Alert archive / Iowa / 2016
Weather alerts in Iowa, September 2016
319 weather alerts in September 2016, 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 2016. Tap one for its archive.
- Alerts
- 319
- Warnings
- 181
- Watches
- 42
- Advisories
- 5
- Busiest day
- September 22, 201671 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 2, 9:56 AM CDT | River Flood Warning | DVN | Clinton, Scott | 4 days |
| Sep 4, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | Lyon, Plymouth, Sioux | 4 hr |
| Sep 5, 1:10 AM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 2 hr |
| Sep 5, 1:27 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 48 min |
| Sep 5, 1:37 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 38 min |
| Sep 5, 9:22 AM CDT | Special Weather Statement | OAX | Harrison | 23 min |
| Sep 5, 11:30 AM CDT | Special Weather Statement | DMX | Winnebago | 45 min |
| Sep 5, 3:20 PM CDT | Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 52 hr |
| Sep 6, 7:08 AM CDT | Special Weather Statement | DMX | Emmet | 37 min |
| Sep 6, 2:22 PM CDT | Mesoscale Discussion | SPC | Howard, Mitchell | 2 hr |
| Sep 6, 3:25 PM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 39 hr |
| Sep 6, 3:28 PM CDT | Flash Flood Watch | DMX | Black Hawk, Boone, Bremer, Butler, Cerro Gordo, Emmet and 21 more | 31 hr |
| Sep 6, 3:47 PM CDT | Mesoscale Discussion | SPC | Audubon, Bremer, Buena Vista, Butler, Calhoun, Carroll and 26 more | 2 hr |
| Sep 6, 5:18 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 4 hr |
| Sep 6, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 30 more | 7 hr |
| Sep 6, 8:16 PM CDT | Mesoscale Discussion | SPC | Allamakee, Winneshiek | 89 min |
| Sep 6, 10:45 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee, Crawford and 15 more | 60 min |
| Sep 7, 1:45 AM CDT | Flash Flood Warning | FSD | Plymouth, Sioux | 4 hr |
| Sep 7, 2:12 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 5 hr |
| Sep 7, 2:25 AM CDT | Special Weather Statement | DMX | Humboldt | 50 min |
| Sep 7, 5:11 AM CDT | Special Weather Statement | DMX | Audubon, Calhoun, Carroll, Greene, Humboldt, Webster | 34 min |
| Sep 7, 5:34 AM CDT | Special Weather Statement | DMX | Audubon, Boone, Dallas, Guthrie | 41 min |
| Sep 7, 5:43 AM CDT | Special Weather Statement | DMX | Webster, Wright | 62 min |
| Sep 7, 6:32 AM CDT | River Flood Warning | ARX | Winneshiek | 34 hr |
| Sep 7, 7:14 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 3 hr |
| Sep 7, 8:05 AM CDT | River Flood Warning | ARX | Allamakee | 3 days |
| Sep 7, 10:14 AM CDT | Areal Flood Warning | ARX | Allamakee, Winneshiek | 6 hr |
| Sep 7, 1:00 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 9 more | 3 hr |
| Sep 7, 1:37 PM CDT | Special Weather Statement | DVN | Keokuk | 38 min |
| Sep 7, 2:19 PM CDT | Special Weather Statement | DVN | Cedar, Johnson | 26 min |
| Sep 7, 2:47 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Decatur, Fremont, Mills and 6 more | 2 hr |
| Sep 7, 2:50 PM CDT | Special Weather Statement | DVN | Cedar, Des Moines, Muscatine, Scott | 40 min |
| Sep 7, 7:15 PM CDT | Special Weather Statement | DVN | Des Moines, Lee | 60 min |
| Sep 7, 7:56 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 28 min |
| Sep 7, 8:01 PM CDT | Tornado Warning | DVN | Des Moines | 29 min |
| Sep 7, 8:36 PM CDT | Flash Flood Warning | DVN | Des Moines | 6 hr |
| Sep 7, 10:24 PM CDT | Special Weather Statement | DMX | Boone | 66 min |
| Sep 8, 12:41 AM CDT | Special Weather Statement | DVN | Benton, Cedar, Iowa, Johnson, Jones, Linn | 64 min |
