Alert archive / Iowa / 2015
Weather alerts in Iowa, September 2015
157 weather alerts in September 2015, 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 2015. Tap one for its archive.
- Alerts
- 157
- Warnings
- 54
- Watches
- 12
- Advisories
- 5
- Busiest day
- September 18, 201532 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 6, 4:06 AM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 27 more | 28 hr |
| Sep 6, 4:24 AM CDT | Flash Flood Watch | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie, Shelby | 24 hr |
| Sep 6, 2:31 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Sioux | 119 min |
| Sep 6, 5:12 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Winneshiek | 2 hr |
| Sep 6, 5:26 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 28 more | 94 min |
| Sep 6, 5:55 PM CDT | Special Weather Statement | DMX | Calhoun | 35 min |
| Sep 6, 6:02 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Allamakee, Audubon, Black Hawk, Boone and 47 more | 7 hr |
| Sep 6, 6:05 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas | 40 min |
| Sep 6, 6:13 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 47 min |
| Sep 6, 6:18 PM CDT | Special Weather Statement | OAX | Shelby | 57 min |
| Sep 6, 6:24 PM CDT | Special Weather Statement | ARX | Floyd | 36 min |
| Sep 6, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 35 min |
| Sep 6, 6:30 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 45 min |
| Sep 6, 6:52 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 53 min |
| Sep 6, 7:09 PM CDT | Special Weather Statement | ARX | Mitchell | 36 min |
| Sep 6, 7:19 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 26 min |
| Sep 6, 7:41 PM CDT | Special Weather Statement | ARX | Floyd | 34 min |
| Sep 6, 7:54 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Webster | 30 min |
| Sep 6, 7:55 PM CDT | Flash Flood Warning | DMX | Calhoun, Carroll | 6 hr |
| Sep 6, 8:14 PM CDT | Flash Flood Warning | DMX | Boone, Carroll, Greene | 6 hr |
| Sep 6, 8:16 PM CDT | Special Weather Statement | ARX | Floyd, Mitchell | 29 min |
| Sep 6, 8:28 PM CDT | Special Weather Statement | DMX | Boone | 17 min |
| Sep 6, 8:42 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 44 more | 93 min |
| Sep 6, 8:44 PM CDT | Special Weather Statement | OAX | Fremont | 46 min |
| Sep 6, 8:53 PM CDT | Special Weather Statement | OAX | Harrison | 52 min |
| Sep 6, 9:08 PM CDT | Special Weather Statement | DMX | Guthrie | 52 min |
| Sep 6, 9:12 PM CDT | Flash Flood Warning | DMX | Audubon, Boone, Dallas, Greene, Guthrie | 6 hr |
| Sep 6, 9:12 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Polk | 28 min |
| Sep 6, 9:18 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 27 min |
| Sep 6, 9:39 PM CDT | Special Weather Statement | DMX | Polk | 51 min |
| Sep 6, 10:00 PM CDT | Flash Flood Warning | DMX | Boone, Dallas | 6 hr |
| Sep 6, 10:05 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 40 min |
| Sep 6, 11:41 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 38 more | 64 min |
| Sep 7, 1:21 AM CDT | Flash Flood Warning | DMX | Ringgold, Taylor | 6 hr |
| Sep 7, 1:51 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Mahaska, Monroe, Wapello | 54 min |
| Sep 7, 2:06 AM CDT | Areal Flood Warning | DMX | Audubon, Boone, Carroll, Dallas, Greene, Guthrie | 36 hr |
| Sep 7, 3:24 AM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 28 hr |
| Sep 7, 4:19 AM CDT | Flash Flood Watch | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 22 hr |
| Sep 7, 4:21 AM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 30 hr |
| Sep 7, 9:04 AM CDT | River Flood Warning | DMX | Dallas, Greene | 3 days |
| Sep 7, 2:18 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Page | 87 min |
| Sep 7, 8:38 PM CDT | Mesoscale Discussion | SPC | Fremont | 67 min |
| Sep 7, 10:48 PM CDT | River Flood Warning | DMX | Polk | 4 days |
