Alert archive / Iowa / 2007
Weather alerts in Iowa, September 2007
111 weather alerts in September 2007, 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 2007. Tap one for its archive.
- Alerts
- 111
- Warnings
- 77
- Watches
- 7
- Advisories
- 12
- Busiest day
- September 30, 200740 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, 5:59 PM CDT | Mesoscale Discussion | SPC | Cherokee, Fremont, Harrison, Mills, Monona, Plymouth and 3 more | 91 min |
| Sep 6, 6:05 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 25 min |
| Sep 6, 6:19 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 7 hr |
| Sep 6, 7:15 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 30 min |
| Sep 6, 7:36 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 39 min |
| Sep 6, 9:30 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 90 min |
| Sep 6, 9:39 PM CDT | Flash Flood Watch | OAX | Fremont, Mills, Montgomery, Page | 6 hr |
| Sep 7, 12:18 AM CDT | Severe Thunderstorm Warning | DMX | Dallas | 27 min |
| Sep 7, 1:10 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 27 min |
| Sep 7, 11:40 AM CDT | River Flood Advisory | DVN | Iowa, Johnson | 11 hr |
| Sep 7, 7:19 PM CDT | River Flood Warning | DVN | Iowa, Johnson | 25 hr |
| Sep 13, 5:24 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 36 min |
| Sep 13, 5:54 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 36 min |
| Sep 14, 3:30 AM CDT | Frost Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 41 more | 31 hr |
| Sep 14, 3:33 AM CDT | Frost Advisory | DVN | Des Moines, Henry, Iowa, Jefferson, Johnson, Keokuk and 6 more | 29 hr |
| Sep 14, 3:33 AM CDT | Freeze Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 29 hr |
| Sep 14, 3:40 AM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 27 hr |
| Sep 14, 3:45 AM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 11 hr |
| Sep 14, 2:43 PM CDT | Freeze Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 18 hr |
| Sep 14, 2:43 PM CDT | Freeze Warning | DMX | Black Hawk, Boone, Bremer, Butler, Cerro Gordo, Emmet and 18 more | 19 hr |
| Sep 14, 3:43 PM CDT | Frost Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 17 hr |
| Sep 17, 6:03 PM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Plymouth, Sioux | 87 min |
| Sep 17, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 5 hr |
| Sep 17, 10:03 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 57 min |
| Sep 18, 3:43 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Cedar, Clarke, Davis, Decatur and 20 more | 2 hr |
| Sep 18, 4:47 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Wayne | 43 min |
| Sep 18, 5:06 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion | 39 min |
| Sep 18, 5:21 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Monroe | 54 min |
| Sep 18, 5:27 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 48 min |
| Sep 18, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 41 min |
| Sep 18, 6:01 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 44 min |
| Sep 18, 6:25 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 35 min |
| Sep 18, 6:31 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 38 min |
| Sep 18, 6:36 PM CDT | Severe Thunderstorm Warning | DVN | Linn | 39 min |
| Sep 18, 6:44 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 42 min |
| Sep 18, 6:46 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 44 min |
| Sep 18, 6:52 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 38 min |
| Sep 18, 7:23 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 42 min |
| Sep 18, 7:25 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 50 min |
| Sep 18, 7:29 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 9 min |
| Sep 18, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 50 min |
| Sep 18, 8:04 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 41 min |
| Sep 18, 8:11 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 49 min |
| Sep 18, 8:20 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 40 min |
| Sep 18, 8:42 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 48 min |
| Sep 18, 8:56 PM CDT | Severe Thunderstorm Warning | DMX | Story | 38 min |
| Sep 20, 8:40 PM CDT | Mesoscale Discussion | SPC | Lyon | 95 min |
| Sep 21, 3:24 AM CDT | Wind Advisory | FSD | Lyon | 11 hr |
| Sep 21, 3:17 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 24 more | 88 min |
| Sep 21, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allamakee, Benton, Black Hawk, Boone, Bremer and 26 more | 4 hr |
| Sep 21, 5:19 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Warren | 26 min |
| Sep 21, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 34 min |
| Sep 21, 5:26 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 64 min |
| Sep 21, 5:38 PM CDT | Severe Thunderstorm Warning | DVN | Benton | 67 min |
| Sep 21, 5:43 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 47 min |
| Sep 21, 5:45 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 45 min |
| Sep 21, 6:10 PM CDT | Severe Thunderstorm Warning | DVN | Linn | 53 min |
| Sep 21, 6:17 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Delaware, Des Moines, Dubuque and 16 more | 88 min |
| Sep 23, 3:21 AM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 16 hr |
| Sep 24, 3:54 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cass and 32 more | 2 hr |
| Sep 24, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | Bremer, Butler, Cerro Gordo, Chickasaw, Emmet, Floyd and 11 more | 5 hr |
| Sep 24, 6:18 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 27 min |
| Sep 24, 6:47 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 28 min |
| Sep 24, 6:50 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 40 min |
| Sep 24, 7:48 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie, Shelby | 2 hr |
| Sep 25, 10:41 AM CDT | Severe Thunderstorm Warning | DMX | Wayne | 22 min |
| Sep 26, 1:41 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 3 more | 64 min |