| Sep 8, 1:25 AM CDT | Special Weather Statement | DVN | Clinton, Scott | 50 min |
| Sep 8, 1:34 AM CDT | Flash Flood Warning | DVN | Linn | 4 hr |
| Sep 8, 1:53 AM CDT | Special Weather Statement | DVN | Cedar, Johnson | 22 min |
| Sep 8, 2:20 AM CDT | Special Weather Statement | DVN | Cedar, Clinton, Johnson, Scott | 55 min |
| Sep 8, 6:33 AM CDT | River Flood Warning | DVN | Clinton, Scott | 68 hr |
| Sep 9, 9:16 AM CDT | Special Weather Statement | DMX | Emmet, Kossuth, Palo Alto, Pocahontas, Sac | 44 min |
| Sep 9, 9:28 AM CDT | Special Weather Statement | DMX | Palo Alto | 32 min |
| Sep 9, 10:22 AM CDT | Special Weather Statement | DMX | Calhoun, Cerro Gordo, Hancock, Humboldt, Webster, Wright | 38 min |
| Sep 9, 10:42 AM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Cass, Crawford, Fremont, Guthrie and 8 more | 93 min |
| Sep 9, 11:01 AM CDT | Special Weather Statement | DMX | Boone, Cerro Gordo, Franklin, Greene, Hamilton, Hardin and 3 more | 59 min |
| Sep 9, 11:08 AM CDT | Areal Flood Advisory | ARX | Allamakee, Chickasaw, Fayette, Floyd, Howard, Mitchell and 1 more | 3 hr |
| Sep 9, 11:31 AM CDT | Flash Flood Warning | DMX | Bremer, Butler, Franklin | 6 hr |
| Sep 9, 11:40 AM CDT | Flash Flood Watch | DMX | Bremer, Butler, Cerro Gordo, Franklin, Hancock, Winnebago and 1 more | 6 hr |
| Sep 9, 11:41 AM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 7 hr |
| Sep 9, 11:55 AM CDT | Special Weather Statement | DMX | Bremer | 80 min |
| Sep 9, 12:28 PM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd, Howard, Winneshiek | 3 hr |
| Sep 9, 12:35 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 25 min |
| Sep 9, 12:57 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 33 min |
| Sep 9, 1:02 PM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 3 hr |
| Sep 9, 1:17 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 43 min |
| Sep 9, 1:29 PM CDT | Special Weather Statement | DMX | Carroll | 46 min |
| Sep 9, 1:59 PM CDT | Special Weather Statement | DMX | Carroll, Greene, Hamilton, Webster | 46 min |
| Sep 9, 2:28 PM CDT | Special Weather Statement | DMX | Boone, Greene, Story | 47 min |
| Sep 9, 2:33 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Story, Webster | 42 min |
| Sep 9, 2:35 PM CDT | River Flood Warning | ARX | Allamakee | 67 hr |
| Sep 9, 2:39 PM CDT | River Flood Warning | ARX | Clayton | 4 days |
| Sep 9, 2:39 PM CDT | River Flood Warning | ARX | Clayton | 64 hr |
| Sep 9, 2:59 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 31 min |
| Sep 9, 3:12 PM CDT | Special Weather Statement | DMX | Dallas, Madison, Polk | 48 min |
| Sep 9, 3:16 PM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd, Howard, Winneshiek | 3 hr |
| Sep 9, 4:01 PM CDT | Special Weather Statement | DMX | Jasper, Madison, Polk, Warren | 44 min |
| Sep 9, 6:17 PM CDT | Areal Flood Warning | ARX | Chickasaw, Fayette, Howard, Winneshiek | 50 hr |
| Sep 9, 6:38 PM CDT | Special Weather Statement | OAX | Fremont | 37 min |
| Sep 10, 9:23 AM CDT | River Flood Warning | DMX | Black Hawk | 4 days |
| Sep 12, 5:31 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 4 more | 119 min |
| Sep 12, 8:47 PM CDT | Special Weather Statement | OAX | Shelby | 28 min |
| Sep 12, 10:15 PM CDT | Special Weather Statement | DMX | Hancock, Webster, Worth, Wright | 60 min |
| Sep 12, 10:32 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 19 min |
| Sep 12, 11:29 PM CDT | Special Weather Statement | ARX | Floyd, Mitchell | 61 min |
| Sep 12, 11:55 PM CDT | Special Weather Statement | ARX | Chickasaw, Howard | 50 min |
