Alert archive / Iowa / 2024
Weather alerts in Iowa, August 2024
146 weather alerts in August 2024, 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 2024. Tap one for its archive.
- Alerts
- 146
- Warnings
- 46
- Watches
- 10
- Advisories
- 18
- Busiest day
- August 1, 202425 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 |
|---|---|---|---|---|
| Jul 31, 7:24 PM CDT | Severe Thunderstorm Watch | SPC | Dickinson, Lyon, Osceola | 5 hr |
| Jul 31, 7:27 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 48 min |
| Jul 31, 7:30 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Dallas, Greene, Guthrie and 1 more | 45 min |
| Jul 31, 7:54 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Boone, Dallas, Guthrie, Madison, Polk and 2 more | 51 min |
| Jul 31, 7:59 PM CDT | Special Weather Statement | DMX | Boone, Calhoun, Carroll, Greene, Guthrie | 31 min |
| Jul 31, 8:12 PM CDT | Special Weather Statement | DMX | Clarke, Decatur, Lucas, Ringgold, Wayne | 33 min |
| Jul 31, 8:21 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Clarke, Decatur, Lucas, Madison, Mahaska and 5 more | 39 min |
| Jul 31, 8:27 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Hardin, Jasper, Madison, Marion and 4 more | 48 min |
| Jul 31, 8:42 PM CDT | Mesoscale Discussion | SPC | Appanoose, Boone, Davis, Iowa, Jasper, Keokuk and 12 more | 93 min |
| Jul 31, 8:43 PM CDT | Special Weather Statement | DMX | Audubon, Calhoun, Carroll, Greene, Guthrie, Webster | 62 min |
| Jul 31, 8:55 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Cherokee and 24 more | 2 hr |
| Jul 31, 9:12 PM CDT | Special Weather Statement | DMX | Appanoose, Davis, Lucas, Mahaska, Marion, Monroe and 2 more | 33 min |
| Jul 31, 9:38 PM CDT | Special Weather Statement | DMX | Grundy, Jasper, Marshall, Poweshiek, Tama | 37 min |
| Jul 31, 9:45 PM CDT | Special Weather Statement | DVN | Jefferson, Keokuk, Van Buren | 60 min |
| Jul 31, 9:52 PM CDT | Special Weather Statement | DVN | Benton, Iowa | 53 min |
| Jul 31, 10:21 PM CDT | Special Weather Statement | DMX | Emmet, Hancock, Kossuth, Palo Alto, Winnebago | 39 min |
| Jul 31, 10:38 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Jefferson, Lee, Louisa, Muscatine and 2 more | 52 min |
| Jul 31, 10:40 PM CDT | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Delaware, Johnson, Jones and 1 more | 50 min |
| Jul 31, 10:41 PM CDT | Special Weather Statement | DMX | Worth | 34 min |
| Jul 31, 11:26 PM CDT | Special Weather Statement | DVN | Cedar, Johnson, Linn, Louisa, Muscatine | 49 min |
| Jul 31, 11:35 PM CDT | Special Weather Statement | ARX | Chickasaw, Howard, Mitchell | 25 min |
| Jul 31, 11:51 PM CDT | Special Weather Statement | DVN | Cedar, Jones, Linn, Muscatine, Scott | 54 min |
| Aug 1, 12:04 AM CDT | Special Weather Statement | ARX | Chickasaw, Howard | 26 min |
| Aug 1, 12:27 AM CDT | Special Weather Statement | ARX | Mitchell | 33 min |
| Aug 1, 12:33 AM CDT | Special Weather Statement | DVN | Clinton, Jackson, Scott | 57 min |
| Aug 3, 11:56 PM CDT | Mesoscale Discussion | SPC | Mitchell, Winnebago, Worth | 94 min |
| Aug 4, 3:12 AM CDT | Heat Advisory | OAX | Pottawattamie | 17 hr |
| Aug 4, 8:17 AM CDT | Special Weather Statement | ARX | Allamakee | 43 min |
| Aug 5, 11:02 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 9 hr |
| Aug 5, 2:06 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buena Vista, Butler, Cerro Gordo and 25 more | 114 min |
| Aug 5, 5:09 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Chickasaw, Clayton and 8 more | 66 min |
| Aug 5, 5:24 PM CDT | Tornado Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 15 more | 7 hr |
| Aug 5, 6:59 PM CDT | Mesoscale Discussion | SPC | Chickasaw, Floyd, Howard, Mitchell, Winneshiek, Worth | 61 min |
| Aug 5, 7:37 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Winnebago, Worth | 53 min |
| Aug 5, 7:57 PM CDT | Tornado Warning | DMX | Worth | 33 min |
