Alert archive / Iowa / 1991
Weather alerts in Iowa, May 1991
100 weather alerts in May 1991, 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 May 1991. Tap one for its archive.
- Alerts
- 100
- Warnings
- 100
- Watches
- 0
- Advisories
- 0
- Busiest day
- May 14, 199131 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 |
|---|---|---|---|---|
| May 4, 8:17 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Union | 41 min |
| May 12, 10:24 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 16 min |
| May 13, 12:46 AM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 29 min |
| May 13, 1:12 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 43 min |
| May 13, 4:04 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Monroe | 20 min |
| May 13, 4:24 AM CDT | Severe Thunderstorm Warning | DMX | Winneshiek | 36 min |
| May 13, 6:26 AM CDT | Severe Thunderstorm Warning | DVN | Clayton | 34 min |
| May 14, 6:26 AM CDT | Severe Thunderstorm Warning | DVN | Clayton | 34 min |
| May 14, 8:33 AM CDT | Severe Thunderstorm Warning | DMX | Lucas | 42 min |
| May 14, 8:44 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Story | 46 min |
| May 14, 9:03 AM CDT | Severe Thunderstorm Warning | DMX | Boone | 42 min |
| May 14, 9:15 AM CDT | Severe Thunderstorm Warning | DMX | Lucas | 45 min |
| May 14, 9:43 AM CDT | Severe Thunderstorm Warning | DMX | Marshall | 47 min |
| May 14, 10:00 AM CDT | Severe Thunderstorm Warning | DMX | Wayne | 45 min |
| May 14, 10:36 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 69 min |
| May 14, 10:50 AM CDT | Severe Thunderstorm Warning | DMX | Wayne | 40 min |
| May 14, 11:05 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 40 min |
| May 14, 11:17 AM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 58 min |
| May 14, 11:26 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 64 min |
| May 14, 12:04 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 38 min |
| May 14, 12:34 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 41 min |
| May 14, 12:43 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 47 min |
| May 14, 1:01 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 44 min |
| May 14, 1:12 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 33 min |
| May 14, 1:30 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 45 min |
| May 14, 1:38 PM CDT | Tornado Warning | DVN | Delaware | 37 min |
| May 14, 1:40 PM CDT | Tornado Warning | DMX | Linn | 35 min |
| May 14, 1:52 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 21 min |
| May 14, 2:01 PM CDT | Tornado Warning | DVN | Dubuque | 29 min |
| May 14, 2:24 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 66 min |
| May 14, 2:45 PM CDT | Tornado Warning | DVN | Cedar | 30 min |
| May 14, 3:23 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine | 67 min |
| May 14, 3:37 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 68 min |
| May 14, 5:05 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 40 min |
| May 14, 5:22 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 68 min |
| May 14, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 41 min |
| May 14, 6:42 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 63 min |
| May 14, 6:56 PM CDT | Tornado Warning | DMX | Polk | 34 min |
| May 14, 7:10 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 42 min |
| May 14, 8:07 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 33 min |
| May 15, 3:23 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 22 min |
| May 16, 7:33 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 42 min |
| May 16, 8:36 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 39 min |
| May 17, 1:54 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 36 min |
| May 17, 2:05 PM CDT | Tornado Warning | DMX | Hamilton, Wright | 25 min |
| May 17, 2:35 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 40 min |
| May 17, 3:01 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 44 min |
| May 17, 3:17 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 58 min |
| May 17, 3:46 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 59 min |
| May 17, 3:53 PM CDT | Tornado Warning | DMX | Johnson | 37 min |
| May 17, 3:59 PM CDT | Tornado Warning | DVN | Muscatine | 31 min |
| May 17, 4:12 PM CDT | Tornado Warning | DMX | Hamilton, Webster | 33 min |
| May 17, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 44 min |
| May 17, 4:19 PM CDT | Tornado Warning | DVN | Scott | 41 min |
| May 17, 4:22 PM CDT | Severe Thunderstorm Warning | DMX | Floyd | 38 min |
| May 17, 4:22 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Grundy | 68 min |
| May 17, 4:48 PM CDT | Tornado Warning | DVN | Muscatine | 27 min |