| Sep 13, 12:40 AM CDT | Special Weather Statement | ARX | Allamakee, Fayette, Winneshiek | 50 min |
| Sep 15, 11:34 AM CDT | Flash Flood Warning | FSD | Lyon | 3 hr |
| Sep 15, 1:40 PM CDT | Flash Flood Warning | FSD | Lyon, Osceola, Sioux | 3 hr |
| Sep 15, 1:58 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 7 more | 3 hr |
| Sep 15, 2:11 PM CDT | Flash Flood Warning | FSD | Lyon | 3 hr |
| Sep 15, 3:35 PM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 32 more | 13 hr |
| Sep 15, 3:45 PM CDT | Flash Flood Watch | OAX | Harrison, Monona, Shelby | 12 hr |
| Sep 15, 3:51 PM CDT | Mesoscale Discussion | SPC | Audubon, Carroll, Crawford, Harrison, Ida, Monona and 4 more | 114 min |
| Sep 15, 4:07 PM CDT | Flash Flood Warning | FSD | Clay, Dickinson, O'Brien, Osceola, Sioux | 3 hr |
| Sep 15, 4:10 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 35 min |
| Sep 15, 4:37 PM CDT | Flash Flood Warning | FSD | Lyon, Osceola, Sioux | 3 hr |
| Sep 15, 4:38 PM CDT | Severe Thunderstorm Watch | SPC | Crawford, Harrison, Ida, Monona, Pottawattamie, Sac and 2 more | 5 hr |
| Sep 15, 4:42 PM CDT | Tornado Warning | OAX | Harrison, Pottawattamie | 33 min |
| Sep 15, 4:49 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 41 min |
| Sep 15, 5:01 PM CDT | Special Weather Statement | DMX | Pocahontas | 14 min |
| Sep 15, 5:02 PM CDT | Special Weather Statement | DMX | Pocahontas | 13 min |
| Sep 15, 5:09 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 38 min |
| Sep 15, 5:17 PM CDT | Special Weather Statement | DMX | Pocahontas | 28 min |
| Sep 15, 5:24 PM CDT | Special Weather Statement | DMX | Sac | 21 min |
| Sep 15, 5:28 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 17 min |
| Sep 15, 5:40 PM CDT | Special Weather Statement | DMX | Calhoun, Pocahontas, Sac | 35 min |
| Sep 15, 5:50 PM CDT | Special Weather Statement | OAX | Monona | 40 min |
| Sep 15, 5:53 PM CDT | Flash Flood Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 3 hr |
| Sep 15, 6:06 PM CDT | Areal Flood Advisory | OAX | Monona | 5 hr |
| Sep 15, 6:10 PM CDT | Flash Flood Warning | DMX | Calhoun, Humboldt, Pocahontas, Sac, Webster, Wright | 6 hr |
| Sep 15, 6:16 PM CDT | Special Weather Statement | DMX | Calhoun, Cerro Gordo, Franklin, Hamilton, Humboldt, Pocahontas and 4 more | 44 min |
| Sep 15, 6:25 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 35 min |
| Sep 15, 6:34 PM CDT | Flash Flood Warning | OAX | Monona | 4 hr |
| Sep 15, 6:44 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 46 min |
| Sep 15, 6:54 PM CDT | Flash Flood Warning | OAX | Harrison, Monona | 4 hr |
| Sep 15, 7:01 PM CDT | Special Weather Statement | DMX | Boone, Bremer, Butler, Franklin, Greene, Grundy and 5 more | 44 min |
| Sep 15, 7:16 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 44 min |
| Sep 15, 7:17 PM CDT | Mesoscale Discussion | SPC | Calhoun, Carroll, Crawford, Harrison, Ida, Monona and 2 more | 88 min |
| Sep 15, 7:41 PM CDT | Special Weather Statement | DMX | Crawford | 64 min |
| Sep 15, 7:47 PM CDT | Flash Flood Warning | OAX | Monona | 5 hr |
| Sep 15, 7:48 PM CDT | Special Weather Statement | DMX | Black Hawk, Bremer, Butler, Grundy, Hardin, Marshall and 2 more | 57 min |
| Sep 15, 8:00 PM CDT | Special Weather Statement | OAX | Harrison | 30 min |
| Sep 15, 8:11 PM CDT | River Flood Warning | FSD | Sioux | 5 days |
| Sep 15, 8:11 PM CDT | River Flood Warning | FSD | Plymouth | 5 days |
| Sep 15, 8:16 PM CDT | Special Weather Statement | DMX | Black Hawk, Bremer | 44 min |
| Sep 15, 8:44 PM CDT | Flash Flood Warning | OAX | Harrison, Monona, Shelby | 5 hr |
