Alert archive / Iowa / 2004
Weather alerts in Iowa, September 2004
85 weather alerts in September 2004, 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 2004. Tap one for its archive.
- Alerts
- 85
- Warnings
- 68
- Watches
- 4
- Advisories
- 0
- Busiest day
- September 5, 200419 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 1, 3:20 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Buchanan, Butler, Cedar and 28 more | 115 min |
| Sep 5, 2:34 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 26 more | 56 min |
| Sep 5, 3:00 PM CDT | Tornado Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 51 more | 6 hr |
| Sep 5, 3:17 PM CDT | Tornado Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 28 min |
| Sep 5, 3:30 PM CDT | Tornado Warning | FSD | Lyon, Osceola | 45 min |
| Sep 5, 3:32 PM CDT | Tornado Warning | DMX | Crawford | 43 min |
| Sep 5, 3:44 PM CDT | Tornado Warning | FSD | Cherokee, O'Brien | 46 min |
| Sep 5, 4:33 PM CDT | Tornado Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 27 min |
| Sep 5, 4:41 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 34 min |
| Sep 5, 4:57 PM CDT | Tornado Warning | FSD | Dickinson | 33 min |
| Sep 5, 5:02 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 43 min |
| Sep 5, 5:39 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 55 more | 96 min |
| Sep 5, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 35 min |
| Sep 5, 6:04 PM CDT | Tornado Warning | DMX | Greene | 26 min |
| Sep 5, 6:27 PM CDT | Tornado Warning | DMX | Boone, Story | 33 min |
| Sep 5, 6:33 PM CDT | Tornado Warning | DMX | Greene, Webster | 27 min |
| Sep 5, 6:37 PM CDT | Tornado Warning | DMX | Madison | 38 min |
| Sep 5, 6:46 PM CDT | Tornado Warning | DMX | Union | 29 min |
| Sep 5, 6:50 PM CDT | Tornado Warning | DMX | Hamilton, Webster | 25 min |
| Sep 5, 6:58 PM CDT | Tornado Warning | DMX | Story | 32 min |
| Sep 5, 7:15 PM CDT | Tornado Warning | DMX | Hamilton, Wright | 30 min |
| Sep 5, 7:16 PM CDT | Tornado Warning | DMX | Madison | 29 min |
| Sep 5, 7:28 PM CDT | Tornado Warning | DMX | Hardin, Story | 47 min |
| Sep 5, 7:39 PM CDT | Tornado Warning | DMX | Warren | 36 min |
| Sep 5, 7:56 PM CDT | Tornado Warning | DMX | Polk | 49 min |
| Sep 5, 8:03 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 40 more | 57 min |
| Sep 5, 8:17 PM CDT | Tornado Warning | DMX | Story | 43 min |
| Sep 5, 8:44 PM CDT | Tornado Warning | DMX | Lucas, Warren | 31 min |
| Sep 5, 8:48 PM CDT | Tornado Warning | DMX | Jasper, Polk | 27 min |
| Sep 5, 9:03 PM CDT | Tornado Warning | DMX | Marshall, Story | 42 min |
| Sep 13, 3:21 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 84 min |
| Sep 13, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 8 more | 7 hr |
| Sep 13, 6:40 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 35 min |
| Sep 13, 8:59 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 61 min |
| Sep 14, 1:47 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 23 more | 88 min |
| Sep 14, 2:45 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 33 more | 7 hr |
| Sep 14, 4:21 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 39 min |
| Sep 14, 4:42 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 33 min |
| Sep 14, 4:44 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 31 min |
| Sep 14, 4:59 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 31 min |
| Sep 14, 5:11 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 34 min |
| Sep 14, 5:14 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 32 more | 2 hr |
| Sep 14, 5:16 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 44 min |
| Sep 14, 5:43 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 47 min |
| Sep 14, 6:00 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 30 min |
| Sep 14, 6:02 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 28 min |
| Sep 14, 6:12 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 18 min |
| Sep 14, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 45 min |
| Sep 14, 6:51 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 39 min |
| Sep 14, 6:59 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 46 min |
| Sep 14, 7:12 PM CDT | Flash Flood Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, O'Brien | 4 hr |
| Sep 14, 7:16 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 44 min |
| Sep 14, 7:17 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 32 more | 118 min |
