Alert archive / Iowa / 2018
Weather alerts in Iowa, March 2018
94 weather alerts in March 2018, 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 March 2018. Tap one for its archive.
- Alerts
- 94
- Warnings
- 31
- Watches
- 4
- Advisories
- 31
- Busiest day
- March 5, 201812 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 |
|---|---|---|---|---|
| Mar 3, 2:18 PM CST | Winter Storm Watch | ARX | Allamakee, Howard, Winneshiek | 25 hr |
| Mar 4, 4:09 AM CST | Blizzard Warning | FSD | Plymouth, Sioux | 59 hr |
| Mar 4, 11:09 AM CST | River Flood Warning | DMX | Webster | 33 hr |
| Mar 4, 2:24 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 52 hr |
| Mar 4, 2:25 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 49 hr |
| Mar 4, 3:15 PM CST | Winter Storm Warning | ARX | Allamakee, Howard, Winneshiek | 36 hr |
| Mar 4, 3:15 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 42 hr |
| Mar 4, 3:32 PM CST | Winter Weather Advisory | DVN | Buchanan, Delaware, Dubuque, Jackson | 32 hr |
| Mar 4, 3:35 PM CST | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 21 more | 50 hr |
| Mar 5, 12:59 AM CST | Special Weather Statement | DVN | Van Buren | 61 min |
| Mar 5, 1:48 AM CST | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Delaware, Des Moines, Henry and 11 more | 87 min |
| Mar 5, 3:16 AM CST | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 14 more | 89 min |
| Mar 5, 4:16 AM CST | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 12 more | 89 min |
| Mar 5, 4:56 AM CST | River Flood Warning | FSD | Clay, Dickinson | 34 hr |
| Mar 5, 5:48 AM CST | Special Weather Statement | DVN | Cedar, Clinton, Delaware, Des Moines, Dubuque, Jackson and 6 more | 87 min |
| Mar 5, 6:50 AM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Delaware, Dubuque, Jackson, Jones and 2 more | 17 hr |
| Mar 5, 7:10 AM CST | Special Weather Statement | DVN | Clinton, Delaware, Dubuque, Jackson, Jones, Scott | 95 min |
| Mar 5, 7:15 AM CST | Special Weather Statement | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 3 more | 90 min |
| Mar 5, 1:15 PM CST | River Flood Warning | FSD | Clay | 4 days |
| Mar 5, 1:17 PM CST | Mesoscale Discussion | SPC | Allamakee, Clayton, Fayette, Howard, Winneshiek | 4 hr |
| Mar 5, 3:58 PM CST | Wind Advisory | OAX | Fremont, Mills, Montgomery, Page | 13 hr |
| Mar 5, 7:45 PM CST | River Flood Warning | FSD | Lyon | 36 hr |
| Mar 6, 4:40 AM CST | Special Weather Statement | DVN | Benton, Buchanan, Iowa, Johnson, Keokuk, Linn and 1 more | 80 min |
| Mar 6, 5:51 AM CST | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Delaware, Iowa, Johnson and 6 more | 84 min |
| Mar 6, 6:51 AM CST | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 114 min |
| Mar 6, 4:07 PM CST | River Flood Warning | FSD | Plymouth, Sioux | 61 hr |
| Mar 6, 6:10 PM CST | River Flood Warning | FSD | Clay | 30 hr |
| Mar 8, 8:47 AM CST | River Flood Warning | FSD | Plymouth | 45 hr |
| Mar 10, 3:29 AM CST | River Flood Warning | FSD | Clay, Dickinson | 24 hr |
| Mar 10, 8:54 AM CST | Winter Weather Advisory | FSD | Lyon, O'Brien, Osceola, Sioux | 3 hr |
| Mar 14, 10:42 AM CDT | Red Flag Warning | OAX | Fremont, Page | 8 hr |
| Mar 15, 3:48 AM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 45 hr |
| Mar 15, 8:38 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 56 hr |
| Mar 15, 8:38 AM CDT | River Flood Warning | FSD | Clay | 60 hr |
| Mar 15, 7:50 PM CDT | River Flood Warning | FSD | Clay | 39 hr |
| Mar 16, 3:10 AM CDT | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 32 hr |
| Mar 16, 4:10 AM CDT | Winter Weather Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 21 more | 30 hr |
| Mar 16, 5:10 PM CDT | Special Weather Statement | OAX | Pottawattamie | 35 min |
| Mar 16, 5:16 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Van Buren and 1 more | 59 min |
| Mar 16, 5:42 PM CDT | Special Weather Statement | OAX | Harrison, Pottawattamie | 33 min |
| Mar 16, 6:16 PM CDT | Special Weather Statement | OAX | Monona, Shelby | 29 min |
| Mar 16, 6:18 PM CDT | Special Weather Statement | DVN | Henry, Jefferson, Keokuk, Lee, Van Buren, Washington | 57 min |
| Mar 16, 7:35 PM CDT | Special Weather Statement | DVN | Benton, Des Moines, Henry, Iowa, Jefferson, Johnson and 6 more | 55 min |
| Mar 16, 8:29 PM CDT | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 11 more | 91 min |
| Mar 16, 8:47 PM CDT | Special Weather Statement | DMX | Dallas, Polk | 43 min |
| Mar 16, 9:33 PM CDT | Special Weather Statement | DVN | Buchanan, Cedar, Clinton, Delaware, Dubuque, Jackson and 4 more | 57 min |
| Mar 16, 9:37 PM CDT | Special Weather Statement | DVN | Henry, Jefferson, Lee, Van Buren | 53 min |
| Mar 16, 10:36 PM CDT | Special Weather Statement | DVN | Clinton, Dubuque, Jackson, Scott | 54 min |
| Mar 17, 11:14 AM CDT | Winter Weather Advisory | DVN | Des Moines, Louisa, Washington | 61 min |