| Sep 15, 8:49 PM CDT | Special Weather Statement | OAX | Harrison, Shelby | 41 min |
| Sep 15, 9:05 PM CDT | River Flood Watch | DVN | Clinton, Scott | 8 days |
| Sep 15, 9:12 PM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 23 days |
| Sep 15, 9:23 PM CDT | River Flood Watch | DVN | Iowa, Johnson | 24 hr |
| Sep 15, 9:58 PM CDT | Flash Flood Warning | DMX | Calhoun, Carroll, Crawford, Greene, Sac | 6 hr |
| Sep 15, 10:09 PM CDT | Flash Flood Warning | OAX | Monona | 6 hr |
| Sep 15, 10:52 PM CDT | Flash Flood Warning | OAX | Harrison, Monona | 6 hr |
| Sep 15, 10:55 PM CDT | Special Weather Statement | DMX | Polk | 50 min |
| Sep 16, 12:20 AM CDT | Flash Flood Warning | OAX | Harrison | 4 hr |
| Sep 16, 12:51 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 24 min |
| Sep 16, 1:15 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 30 min |
| Sep 16, 1:25 AM CDT | Flash Flood Warning | OAX | Harrison, Pottawattamie | 3 hr |
| Sep 16, 1:40 AM CDT | Flash Flood Warning | OAX | Harrison, Monona, Pottawattamie, Shelby | 3 hr |
| Sep 16, 1:44 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 31 min |
| Sep 16, 2:12 AM CDT | Special Weather Statement | OAX | Montgomery, Page | 48 min |
| Sep 16, 5:01 AM CDT | River Flood Warning | ARX | Clayton | 3 days |
| Sep 16, 5:01 AM CDT | River Flood Warning | ARX | Clayton | 62 hr |
| Sep 16, 6:52 AM CDT | Areal Flood Advisory | OAX | Harrison, Monona | 6 hr |
| Sep 16, 8:45 AM CDT | River Flood Warning | OAX | Fremont | 34 hr |
| Sep 16, 8:45 AM CDT | River Flood Warning | OAX | Montgomery | 52 hr |
| Sep 16, 8:45 AM CDT | River Flood Warning | OAX | Fremont | 66 hr |
| Sep 16, 9:39 AM CDT | River Flood Warning | DVN | Clinton, Scott | 20 days |
| Sep 16, 9:48 AM CDT | River Flood Warning | OAX | Mills | 4 days |
| Sep 16, 9:48 AM CDT | River Flood Warning | OAX | Fremont | 4 days |
| Sep 16, 9:56 AM CDT | River Flood Warning | DMX | Black Hawk | 17 days |
| Sep 16, 3:16 PM CDT | River Flood Warning | DVN | Iowa | 23 days |
| Sep 19, 2:02 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Buchanan, Cedar, Clarke, Clinton and 26 more | 58 min |
| Sep 19, 2:24 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 21 min |
| Sep 19, 2:26 PM CDT | Special Weather Statement | ARX | Clayton | 64 min |
| Sep 19, 2:31 PM CDT | Severe Thunderstorm Watch | SPC | Clayton | 3 hr |
| Sep 19, 2:55 PM CDT | Tornado Watch | SPC | Appanoose, Benton, Buchanan, Cedar, Clinton, Davis and 24 more | 4 hr |
| Sep 19, 2:56 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 34 min |
| Sep 19, 4:19 PM CDT | Special Weather Statement | DMX | Mahaska, Marion, Monroe | 56 min |
| Sep 19, 4:35 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 40 min |
| Sep 19, 5:06 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Monroe | 39 min |
| Sep 19, 5:07 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Buchanan, Cedar and 37 more | 113 min |
| Sep 19, 5:42 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 48 min |
| Sep 19, 5:47 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Wayne | 118 min |
| Sep 19, 6:20 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 40 min |
| Sep 20, 1:42 AM CDT | Dense Fog Advisory | ARX | Allamakee, Clayton, Fayette, Winneshiek | 8 hr |
| Sep 20, 5:16 AM CDT | Dense Fog Advisory | DVN | Delaware, Dubuque, Jackson, Jones | 4 hr |
| Sep 20, 10:21 AM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 67 hr |
| Sep 20, 2:32 PM CDT | Flash Flood Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 44 hr |
| Sep 20, 3:32 PM CDT | Flash Flood Watch | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 21 more | 69 hr |
