Alert archive / Iowa / 2021
Weather alerts in Iowa, February 2021
87 weather alerts in February 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 February 2021. Tap one for its archive.
- Alerts
- 87
- Warnings
- 14
- Watches
- 6
- Advisories
- 63
- Busiest day
- February 3, 202110 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 |
|---|---|---|---|---|
| Jan 31, 9:34 PM CST | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Pottawattamie and 1 more | 38 hr |
| Feb 1, 11:39 PM CST | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 11 hr |
| Feb 2, 1:36 AM CST | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Boone, Butler and 32 more | 9 hr |
| Feb 2, 2:29 PM CST | Winter Storm Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 23 hr |
| Feb 2, 8:51 PM CST | Dense Fog Advisory | DMX | Adair, Appanoose, Black Hawk, Boone, Bremer, Butler and 37 more | 12 hr |
| Feb 3, 1:04 AM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 10 hr |
| Feb 3, 3:12 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 33 hr |
| Feb 3, 3:15 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 33 hr |
| Feb 3, 3:35 AM CST | Blizzard Warning | DMX | Black Hawk, Bremer, Butler, Calhoun, Cerro Gordo, Emmet and 19 more | 41 hr |
| Feb 3, 3:35 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 48 hr |
| Feb 3, 4:01 AM CST | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 11 hr |
| Feb 3, 4:01 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 56 hr |
| Feb 3, 1:53 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 34 hr |
| Feb 3, 2:56 PM CST | Winter Storm Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 36 hr |
| Feb 4, 3:30 AM CST | Special Weather Statement | OAX | Harrison, Monona | 30 min |
| Feb 4, 3:53 AM CST | Winter Storm Warning | ARX | Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell | 20 hr |
| Feb 4, 5:30 AM CST | Special Weather Statement | OAX | Mills, Pottawattamie, Shelby | 75 min |
| Feb 4, 6:45 AM CST | Special Weather Statement | OAX | Mills, Montgomery | 30 min |
| Feb 5, 3:26 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie | 36 hr |
| Feb 5, 3:44 AM CST | Wind Chill Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 3 days |
| Feb 5, 1:38 PM CST | Winter Weather Advisory | DVN | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 29 hr |
| Feb 5, 2:42 PM CST | Wind Chill Advisory | DMX | Appanoose, Black Hawk, Boone, Bremer, Butler, Calhoun and 36 more | 45 hr |
| Feb 5, 2:42 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more | 27 hr |
| Feb 6, 12:51 AM CST | Wind Chill Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 9 hr |
| Feb 6, 3:03 AM CST | Wind Chill Advisory | FSD | Buena Vista, Clay, Dickinson, O'Brien, Osceola | 33 hr |
| Feb 6, 3:42 AM CST | Wind Chill Advisory | ARX | Allamakee | 32 hr |
| Feb 6, 3:47 AM CST | Wind Chill Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 32 hr |
| Feb 6, 3:47 AM CST | Wind Chill Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 32 hr |
| Feb 6, 3:49 AM CST | Wind Chill Advisory | DMX | Black Hawk, Grundy, Tama | 10 hr |
| Feb 6, 1:43 PM CST | Wind Chill Warning | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 10 more | 22 hr |
| Feb 6, 3:14 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 37 hr |
| Feb 7, 3:02 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Cass, Decatur, Ringgold, Taylor and 1 more | 12 hr |
| Feb 8, 5:35 AM CST | Wind Chill Advisory | OAX | Harrison, Monona, Pottawattamie, Shelby | 4 hr |
| Feb 8, 11:03 AM CST | Winter Weather Advisory | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 9 more | 12 hr |
| Feb 8, 1:34 PM CST | Wind Chill Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 20 hr |
| Feb 8, 2:22 PM CST | Wind Chill Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 19 hr |
| Feb 8, 2:31 PM CST | Wind Chill Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 18 hr |
| Feb 8, 2:48 PM CST | Wind Chill Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 19 hr |
| Feb 8, 3:32 PM CST | Wind Chill Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 18 hr |
| Feb 9, 2:28 AM CST | Wind Chill Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 9 more | 8 hr |
| Feb 10, 2:30 PM CST | Wind Chill Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 20 hr |
| Feb 10, 2:31 PM CST | Wind Chill Advisory | FSD | Dickinson, Osceola | 18 hr |
| Feb 10, 2:44 PM CST | Wind Chill Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 24 more | 19 hr |
| Feb 10, 2:52 PM CST | Wind Chill Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 19 hr |
| Feb 11, 2:16 PM CST | Wind Chill Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 22 hr |
| Feb 11, 2:16 PM CST | Winter Weather Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 40 hr |
| Feb 11, 2:20 PM CST | Wind Chill Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 46 hr |
| Feb 11, 2:45 PM CST | Wind Chill Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 21 hr |
| Feb 11, 2:56 PM CST | Wind Chill Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 45 hr |
| Feb 11, 5:07 PM CST | Wind Chill Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 43 hr |
| Feb 12, 3:25 AM CST | Wind Chill Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 33 hr |
| Feb 12, 4:04 AM CST | Wind Chill Advisory | DMX | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 31 more | 32 hr |
