Alert archive / Iowa / 2009
Weather alerts in Iowa, August 2009
202 weather alerts in August 2009, 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 2009. Tap one for its archive.
- Alerts
- 202
- Warnings
- 133
- Watches
- 20
- Advisories
- 11
- Busiest day
- August 9, 200951 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, 7:43 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more | 2 hr |
| Aug 2, 8:32 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, O'Brien and 4 more | 28 min |
| Aug 2, 8:41 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 6 hr |
| Aug 2, 9:16 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 44 min |
| Aug 2, 10:57 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 48 min |
| Aug 2, 11:12 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 33 min |
| Aug 2, 11:21 PM CDT | Mesoscale Discussion | SPC | Allamakee, Buena Vista, Cerro Gordo, Cherokee, Chickasaw, Clay and 16 more | 84 min |
| Aug 2, 11:26 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 34 min |
| Aug 2, 11:32 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 28 min |
| Aug 2, 11:35 PM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien, Osceola | 40 min |
| Aug 2, 11:37 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Audubon, Black Hawk, Boone, Bremer, Butler and 35 more | 6 hr |
| Aug 2, 11:49 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 56 min |
| Aug 2, 11:57 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 48 min |
| Aug 3, 12:02 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 28 min |
| Aug 3, 12:25 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 50 min |
| Aug 3, 12:47 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Carroll, Greene, Hamilton, Humboldt and 4 more | 43 min |
| Aug 3, 1:03 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 42 min |
| Aug 3, 1:23 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Carroll, Dallas, Greene, Guthrie, Hamilton and 5 more | 35 min |
| Aug 3, 1:44 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 46 min |
| Aug 3, 2:07 AM CDT | Flash Flood Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 3 hr |
| Aug 3, 2:25 AM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 50 min |
| Aug 3, 3:08 AM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Sac | 52 min |
| Aug 3, 3:25 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene | 38 min |
| Aug 3, 4:29 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Guthrie | 46 min |
| Aug 3, 4:53 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie, Madison | 52 min |
| Aug 3, 6:58 PM CDT | Mesoscale Discussion | SPC | Plymouth, Sioux | 2 hr |
| Aug 4, 1:10 AM CDT | Severe Thunderstorm Watch | SPC | Fremont, Page | 6 hr |
| Aug 4, 1:13 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 35 min |
| Aug 4, 1:45 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 30 min |
| Aug 4, 4:06 AM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Davis, Decatur, Lee, Ringgold, Taylor and 2 more | 5 hr |
| Aug 4, 5:13 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 32 min |
| Aug 4, 6:48 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 57 min |
| Aug 4, 7:11 AM CDT | Mesoscale Discussion | SPC | Davis, Des Moines, Henry, Jefferson, Lee, Louisa and 2 more | 94 min |
| Aug 4, 7:26 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry | 64 min |
| Aug 7, 2:24 PM CDT | Special Weather Statement | DVN | Cedar, Clinton, Muscatine, Scott | 51 min |
| Aug 7, 3:55 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Monona, Plymouth and 4 more | 95 min |
| Aug 7, 8:58 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Buchanan, Buena Vista, Butler and 35 more | 92 min |
| Aug 7, 10:14 PM CDT | Severe Thunderstorm Watch | SPC | Black Hawk, Boone, Bremer, Buena Vista, Butler, Calhoun and 27 more | 6 hr |
| Aug 8, 12:42 AM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hamilton, Hardin, Marshall, Story | 48 min |
