm Warning | FSD | Monona | 58 min |
| Jul 28, 9:22 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 58 min |
| Jul 28, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 42 min |
| Jul 28, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Hamilton | 42 min |
| Jul 28, 10:14 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 46 min |
| Jul 28, 10:14 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 46 min |
| Jul 28, 10:31 PM CDT | Severe Thunderstorm Warning | DMX | Warren | 49 min |
| Jul 28, 10:31 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 49 min |
| Jul 28, 10:46 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 54 min |
| Jul 28, 10:54 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas | 46 min |
| Jul 28, 11:16 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe | 44 min |
| Jul 28, 11:16 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 44 min |
| Jul 28, 11:22 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 98 min |
| Jul 28, 11:47 PM CDT | Severe Thunderstorm Warning | DMX | Keokuk, Wapello | 43 min |
| Jul 28, 11:47 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 43 min |
| Jul 29, 12:10 AM CDT | Severe Thunderstorm Warning | DMX | Jefferson, Van Buren | 50 min |
| Jul 29, 12:43 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 47 min |
| Jul 29, 12:50 AM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 55 min |
| Jul 30, 10:54 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 66 min |
| Jul 30, 11:15 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 37 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clarke County5
- Harrison County4
- Pottawattamie County4
- Cass County4
- Adair County4
- Guthrie County3
- Appanoose County3
- Lucas County3
- Wayne County3
- Polk County3
- Shelby County2
- Audubon County2
- Scott County2
- Poweshiek County2
- Monroe County2
- Madison County2
- Decatur County2
- Clay County2
- Plymouth County2
- Woodbury County2
- Monona County2
- Pocahontas County2
- Dallas County2
- O'Brien County2
- Sioux County2
- Black Hawk County1
- Cedar County1
- Clinton County1
- Muscatine County1
- Union County1
- Kossuth County1
- Winnebago County1
- Buena Vista County1
- Louisa County1
- Cherokee County1
- Iowa County1
- Johnson County1
- Linn County1
- Howard County1
- Winneshiek County1
27 more counties
- Allamakee County1
- Floyd County1
- Clayton County1
- Bremer County1
- Chickasaw County1
- Dickinson County1
- Osceola County1
- Lyon County1
- Calhoun County1
- Webster County1
- Carroll County1
- Greene County1
- Boone County1
- Hamilton County1
- Story County1
- Warren County1
- Marshall County1
- Marion County1
- Mahaska County1
- Keokuk County1
- Wapello County1
- Davis County1
- Jefferson County1
- Van Buren County1
- Des Moines County1
- Henry County1
- Lee County1
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.