| Sep 20, 8:01 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek, Worth | 119 min |
| Sep 20, 9:34 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Cerro Gordo, Chickasaw, Clayton, Fayette, Floyd and 6 more | 5 hr |
| Sep 20, 11:26 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Howard, Winneshiek | 2 hr |
| Sep 21, 1:33 AM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Winneshiek | 117 min |
| Sep 21, 6:44 AM CDT | Flash Flood Warning | ARX | Allamakee | 6 hr |
| Sep 21, 9:31 AM CDT | Special Weather Statement | DVN | Jackson | 44 min |
| Sep 21, 9:38 AM CDT | Special Weather Statement | DVN | Dubuque | 22 min |
| Sep 21, 10:10 AM CDT | Special Weather Statement | DVN | Jackson | 50 min |
| Sep 21, 10:35 AM CDT | Special Weather Statement | DVN | Clinton | 25 min |
| Sep 21, 2:00 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 56 more | 2 hr |
| Sep 21, 3:26 PM CDT | Special Weather Statement | DMX | Cerro Gordo | 49 min |
| Sep 21, 3:32 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 43 min |
| Sep 21, 4:09 PM CDT | Special Weather Statement | ARX | Floyd | 51 min |
| Sep 21, 4:21 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 39 min |
| Sep 21, 4:23 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 37 min |
| Sep 21, 4:47 PM CDT | Flash Flood Warning | ARX | Floyd | 4 hr |
| Sep 21, 4:50 PM CDT | Flash Flood Warning | DMX | Cerro Gordo | 6 hr |
| Sep 21, 4:57 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 31 min |
| Sep 21, 5:03 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 57 min |
| Sep 21, 5:13 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 47 min |
| Sep 21, 5:19 PM CDT | Tornado Warning | DMX | Butler | 56 min |
| Sep 21, 5:20 PM CDT | Tornado Warning | ARX | Floyd | 40 min |
| Sep 21, 5:45 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Worth | 45 min |
| Sep 21, 5:52 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 35 min |
| Sep 21, 6:01 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 44 min |
| Sep 21, 6:01 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 10 more | 2 hr |
| Sep 21, 6:03 PM CDT | Flash Flood Warning | ARX | Floyd | 3 hr |
| Sep 21, 6:17 PM CDT | Tornado Warning | DMX | Butler | 43 min |
| Sep 21, 6:18 PM CDT | Tornado Warning | ARX | Floyd | 42 min |
| Sep 21, 6:23 PM CDT | Flash Flood Warning | ARX | Mitchell | 6 hr |
| Sep 21, 6:33 PM CDT | Flash Flood Warning | DMX | Cerro Gordo, Worth | 6 hr |
| Sep 21, 6:44 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 46 min |
| Sep 21, 6:53 PM CDT | Tornado Warning | ARX | Chickasaw, Floyd | 32 min |
| Sep 21, 6:58 PM CDT | Flash Flood Warning | DMX | Butler | 12 hr |
| Sep 21, 6:59 PM CDT | Tornado Warning | DMX | Bremer, Butler | 46 min |
| Sep 21, 7:05 PM CDT | Flash Flood Warning | ARX | Chickasaw | 5 hr |
| Sep 21, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 55 min |
| Sep 21, 7:11 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 49 min |
| Sep 21, 7:16 PM CDT | Tornado Warning | DMX | Cerro Gordo | 13 min |
| Sep 21, 7:34 PM CDT | Tornado Warning | ARX | Floyd | 41 min |
| Sep 21, 7:43 PM CDT | Tornado Warning | DMX | Bremer, Butler | 47 min |
| Sep 21, 8:11 PM CDT | Flash Flood Warning | ARX | Floyd | 8 hr |
| Sep 21, 8:26 PM CDT | Special Weather Statement | DMX | Bremer | 64 min |
| Sep 21, 8:44 PM CDT | Special Weather Statement | ARX | Allamakee, Winneshiek | 46 min |
| Sep 21, 8:54 PM CDT | Flash Flood Warning | DMX | Bremer | 6 hr |
| Sep 21, 9:05 PM CDT | Special Weather Statement | DMX | Bremer | 40 min |