| Sep 8, 12:22 AM CDT | Special Weather Statement | OAX | Fremont, Mills | 38 min |
| Sep 8, 2:43 AM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 7 hr |
| Sep 8, 3:06 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 24 min |
| Sep 8, 3:23 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 36 min |
| Sep 8, 3:33 AM CDT | Special Weather Statement | OAX | Monona | 42 min |
| Sep 8, 4:00 AM CDT | Special Weather Statement | DVN | Scott | 60 min |
| Sep 8, 9:54 AM CDT | Special Weather Statement | DVN | Lee | 51 min |
| Sep 8, 1:43 PM CDT | River Flood Warning | DMX | Polk | 41 hr |
| Sep 9, 4:41 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 34 min |
| Sep 9, 5:03 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 42 min |
| Sep 9, 5:10 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Sioux | 2 hr |
| Sep 9, 5:48 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 42 min |
| Sep 10, 12:36 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 20 min |
| Sep 10, 1:02 AM CDT | Special Weather Statement | DMX | Cerro Gordo | 58 min |
| Sep 10, 5:55 AM CDT | Special Weather Statement | DMX | Winnebago | 65 min |
| Sep 10, 6:57 AM CDT | Special Weather Statement | ARX | Chickasaw | 48 min |
| Sep 10, 7:23 AM CDT | Special Weather Statement | ARX | Chickasaw, Fayette | 52 min |
| Sep 10, 7:30 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 15 min |
| Sep 10, 8:05 AM CDT | Special Weather Statement | ARX | Clayton | 40 min |
| Sep 10, 9:00 AM CDT | Special Weather Statement | DVN | Dubuque | 75 min |
| Sep 10, 11:38 AM CDT | Special Weather Statement | DVN | Scott | 37 min |
| Sep 10, 1:43 PM CDT | Special Weather Statement | DVN | Louisa | 32 min |
| Sep 10, 5:18 PM CDT | Special Weather Statement | ARX | Clayton, Fayette | 27 min |
| Sep 10, 8:06 PM CDT | Special Weather Statement | DVN | Van Buren | 24 min |
| Sep 10, 8:15 PM CDT | Special Weather Statement | DMX | Davis | 30 min |
| Sep 10, 8:22 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Lee and 4 more | 113 min |
| Sep 10, 8:25 PM CDT | Special Weather Statement | DMX | Mahaska | 35 min |
| Sep 10, 8:30 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 30 min |
| Sep 10, 8:40 PM CDT | Special Weather Statement | DMX | Monroe | 50 min |
| Sep 10, 9:00 PM CDT | Special Weather Statement | DMX | Wapello | 45 min |
| Sep 10, 9:31 PM CDT | Special Weather Statement | DMX | Wapello | 44 min |
| Sep 10, 10:09 PM CDT | Special Weather Statement | DMX | Davis | 51 min |
| Sep 10, 10:14 PM CDT | Special Weather Statement | DMX | Appanoose | 16 min |
| Sep 14, 7:12 PM CDT | Special Weather Statement | DMX | Kossuth | 63 min |
| Sep 14, 8:01 PM CDT | Special Weather Statement | DMX | Winnebago | 59 min |
| Sep 17, 4:06 AM CDT | Special Weather Statement | DMX | Calhoun, Carroll, Sac | 39 min |
| Sep 17, 8:42 AM CDT | Special Weather Statement | DVN | Linn | 33 min |
| Sep 17, 9:10 AM CDT | Special Weather Statement | DMX | Jasper | 35 min |
| Sep 17, 9:42 AM CDT | Special Weather Statement | DMX | Warren | 48 min |
| Sep 17, 10:58 AM CDT | Special Weather Statement | DVN | Cedar, Iowa, Johnson, Keokuk, Linn, Muscatine and 1 more | 92 min |
| Sep 17, 11:00 AM CDT | Special Weather Statement | DVN | Cedar, Iowa, Johnson, Keokuk, Linn, Muscatine and 1 more | 90 min |
| Sep 17, 11:47 AM CDT | Severe Thunderstorm Warning | DVN | Johnson, Keokuk, Louisa, Washington | 28 min |
| Sep 17, 12:19 PM CDT | Special Weather Statement | DVN | Louisa | 71 min |
| Sep 17, 1:04 PM CDT | Special Weather Statement | DVN | Jones, Linn | 41 min |
| Sep 17, 2:16 PM CDT | Special Weather Statement | DVN | Dubuque | 59 min |
| Sep 17, 2:30 PM CDT | Special Weather Statement | ARX | Allamakee, Clayton, Fayette, Winneshiek | 60 min |
| Sep 17, 3:58 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Chickasaw, Clay, Dickinson and 14 more | 2 hr |
| Sep 17, 5:47 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Clarke, Dallas, Decatur, Fremont and 9 more | 118 min |