| Sep 14, 7:41 PM CDT | Flash Flood Warning | DMX | Kossuth | 4 hr |
| Sep 14, 8:16 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Mitchell, Winneshiek | 3 hr |
| Sep 14, 8:35 PM CDT | Flash Flood Warning | DMX | Emmet, Palo Alto | 5 hr |
| Sep 14, 9:26 PM CDT | Flash Flood Warning | DMX | Winnebago | 6 hr |
| Sep 14, 10:59 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Winnebago | 46 min |
| Sep 15, 3:20 AM CDT | Flash Flood Warning | FSD | Lyon | 3 hr |
| Sep 15, 4:00 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 37 more | 3 hr |
| Sep 15, 4:06 AM CDT | Flash Flood Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 114 min |
| Sep 15, 4:35 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 25 min |
| Sep 15, 5:26 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 34 min |
| Sep 15, 5:43 AM CDT | Flash Flood Warning | DMX | Emmet, Palo Alto | 6 hr |
| Sep 15, 7:01 AM CDT | Flash Flood Warning | FSD | Clay, Dickinson, O'Brien | 119 min |
| Sep 15, 12:25 PM CDT | Tornado Watch | SPC | Allamakee, Bremer, Butler, Chickasaw, Clayton, Fayette and 4 more | 8 hr |
| Sep 17, 8:56 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 34 min |
| Sep 17, 1:12 PM CDT | Flash Flood Warning | FSD | Clay | 3 hr |
| Sep 17, 1:49 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 26 min |
| Sep 17, 3:02 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 43 min |
| Sep 17, 3:17 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 43 min |
| Sep 17, 3:44 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 46 min |
| Sep 17, 3:49 PM CDT | Flash Flood Warning | DMX | Palo Alto, Pocahontas | 6 hr |
| Sep 17, 4:14 PM CDT | Flash Flood Warning | FSD | Clay | 2 hr |
| Sep 17, 4:28 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 57 min |
| Sep 17, 5:08 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Webster | 52 min |
| Sep 17, 7:18 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 42 min |
| Sep 17, 7:39 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Ringgold, Taylor | 2 hr |
| Sep 18, 1:18 AM CDT | Mesoscale Discussion | SPC | Clarke, Decatur, Lucas, Ringgold, Taylor, Union and 1 more | 117 min |
| Sep 18, 1:20 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 40 min |
| Sep 18, 2:16 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 44 min |
| Sep 18, 2:29 AM CDT | Flash Flood Warning | DMX | Taylor | 6 hr |
| Sep 18, 2:40 AM CDT | Severe Thunderstorm Warning | DMX | Adams | 50 min |
| Sep 18, 3:11 AM CDT | Flash Flood Warning | DMX | Adams | 6 hr |
| Sep 18, 4:10 AM CDT | Severe Thunderstorm Warning | DMX | Adams | 50 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 | 33 |
| Tornado Warning | 22 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 13 |
| Flooding | |
| Flash Flood Warning | 13 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Story County15
- Hamilton County13
- Webster County13
- Greene County12
- Pocahontas County12
- Clay County12
- Crawford County12
- Palo Alto County12
- Boone County11
- Hardin County11
- Polk County11
- Buena Vista County11
- Monona County11
- Dallas County10
- Marshall County10
- Calhoun County10
- Dickinson County10
- Cherokee County10
- Harrison County10
- O'Brien County10
- Wright County9
- Audubon County9
- Carroll County9
- Guthrie County9
- Kossuth County9
- Sac County9
- Winnebago County9
- Adair County9
- Cass County9
- Ida County9
- Madison County9
- Montgomery County9
- Taylor County9
- Franklin County8
- Humboldt County8
- Warren County8
- Hancock County8
- Shelby County8
- Mills County8
- Osceola County8
46 more counties
- Jasper County7
- Lucas County7
- Cerro Gordo County7
- Emmet County7
- Worth County7
- Adams County7
- Fremont County7
- Pottawattamie County7
- Plymouth County7
- Woodbury County7
- Lyon County7
- Ringgold County6
- Union County6
- Marion County5
- Monroe County5
- Clarke County5
- Decatur County5
- Page County5
- Wayne County5
- Sioux County5
- Appanoose County4
- Butler County3
- Grundy County3
- Tama County3
- Mitchell County3
- Benton County2
- Black Hawk County2
- Buchanan County2
- Mahaska County2
- Poweshiek County2
- Floyd County2
- Allamakee County2
- Chickasaw County2
- Howard County2
- Winneshiek County2
- Cedar County1
- Iowa County1
- Jefferson County1
- Johnson County1
- Keokuk County1
- Linn County1
- Wapello County1
- Washington County1
- Bremer County1
- Clayton County1
- Fayette County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.