Alert archive / Iowa / 2017
Weather alerts in Iowa, September 2017
61 weather alerts in September 2017, 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 2017. Tap one for its archive.
- Alerts
- 61
- Warnings
- 11
- Watches
- 0
- Advisories
- 8
- Busiest day
- September 21, 201715 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 3, 5:41 AM CDT | Dense Fog Advisory | DMX | Adams, Appanoose, Audubon, Cass, Clarke, Davis and 8 more | 3 hr |
| Sep 3, 5:44 AM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 4 hr |
| Sep 4, 6:28 PM CDT | Special Weather Statement | DMX | Winnebago, Worth | 62 min |
| Sep 4, 6:41 PM CDT | Special Weather Statement | ARX | Howard, Mitchell | 64 min |
| Sep 4, 7:16 PM CDT | Special Weather Statement | ARX | Chickasaw, Floyd, Mitchell | 59 min |
| Sep 15, 5:02 AM CDT | Special Weather Statement | DMX | Audubon | 58 min |
| Sep 15, 6:16 AM CDT | Special Weather Statement | DMX | Crawford | 59 min |
| Sep 16, 2:58 AM CDT | Special Weather Statement | OAX | Shelby | 32 min |
| Sep 16, 3:41 AM CDT | Special Weather Statement | OAX | Shelby | 34 min |
| Sep 16, 4:28 AM CDT | Special Weather Statement | DMX | Cerro Gordo, Hancock, Winnebago, Worth, Wright | 62 min |
| Sep 16, 5:00 AM CDT | Special Weather Statement | DMX | Audubon, Carroll | 60 min |
| Sep 16, 6:36 AM CDT | Special Weather Statement | DMX | Audubon, Carroll | 54 min |
| Sep 16, 10:10 AM CDT | Special Weather Statement | DMX | Hardin | 50 min |
| Sep 16, 4:17 PM CDT | Special Weather Statement | DMX | Tama | 43 min |
| Sep 16, 4:21 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 24 min |
| Sep 16, 4:41 PM CDT | Special Weather Statement | DVN | Benton | 34 min |
| Sep 16, 8:36 PM CDT | Special Weather Statement | OAX | Mills | 24 min |
| Sep 16, 8:46 PM CDT | Special Weather Statement | OAX | Pottawattamie | 44 min |
| Sep 16, 8:58 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 32 min |
| Sep 16, 9:16 PM CDT | Special Weather Statement | OAX | Shelby | 44 min |
| Sep 16, 10:05 PM CDT | Special Weather Statement | DMX | Audubon, Carroll | 55 min |
| Sep 16, 10:15 PM CDT | Special Weather Statement | OAX | Pottawattamie | 45 min |
| Sep 18, 9:56 PM CDT | Dense Fog Advisory | DMX | Appanoose, Black Hawk, Boone, Bremer, Butler, Cerro Gordo and 27 more | 12 hr |
| Sep 19, 12:50 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Des Moines, Henry and 13 more | 9 hr |
| Sep 19, 11:29 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 46 min |
| Sep 20, 3:17 PM CDT | Mesoscale Discussion | SPC | Allamakee, Buchanan, Clayton, Delaware, Dubuque, Fayette | 118 min |
| Sep 20, 5:10 PM CDT | Special Weather Statement | DVN | Dubuque | 35 min |
| Sep 20, 5:20 PM CDT | Special Weather Statement | DVN | Cedar | 25 min |
| Sep 20, 6:01 PM CDT | Special Weather Statement | DVN | Jackson | 29 min |
| Sep 20, 6:11 PM CDT | Special Weather Statement | DVN | Clinton, Jackson, Scott | 34 min |
| Sep 20, 6:49 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 41 min |
| Sep 20, 7:38 PM CDT | Special Weather Statement | DVN | Clinton, Scott | 67 min |
| Sep 20, 7:40 PM CDT | Special Weather Statement | DVN | Clinton, Scott | 65 min |
| Sep 20, 7:58 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 47 min |
| Sep 20, 8:37 PM CDT | Flash Flood Warning | DVN | Scott | 6 hr |
| Sep 20, 9:56 PM CDT | Special Weather Statement | DVN | Muscatine, Scott | 94 min |
| Sep 20, 10:47 PM CDT | Special Weather Statement | DVN | Scott | 43 min |
| Sep 20, 11:49 PM CDT | Special Weather Statement | DVN | Scott | 26 min |
| Sep 21, 12:30 AM CDT | Special Weather Statement | DVN | Muscatine | 45 min |
| Sep 21, 2:08 AM CDT | Flash Flood Warning | DVN | Muscatine, Scott | 6 hr |