| Sep 17, 6:38 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 7 more | 6 hr |
| Sep 17, 7:24 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 36 min |
| Sep 17, 7:50 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 25 min |
| Sep 17, 7:54 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren | 66 min |
| Sep 17, 8:06 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 24 min |
| Sep 17, 8:50 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Muscatine, Washington | 25 min |
| Sep 17, 9:14 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Muscatine | 31 min |
| Sep 17, 9:47 PM CDT | Special Weather Statement | DVN | Scott | 28 min |
| Sep 17, 9:59 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 46 min |
| Sep 17, 10:12 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Lucas, Monroe, Ringgold and 1 more | 63 min |
| Sep 17, 11:12 PM CDT | Special Weather Statement | DMX | Monroe | 33 min |
| Sep 17, 11:55 PM CDT | Flash Flood Warning | DVN | Clinton, Jackson | 6 hr |
| Sep 18, 12:25 AM CDT | Special Weather Statement | DVN | Jackson | 65 min |
| Sep 18, 12:29 AM CDT | Special Weather Statement | DMX | Davis | 16 min |
| Sep 18, 12:29 AM CDT | Special Weather Statement | DVN | Van Buren | 61 min |
| Sep 18, 12:51 AM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 24 min |
| Sep 18, 1:18 AM CDT | Special Weather Statement | DVN | Lee | 57 min |
| Sep 18, 1:25 AM CDT | Special Weather Statement | DVN | Scott | 65 min |
| Sep 18, 3:51 AM CDT | Flash Flood Watch | DVN | Cedar, Clinton, Jackson, Muscatine, Scott | 20 hr |
| Sep 18, 9:25 AM CDT | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Mills, Montgomery, Page and 4 more | 65 min |
| Sep 18, 9:36 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 24 min |
| Sep 18, 9:53 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Page | 37 min |
| Sep 18, 10:11 AM CDT | Special Weather Statement | DMX | Appanoose, Davis | 64 min |
| Sep 18, 10:16 AM CDT | Special Weather Statement | OAX | Harrison, Pottawattamie | 29 min |
| Sep 18, 10:30 AM CDT | Special Weather Statement | DMX | Lucas | 45 min |
| Sep 18, 10:34 AM CDT | Special Weather Statement | DMX | Adair, Adams | 56 min |
| Sep 18, 10:51 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Marion, Warren | 39 min |
| Sep 18, 11:23 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 26 min |
| Sep 18, 11:48 AM CDT | Special Weather Statement | OAX | Mills | 27 min |
| Sep 18, 1:13 PM CDT | Special Weather Statement | DMX | Clarke, Madison, Ringgold, Union, Warren | 62 min |
| Sep 18, 3:37 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 23 min |
| Sep 18, 3:39 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Washington | 41 min |
| Sep 18, 5:20 PM CDT | Mesoscale Discussion | SPC | Davis, Des Moines, Henry, Lee, Van Buren | 2 hr |
| Sep 18, 7:36 PM CDT | Special Weather Statement | DVN | Henry, Jefferson, Johnson, Louisa, Washington | 24 min |
| Sep 18, 8:02 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Louisa, Muscatine | 58 min |
| Sep 18, 8:50 PM CDT | Special Weather Statement | DVN | Muscatine, Scott | 55 min |
| Sep 19, 4:46 AM CDT | Dense Fog Advisory | FSD | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more | 6 hr |
| Sep 19, 6:33 AM CDT | River Flood Warning | DVN | Johnson, Washington | 64 hr |
| Sep 22, 12:12 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 48 min |
| Sep 22, 12:54 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 36 min |
| Sep 22, 1:06 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Carroll, Cass, Crawford, Dallas and 6 more | 84 min |
| Sep 22, 1:07 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 38 min |
| Sep 22, 1:39 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 27 min |
| Sep 22, 1:48 PM CDT | Special Weather Statement | DMX | Carroll, Crawford | 57 min |
