Alert archive / Iowa / 2021
Weather alerts in Iowa, November 2021
16 weather alerts in November 2021, 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 November 2021. Tap one for its archive.
- Alerts
- 16
- Warnings
- 1
- Watches
- 1
- Advisories
- 12
- Busiest day
- November 10, 20214 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 |
|---|---|---|---|---|
| Nov 1, 2:14 PM CDT | Freeze Warning | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 19 hr |
| Nov 4, 4:23 AM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 10 hr |
| Nov 4, 9:24 PM CDT | Dense Fog Advisory | FSD | Lyon, Sioux | 5 hr |
| Nov 10, 1:55 PM CST | Severe Thunderstorm Watch | SPC | Adams, Decatur, Ringgold, Taylor, Union | 6 hr |
| Nov 10, 2:36 PM CST | Wind Advisory | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 51 hr |
| Nov 10, 2:54 PM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 51 hr |
| Nov 10, 3:46 PM CST | Mesoscale Discussion | SPC | Boone, Clarke, Dallas, Decatur, Jasper, Lucas and 8 more | 119 min |
| Nov 11, 2:50 AM CST | Winter Weather Advisory | DMX | Cerro Gordo, Emmet, Franklin, Hancock, Kossuth, Palo Alto and 3 more | 34 hr |
| Nov 11, 2:52 AM CST | Wind Advisory | DMX | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 19 more | 39 hr |
| Nov 11, 3:11 AM CST | Winter Weather Advisory | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 33 hr |
| Nov 11, 7:16 PM CST | Special Weather Statement | DVN | Cedar, Clinton, Dubuque, Jackson, Jones, Louisa and 3 more | 59 min |
| Nov 13, 5:00 PM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 10 hr |
| Nov 13, 5:42 PM CST | Wind Advisory | ARX | Chickasaw, Fayette, Floyd, Mitchell | 14 hr |
| Nov 13, 5:47 PM CST | Wind Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 25 more | 14 hr |
| Nov 14, 2:27 AM CST | Wind Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 7 hr |
| Nov 27, 8:16 AM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Dubuque, Iowa, Jackson, Johnson and 2 more | 2 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 Watch | 1 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 1 |
| Winter | |
| Winter Weather Advisory | 3 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lyon County5
- Sioux County5
- Clay County4
- Dickinson County4
- O'Brien County4
- Osceola County4
- Buena Vista County3
- Cherokee County3
- Plymouth County3
- Boone County3
- Dallas County3
- Polk County3
- Story County3
- Emmet County3
- Franklin County3
- Kossuth County3
- Palo Alto County3
- Wright County3
- Cedar County3
- Clinton County3
- Dubuque County3
- Jackson County3
- Jones County3
- Des Moines County2
- Henry County2
- Jefferson County2
- Ida County2
- Woodbury County2
- Decatur County2
- Ringgold County2
- Union County2
- Jasper County2
- Madison County2
- Warren County2
- Cerro Gordo County2
- Hancock County2
- Winnebago County2
- Worth County2
- Calhoun County2
- Carroll County2
47 more counties
- Crawford County2
- Greene County2
- Hamilton County2
- Hardin County2
- Humboldt County2
- Pocahontas County2
- Sac County2
- Webster County2
- Louisa County2
- Muscatine County2
- Scott County2
- Washington County2
- Iowa County2
- Johnson County2
- Linn County2
- Lee County1
- Van Buren County1
- Adams County1
- Taylor County1
- Harrison County1
- Mills County1
- Monona County1
- Pottawattamie County1
- Shelby County1
- Clarke County1
- Lucas County1
- Marion County1
- Wayne County1
- Adair County1
- Audubon County1
- Cass County1
- Guthrie County1
- Chickasaw County1
- Fayette County1
- Floyd County1
- Mitchell County1
- Black Hawk County1
- Bremer County1
- Butler County1
- Grundy County1
- Marshall County1
- Poweshiek County1
- Tama County1
- Benton County1
- Buchanan County1
- Delaware County1
- Keokuk County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.