| Aug 8, 1:29 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 37 more | 2 hr |
| Aug 8, 1:42 AM CDT | Severe Thunderstorm Warning | DMX | Tama | 19 min |
| Aug 8, 2:05 AM CDT | Special Weather Statement | DVN | Benton, Buchanan | 70 min |
| Aug 8, 2:43 AM CDT | Heat Advisory | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 12 more | 40 hr |
| Aug 8, 3:38 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 14 hr |
| Aug 8, 3:57 AM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Carroll, Cass and 18 more | 15 hr |
| Aug 8, 5:31 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 118 min |
| Aug 8, 7:46 AM CDT | Special Weather Statement | DVN | Delaware, Dubuque, Jackson, Jones | 89 min |
| Aug 8, 12:16 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Lyon, Osceola | 29 min |
| Aug 8, 12:47 PM CDT | Tornado Watch | SPC | Lyon, Osceola | 5 hr |
| Aug 8, 3:27 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, Osceola | 33 min |
| Aug 9, 5:01 AM CDT | Mesoscale Discussion | SPC | Harrison, Monona, Pottawattamie | 59 min |
| Aug 9, 5:16 AM CDT | Severe Thunderstorm Watch | SPC | Harrison, Monona, Pottawattamie, Shelby | 6 hr |
| Aug 9, 6:30 AM CDT | Mesoscale Discussion | SPC | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 30 more | 2 hr |
| Aug 9, 6:54 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Black Hawk, Boone, Bremer, Buena Vista and 36 more | 7 hr |
| Aug 9, 6:57 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 48 min |
| Aug 9, 7:13 AM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 62 min |
| Aug 9, 7:32 AM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 43 min |
| Aug 9, 7:33 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 57 min |
| Aug 9, 8:10 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Greene, Sac | 50 min |
| Aug 9, 8:50 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Webster | 55 min |
| Aug 9, 9:30 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 60 min |
| Aug 9, 9:45 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story | 45 min |
| Aug 9, 9:55 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 68 more | 35 min |
| Aug 9, 10:07 AM CDT | Severe Thunderstorm Warning | DMX | Franklin, Grundy, Hamilton, Hardin, Marshall, Story | 53 min |
| Aug 9, 10:21 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Buchanan, Cedar, Clayton, Clinton and 9 more | 8 hr |
| Aug 9, 10:38 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Butler, Grundy, Marshall, Tama | 67 min |
| Aug 9, 11:05 AM CDT | Tornado Warning | DMX | Black Hawk, Grundy | 40 min |
| Aug 9, 11:16 AM CDT | Mesoscale Discussion | SPC | Harrison, Pottawattamie, Shelby | 29 min |
| Aug 9, 11:31 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 59 min |
| Aug 9, 11:46 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 18 min |
| Aug 9, 12:13 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jones, Linn | 77 min |
| Aug 9, 12:34 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 86 min |
| Aug 9, 1:18 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Taylor | 27 min |
| Aug 9, 1:40 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 23 more | 35 min |
| Aug 9, 1:44 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 61 min |
| Aug 9, 2:31 PM CDT | Flash Flood Warning | DVN | Buchanan, Delaware, Dubuque | 6 hr |
| Aug 9, 2:35 PM CDT | Flash Flood Watch | ARX | Clayton, Fayette | 12 hr |
| Aug 9, 2:39 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 42 min |
| Aug 9, 3:35 PM CDT | Flash Flood Watch | DMX | Black Hawk, Bremer, Grundy, Hardin, Tama | 5 hr |
| Aug 9, 3:41 PM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 11 hr |
| Aug 9, 3:44 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 32 more | 6 hr |
| Aug 9, 4:00 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 45 min |
| Aug 9, 4:24 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 36 min |