| Sep 21, 9:19 PM CDT | Special Weather Statement | ARX | Clayton, Fayette | 56 min |
| Sep 21, 9:39 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 5 days |
| Sep 21, 9:40 PM CDT | River Flood Warning | DMX | Black Hawk | 8 days |
| Sep 21, 9:41 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 6 days |
| Sep 21, 9:44 PM CDT | River Flood Watch | DVN | Benton, Linn | 8 days |
| Sep 21, 9:44 PM CDT | River Flood Watch | DVN | Cedar, Johnson, Linn | 24 hr |
| Sep 21, 9:44 PM CDT | River Flood Watch | DVN | Louisa | 24 hr |
| Sep 21, 9:44 PM CDT | River Flood Watch | DVN | Louisa | 24 hr |
| Sep 21, 9:44 PM CDT | River Flood Watch | DVN | Louisa | 24 hr |
| Sep 21, 9:44 PM CDT | River Flood Watch | DVN | Buchanan, Linn | 8 days |
| Sep 21, 9:44 PM CDT | River Flood Watch | DVN | Cedar, Jones, Linn | 38 hr |
| Sep 21, 9:50 PM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 4 days |
| Sep 21, 10:13 PM CDT | Special Weather Statement | ARX | Clayton, Fayette | 62 min |
| Sep 21, 10:51 PM CDT | Areal Flood Warning | DMX | Cerro Gordo, Franklin, Worth | 48 hr |
| Sep 22, 12:04 AM CDT | Flash Flood Warning | ARX | Chickasaw | 4 hr |
| Sep 22, 12:13 AM CDT | Special Weather Statement | ARX | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 2 hr |
| Sep 22, 12:48 AM CDT | Flash Flood Warning | ARX | Allamakee | 6 hr |
| Sep 22, 1:00 AM CDT | Flash Flood Warning | ARX | Howard, Mitchell, Winneshiek | 6 hr |
| Sep 22, 2:20 AM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd | 6 hr |
| Sep 22, 3:05 AM CDT | Areal Flood Warning | DMX | Bremer | 24 hr |
| Sep 22, 3:55 AM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 4 hr |
| Sep 22, 4:09 AM CDT | Flash Flood Warning | ARX | Clayton | 6 hr |
| Sep 22, 4:13 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Hancock | 6 hr |
| Sep 22, 4:53 AM CDT | River Flood Warning | ARX | Mitchell | 3 days |
| Sep 22, 4:53 AM CDT | River Flood Warning | ARX | Floyd | 4 days |
| Sep 22, 5:39 AM CDT | River Flood Warning | ARX | Allamakee | 70 hr |
| Sep 22, 6:51 AM CDT | Flash Flood Warning | ARX | Allamakee | 3 hr |
| Sep 22, 7:00 AM CDT | Areal Flood Warning | ARX | Howard, Mitchell, Winneshiek | 6 hr |
| Sep 22, 7:00 AM CDT | Flash Flood Warning | DMX | Butler | 4 hr |
| Sep 22, 8:02 AM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd | 5 hr |
| Sep 22, 9:00 AM CDT | River Flood Warning | ARX | Clayton | 5 days |
| Sep 22, 9:00 AM CDT | River Flood Warning | ARX | Clayton | 4 days |
| Sep 22, 9:38 AM CDT | Flash Flood Warning | ARX | Allamakee | 3 hr |
| Sep 22, 10:19 AM CDT | Flash Flood Warning | ARX | Clayton | 3 hr |
| Sep 22, 10:22 AM CDT | River Flood Warning | DMX | Wright | 6 days |
| Sep 22, 10:26 AM CDT | River Flood Warning | DVN | Benton, Linn | 8 days |
| Sep 22, 10:26 AM CDT | River Flood Warning | DVN | Cedar, Johnson, Linn | 10 days |
| Sep 22, 10:50 AM CDT | River Flood Warning | DVN | Louisa | 14 days |
| Sep 22, 10:50 AM CDT | River Flood Warning | DVN | Louisa | 16 days |
| Sep 22, 10:50 AM CDT | River Flood Warning | DVN | Louisa | 16 days |
| Sep 22, 11:20 AM CDT | River Flood Warning | ARX | Allamakee, Clayton | 10 days |
| Sep 22, 11:20 AM CDT | River Flood Warning | ARX | Clayton | 9 days |
| Sep 22, 11:23 AM CDT | Areal Flood Warning | DMX | Bremer, Butler | 24 hr |
| Sep 22, 11:47 AM CDT | River Flood Warning | DVN | Dubuque | 8 days |
