Alert archive / Iowa / 2011
Weather alerts in Iowa, October 2011
27 weather alerts in October 2011, 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 October 2011. Tap one for its archive.
- Alerts
- 27
- Warnings
- 8
- Watches
- 4
- Advisories
- 10
- Busiest day
- October 11, 20115 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 30, 7:45 PM CDT | Frost Advisory | OAX | Harrison, Monona, Montgomery, Page, Pottawattamie, Shelby | 12 hr |
| Oct 1, 2:47 PM CDT | Frost Advisory | DVN | Cedar, Clinton, Delaware, Des Moines, Dubuque, Henry and 12 more | 17 hr |
| Oct 1, 3:00 PM CDT | Frost Advisory | ARX | Clayton | 18 hr |
| Oct 3, 2:14 PM CDT | Red Flag Warning | FSD | 3 days | |
| Oct 3, 3:32 PM CDT | Fire Weather Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 12 hr |
| Oct 4, 3:45 AM CDT | Fire Weather Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 24 hr |
| Oct 4, 3:45 AM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 15 hr |
| Oct 4, 3:13 PM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 3 days |
| Oct 5, 3:35 AM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 15 hr |
| Oct 6, 3:17 PM CDT | Fire Weather Watch | FSD | 13 hr | |
| Oct 7, 4:08 AM CDT | Wind Advisory | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 22 more | 15 hr |
| Oct 7, 11:07 AM CDT | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 6 hr |
| Oct 11, 2:28 AM CDT | Dense Fog Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie, Shelby | 6 hr |
| Oct 11, 3:06 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Audubon, Boone, Butler, Calhoun and 27 more | 7 hr |
| Oct 11, 8:37 AM CDT | Dense Fog Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie, Shelby | 83 min |
| Oct 11, 10:11 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Boone, Cerro Gordo, Clarke, Dallas and 21 more | 65 min |
| Oct 11, 3:43 PM CDT | Special Weather Statement | DVN | Des Moines | 62 min |
| Oct 12, 7:24 AM CDT | Special Weather Statement | DVN | Iowa, Jefferson, Keokuk, Van Buren, Washington | 51 min |
| Oct 12, 9:52 AM CDT | Special Weather Statement | DVN | Iowa, Jefferson, Keokuk, Van Buren, Washington | 2 hr |
| Oct 12, 3:51 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Lee | 54 min |
| Oct 18, 4:04 AM CDT | Freeze Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 11 hr |
| Oct 18, 3:07 PM CDT | Freeze Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 18 hr |
| Oct 18, 9:30 PM CDT | Freeze Warning | DMX | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 18 more | 11 hr |
| Oct 20, 3:20 AM CDT | Freeze Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 30 hr |
| Oct 20, 3:40 AM CDT | Freeze Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 29 hr |
| Oct 20, 3:42 AM CDT | Freeze Warning | DMX | Appanoose, Black Hawk, Boone, Bremer, Butler, Clarke and 19 more | 29 hr |
| Oct 25, 6:56 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee | 3 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 | |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 4 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 3 |
| 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.
- Montgomery County10
- Page County10
- Pottawattamie County10
- Shelby County10
- Fremont County9
- Mills County9
- Harrison County8
- Monona County8
- Des Moines County5
- Henry County4
- Jefferson County4
- Keokuk County4
- Lee County4
- Van Buren County4
- Washington County4
- Adair County4
- Adams County4
- Boone County4
- Dallas County4
- Greene County4
- Guthrie County4
- Hamilton County4
- Hancock County4
- Humboldt County4
- Madison County4
- Taylor County4
- Union County4
- Webster County4
- Wright County4
- Decatur County4
- Audubon County3
- Calhoun County3
- Carroll County3
- Cass County3
- Cerro Gordo County3
- Crawford County3
- Franklin County3
- Kossuth County3
- Sac County3
- Winnebago County3
59 more counties
- Clarke County3
- Hardin County3
- Lucas County3
- Polk County3
- Ringgold County3
- Story County3
- Warren County3
- Iowa County3
- Cedar County2
- Clinton County2
- Delaware County2
- Dubuque County2
- Jackson County2
- Johnson County2
- Jones County2
- Linn County2
- Louisa County2
- Muscatine County2
- Scott County2
- Clayton County2
- Emmet County2
- Palo Alto County2
- Pocahontas County2
- Worth County2
- Butler County2
- Grundy County2
- Wayne County2
- Buena Vista County1
- Cherokee County1
- Clay County1
- Dickinson County1
- Ida County1
- Lyon County1
- O'Brien County1
- Osceola County1
- Plymouth County1
- Sioux County1
- Woodbury County1
- Benton County1
- Buchanan County1
- Allamakee County1
- Chickasaw County1
- Fayette County1
- Floyd County1
- Howard County1
- Mitchell County1
- Winneshiek County1
- Appanoose County1
- Black Hawk County1
- Bremer County1
- Davis County1
- Jasper County1
- Mahaska County1
- Marion County1
- Marshall County1
- Monroe County1
- Poweshiek County1
- Tama County1
- Wapello County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.