Alert archive / Iowa / 1986
Weather alerts in Iowa, September 1986
40 weather alerts in September 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in September 1986. Tap one for its archive.
- Alerts
- 40
- Warnings
- 40
- Watches
- 0
- Advisories
- 0
- Busiest day
- September 22, 19868 alerts
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 19, 1:00 AM CDT | Flash Flood Warning | DMX | Ringgold | 3 hr |
| Sep 19, 8:06 AM CDT | Flash Flood Warning | DMX | Lucas | 4 hr |
| 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 20, 11:06 AM CDT | Flash Flood Warning | DMX | Marion | 114 min |
| Sep 20, 11:06 AM CDT | Flash Flood Warning | DMX | Iowa, Keokuk, Mahaska, Poweshiek | 114 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 26, 8:17 PM CDT | Tornado Warning | DMX | Hamilton, Hardin | 28 min |
| Sep 26, 8:47 PM CDT | Tornado Warning | DMX | Webster, Wright | 23 min |
| Sep 28, 5:24 PM CDT | Tornado Warning | FSD | Sioux | 36 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, 5:51 PM CDT | Tornado Warning | DMX | Jasper, Marshall | 24 min |
| Sep 28, 6:05 PM CDT | Severe Thunderstorm Warning | FSD | Osceola, Sioux | 55 min |
| Sep 28, 6:18 PM CDT | Tornado Warning | DMX | Jasper | 22 min |
| Sep 28, 6:56 PM CDT | Tornado Warning | DMX | Tama | 34 min |
| Sep 28, 7:12 PM CDT | Tornado Warning | DMX | Clay | 33 min |
| Sep 28, 7:15 PM CDT | Tornado Warning | DMX | Webster | 30 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 |
| Sep 28, 8:51 PM CDT | Tornado Warning | DMX | Polk | 29 min |
| Sep 28, 9:17 PM CDT | Tornado Warning | DMX | Jasper | 33 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 26 |
| Tornado Warning | 10 |
| Flooding | |
| Flash Flood Warning | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hamilton County4
- Jasper County4
- Hardin County3
- Ringgold County2
- Lucas County2
- Iowa County2
- Poweshiek County2
- Mills County2
- Pottawattamie County2
- Adams County2
- Taylor County2
- Union County2
- Clarke County2
- Webster County2
- Sioux County2
- Marshall County2
- Polk County2
- Jones County1
- Dubuque County1
- Cass County1
- Adair County1
- Woodbury County1
- Story County1
- Marion County1
- Keokuk County1
- Mahaska County1
- Fremont County1
- Page County1
- Decatur County1
- Humboldt County1
- Cerro Gordo County1
- Hancock County1
- Wright County1
- Lyon County1
- Osceola County1
- Tama County1
- Clay County1
- Harrison County1
- Benton County1
- Dallas 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. Rebuilt daily.