Alert archive / Iowa / 2025
Weather alerts in Iowa, August 2025
206 weather alerts in August 2025, 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 August 2025. Tap one for its archive.
- Alerts
- 206
- Warnings
- 98
- Watches
- 20
- Advisories
- 28
- Busiest day
- August 9, 202543 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 |
|---|---|---|---|---|
| Aug 1, 9:15 PM CDT | River Flood Warning | DVN | Cedar, Jones, Linn | 33 hr |
| Aug 2, 8:00 PM CDT | River Flood Warning | DVN | Keokuk | 13 hr |
| Aug 3, 9:45 AM CDT | River Flood Warning | DVN | Keokuk | 10 hr |
| Aug 3, 7:10 PM CDT | River Flood Warning | DVN | Linn | 14 hr |
| Aug 5, 11:33 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 117 min |
| Aug 6, 3:34 AM CDT | Special Weather Statement | DMX | Calhoun, Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas and 1 more | 86 min |
| Aug 6, 4:57 AM CDT | Special Weather Statement | DMX | Audubon, Calhoun, Carroll, Crawford, Greene, Pocahontas and 1 more | 93 min |
| Aug 6, 6:09 AM CDT | Special Weather Statement | OAX | Pottawattamie, Shelby | 36 min |
| Aug 6, 6:46 AM CDT | Special Weather Statement | OAX | Pottawattamie, Shelby | 29 min |
| Aug 6, 7:17 AM CDT | Special Weather Statement | OAX | Mills, Pottawattamie | 28 min |
| Aug 6, 7:30 AM CDT | Areal Flood Advisory | OAX | Mills, Pottawattamie | 2 hr |
| Aug 6, 8:02 AM CDT | Special Weather Statement | OAX | Fremont, Mills, Montgomery, Page | 28 min |
| Aug 6, 11:20 AM CDT | Special Weather Statement | ARX | Chickasaw, Floyd | 40 min |
| Aug 6, 6:47 PM CDT | Special Weather Statement | DVN | Johnson | 43 min |
| Aug 7, 2:48 AM CDT | Heat Advisory | FSD | Plymouth, Woodbury | 17 hr |
| Aug 7, 3:23 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek | 37 min |
| Aug 7, 6:29 AM CDT | Flash Flood Warning | DMX | Appanoose, Lucas, Wayne | 6 hr |
| Aug 7, 8:44 AM CDT | Flash Flood Warning | DMX | Clarke, Decatur, Lucas, Wayne | 4 hr |
| Aug 7, 8:52 AM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 38 min |
| Aug 7, 9:32 AM CDT | River Flood Watch | DMX | Appanoose | 6 hr |
| Aug 7, 1:31 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 29 hr |
| Aug 7, 2:15 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Aug 7, 2:19 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 30 hr |
| Aug 7, 2:42 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 37 more | 28 hr |
| Aug 8, 2:07 PM CDT | Flood Watch | ARX | Clayton, Fayette | 53 hr |
| Aug 8, 2:15 PM CDT | Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 53 hr |
| Aug 8, 3:18 PM CDT | Flood Watch | DMX | Adair, Adams, Appanoose, Black Hawk, Boone, Bremer and 23 more | 45 hr |
| Aug 8, 9:34 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 3 more | 8 hr |
| Aug 8, 11:25 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Lyon, Osceola | 2 hr |
| Aug 9, 2:16 AM CDT | Flood Watch | OAX | Fremont, Mills, Montgomery, Page | 34 hr |
| Aug 9, 2:17 AM CDT | Severe Thunderstorm Watch | SPC | Harrison, Mills, Monona, Pottawattamie, Shelby | 5 hr |
| Aug 9, 2:40 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet and 10 more | 95 min |
| Aug 9, 3:21 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 39 min |
| Aug 9, 3:41 AM CDT | Flash Flood Warning | FSD | Cherokee | 3 hr |
| Aug 9, 3:59 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 26 min |
| Aug 9, 4:10 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida | 50 min |
| Aug 9, 5:29 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Mills, Pottawattamie | 46 min |
| Aug 9, 5:31 AM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 21 more | 89 min |
| Aug 9, 5:44 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 16 min |
| Aug 9, 5:57 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery | 33 min |
| Aug 9, 6:04 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 41 min |
| Aug 9, 6:04 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 23 more | 5 hr |
| Aug 9, 6:10 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Crawford, Sac | 50 min |