| Sep 22, 11:47 AM CDT | River Flood Warning | DVN | Dubuque, Jackson | 11 days |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Jackson | 5 days |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Clinton | 71 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Clinton, Scott | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Scott | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Muscatine, Scott | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Muscatine | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Louisa, Muscatine | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Louisa | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Des Moines, Louisa | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Des Moines | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Des Moines, Lee | 24 hr |
| Sep 22, 12:04 PM CDT | River Flood Watch | DVN | Lee | 48 hr |
| Sep 22, 12:58 PM CDT | Areal Flood Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 21 hr |
| Sep 22, 4:14 PM CDT | Special Weather Statement | DVN | Benton | 31 min |
| Sep 22, 5:25 PM CDT | Special Weather Statement | DVN | Linn | 65 min |
| Sep 22, 8:59 PM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more | 13 hr |
| Sep 22, 9:16 PM CDT | Special Weather Statement | DMX | Polk | 29 min |
| Sep 22, 9:37 PM CDT | Flash Flood Warning | DMX | Story | 6 hr |
| Sep 22, 9:48 PM CDT | Flash Flood Warning | DVN | Buchanan, Delaware, Dubuque, Jackson | 6 hr |
| Sep 22, 11:24 PM CDT | Flash Flood Warning | DMX | Bremer, Butler, Cerro Gordo, Franklin | 6 hr |
| Sep 23, 12:00 AM CDT | Flash Flood Warning | ARX | Chickasaw, Clayton, Fayette, Floyd | 5 hr |
| Sep 23, 12:22 AM CDT | River Flood Warning | DMX | Story | 31 hr |
| Sep 23, 1:14 AM CDT | River Flood Warning | DMX | Polk, Story | 33 hr |
| Sep 23, 1:22 AM CDT | Flash Flood Warning | DMX | Hancock, Wright | 6 hr |
| Sep 23, 1:55 AM CDT | Special Weather Statement | DVN | Jones, Linn | 50 min |
| Sep 23, 2:42 AM CDT | River Flood Warning | DVN | Delaware, Jones | 57 hr |
| Sep 23, 3:36 AM CDT | Flash Flood Warning | DMX | Franklin, Humboldt, Kossuth, Wright | 6 hr |
| Sep 23, 3:38 AM CDT | Flash Flood Warning | DVN | Buchanan, Delaware | 6 hr |
| Sep 23, 4:24 AM CDT | Special Weather Statement | DVN | Iowa, Johnson | 51 min |
| Sep 23, 4:33 AM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Linn | 6 hr |
| Sep 23, 5:19 AM CDT | Areal Flood Warning | DMX | Butler, Franklin | 6 hr |
| Sep 23, 5:42 AM CDT | Flash Flood Warning | DMX | Palo Alto, Pocahontas | 4 hr |
| Sep 23, 7:15 AM CDT | Areal Flood Warning | DMX | Hancock, Wright | 4 hr |
| Sep 23, 9:46 AM CDT | River Flood Watch | DVN | Jackson | 4 days |
| Sep 23, 10:01 AM CDT | Areal Flood Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 12 hr |
| Sep 23, 10:26 AM CDT | River Flood Warning | DVN | Buchanan, Linn | 6 days |
| Sep 23, 10:26 AM CDT | River Flood Warning | DVN | Cedar, Jones, Linn | 8 days |
| Sep 23, 11:12 AM CDT | Areal Flood Warning | DMX | Black Hawk, Bremer, Butler, Franklin, Hancock, Wright | 48 hr |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Clinton, Scott | 12 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Scott | 11 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Muscatine, Scott | 13 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Muscatine | 14 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 15 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Louisa | 16 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 17 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Des Moines | 18 days |
| Sep 23, 11:56 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 18 days |
| Sep 23, 9:59 PM CDT | Areal Flood Warning | ARX | Chickasaw, Clayton, Fayette, Floyd | 12 hr |