| Feb 12, 2:09 PM CST | Wind Chill Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 61 hr |
| Feb 12, 2:09 PM CST | Wind Chill Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 22 hr |
| Feb 12, 2:13 PM CST | Wind Chill Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 37 hr |
| Feb 12, 2:59 PM CST | Wind Chill Watch | DMX | Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 26 more | 13 hr |
| Feb 13, 3:15 AM CST | Wind Chill Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 57 hr |
| Feb 13, 3:28 AM CST | Wind Chill Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 39 hr |
| Feb 13, 3:35 AM CST | Wind Chill Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 3 days |
| Feb 13, 3:35 AM CST | Wind Chill Advisory | FSD | Plymouth, Woodbury | 30 hr |
| Feb 13, 3:37 AM CST | Wind Chill Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 56 hr |
| Feb 13, 3:52 AM CST | Wind Chill Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 3 days |
| Feb 14, 2:38 AM CST | Wind Chill Advisory | ARX | Allamakee, Clayton | 33 hr |
| Feb 14, 3:13 AM CST | Wind Chill Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 56 hr |
| Feb 14, 1:43 PM CST | Winter Weather Advisory | DVN | Des Moines, Henry, Lee, Louisa, Muscatine, Scott | 40 hr |
| Feb 15, 11:53 AM CST | Wind Chill Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 22 hr |
| Feb 15, 12:10 PM CST | Wind Chill Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 14 more | 22 hr |
| Feb 19, 10:01 PM CST | Dense Fog Advisory | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 14 hr |
| Feb 20, 3:29 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more | 36 hr |
| Feb 20, 3:32 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 40 hr |
| Feb 20, 2:09 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 32 hr |
| Feb 20, 2:35 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 13 more | 30 hr |
| Feb 20, 3:09 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 24 hr |
| Feb 21, 8:42 AM CST | Winter Storm Warning | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 7 hr |
| Feb 21, 8:52 AM CST | Mesoscale Discussion | SPC | Adair, Audubon, Benton, Black Hawk, Boone, Buchanan and 26 more | 4 hr |
| Feb 21, 9:16 AM CST | Winter Storm Warning | DMX | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 5 more | 9 hr |
| Feb 21, 11:24 AM CST | Winter Storm Warning | FSD | Ida, Woodbury | 4 hr |
| Feb 21, 8:24 PM CST | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 4 more | 7 hr |
| Feb 22, 12:47 AM CST | Dense Fog Advisory | DMX | Audubon, Calhoun, Carroll, Cass, Crawford, Emmet and 11 more | 5 hr |
| Feb 25, 10:11 PM CST | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 9 hr |
| Feb 26, 1:09 AM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler | 4 hr |
| Feb 26, 1:19 AM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more | 4 hr |
| Feb 27, 3:30 AM CST | Winter Weather Advisory | DMX | Emmet | 30 hr |
| Feb 27, 3:52 AM CST | Winter Storm Watch | FSD | Lyon | 11 hr |
| Feb 27, 3:52 AM CST | Winter Weather Advisory | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 1 more | 29 hr |
| Feb 28, 6:13 AM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 6 hr |
| Feb 28, 6:49 AM CST | Dense Fog Advisory | ARX | Allamakee, Clayton, Fayette, Winneshiek | 5 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 | 3 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 20 |
| Cold | |
| Wind Chill Warning | 8 |
| Wind Chill Watch | 3 |
| Wind Chill Advisory | 30 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County17
- Benton County17
- Iowa County17
- Linn County17
- Muscatine County17
- Harrison County16
- Mills County16
- Buchanan County16
- Cedar County16
- Jackson County16
- Johnson County16
- Jones County16
- Scott County16
- Monona County15
- Shelby County15
- Calhoun County15
- Emmet County15
- Guthrie County15
- Clinton County15
- Delaware County15
- Dubuque County15
- Dallas County14
- Greene County14
- Grundy County14
- Kossuth County14
- Webster County14
- Black Hawk County14
- Montgomery County13
- Adair County13
- Boone County13
- Butler County13
- Carroll County13
- Cass County13
- Hamilton County13
- Hancock County13
- Hardin County13
- Humboldt County13
- Palo Alto County13
- Pocahontas County13
- Winnebago County13
59 more counties
- Wright County13
- Allamakee County13
- Clayton County13
- Tama County13
- Henry County13
- Jefferson County13
- Keokuk County13
- Washington County13
- Fremont County12
- Dickinson County12
- Osceola County12
- Audubon County12
- Cerro Gordo County12
- Franklin County12
- Sac County12
- Worth County12
- Fayette County12
- Bremer County12
- Jasper County12
- Marshall County12
- Poweshiek County12
- Story County12
- Des Moines County12
- Louisa County12
- Clay County11
- O'Brien County11
- Plymouth County11
- Crawford County11
- Madison County11
- Warren County11
- Chickasaw County11
- Floyd County11
- Howard County11
- Mitchell County11
- Winneshiek County11
- Polk County11
- Lee County11
- Van Buren County11
- Page County11
- Buena Vista County10
- Ida County10
- Lyon County10
- Sioux County10
- Woodbury County10
- Appanoose County10
- Clarke County10
- Decatur County10
- Lucas County10
- Monroe County10
- Union County10
- Wayne County10
- Marion County10
- Cherokee County9
- Adams County9
- Ringgold County9
- Davis County9
- Mahaska County9
- Wapello County9
- Taylor County8
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.