| Aug 9, 6:14 AM CDT | Areal Flood Advisory | OAX | Harrison | 5 hr |
| Aug 9, 6:17 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 43 min |
| Aug 9, 6:20 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 40 min |
| Aug 9, 6:27 AM CDT | Flash Flood Warning | OAX | Harrison | 4 hr |
| Aug 9, 6:40 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Pottawattamie, Shelby | 50 min |
| Aug 9, 6:41 AM CDT | Areal Flood Advisory | OAX | Harrison, Monona | 3 hr |
| Aug 9, 6:44 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 46 min |
| Aug 9, 6:47 AM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 58 min |
| Aug 9, 6:59 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 46 min |
| Aug 9, 6:59 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 46 min |
| Aug 9, 7:05 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford, Greene | 40 min |
| Aug 9, 7:06 AM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 54 min |
| Aug 9, 7:10 AM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 50 min |
| Aug 9, 7:29 AM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Bremer, Butler, Calhoun and 30 more | 2 hr |
| Aug 9, 7:32 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Webster | 43 min |
| Aug 9, 7:37 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Boone, Carroll, Greene, Guthrie | 38 min |
| Aug 9, 7:47 AM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 25 min |
| Aug 9, 7:58 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Webster | 47 min |
| Aug 9, 8:10 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster, Wright | 50 min |
| Aug 9, 9:44 AM CDT | Special Weather Statement | DMX | Cerro Gordo, Worth | 31 min |
| Aug 9, 9:50 AM CDT | Special Weather Statement | ARX | Mitchell | 40 min |
| Aug 9, 10:03 AM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 87 min |
| Aug 9, 10:36 AM CDT | River Flood Watch | DVN | Lee | 21 hr |
| Aug 9, 10:49 AM CDT | River Flood Watch | DMX | Davis, Wapello | 23 hr |
| Aug 9, 11:28 AM CDT | Special Weather Statement | ARX | Allamakee | 47 min |
| Aug 9, 2:54 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Davis, Des Moines, Henry, Jefferson and 5 more | 96 min |
| Aug 9, 4:25 PM CDT | Special Weather Statement | DVN | Lee | 50 min |
| Aug 9, 8:46 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie | 8 hr |
| Aug 10, 1:44 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Boone, Cass, Clarke and 23 more | 2 hr |
| Aug 10, 2:03 AM CDT | Areal Flood Advisory | OAX | Mills | 113 min |
| Aug 10, 2:16 AM CDT | Areal Flood Advisory | OAX | Mills | 100 min |
| Aug 10, 2:41 AM CDT | Severe Thunderstorm Warning | OAX | Mills | 39 min |
| Aug 10, 2:51 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Butler and 29 more | 4 hr |
| Aug 10, 3:10 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 65 min |
| Aug 10, 3:37 AM CDT | Areal Flood Advisory | OAX | Mills, Pottawattamie | 19 min |
| Aug 10, 3:38 AM CDT | Special Weather Statement | DVN | Muscatine | 37 min |
| Aug 10, 3:42 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 33 min |
| Aug 10, 3:48 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Taylor | 42 min |
| Aug 10, 3:55 AM CDT | Areal Flood Warning | OAX | Fremont, Mills, Montgomery, Pottawattamie | 9 hr |
| Aug 10, 3:58 AM CDT | Flash Flood Warning | OAX | Fremont, Mills, Pottawattamie | 106 min |
| Aug 10, 4:17 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Audubon, Cass, Dallas, Guthrie and 1 more | 43 min |
| Aug 10, 4:18 AM CDT | Flash Flood Warning | DVN | Louisa, Muscatine, Scott | 5 hr |
| Aug 10, 4:25 AM CDT | Special Weather Statement | DVN | Cedar | 50 min |
| Aug 10, 4:57 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie, Madison, Polk | 36 min |
| Aug 10, 4:59 AM CDT | Mesoscale Discussion | SPC | Adair, Black Hawk, Boone, Butler, Cass, Dallas and 12 more | 91 min |
| Aug 10, 5:13 AM CDT | Flash Flood Warning | DVN | Cedar, Muscatine, Scott | 5 hr |
| Aug 10, 5:38 AM CDT | Special Weather Statement | DVN | Scott | 37 min |