| Sep 21, 3:03 AM CDT | Special Weather Statement | DMX | Wapello | 57 min |
| Sep 21, 3:40 AM CDT | Flash Flood Warning | DMX | Wapello | 6 hr |
| Sep 21, 3:45 AM CDT | Flash Flood Warning | DVN | Jefferson, Keokuk, Washington | 6 hr |
| Sep 21, 4:38 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 52 min |
| Sep 21, 8:49 AM CDT | Special Weather Statement | DVN | Clinton | 56 min |
| Sep 21, 9:30 AM CDT | Special Weather Statement | DVN | Lee | 75 min |
| Sep 22, 10:16 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 9 hr |
| Sep 22, 10:20 AM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 9 hr |
| Sep 22, 10:24 AM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 9 hr |
| Sep 22, 10:35 AM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 7 hr |
| Sep 22, 3:57 PM CDT | Mesoscale Discussion | SPC | Lyon, Sioux | 2 hr |
| Sep 24, 3:08 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 37 min |
| Sep 25, 2:01 PM CDT | Special Weather Statement | DMX | Dallas | 44 min |
| Sep 25, 2:12 PM CDT | Special Weather Statement | DMX | Guthrie | 48 min |
| Sep 25, 2:45 PM CDT | Special Weather Statement | DMX | Greene, Guthrie | 30 min |
| Sep 25, 3:06 PM CDT | Special Weather Statement | OAX | Montgomery | 39 min |
| Sep 25, 3:16 PM CDT | Special Weather Statement | DMX | Boone | 44 min |
| Sep 25, 4:53 PM CDT | Special Weather Statement | DMX | Cerro Gordo, Franklin | 67 min |
| Sep 25, 5:14 PM CDT | Special Weather Statement | DMX | Polk, Story | 61 min |
| Sep 25, 5:45 PM CDT | Special Weather Statement | ARX | Chickasaw, Floyd, Howard, Winneshiek | 45 min |
| Sep 25, 6:20 PM CDT | Special Weather Statement | DMX | Polk, Story | 85 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 | 7 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 40 |
| Flooding | |
| Flash Flood Warning | 4 |
| Heat | |
| Heat Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Scott County12
- Clinton County7
- Audubon County6
- Wapello County5
- Muscatine County5
- Pottawattamie County4
- Shelby County4
- Worth County4
- Cerro Gordo County4
- Carroll County4
- Tama County4
- Poweshiek County4
- Polk County4
- Story County4
- Jackson County4
- Lyon County4
- Appanoose County3
- Clarke County3
- Davis County3
- Decatur County3
- Lucas County3
- Monroe County3
- Ringgold County3
- Union County3
- Wayne County3
- Winnebago County3
- Howard County3
- Mitchell County3
- Chickasaw County3
- Floyd County3
- Hancock County3
- Wright County3
- Hardin County3
- Benton County3
- Boone County3
- Dallas County3
- Franklin County3
- Mahaska County3
- Buchanan County3
- Cedar County3
58 more counties
- Jefferson County3
- Keokuk County3
- Lee County3
- Washington County3
- Dubuque County3
- Guthrie County3
- Adams County2
- Cass County2
- Taylor County2
- Mills County2
- Montgomery County2
- Crawford County2
- Black Hawk County2
- Bremer County2
- Butler County2
- Grundy County2
- Hamilton County2
- Jasper County2
- Madison County2
- Marion County2
- Marshall County2
- Warren County2
- Des Moines County2
- Henry County2
- Iowa County2
- Johnson County2
- Jones County2
- Linn County2
- Louisa County2
- Van Buren County2
- Allamakee County2
- Clayton County2
- Delaware County2
- Fayette County2
- Greene County2
- Winneshiek County2
- Sioux County2
- Fremont County1
- Harrison County1
- Page County1
- Adair County1
- Calhoun County1
- Emmet County1
- Humboldt County1
- Kossuth County1
- Palo Alto County1
- Pocahontas County1
- Sac County1
- Webster County1
- Buena Vista County1
- Cherokee County1
- Clay County1
- Dickinson County1
- Ida County1
- O'Brien County1
- Osceola County1
- Plymouth County1
- Woodbury County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.