| Aug 5, 8:11 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 49 min |
| Aug 5, 8:27 PM CDT | Tornado Warning | DMX | Worth | 21 min |
| Aug 5, 8:57 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 48 min |
| Aug 5, 9:07 PM CDT | Tornado Warning | ARX | Howard | 23 min |
| Aug 5, 9:31 PM CDT | Tornado Warning | ARX | Howard, Winneshiek | 44 min |
| Aug 5, 9:40 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 5 more | 65 min |
| Aug 5, 10:13 PM CDT | Tornado Warning | ARX | Allamakee, Winneshiek | 47 min |
| Aug 5, 10:43 PM CDT | Tornado Warning | ARX | Allamakee | 27 min |
| Aug 5, 11:25 PM CDT | Mesoscale Discussion | SPC | Clayton, Dubuque | 35 min |
| Aug 14, 3:17 AM CDT | Areal Flood Advisory | OAX | Mills, Pottawattamie | 3 hr |
| Aug 14, 3:58 AM CDT | Flash Flood Warning | OAX | Mills, Pottawattamie | 3 hr |
| Aug 14, 5:33 AM CDT | Special Weather Statement | DMX | Ringgold, Taylor | 42 min |
| Aug 14, 3:57 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills | 3 hr |
| Aug 14, 5:10 PM CDT | Flood Watch | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 9 hr |
| Aug 14, 5:34 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Cass, Dallas, Fremont and 11 more | 7 hr |
| Aug 14, 7:09 PM CDT | Mesoscale Discussion | SPC | Fremont | 96 min |
| Aug 14, 7:33 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 31 min |
| Aug 14, 8:43 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 32 min |
| Aug 14, 9:20 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 21 more | 115 min |
| Aug 14, 9:22 PM CDT | Special Weather Statement | DMX | Taylor | 23 min |
| Aug 14, 10:00 PM CDT | Flash Flood Warning | OAX | Pottawattamie | 5 hr |
| Aug 15, 2:09 AM CDT | Special Weather Statement | DVN | Cedar, Johnson | 66 min |
| Aug 15, 2:52 AM CDT | Special Weather Statement | DVN | Scott | 68 min |
| Aug 15, 1:14 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Carroll, Cass, Crawford, Greene and 6 more | 2 hr |
| Aug 15, 3:03 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Des Moines, Henry and 16 more | 2 hr |
| Aug 15, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 28 more | 7 hr |
| Aug 15, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 50 min |
| Aug 15, 6:14 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 33 more | 91 min |
| Aug 15, 6:37 PM CDT | Special Weather Statement | DVN | Iowa | 38 min |
| Aug 15, 7:58 PM CDT | Special Weather Statement | DVN | Keokuk | 47 min |
| Aug 15, 8:01 PM CDT | Special Weather Statement | DVN | Jefferson | 44 min |
| Aug 15, 8:02 PM CDT | Special Weather Statement | DMX | Clarke | 43 min |
| Aug 15, 8:04 PM CDT | Special Weather Statement | DMX | Davis | 41 min |
| Aug 15, 8:34 PM CDT | Special Weather Statement | DVN | Henry | 41 min |
| Aug 15, 8:46 PM CDT | Special Weather Statement | DMX | Davis | 14 min |
| Aug 15, 8:51 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Johnson, Keokuk, Lee and 5 more | 84 min |
| Aug 15, 9:12 PM CDT | Special Weather Statement | DVN | Des Moines, Henry | 48 min |
| Aug 15, 9:20 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry | 40 min |
| Aug 15, 9:27 PM CDT | Special Weather Statement | DVN | Des Moines, Henry | 78 min |
| Aug 15, 9:51 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 39 min |
| Aug 15, 10:52 PM CDT | Special Weather Statement | DVN | Scott | 53 min |
| Aug 16, 1:53 PM CDT | Mesoscale Discussion | SPC | Jackson | 3 hr |
| Aug 16, 4:33 PM CDT | Special Weather Statement | DVN | Jackson | 27 min |
| Aug 23, 1:46 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 54 hr |
| Aug 23, 1:55 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 54 hr |
| Aug 23, 1:59 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 54 hr |
| Aug 24, 1:29 PM CDT | Excessive Heat Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 1 more | 31 hr |
| Aug 24, 1:53 PM CDT | Excessive Heat Warning | FSD | Buena Vista, Cherokee, Clay, Ida, Lyon, O'Brien and 4 more | 30 hr |