| Aug 10, 7:01 AM CDT | Flash Flood Warning | DVN | Delaware, Dubuque, Jackson, Jones | 5 hr |
| Aug 10, 7:16 AM CDT | Flash Flood Warning | DVN | Johnson, Jones, Linn | 3 hr |
| Aug 10, 7:53 AM CDT | Special Weather Statement | ARX | Chickasaw, Howard | 52 min |
| Aug 10, 3:19 PM CDT | Special Weather Statement | DVN | Buchanan | 41 min |
| Aug 10, 4:26 PM CDT | Special Weather Statement | DVN | Delaware | 49 min |
| Aug 10, 5:10 PM CDT | Flash Flood Warning | ARX | Clayton | 3 hr |
| Aug 10, 5:47 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 31 min |
| Aug 10, 5:55 PM CDT | Tornado Warning | DVN | Dubuque | 23 min |
| Aug 10, 7:00 PM CDT | Special Weather Statement | DVN | Muscatine | 45 min |
| Aug 10, 7:35 PM CDT | Tornado Warning | DVN | Lee | 29 min |
| Aug 10, 8:02 PM CDT | River Flood Warning | DVN | Clinton, Scott | 4 days |
| Aug 11, 9:18 PM CDT | Tornado Warning | DMX | Appanoose, Davis | 27 min |
| Aug 11, 9:39 PM CDT | Tornado Warning | DMX | Davis | 51 min |
| Aug 11, 9:41 PM CDT | Tornado Warning | DMX | Davis | 23 min |
| Aug 11, 9:50 PM CDT | Tornado Warning | DVN | Van Buren | 40 min |
| Aug 11, 9:57 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Johnson and 9 more | 2 hr |
| Aug 11, 10:22 PM CDT | Tornado Warning | DVN | Van Buren | 38 min |
| Aug 11, 10:56 PM CDT | Tornado Warning | DVN | Van Buren | 30 min |
| Aug 11, 11:14 PM CDT | Tornado Warning | DVN | Henry | 46 min |
| Aug 11, 11:33 PM CDT | Special Weather Statement | DVN | Van Buren | 42 min |
| Aug 12, 12:01 AM CDT | Special Weather Statement | DVN | Henry | 44 min |
| Aug 12, 12:13 AM CDT | Special Weather Statement | DVN | Jefferson, Van Buren | 47 min |
| Aug 12, 12:24 AM CDT | Special Weather Statement | DVN | Lee | 51 min |
| Aug 12, 12:43 AM CDT | Special Weather Statement | DVN | Jefferson, Keokuk | 47 min |
| Aug 12, 12:58 AM CDT | Special Weather Statement | DVN | Des Moines, Henry, Lee, Louisa, Washington | 47 min |
| Aug 12, 1:47 AM CDT | Special Weather Statement | DVN | Iowa | 43 min |
| Aug 12, 2:27 AM CDT | Special Weather Statement | DVN | Clinton, Jackson, Scott | 48 min |
| Aug 12, 2:45 AM CDT | Special Weather Statement | DVN | Dubuque, Jones | 45 min |
| Aug 12, 3:37 AM CDT | Special Weather Statement | DVN | Dubuque | 38 min |
| Aug 14, 3:20 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie | 41 hr |
| Aug 14, 3:20 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 65 hr |
| Aug 14, 2:31 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Cass, Clarke, Davis and 7 more | 28 hr |
| Aug 15, 11:31 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 59 min |
| Aug 15, 11:40 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 32 hr |
| Aug 15, 11:51 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buena Vista, Butler and 32 more | 114 min |
| Aug 15, 12:00 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida | 45 min |
| Aug 15, 12:21 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 39 min |
| Aug 15, 12:30 PM CDT | Severe Thunderstorm Watch | SPC | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 20 more | 6 hr |
| Aug 15, 12:50 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Hamilton, Hancock, Humboldt, Kossuth, Palo Alto and 5 more | 40 min |
| Aug 15, 12:57 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Woodbury | 48 min |
| Aug 15, 1:41 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 31 more | 94 min |
| Aug 15, 1:59 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Aug 15, 2:00 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Wright | 45 min |
| Aug 15, 2:16 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Buchanan, Cedar, Chickasaw, Clayton and 18 more | 6 hr |
| Aug 15, 2:27 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 33 min |
| Aug 15, 2:29 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 46 min |
| Aug 15, 2:32 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 28 min |
| Aug 15, 2:51 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 29 hr |
| Aug 15, 2:59 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler | 61 min |