| May 17, 4:55 PM CDT | Tornado Warning | DMX | Wright | 50 min |
| May 17, 5:02 PM CDT | Tornado Warning | DVN | Scott | 28 min |
| May 17, 5:14 PM CDT | Severe Thunderstorm Warning | DMX | Benton, Iowa | 46 min |
| May 17, 5:27 PM CDT | Severe Thunderstorm Warning | DMX | Van Buren | 48 min |
| May 17, 5:36 PM CDT | Severe Thunderstorm Warning | DMX | Iowa, Johnson, Linn | 69 min |
| May 17, 5:45 PM CDT | Flash Flood Warning | DMX | Hamilton, Hardin, Humboldt, Webster, Wright | 4 hr |
| May 17, 6:13 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 62 min |
| May 17, 6:21 PM CDT | Flash Flood Warning | DVN | Scott | 2 hr |
| May 25, 8:33 PM CDT | Severe Thunderstorm Warning | OAX | Page | 24 min |
| May 25, 9:26 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 44 min |
| May 25, 10:53 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Union | 67 min |
| May 27, 8:14 PM CDT | Tornado Warning | DMX | Mitchell | 41 min |
| May 28, 12:04 AM CDT | Severe Thunderstorm Warning | DMX | Carroll | 41 min |
| May 28, 12:35 AM CDT | Severe Thunderstorm Warning | FSD | Monona | 55 min |
| May 28, 12:52 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 44 min |
| May 28, 3:26 AM CDT | Severe Thunderstorm Warning | DMX | Webster | 49 min |
| May 28, 3:58 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Wright | 47 min |
| May 28, 4:18 AM CDT | Severe Thunderstorm Warning | DMX | Franklin | 57 min |
| May 28, 4:29 AM CDT | Severe Thunderstorm Warning | DMX | Hardin | 46 min |
| May 28, 5:09 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Grundy | 51 min |
| May 28, 5:30 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 30 min |
| May 29, 1:19 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 56 min |
| May 29, 1:19 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 56 min |
| May 29, 1:33 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 27 min |
| May 29, 2:00 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 60 min |
| May 29, 2:26 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 49 min |
| May 29, 2:50 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 25 min |
| May 29, 3:58 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 62 min |
| May 29, 9:02 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 28 min |
| May 29, 9:22 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 48 min |
| May 29, 10:56 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 64 min |
| May 31, 5:06 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin | 54 min |
| May 31, 5:34 AM CDT | Severe Thunderstorm Warning | DMX | Franklin | 56 min |
| May 31, 8:22 AM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler | 68 min |
| May 31, 9:23 AM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 67 min |
| May 31, 10:39 AM CDT | Severe Thunderstorm Warning | DVN | Jones | 66 min |
| May 31, 10:57 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 63 min |
| May 31, 10:59 AM CDT | Severe Thunderstorm Warning | DMX | Marshall | 31 min |
| May 31, 11:18 AM CDT | Severe Thunderstorm Warning | DVN | Jones | 42 min |
| May 31, 12:36 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 39 min |
| May 31, 12:50 PM CDT | Flash Flood Warning | DMX | Benton, Linn | 3 hr |
| May 31, 2:51 PM CDT | Flash Flood Warning | DMX | Iowa, Johnson | 3 hr |
| May 31, 2:51 PM CDT | Flash Flood Warning | DMX | Poweshiek | 3 hr |
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 | 81 |
| Tornado Warning | 14 |
| Flooding | |
| Flash Flood Warning | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Wright County8
- Pottawattamie County6
- Linn County6
- Benton County5
- Hamilton County5
- Polk County4
- Black Hawk County4
- Scott County4
- Marshall County3
- Grundy County3
- Buchanan County3
- Muscatine County3
- Johnson County3
- Webster County3
- Butler County3
- Iowa County3
- Hardin County3
- Jones County3
- Union County2
- Woodbury County2
- Marion County2
- Clayton County2
- Lucas County2
- Jasper County2
- Wayne County2
- Appanoose County2
- Delaware County2
- Dubuque County2
- Franklin County2
- Bremer County2
- Harrison County2
- Ringgold County1
- Kossuth County1
- Shelby County1
- Mahaska County1
- Monroe County1
- Winneshiek County1
- Story County1
- Boone County1
- Fayette County1
21 more counties
- Cedar County1
- Cerro Gordo County1
- Hancock County1
- Warren County1
- Dallas County1
- Greene County1
- Davis County1
- Floyd County1
- Van Buren County1
- Humboldt County1
- Lee County1
- Page County1
- Taylor County1
- Clarke County1
- Mitchell County1
- Carroll County1
- Monona County1
- Crawford County1
- Plymouth County1
- Cherokee County1
- Poweshiek County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19901992
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.