| Aug 24, 1:58 PM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Aug 24, 2:08 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Des Moines, Henry and 11 more | 30 hr |
| Aug 25, 1:34 AM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 42 hr |
| Aug 25, 2:11 AM CDT | Excessive Heat Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 37 hr |
| Aug 25, 2:11 AM CDT | Excessive Heat Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 66 hr |
| Aug 25, 2:19 AM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 34 hr |
| Aug 25, 2:38 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 41 hr |
| Aug 25, 2:47 AM CDT | Excessive Heat Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 41 hr |
| Aug 25, 7:55 AM CDT | Dense Fog Advisory | FSD | Lyon, Osceola, Plymouth, Sioux, Woodbury | 3 hr |
| Aug 26, 1:48 AM CDT | Excessive Heat Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 18 hr |
| Aug 26, 2:55 AM CDT | Excessive Heat Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 17 hr |
| Aug 26, 3:32 AM CDT | Dense Fog Advisory | DMX | Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more | 4 hr |
| Aug 26, 3:32 AM CDT | Heat Advisory | DMX | Appanoose, Davis, Lucas, Mahaska, Marion, Monroe and 2 more | 40 hr |
| Aug 26, 12:18 PM CDT | Excessive Heat Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 8 hr |
| Aug 26, 1:57 PM CDT | Excessive Heat Warning | ARX | Clayton | 29 hr |
| Aug 26, 1:57 PM CDT | Heat Advisory | ARX | Allamakee, Fayette, Winneshiek | 29 hr |
| Aug 26, 3:07 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Iowa | 28 hr |
| Aug 26, 4:39 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 2 more | 96 min |
| Aug 26, 5:49 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 2 hr |
| Aug 26, 9:28 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Lyon and 6 more | 92 min |
| Aug 26, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 2 more | 6 hr |
| Aug 27, 12:41 AM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 94 min |
| Aug 27, 3:46 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Butler, Calhoun, Cerro Gordo, Chickasaw, Clay and 15 more | 59 min |
| Aug 27, 4:47 PM CDT | Mesoscale Discussion | SPC | Des Moines | 88 min |
| Aug 27, 6:54 PM CDT | Special Weather Statement | DVN | Lee | 51 min |
| Aug 27, 7:48 PM CDT | Special Weather Statement | DMX | Davis | 27 min |
| Aug 27, 7:48 PM CDT | Special Weather Statement | DVN | Des Moines, Lee | 42 min |
| Aug 27, 8:13 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 47 min |
| Aug 27, 8:34 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 41 min |
| Aug 27, 9:20 PM CDT | Special Weather Statement | DVN | Muscatine, Scott | 40 min |
| Aug 27, 10:02 PM CDT | Special Weather Statement | DVN | Cedar, Clinton, Muscatine, Scott | 43 min |
| Aug 27, 11:03 PM CDT | Special Weather Statement | DVN | Clinton, Jackson | 42 min |
| Aug 27, 11:32 PM CDT | Special Weather Statement | DMX | Adair, Adams, Clarke, Decatur, Lucas, Madison and 3 more | 28 min |
| Aug 28, 2:40 AM CDT | Dense Fog Advisory | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 9 hr |
| Aug 29, 2:21 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 25 min |
| Aug 29, 2:33 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, O'Brien, Osceola and 1 more | 6 hr |
| Aug 29, 2:35 PM CDT | Mesoscale Discussion | SPC | Crawford, Harrison, Ida, Monona, Woodbury | 115 min |
| Aug 29, 2:51 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 24 min |
| Aug 29, 3:17 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Cerro Gordo, Crawford and 17 more | 88 min |
| Aug 29, 4:01 PM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 44 min |
| Aug 29, 4:12 PM CDT | Special Weather Statement | OAX | Monona | 48 min |
| Aug 29, 4:15 PM CDT | Flash Flood Warning | FSD | Woodbury | 2 hr |
| Aug 29, 4:31 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 29 min |