| Aug 9, 4:28 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 50 min |
| Aug 9, 5:06 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 39 min |
| Aug 9, 5:12 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 39 min |
| Aug 9, 5:18 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Madison, Union, Warren | 57 min |
| Aug 9, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 49 min |
| Aug 9, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Warren | 41 min |
| Aug 9, 5:49 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Davis, Decatur and 18 more | 86 min |
| Aug 9, 5:52 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 38 min |
| Aug 9, 5:52 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 8 hr |
| Aug 9, 5:53 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk | 52 min |
| Aug 9, 6:04 PM CDT | Areal Flood Advisory | DMX | Polk, Warren | 2 hr |
| Aug 9, 6:15 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Warren | 45 min |
| Aug 9, 6:17 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 43 min |
| Aug 9, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Poweshiek | 50 min |
| Aug 9, 6:28 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 47 min |
| Aug 9, 6:33 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Poweshiek, Tama | 57 min |
| Aug 9, 6:47 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Keokuk | 58 min |
| Aug 9, 6:54 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Tama | 51 min |
| Aug 9, 7:00 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 45 min |
| Aug 9, 7:32 PM CDT | Areal Flood Advisory | DMX | Clarke, Decatur, Lucas, Wayne | 2 hr |
| Aug 9, 7:34 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Keokuk, Linn, Louisa and 1 more | 56 min |
| Aug 9, 7:47 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 58 min |
| Aug 9, 8:07 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn, Muscatine | 68 min |
| Aug 9, 8:30 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Des Moines, Henry and 8 more | 90 min |
| Aug 9, 8:50 PM CDT | Special Weather Statement | DVN | Clinton, Jackson, Scott | 55 min |
| Aug 9, 8:53 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines | 52 min |
| Aug 9, 8:54 PM CDT | Flash Flood Warning | DVN | Des Moines | 3 hr |
| Aug 9, 8:54 PM CDT | Special Weather Statement | DVN | Clinton, Jackson, Scott | 51 min |
| Aug 9, 9:36 PM CDT | Flash Flood Warning | DVN | Dubuque, Jackson | 3 hr |
| Aug 10, 6:04 PM CDT | Areal Flood Advisory | DMX | Black Hawk | 110 min |
| Aug 10, 6:41 PM CDT | Areal Flood Advisory | DMX | Grundy | 74 min |
| Aug 12, 4:03 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 44 more | 87 min |
| Aug 13, 2:44 AM CDT | Areal Flood Advisory | DMX | Black Hawk, Bremer, Butler | 5 hr |
| Aug 13, 11:47 AM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 40 min |
| Aug 13, 12:45 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 30 min |
| Aug 16, 11:34 PM CDT | Special Weather Statement | DVN | Lee | 116 min |
| Aug 17, 12:19 AM CDT | Flash Flood Warning | DVN | Lee | 8 hr |
| Aug 17, 1:22 AM CDT | Mesoscale Discussion | SPC | Davis, Des Moines, Henry, Jefferson, Lee, Louisa and 3 more | 83 min |
| Aug 17, 2:55 AM CDT | Flash Flood Watch | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Monroe and 3 more | 9 hr |
| Aug 17, 3:49 AM CDT | Flash Flood Watch | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 11 hr |
| Aug 17, 4:56 AM CDT | Areal Flood Advisory | DMX | Appanoose | 5 hr |
| Aug 17, 6:58 AM CDT | Special Weather Statement | DVN | Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more | 77 min |
| Aug 17, 2:30 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 13 hr |
| Aug 19, 11:51 AM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Lee, Louisa and 2 more | 114 min |
| Aug 19, 12:49 PM CDT | Tornado Watch | SPC | Cedar, Clinton, Des Moines, Henry, Lee, Louisa and 2 more | 6 hr |
| Aug 19, 1:27 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Louisa | 63 min |