| Sep 29, 1:36 AM CDT | High Wind Warning | FSD | Lyon | 77 min |
| Sep 29, 3:42 AM CDT | Wind Advisory | DMX | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 17 more | 15 hr |
| Sep 29, 3:59 AM CDT | Wind Advisory | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 15 hr |
| Sep 29, 4:10 AM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 15 hr |
| Sep 30, 4:07 AM CDT | Wind Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 14 hr |
| Sep 30, 10:13 AM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Cass, Cerro Gordo and 19 more | 2 hr |
| Sep 30, 12:10 PM CDT | Mesoscale Discussion | SPC | Adams, Fremont, Mills, Montgomery, Page, Ringgold and 1 more | 65 min |
| Sep 30, 1:02 PM CDT | Tornado Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 47 more | 7 hr |
| Sep 30, 2:26 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Iowa, Jasper and 16 more | 64 min |
| Sep 30, 3:36 PM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Lyon, Monona and 6 more | 54 min |
| Sep 30, 4:04 PM CDT | Tornado Warning | FSD | Sioux | 41 min |
| Sep 30, 4:29 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 31 min |
| Sep 30, 4:31 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 29 min |
| Sep 30, 4:36 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 39 min |
| Sep 30, 4:38 PM CDT | Severe Thunderstorm Warning | DMX | Union | 27 min |
| Sep 30, 4:41 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 40 min |
| Sep 30, 4:43 PM CDT | High Wind Warning | DMX | Adair, Adams, Audubon, Carroll, Cass, Clarke and 8 more | 3 hr |
| Sep 30, 4:44 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 31 min |
| Sep 30, 4:49 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Warren | 56 min |
| Sep 30, 5:09 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 36 min |
| Sep 30, 5:12 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 33 min |
| Sep 30, 5:21 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas | 24 min |
| Sep 30, 5:23 PM CDT | Tornado Warning | DMX | Clarke, Lucas | 24 min |
| Sep 30, 5:25 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 50 min |
| Sep 30, 5:30 PM CDT | Tornado Warning | FSD | Plymouth | 30 min |
| Sep 30, 5:32 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 28 min |
| Sep 30, 5:33 PM CDT | Tornado Warning | DMX | Marion, Warren | 42 min |
| Sep 30, 5:42 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 48 min |
| Sep 30, 5:45 PM CDT | Mesoscale Discussion | SPC | Adair, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 26 more | 60 min |
| Sep 30, 5:52 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 38 min |
| Sep 30, 5:54 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 36 min |
| Sep 30, 5:59 PM CDT | Tornado Warning | FSD | Ida | 8 min |
| Sep 30, 6:03 PM CDT | Severe Thunderstorm Warning | DMX | Jasper | 57 min |
| Sep 30, 6:03 PM CDT | Tornado Warning | DMX | Sac | 15 min |
| Sep 30, 6:17 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 43 min |
| Sep 30, 6:18 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Poweshiek | 42 min |
| Sep 30, 6:20 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 25 min |
| Sep 30, 6:21 PM CDT | Tornado Warning | DMX | Calhoun, Pocahontas, Sac | 24 min |
| Sep 30, 6:21 PM CDT | Tornado Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 39 min |
| Sep 30, 6:26 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 16 min |
| Sep 30, 6:37 PM CDT | Tornado Warning | DMX | Poweshiek | 38 min |
| Sep 30, 6:47 PM CDT | Tornado Warning | DMX | Calhoun, Pocahontas | 15 min |
| Sep 30, 6:54 PM CDT | Tornado Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 26 min |
| Sep 30, 6:59 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 46 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 | 60 |
| Tornado Warning | 11 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 15 |
| Flooding | |
| River Flood Warning | 1 |
| Flash Flood Watch | 1 |
| River Flood Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 6 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Plymouth County17
- Sioux County14
- Marion County14
- Cherokee County13
- Jasper County13
- Poweshiek County13
- Lyon County13
- Mahaska County12
- Mills County11
- Monona County11
- Woodbury County11
- Pocahontas County11
- Harrison County10
- Shelby County10
- Iowa County10
- Sac County10
- Warren County10
- Buena Vista County10
- O'Brien County10
- Fremont County9
- Pottawattamie County9
- Dallas County9
- Boone County9
- Calhoun County9
- Clarke County9
- Lucas County9
- Clay County9
- Ida County9
- Osceola County9
- Montgomery County8
- Page County8
- Greene County8
- Guthrie County8
- Humboldt County8
- Madison County8
- Tama County8
- Dickinson County8
- Johnson County7
- Audubon County7
- Carroll County7
59 more counties
- Cerro Gordo County7
- Crawford County7
- Emmet County7
- Hamilton County7
- Hancock County7
- Kossuth County7
- Palo Alto County7
- Story County7
- Webster County7
- Winnebago County7
- Worth County7
- Wright County7
- Benton County7
- Linn County7
- Clayton County7
- Marshall County6
- Adair County6
- Cass County6
- Monroe County6
- Polk County6
- Union County6
- Allamakee County6
- Floyd County6
- Wayne County6
- Ringgold County6
- Black Hawk County5
- Bremer County5
- Butler County5
- Franklin County5
- Hardin County5
- Keokuk County5
- Buchanan County5
- Delaware County5
- Chickasaw County5
- Fayette County5
- Howard County5
- Mitchell County5
- Decatur County5
- Adams County4
- Appanoose County4
- Grundy County4
- Wapello County4
- Dubuque County4
- Winneshiek County4
- Davis County3
- Henry County3
- Jefferson County3
- Louisa County3
- Muscatine County3
- Washington County3
- Cedar County3
- Jones County3
- Taylor County3
- Des Moines County2
- Scott County2
- Van Buren County2
- Clinton County2
- Jackson County2
- Lee County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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. Warning verification from the Mesonet's Cow. Rebuilt daily.