| Aug 15, 3:04 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 56 min |
| Aug 15, 3:32 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 20 more | 88 min |
| Aug 15, 3:36 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin, Marshall and 2 more | 39 min |
| Aug 15, 3:42 PM CDT | Special Weather Statement | ARX | Fayette | 48 min |
| Aug 15, 4:11 PM CDT | Special Weather Statement | DVN | Buchanan | 49 min |
| Aug 15, 4:15 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Tama | 45 min |
| Aug 15, 4:45 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 60 min |
| Aug 15, 4:54 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Marshall, Poweshiek, Tama | 51 min |
| Aug 15, 5:22 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Iowa, Johnson, Linn | 53 min |
| Aug 15, 5:39 PM CDT | Flash Flood Warning | DVN | Benton, Buchanan | 4 hr |
| Aug 15, 5:44 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Cedar, Delaware, Johnson, Jones, Linn | 61 min |
| Aug 15, 5:52 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 17 more | 83 min |
| Aug 15, 6:13 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Johnson, Jones, Linn and 2 more | 62 min |
| Aug 16, 12:31 AM CDT | Special Weather Statement | ARX | Howard, Winneshiek | 44 min |
| Aug 16, 1:03 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Fayette, Winneshiek | 42 min |
| Aug 16, 2:18 AM CDT | Mesoscale Discussion | SPC | Lyon | 87 min |
| Aug 16, 3:07 AM CDT | Heat Advisory | ARX | Chickasaw, Clayton, Fayette, Floyd, Mitchell | 17 hr |
| Aug 16, 3:24 AM CDT | Severe Thunderstorm Watch | SPC | Dickinson, Lyon, Osceola | 6 hr |
| Aug 16, 2:05 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 85 min |
| Aug 16, 7:30 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 60 min |
| Aug 16, 8:06 PM CDT | Mesoscale Discussion | SPC | Clayton, Dubuque | 84 min |
| Aug 16, 9:33 PM CDT | Flood Watch | DVN | Dubuque, Jackson | 12 hr |
| Aug 16, 10:58 PM CDT | Areal Flood Advisory | ARX | Allamakee | 3 hr |
| Aug 17, 2:09 AM CDT | Heat Advisory | DVN | Benton, Cedar, Des Moines, Henry, Iowa, Jefferson and 9 more | 18 hr |
| Aug 17, 2:37 AM CDT | Areal Flood Advisory | ARX | Howard, Winneshiek | 3 hr |
| Aug 17, 6:25 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 1 more | 14 hr |
| Aug 17, 3:51 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 15 more | 84 min |
| Aug 17, 4:45 PM CDT | Special Weather Statement | DVN | Benton | 45 min |
| Aug 17, 6:13 PM CDT | Tornado Warning | DMX | Hancock, Winnebago | 47 min |
| Aug 17, 6:42 PM CDT | Tornado Warning | DMX | Winnebago | 36 min |
| Aug 17, 6:43 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo, Chickasaw and 15 more | 2 hr |
| Aug 17, 6:54 PM CDT | Tornado Warning | DMX | Kossuth, Winnebago | 16 min |
| Aug 17, 7:46 PM CDT | Special Weather Statement | DVN | Delaware, Dubuque, Jones | 74 min |
| Aug 17, 8:58 PM CDT | Special Weather Statement | DVN | Cedar, Clinton | 62 min |
| Aug 17, 9:26 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jones, Scott | 64 min |
| Aug 17, 9:57 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 44 min |
| Aug 18, 1:50 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Harrison and 11 more | 85 min |
| Aug 18, 3:03 AM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 16 hr |
| Aug 18, 3:36 AM CDT | Flash Flood Warning | FSD | Lyon, Osceola, Sioux | 2 hr |
| Aug 18, 6:42 AM CDT | River Flood Warning | ARX | Allamakee | 48 hr |
| Aug 18, 7:20 AM CDT | Flash Flood Warning | ARX | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 4 hr |
| Aug 18, 9:37 AM CDT | River Flood Warning | ARX | Floyd | 59 hr |
| Aug 18, 11:02 AM CDT | Areal Flood Warning | ARX | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 31 hr |
| Aug 18, 11:17 AM CDT | River Flood Warning | ARX | Winneshiek | 43 hr |
| Aug 18, 11:20 AM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 57 hr |
| Aug 18, 1:04 PM CDT | River Flood Warning | ARX | Winneshiek | 5 hr |
| Aug 18, 2:37 PM CDT | River Flood Watch | ARX | Clayton | 62 hr |