| Aug 29, 4:43 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Crawford, Pocahontas, Sac | 47 min |
| Aug 29, 4:45 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 45 min |
| Aug 29, 4:55 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 35 min |
| Aug 29, 5:33 PM CDT | Special Weather Statement | ARX | Howard, Mitchell | 27 min |
| Aug 29, 5:58 PM CDT | Special Weather Statement | OAX | Pottawattamie, Shelby | 47 min |
| Aug 29, 6:46 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 29 min |
| Aug 29, 6:58 PM CDT | Special Weather Statement | ARX | Floyd | 32 min |
| Aug 29, 7:02 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 28 min |
| Aug 29, 7:21 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Howard | 39 min |
| Aug 29, 7:38 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Winneshiek | 37 min |
| Aug 29, 7:46 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Winneshiek | 3 hr |
| Aug 29, 7:47 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Howard, Winneshiek | 43 min |
| Aug 29, 8:18 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 27 min |
| Aug 29, 9:39 PM CDT | Special Weather Statement | DVN | Buchanan | 51 min |
| Aug 29, 9:43 PM CDT | Special Weather Statement | DVN | Benton, Iowa | 47 min |
| Aug 29, 11:00 PM CDT | Special Weather Statement | DVN | Cedar, Johnson, Jones, Linn | 45 min |
| Aug 29, 11:14 PM CDT | Areal Flood Advisory | ARX | Allamakee | 3 hr |
| Aug 29, 11:44 PM CDT | Special Weather Statement | DVN | Jones | 46 min |
| Aug 30, 12:02 AM CDT | Special Weather Statement | DVN | Jackson, Jones | 43 min |
| Aug 30, 12:22 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Jones | 38 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 | 29 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 49 |
| Flooding | |
| Flash Flood Warning | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 8 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 13 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Howard County18
- Osceola County16
- Des Moines County16
- Dickinson County15
- Chickasaw County15
- Winneshiek County15
- Worth County15
- Pottawattamie County15
- Lyon County14
- Allamakee County14
- Clay County14
- Mitchell County14
- Henry County14
- Ringgold County13
- Lucas County13
- Wayne County13
- O'Brien County13
- Sioux County13
- Fremont County13
- Guthrie County12
- Madison County12
- Marion County12
- Davis County12
- Plymouth County12
- Winnebago County12
- Mills County12
- Harrison County12
- Taylor County11
- Adair County11
- Dallas County11
- Warren County11
- Clarke County11
- Appanoose County11
- Monroe County11
- Iowa County11
- Keokuk County11
- Emmet County11
- Floyd County11
- Jefferson County11
- Lee County11
59 more counties
- Cedar County11
- Jones County11
- Union County10
- Audubon County10
- Decatur County10
- Mahaska County10
- Jasper County10
- Buena Vista County10
- Cerro Gordo County10
- Cherokee County10
- Hancock County10
- Kossuth County10
- Palo Alto County10
- Van Buren County10
- Louisa County10
- Muscatine County10
- Buchanan County10
- Johnson County10
- Scott County10
- Jackson County10
- Page County10
- Monona County10
- Adams County9
- Cass County9
- Polk County9
- Poweshiek County9
- Wapello County9
- Washington County9
- Linn County9
- Montgomery County9
- Woodbury County9
- Greene County8
- Boone County8
- Calhoun County8
- Bremer County8
- Butler County8
- Clayton County8
- Fayette County8
- Pocahontas County8
- Benton County8
- Delaware County8
- Clinton County8
- Shelby County8
- Crawford County8
- Story County7
- Carroll County7
- Franklin County7
- Humboldt County7
- Wright County7
- Dubuque County7
- Marshall County6
- Tama County6
- Webster County6
- Black Hawk County6
- Sac County6
- Ida County6
- Hardin County5
- Grundy County5
- Hamilton County4
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.