| Sep 22, 2:10 PM CDT | Special Weather Statement | OAX | Harrison | 50 min |
| Sep 22, 2:51 PM CDT | Special Weather Statement | OAX | Shelby | 39 min |
| Sep 22, 3:20 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 25 min |
| Sep 22, 3:24 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 36 min |
| Sep 22, 4:09 PM CDT | Special Weather Statement | DMX | Adair | 66 min |
| Sep 22, 6:09 PM CDT | Special Weather Statement | OAX | Montgomery | 36 min |
| Sep 22, 6:12 PM CDT | Special Weather Statement | DMX | Adams, Taylor | 63 min |
| Sep 22, 7:04 PM CDT | Special Weather Statement | OAX | Page | 41 min |
| Sep 23, 3:18 AM CDT | Special Weather Statement | OAX | Monona | 42 min |
| Sep 23, 3:56 AM CDT | Special Weather Statement | OAX | Harrison | 49 min |
| Sep 23, 4:14 AM CDT | Flash Flood Watch | FSD | Cherokee, Ida, Plymouth, Sioux, Woodbury | 27 hr |
| Sep 23, 4:27 AM CDT | Special Weather Statement | OAX | Pottawattamie | 48 min |
| Sep 23, 4:31 AM CDT | Flash Flood Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 28 hr |
| Sep 23, 4:46 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 29 min |
| Sep 23, 5:01 AM CDT | Flash Flood Warning | OAX | Pottawattamie | 3 hr |
| Sep 23, 7:00 AM CDT | Flash Flood Warning | OAX | Mills, Pottawattamie | 3 hr |
| Sep 23, 9:17 AM CDT | Flash Flood Watch | DMX | Adair, Adams, Audubon, Carroll, Cass, Crawford and 2 more | 19 hr |
| Sep 23, 9:52 AM CDT | Areal Flood Warning | OAX | Pottawattamie | 6 hr |
| Sep 23, 3:44 PM CDT | Areal Flood Advisory | OAX | Page | 6 hr |
| Sep 23, 9:27 PM CDT | Areal Flood Advisory | OAX | Pottawattamie | 3 hr |
| Sep 23, 10:31 PM CDT | Areal Flood Advisory | OAX | Monona | 3 hr |
| Sep 24, 8:29 PM CDT | Areal Flood Advisory | OAX | Harrison, Mills, Monona, Pottawattamie | 6 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 | 40 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 70 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 8 |
| River Flood Warning | 4 |
| Flash Flood Watch | 10 |
| Areal Flood Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County17
- Pottawattamie County16
- Mills County15
- Page County15
- Harrison County14
- Boone County12
- Dallas County12
- Davis County12
- Greene County12
- Guthrie County12
- Carroll County12
- Adams County11
- Audubon County11
- Ringgold County11
- Taylor County11
- Shelby County11
- Calhoun County11
- Adair County10
- Appanoose County10
- Cass County10
- Clarke County10
- Polk County10
- Montgomery County10
- Monona County10
- Louisa County10
- Union County9
- Warren County9
- Lucas County8
- Monroe County8
- Wapello County8
- Chickasaw County8
- Crawford County8
- Hancock County8
- Winnebago County8
- Cerro Gordo County8
- Floyd County8
- Muscatine County8
- Scott County8
- Van Buren County8
- Washington County8
59 more counties
- Decatur County7
- Madison County7
- Osceola County7
- Hamilton County6
- Jasper County6
- Howard County6
- Winneshiek County6
- Humboldt County6
- Kossuth County6
- Pocahontas County6
- Webster County6
- Fayette County6
- Mitchell County6
- Henry County6
- Jefferson County6
- Johnson County6
- Lee County6
- Black Hawk County5
- Grundy County5
- Hardin County5
- Mahaska County5
- Marshall County5
- Story County5
- Wayne County5
- Lyon County5
- O'Brien County5
- Sioux County5
- Allamakee County5
- Sac County5
- Woodbury County5
- Wright County5
- Franklin County5
- Worth County5
- Clayton County5
- Des Moines County5
- Keokuk County5
- Linn County5
- Marion County4
- Tama County4
- Cherokee County4
- Plymouth County4
- Bremer County4
- Butler County4
- Cedar County4
- Clinton County4
- Jackson County4
- Poweshiek County3
- Dickinson County3
- Emmet County3
- Ida County3
- Palo Alto County3
- Dubuque County3
- Iowa County3
- Buena Vista County2
- Clay County2
- Benton County2
- Buchanan County2
- Jones County2
- Delaware County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.