| Aug 19, 3:33 PM CDT | Tornado Warning | ARX | Fayette | 42 min |
| Aug 19, 3:43 PM CDT | Tornado Warning | ARX | Winneshiek | 62 min |
| Aug 19, 4:15 PM CDT | Tornado Warning | ARX | Fayette | 30 min |
| Aug 19, 4:26 PM CDT | Tornado Warning | ARX | Allamakee | 49 min |
| Aug 19, 4:30 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 30 min |
| Aug 19, 4:32 PM CDT | Tornado Warning | DVN | Buchanan | 43 min |
| Aug 19, 4:34 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Delaware, Dubuque, Jackson, Jones and 1 more | 56 min |
| Aug 19, 4:38 PM CDT | Tornado Warning | ARX | Clayton, Fayette | 52 min |
| Aug 19, 4:49 PM CDT | Tornado Watch | SPC | Allamakee, Buchanan, Cedar, Clayton, Clinton, Delaware and 10 more | 5 hr |
| Aug 19, 4:57 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 33 min |
| Aug 19, 5:04 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 56 min |
| Aug 19, 5:19 PM CDT | Mesoscale Discussion | SPC | Adams, Buena Vista, Cass, Cherokee, Crawford, Fremont and 14 more | 26 min |
| Aug 19, 5:20 PM CDT | Tornado Warning | ARX | Allamakee | 31 min |
| Aug 19, 5:31 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 29 min |
| Aug 19, 5:32 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 43 more | 6 hr |
| Aug 19, 5:48 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 42 min |
| Aug 19, 5:49 PM CDT | Severe Thunderstorm Warning | OAX | Page | 26 min |
| Aug 19, 5:59 PM CDT | Areal Flood Advisory | ARX | Allamakee | 47 min |
| Aug 19, 7:28 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 47 min |
| Aug 19, 7:44 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 46 min |
| Aug 19, 7:45 PM CDT | Mesoscale Discussion | SPC | Allamakee, Buchanan, Cedar, Clayton, Clinton, Delaware and 10 more | 90 min |
| Aug 19, 8:34 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 22 min |
| Aug 20, 8:43 AM CDT | River Flood Warning | DVN | Clinton, Scott | 7 hr |
| Aug 20, 1:51 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 20 more | 114 min |
| Aug 24, 11:36 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 39 min |
| Aug 24, 11:55 PM CDT | Flash Flood Warning | FSD | Plymouth, Woodbury | 3 hr |
| Aug 26, 1:27 AM CDT | Flash Flood Warning | DVN | Benton, Jones, Linn | 3 hr |
| Aug 26, 2:04 AM CDT | Areal Flood Advisory | DMX | Tama | 4 hr |
| Aug 26, 9:10 AM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 42 hr |
| Aug 26, 9:17 AM CDT | Flash Flood Warning | DVN | Keokuk, Washington | 6 hr |
| Aug 26, 9:38 AM CDT | Areal Flood Warning | DVN | Benton, Linn | 12 hr |
| Aug 26, 9:56 AM CDT | River Flood Warning | DVN | Clinton, Scott | 7 days |
| Aug 26, 10:14 AM CDT | Flash Flood Warning | DVN | Muscatine, Scott | 6 hr |
| Aug 26, 11:51 AM CDT | Flash Flood Warning | DVN | Clinton | 6 hr |
| Aug 26, 2:19 PM CDT | Special Weather Statement | DVN | Iowa, Johnson | 56 min |
| Aug 26, 9:54 PM CDT | River Flood Warning | DVN | Iowa, Johnson | 5 days |
| Aug 27, 12:57 AM CDT | Flash Flood Warning | DVN | Henry, Jefferson, Keokuk, Washington | 6 hr |
| Aug 27, 1:53 AM CDT | Special Weather Statement | DVN | Iowa, Johnson | 6 hr |
| Aug 27, 2:06 AM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Iowa, Johnson, Linn, Muscatine and 1 more | 3 hr |
| Aug 27, 2:30 AM CDT | River Flood Warning | DMX | Lucas, Wayne | 4 days |
| Aug 27, 2:41 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 35 hr |
| Aug 27, 3:59 AM CDT | River Flood Warning | DVN | Johnson, Washington | 4 days |
| Aug 27, 3:59 AM CDT | River Flood Warning | DVN | Keokuk | 5 days |
| Aug 27, 7:19 AM CDT | Special Weather Statement | DVN | Iowa, Johnson | 4 hr |
| Aug 27, 7:55 AM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Keokuk, Linn | 6 hr |
| Aug 27, 8:51 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 19 hr |