| Aug 18, 3:51 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Des Moines, Henry and 15 more | 84 min |
| Aug 18, 4:17 PM CDT | Special Weather Statement | DVN | Muscatine, Scott | 43 min |
| Aug 18, 4:34 PM CDT | Special Weather Statement | DVN | Jackson | 41 min |
| Aug 18, 6:20 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 55 min |
| Aug 18, 8:19 PM CDT | River Flood Watch | ARX | Clayton | 34 hr |
| Aug 19, 1:32 AM CDT | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 7 hr |
| Aug 19, 1:32 AM CDT | Dense Fog Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 23 more | 7 hr |
| Aug 19, 4:14 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Delaware, Dubuque, Linn | 5 hr |
| Aug 19, 4:28 AM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 6 hr |
| Aug 19, 6:47 AM CDT | River Flood Warning | ARX | Clayton | 44 hr |
| Aug 19, 9:50 AM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 3 days |
| Aug 19, 9:50 AM CDT | River Flood Warning | DMX | Black Hawk | 4 days |
| Aug 21, 5:26 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Clarke, Dallas, Decatur, Guthrie and 7 more | 3 hr |
| Aug 22, 2:31 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Monona, Plymouth and 3 more | 119 min |
| Aug 22, 8:21 PM CDT | River Flood Watch | DVN | Louisa, Muscatine | 37 hr |
| Aug 24, 9:01 AM CDT | River Flood Watch | DVN | Clinton, Scott | 3 days |
| Aug 24, 9:39 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 58 hr |
| Aug 27, 7:57 PM CDT | River Flood Warning | DVN | Clinton, Scott | 42 hr |
| Aug 29, 6:16 PM CDT | Special Weather Statement | DVN | Scott | 44 min |
| Aug 30, 4:01 PM CDT | Flash Flood Warning | FSD | Lyon, O'Brien, Sioux | 119 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 | 55 |
| Tornado Warning | 12 |
| Severe Thunderstorm Watch | 8 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 38 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 14 |
| River Flood Warning | 15 |
| Flood Watch | 5 |
| River Flood Watch | 7 |
| Areal Flood Advisory | 8 |
| Heat | |
| Heat Advisory | 15 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mills County25
- Pottawattamie County24
- Scott County23
- Calhoun County18
- Dubuque County18
- Muscatine County18
- Cedar County17
- Linn County17
- Sac County17
- Greene County17
- Clinton County17
- Pocahontas County16
- Benton County16
- Boone County16
- Grundy County16
- Hamilton County16
- Hardin County16
- Jones County15
- Carroll County15
- Crawford County15
- Montgomery County15
- Chickasaw County15
- Johnson County15
- Buchanan County15
- Delaware County15
- Lee County15
- Harrison County15
- Marshall County15
- Story County15
- Wright County15
- Humboldt County14
- Fremont County14
- Floyd County14
- Louisa County14
- Black Hawk County14
- Webster County14
- Cerro Gordo County14
- Winnebago County14
- Butler County14
- Winneshiek County14
59 more counties
- Kossuth County13
- Shelby County13
- Van Buren County13
- Cherokee County13
- Adair County13
- Dallas County13
- Tama County13
- Clayton County13
- Hancock County13
- Franklin County13
- Keokuk County12
- Wayne County12
- Henry County12
- Jackson County12
- Ida County12
- Monona County12
- Cass County12
- Guthrie County12
- Bremer County12
- Allamakee County12
- Audubon County11
- Page County11
- Appanoose County11
- Des Moines County11
- Iowa County11
- Jefferson County11
- Davis County11
- Madison County11
- Fayette County11
- Worth County11
- Howard County11
- Mitchell County11
- Lyon County10
- Palo Alto County10
- Poweshiek County10
- Lucas County10
- Washington County10
- Buena Vista County10
- Polk County10
- Osceola County9
- Emmet County9
- Decatur County9
- Adams County9
- O'Brien County8
- Jasper County8
- Clarke County8
- Dickinson County8
- Monroe County8
- Taylor County8
- Warren County8
- Sioux County7
- Woodbury County7
- Clay County7
- Ringgold County7
- Union County7
- Plymouth County6
- Mahaska County6
- Wapello County6
- Marion County5
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.