| Sep 23, 11:01 PM CDT | River Flood Warning | DVN | Johnson, Washington | 3 days |
| Sep 24, 9:58 AM CDT | River Flood Warning | DMX | Black Hawk | 44 hr |
| Sep 24, 11:15 AM CDT | River Flood Warning | DVN | Lee | 13 days |
| Sep 24, 12:42 PM CDT | Special Weather Statement | OAX | Mills | 33 min |
| Sep 24, 1:03 PM CDT | Special Weather Statement | OAX | Pottawattamie | 27 min |
| Sep 24, 1:16 PM CDT | Special Weather Statement | OAX | Shelby | 29 min |
| Sep 24, 2:22 PM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 17 hr |
| Sep 24, 3:55 PM CDT | Flash Flood Watch | DMX | Bremer, Butler, Cerro Gordo, Franklin, Hancock, Winnebago and 2 more | 15 hr |
| Sep 24, 4:55 PM CDT | Special Weather Statement | DMX | Calhoun, Webster | 65 min |
| Sep 24, 5:11 PM CDT | River Flood Warning | DMX | Marshall | 4 days |
| Sep 24, 5:46 PM CDT | River Flood Warning | DMX | Tama | 8 days |
| Sep 24, 8:37 PM CDT | Special Weather Statement | DMX | Polk, Warren | 38 min |
| Sep 24, 10:19 PM CDT | Flash Flood Warning | DMX | Clarke, Madison, Warren | 6 hr |
| Sep 25, 10:39 AM CDT | River Flood Warning | DVN | Jackson | 45 hr |
| Sep 25, 11:10 AM CDT | River Flood Warning | DVN | Clinton | 7 days |
| Sep 25, 4:33 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 3 days |
| Sep 25, 4:51 PM CDT | River Flood Warning | DMX | Hamilton, Webster | 32 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 | 37 |
| Tornado Warning | 11 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 71 |
| Flooding | |
| Areal Flood Warning | 12 |
| Flash Flood Warning | 58 |
| River Flood Warning | 63 |
| Flash Flood Watch | 12 |
| Flood Watch | 1 |
| River Flood Watch | 22 |
| Areal Flood Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Floyd County36
- Allamakee County33
- Clayton County29
- Winneshiek County29
- Harrison County28
- Cerro Gordo County27
- Bremer County26
- Butler County26
- Chickasaw County25
- Fayette County23
- Howard County23
- Monona County22
- Mitchell County21
- Scott County19
- Linn County19
- Louisa County19
- Webster County19
- Wright County19
- Franklin County18
- Clinton County17
- Worth County17
- Cedar County16
- Johnson County16
- Black Hawk County16
- Hancock County16
- Des Moines County15
- Jackson County15
- Pocahontas County15
- Muscatine County14
- Sac County14
- Jones County13
- Humboldt County13
- Story County13
- Calhoun County13
- Shelby County13
- Dubuque County12
- Hamilton County12
- Carroll County12
- Crawford County12
- Benton County11
59 more counties
- Boone County11
- Greene County11
- Fremont County11
- Pottawattamie County11
- Sioux County10
- Winnebago County10
- Buchanan County10
- Delaware County10
- Iowa County10
- Polk County10
- Lee County9
- Hardin County9
- Kossuth County9
- Marshall County9
- Palo Alto County9
- Mills County9
- Lyon County8
- Plymouth County8
- Mahaska County8
- Marion County8
- Tama County8
- Audubon County8
- Ida County8
- Montgomery County8
- Appanoose County8
- Wayne County8
- Monroe County8
- Osceola County7
- Emmet County7
- Washington County7
- Grundy County7
- Jasper County7
- Woodbury County7
- Madison County7
- Page County7
- O'Brien County6
- Henry County6
- Jefferson County6
- Keokuk County6
- Poweshiek County6
- Warren County6
- Davis County6
- Lucas County6
- Cherokee County5
- Van Buren County5
- Buena Vista County5
- Guthrie County5
- Clarke County5
- Clay County5
- Wapello County5
- Adams County4
- Cass County4
- Dallas County4
- Dickinson County4
- Adair County3
- Decatur County3
- Ringgold County3
- Taylor County2
- Union County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.