Alert archive / Iowa / Severe Thunderstorm Warnings / 1986
Severe Thunderstorm Warnings in Iowa, September 1986
26 severe thunderstorm warnings in September 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 September 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 26
- Busiest day
- September 22, 19868 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 |
|---|---|---|---|---|
| Sep 10, 6:00 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 30 min |
| Sep 10, 6:00 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 45 min |
| Sep 18, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 20 min |
| Sep 18, 7:32 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 48 min |
| Sep 20, 7:16 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 44 min |
| Sep 20, 7:39 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 36 min |
| Sep 20, 8:17 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 28 min |
| Sep 20, 8:42 AM CDT | Severe Thunderstorm Warning | DMX | Hardin, Story | 28 min |
| Sep 20, 10:52 AM CDT | Severe Thunderstorm Warning | DMX | Iowa, Poweshiek | 28 min |
| Sep 22, 11:32 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 58 min |
| Sep 22, 2:54 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 66 min |
| Sep 22, 2:55 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 55 min |
| Sep 22, 3:37 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Union | 53 min |
| Sep 22, 3:50 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 50 min |
| Sep 22, 3:53 PM CDT | Severe Thunderstorm Warning | OAX | Page | 67 min |
| Sep 22, 3:55 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas | 65 min |
| Sep 22, 4:33 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Union | 41 min |
| Sep 26, 6:56 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 44 min |
| Sep 26, 7:06 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 54 min |
| Sep 26, 8:02 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin | 28 min |
| Sep 28, 5:42 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 63 min |
| Sep 28, 5:45 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 30 min |
| Sep 28, 6:05 PM CDT | Severe Thunderstorm Warning | FSD | Osceola, Sioux | 55 min |
| Sep 28, 7:25 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 35 min |
| Sep 28, 7:26 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 34 min |
| Sep 28, 8:34 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 26 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hamilton County3
- Hardin County2
- Mills County2
- Pottawattamie County2
- Adams County2
- Taylor County2
- Union County2
- Clarke County2
- Jones County1
- Dubuque County1
- Cass County1
- Adair County1
- Woodbury County1
- Story County1
- Iowa County1
- Poweshiek County1
- Fremont County1
- Ringgold County1
- Page County1
- Lucas County1
- Decatur County1
- Humboldt County1
- Cerro Gordo County1
- Hancock County1
- Lyon County1
- Jasper County1
- Marshall County1
- Osceola County1
- Sioux County1
- Harrison County1
- Benton County1
- Dallas County1
- Polk 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.