| Aug 27, 9:09 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 5 days |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 4 days |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 49 hr |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Louisa | 5 days |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Louisa | 5 days |
| Aug 27, 11:53 AM CDT | Areal Flood Warning | DMX | Tama | 12 hr |
| Aug 27, 1:42 PM CDT | Flash Flood Warning | DVN | Jackson, Jones | 6 hr |
| Aug 27, 1:56 PM CDT | Areal Flood Warning | DVN | Benton, Linn | 21 hr |
| Aug 27, 3:49 PM CDT | River Flood Warning | DVN | Jones, Linn | 37 hr |
| Aug 27, 5:06 PM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Jones | 6 hr |
| Aug 27, 5:51 PM CDT | Flash Flood Warning | DVN | Johnson | 6 hr |
| Aug 27, 5:53 PM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 6 hr |
| Aug 27, 6:17 PM CDT | Flash Flood Warning | DVN | Muscatine, Scott | 6 hr |
| Aug 27, 6:31 PM CDT | Flash Flood Warning | DVN | Louisa, Washington | 6 hr |
| Aug 27, 8:56 PM CDT | River Flood Warning | DVN | Jackson | 43 hr |
| Aug 27, 9:34 PM CDT | Flash Flood Warning | DVN | Des Moines, Lee | 2 hr |
| Aug 27, 11:09 PM CDT | Areal Flood Warning | DVN | Cedar, Clinton, Jones | 12 hr |
| Aug 27, 11:39 PM CDT | Areal Flood Warning | DVN | Des Moines, Henry, Lee | 12 hr |
| Aug 28, 12:03 AM CDT | Areal Flood Warning | DVN | Johnson, Louisa, Muscatine, Washington | 12 hr |
| Aug 28, 3:46 AM CDT | River Flood Warning | DVN | Lee | 6 hr |
| Aug 28, 6:38 AM CDT | River Flood Warning | DVN | Cedar, Johnson, Linn | 14 hr |
| Aug 28, 10:52 AM CDT | Areal Flood Warning | DVN | Benton, Linn | 48 hr |
| Aug 28, 11:02 AM CDT | Areal Flood Warning | DVN | Jones | 42 hr |
| Aug 28, 12:00 PM CDT | Areal Flood Warning | DVN | Johnson | 48 hr |
| Aug 28, 6:58 PM CDT | Special Weather Statement | DVN | Buchanan, Delaware, Dubuque | 47 min |
| Aug 28, 7:28 PM CDT | Special Weather Statement | DVN | Buchanan, Delaware, Dubuque, Jones | 32 min |
| Aug 28, 8:02 PM CDT | Special Weather Statement | DVN | Buchanan, Clinton, Delaware, Jackson, Jones | 58 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jones County24
- Linn County24
- Johnson County22
- Clinton County21
- Jackson County21
- Benton County20
- Woodbury County19
- Buchanan County19
- Dubuque County19
- Tama County18
- Des Moines County18
- Cedar County18
- Scott County18
- Delaware County18
- Grundy County17
- Hamilton County17
- Sac County17
- Lee County17
- Louisa County17
- Muscatine County17
- Iowa County17
- Cherokee County16
- Ida County16
- Plymouth County16
- Black Hawk County16
- Greene County16
- Marshall County16
- Henry County16
- Sioux County15
- Boone County15
- Hardin County15
- Calhoun County14
- Carroll County14
- Polk County14
- Story County14
- Webster County14
- Wright County14
- Lyon County13
- Allamakee County13
- Crawford County13
59 more counties
- Dallas County13
- Fremont County13
- Buena Vista County12
- Clay County12
- Hancock County12
- Winneshiek County12
- Fayette County12
- Guthrie County12
- Washington County12
- Clarke County12
- O'Brien County11
- Kossuth County11
- Cerro Gordo County11
- Bremer County11
- Butler County11
- Franklin County11
- Pocahontas County11
- Page County11
- Jefferson County11
- Harrison County11
- Shelby County11
- Keokuk County11
- Warren County11
- Dickinson County10
- Monona County10
- Osceola County10
- Palo Alto County10
- Winnebago County10
- Audubon County10
- Clayton County10
- Humboldt County10
- Jasper County10
- Madison County10
- Decatur County10
- Taylor County10
- Wayne County10
- Pottawattamie County10
- Adair County10
- Cass County10
- Lucas County10
- Marion County10
- Floyd County9
- Ringgold County9
- Van Buren County9
- Adams County9
- Union County9
- Emmet County8
- Chickasaw County8
- Poweshiek County8
- Appanoose County8
- Davis County8
- Mahaska County8
- Worth County7
- Wapello County7
- Montgomery County7
- Mitchell County6
- Mills County6
- Monroe County6
- Howard County5
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.