Alert archive / Iowa / Winter Storm Watches
Winter Storm Watches in Iowa, 2020
25 winter storm watches in 2020. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter storm watches reaches back to 2005.
Winter Storm Watches by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Winter Storm Watches
- 25
- Busiest month
- January6 winter storm watches
- Busiest day
- January 15, 20204 winter storm watches
Over time
By month
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 |
|---|---|---|---|---|
| Jan 9, 11:21 AM CST | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 16 hr |
| Jan 9, 2:15 PM CST | Winter Storm Watch | DMX | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 17 more | 14 hr |
| Jan 15, 2:44 PM CST | Winter Storm Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 37 hr |
| Jan 15, 3:10 PM CST | Winter Storm Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 13 hr |
| Jan 15, 3:25 PM CST | Winter Storm Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 21 hr |
| Jan 15, 3:43 PM CST | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 23 hr |
| Feb 7, 2:37 AM CST | Winter Storm Watch | ARX | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 25 hr |
| Feb 7, 3:08 AM CST | Winter Storm Watch | FSD | Dickinson | 24 hr |
| Feb 7, 3:25 AM CST | Winter Storm Watch | DMX | Cerro Gordo, Emmet, Hancock, Kossuth, Winnebago, Worth | 25 hr |
| Feb 23, 10:35 AM CST | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 28 hr |
| Feb 23, 2:05 PM CST | Winter Storm Watch | DMX | Appanoose, Black Hawk, Davis, Grundy, Jasper, Lucas and 11 more | 24 hr |
| Feb 23, 2:20 PM CST | Winter Storm Watch | ARX | Clayton | 13 hr |
| Apr 10, 3:09 PM CDT | Winter Storm Watch | ARX | Mitchell | 24 hr |
| Apr 10, 3:22 PM CDT | Winter Storm Watch | OAX | Harrison, Monona, Shelby | 24 hr |
| Apr 10, 3:32 PM CDT | Winter Storm Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more | 23 hr |
| Apr 10, 3:41 PM CDT | Winter Storm Watch | DMX | Calhoun, Cerro Gordo, Crawford, Emmet, Hancock, Humboldt and 6 more | 24 hr |
| Apr 15, 3:06 PM CDT | Winter Storm Watch | DMX | Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more | 6 hr |
| Apr 15, 3:13 PM CDT | Winter Storm Watch | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 11 hr |
| Nov 9, 3:29 PM CST | Winter Storm Watch | FSD | Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux | 12 hr |
| Dec 22, 3:54 AM CST | Winter Storm Watch | FSD | Lyon, O'Brien, Osceola, Sioux | 17 hr |
| Dec 27, 3:05 PM CST | Winter Storm Watch | OAX | Harrison, Mills, Monona, Montgomery, Pottawattamie, Shelby | 12 hr |
| Dec 27, 5:23 PM CST | Winter Storm Watch | DMX | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 31 more | 10 hr |
| Dec 27, 7:00 PM CST | Winter Storm Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 8 hr |
| Dec 28, 3:19 AM CST | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 14 more | 17 hr |
| Dec 28, 3:45 AM CST | Winter Storm Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 1 more | 11 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Des Moines County5
- Henry County5
- Jefferson County5
- Keokuk County5
- Louisa County5
- Van Buren County5
- Washington County5
- Warren County5
- Dickinson County5
- O'Brien County5
- Osceola County5
- Sioux County5
- Benton County4
- Buchanan County4
- Cedar County4
- Clinton County4
- Delaware County4
- Dubuque County4
- Iowa County4
- Jackson County4
- Johnson County4
- Jones County4
- Lee County4
- Linn County4
- Muscatine County4
- Scott County4
- Adair County4
- Adams County4
- Appanoose County4
- Cass County4
- Davis County4
- Jasper County4
- Lucas County4
- Madison County4
- Mahaska County4
- Marion County4
- Monroe County4
- Polk County4
- Tama County4
- Wapello County4
57 more counties
- Wayne County4
- Lyon County4
- Plymouth County4
- Cerro Gordo County4
- Emmet County4
- Hancock County4
- Kossuth County4
- Winnebago County4
- Worth County4
- Clarke County3
- Dallas County3
- Decatur County3
- Poweshiek County3
- Ringgold County3
- Taylor County3
- Union County3
- Buena Vista County3
- Cherokee County3
- Clay County3
- Ida County3
- Woodbury County3
- Black Hawk County3
- Calhoun County3
- Crawford County3
- Grundy County3
- Humboldt County3
- Marshall County3
- Palo Alto County3
- Pocahontas County3
- Sac County3
- Story County3
- Allamakee County3
- Chickasaw County3
- Clayton County3
- Floyd County3
- Howard County3
- Mitchell County3
- Winneshiek County3
- Audubon County2
- Boone County2
- Bremer County2
- Butler County2
- Carroll County2
- Franklin County2
- Greene County2
- Guthrie County2
- Hamilton County2
- Hardin County2
- Webster County2
- Wright County2
- Fayette County2
- Harrison County2
- Monona County2
- Shelby County2
- Mills County1
- Montgomery County1
- Pottawattamie County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.