Alert archive / Iowa / 2020
Weather alerts in Iowa, November 2020
44 weather alerts in November 2020, 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 2020. Tap one for its archive.
- Alerts
- 44
- Warnings
- 10
- Watches
- 3
- Advisories
- 25
- Busiest day
- November 10, 202018 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 |
|---|---|---|---|---|
| Oct 31, 11:48 PM CDT | Wind Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 15 hr |
| Oct 31, 11:51 PM CDT | Wind Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 12 more | 7 hr |
| Nov 1, 12:46 AM CDT | Wind Advisory | DVN | Buchanan, Delaware, Dubuque | 14 hr |
| Nov 6, 2:59 AM CST | Red Flag Warning | FSD | Lyon, Osceola, Plymouth, Sioux | 15 hr |
| Nov 7, 1:10 PM CST | Wind Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell | 29 hr |
| Nov 7, 1:49 PM CST | Wind Advisory | DMX | Audubon, Calhoun, Carroll, Cerro Gordo, Crawford, Emmet and 13 more | 28 hr |
| Nov 7, 2:33 PM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 27 hr |
| Nov 7, 2:39 PM CST | Wind Advisory | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 27 hr |
| Nov 9, 3:15 PM CST | Winter Weather Advisory | OAX | Harrison, Monona, Pottawattamie, Shelby | 24 hr |
| Nov 9, 3:29 PM CST | Winter Storm Watch | FSD | Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux | 12 hr |
| Nov 9, 3:29 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Nov 9, 4:36 PM CST | Winter Weather Advisory | DMX | Audubon, Calhoun, Carroll, Cerro Gordo, Crawford, Emmet and 13 more | 25 hr |
| Nov 9, 8:47 PM CST | Winter Weather Advisory | ARX | Mitchell | 21 hr |
| Nov 9, 11:50 PM CST | Ice Storm Warning | OAX | Monona | 15 hr |
| Nov 9, 11:50 PM CST | Winter Weather Advisory | OAX | Monona | 3 hr |
| Nov 10, 2:41 AM CST | Wind Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Jackson, Lee and 4 more | 17 hr |
| Nov 10, 8:52 AM CST | Mesoscale Discussion | SPC | Lee | 113 min |
| Nov 10, 9:19 AM CST | Mesoscale Discussion | SPC | Emmet, Winnebago | 5 hr |
| Nov 10, 9:42 AM CST | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 6 hr |
| Nov 10, 11:22 AM CST | Severe Thunderstorm Watch | SPC | Clinton, Des Moines, Henry, Jackson, Lee, Louisa and 2 more | 7 hr |
| Nov 10, 12:01 PM CST | Winter Storm Warning | FSD | Lyon | 9 hr |
| Nov 10, 12:45 PM CST | Severe Thunderstorm Warning | DVN | Lee | 45 min |
| Nov 10, 1:04 PM CST | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 41 min |
| Nov 10, 1:28 PM CST | Severe Thunderstorm Warning | DVN | Des Moines, Lee, Louisa | 47 min |
| Nov 10, 1:29 PM CST | Severe Thunderstorm Warning | DVN | Lee | 46 min |
| Nov 10, 1:48 PM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Jones and 4 more | 87 min |
| Nov 10, 2:05 PM CST | Tornado Watch | SPC | Clinton, Jackson, Scott | 6 hr |
| Nov 10, 2:07 PM CST | Severe Thunderstorm Warning | DVN | Scott | 38 min |
| Nov 10, 2:38 PM CST | Severe Thunderstorm Warning | DVN | Clinton | 52 min |
| Nov 10, 3:51 PM CST | Mesoscale Discussion | SPC | Lyon, Osceola | 6 hr |
| Nov 11, 12:47 AM CST | Dense Fog Advisory | FSD | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux | 6 hr |
| Nov 14, 3:14 AM CST | Wind Advisory | DMX | Adair, Adams, Appanoose, Black Hawk, Boone, Bremer and 41 more | 36 hr |
| Nov 14, 3:35 AM CST | Wind Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 38 hr |
| Nov 14, 11:30 AM CST | Wind Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 17 hr |
| Nov 14, 2:06 PM CST | Wind Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 28 hr |
| Nov 14, 2:27 PM CST | Wind Advisory | FSD | Buena Vista, Clay, Dickinson, O'Brien, Osceola | 25 hr |
| Nov 14, 7:27 PM CST | Special Weather Statement | DVN | Henry, Lee, Van Buren | 48 min |
| Nov 18, 3:22 AM CST | Red Flag Warning | OAX | Fremont | 15 hr |
| Nov 23, 2:04 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Clinton, Delaware, Dubuque, Jackson and 2 more | 19 hr |
| Nov 23, 2:19 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Nov 23, 3:02 PM CST | Winter Weather Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 3 more | 17 hr |
| Nov 24, 7:49 PM CST | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 12 hr |
| Nov 24, 8:58 PM CST | Dense Fog Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Cerro Gordo, Clarke and 19 more | 6 hr |
| Nov 24, 9:16 PM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Delaware, Dubuque, Iowa, Jackson and 3 more | 11 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 Warning | 6 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 1 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 8 |
| Wind and dust | |
| Wind Advisory | 13 |
| Fire | |
| Red Flag Warning | 2 |
| 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.
- Lee County10
- Lyon County8
- Osceola County8
- Clinton County7
- Jackson County7
- Mitchell County6
- Cerro Gordo County6
- Franklin County6
- Worth County6
- Plymouth County6
- Sioux County6
- O'Brien County6
- Des Moines County6
- Henry County6
- Scott County6
- Chickasaw County5
- Floyd County5
- Howard County5
- Emmet County5
- Winnebago County5
- Louisa County5
- Allamakee County4
- Clayton County4
- Fayette County4
- Winneshiek County4
- Black Hawk County4
- Bremer County4
- Butler County4
- Grundy County4
- Hamilton County4
- Hancock County4
- Hardin County4
- Humboldt County4
- Kossuth County4
- Palo Alto County4
- Pocahontas County4
- Webster County4
- Wright County4
- Buchanan County4
- Delaware County4
59 more counties
- Dubuque County4
- Dickinson County4
- Monona County4
- Muscatine County4
- Jones County4
- Calhoun County3
- Greene County3
- Buena Vista County3
- Cherokee County3
- Clay County3
- Pottawattamie County3
- Cedar County3
- Van Buren County3
- Tama County3
- Benton County3
- Linn County3
- Audubon County2
- Carroll County2
- Crawford County2
- Sac County2
- Ida County2
- Woodbury County2
- Harrison County2
- Mills County2
- Shelby County2
- Boone County2
- Clarke County2
- Dallas County2
- Decatur County2
- Jasper County2
- Lucas County2
- Madison County2
- Marion County2
- Marshall County2
- Polk County2
- Poweshiek County2
- Ringgold County2
- Story County2
- Union County2
- Warren County2
- Wayne County2
- Iowa County2
- Johnson County2
- Fremont County2
- Adair County1
- Adams County1
- Appanoose County1
- Cass County1
- Davis County1
- Guthrie County1
- Mahaska County1
- Monroe County1
- Taylor County1
- Wapello County1
- Jefferson County1
- Keokuk County1
- Washington County1
- Montgomery County1
- Page County1
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.