| Mar 17, 9:58 PM CDT | River Flood Warning | FSD | Clay, Dickinson | 8 days |
| Mar 18, 2:12 AM CDT | Dense Fog Advisory | DMX | Davis, Jasper, Mahaska, Marion, Marshall, Monroe and 3 more | 8 hr |
| Mar 18, 2:25 AM CDT | Dense Fog Advisory | DVN | Benton, Cedar, Des Moines, Henry, Iowa, Jefferson and 9 more | 9 hr |
| Mar 19, 8:27 PM CDT | River Flood Warning | FSD | Buena Vista, Clay | 3 days |
| Mar 21, 8:55 AM CDT | River Flood Warning | FSD | Clay | 14 days |
| Mar 22, 3:23 AM CDT | Winter Storm Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 24 hr |
| Mar 22, 3:45 AM CDT | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 6 more | 24 hr |
| Mar 22, 3:48 AM CDT | Winter Storm Watch | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 4 more | 24 hr |
| Mar 22, 3:49 PM CDT | Winter Weather Advisory | FSD | Clay, Dickinson, Osceola | 45 hr |
| Mar 23, 3:30 AM CDT | Winter Storm Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 40 hr |
| Mar 23, 3:30 AM CDT | Winter Weather Advisory | DVN | Iowa, Johnson, Keokuk, Louisa, Muscatine, Washington | 40 hr |
| Mar 23, 3:31 AM CDT | Winter Storm Warning | FSD | Dickinson | 33 hr |
| Mar 23, 3:50 AM CDT | Winter Storm Warning | ARX | Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell and 1 more | 36 hr |
| Mar 23, 3:50 AM CDT | Winter Weather Advisory | ARX | Allamakee | 24 hr |
| Mar 23, 4:00 AM CDT | Winter Storm Warning | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 16 more | 39 hr |
| Mar 23, 4:00 AM CDT | Winter Weather Advisory | DMX | Boone, Calhoun, Greene, Hamilton, Hardin, Humboldt and 9 more | 39 hr |
| Mar 23, 9:37 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 13 days |
| Mar 23, 8:02 PM CDT | Mesoscale Discussion | SPC | Butler, Cerro Gordo, Dickinson, Emmet, Floyd, Franklin and 5 more | 6 hr |
| Mar 23, 9:27 PM CDT | Winter Storm Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 4 more | 22 hr |
| Mar 24, 3:58 AM CDT | Winter Weather Advisory | ARX | Clayton, Howard, Winneshiek | 12 hr |
| Mar 24, 5:40 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Jefferson | 80 min |
| Mar 24, 6:53 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Jefferson, Lee, Louisa, Van Buren | 67 min |
| Mar 24, 7:56 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Lee | 64 min |
| Mar 25, 9:44 AM CDT | River Flood Warning | FSD | Plymouth | 4 days |
| Mar 25, 3:28 PM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 2 more | 24 hr |
| Mar 25, 3:38 PM CDT | Winter Weather Advisory | DMX | Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas | 18 hr |
| Mar 26, 7:43 AM CDT | Special Weather Statement | OAX | Page | 47 min |
| Mar 27, 10:48 PM CDT | River Flood Warning | DMX | Emmet | 4 days |
| Mar 28, 2:48 AM CDT | Dense Fog Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell | 9 hr |
| Mar 28, 2:51 AM CDT | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 9 more | 9 hr |
| Mar 28, 4:23 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan | 6 hr |
| Mar 28, 9:04 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 7 days |
| Mar 29, 5:46 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 5 days |
| Mar 29, 8:26 AM CDT | River Flood Warning | FSD | Plymouth | 6 days |
| Mar 29, 8:26 AM CDT | River Flood Warning | FSD | Lyon | 41 hr |
| Mar 29, 8:26 AM CDT | River Flood Warning | FSD | Clay | 47 hr |
| Mar 30, 2:42 PM CDT | Wind Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 22 hr |
| Mar 30, 3:05 PM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 22 hr |
| Mar 30, 3:19 PM CDT | Wind Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 29 more | 25 hr |
| Mar 30, 3:27 PM CDT | Wind Advisory | OAX | Monona | 22 hr |
| Mar 31, 4:04 AM CDT | Winter Weather Advisory | OAX | Fremont, Page | 34 hr |
| Mar 31, 4:52 AM CDT | Special Weather Statement | DVN | Cedar, Clinton, Jackson, Johnson, Jones, Linn and 1 more | 38 min |
| Mar 31, 5:15 AM CDT | High Wind Warning | DVN | Cedar, Clinton, Dubuque, Jackson, Jones, Scott | 79 min |
| Mar 31, 6:13 AM CDT | Wind Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 10 hr |
| Mar 31, 3:34 PM CDT | Winter Weather Advisory | DMX | Decatur, Ringgold, Taylor | 24 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 | 2 |
| Special Weather Statement | 26 |
| Flooding | |
| River Flood Warning | 22 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 20 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clay County18
- Linn County18
- Cedar County17
- Jones County17
- Scott County17
- Delaware County16
- Dubuque County16
- Jackson County16
- Johnson County16
- Muscatine County16
- Washington County16
- Clinton County16
- Buchanan County15
- Benton County15
- Louisa County15
- Des Moines County14
- Henry County14
- Iowa County13
- Keokuk County13
- Dickinson County12
- Jefferson County11
- Lee County11
- Howard County9
- Plymouth County9
- Van Buren County9
- Winneshiek County8
- Sioux County8
- Allamakee County7
- Lyon County7
- Butler County7
- Cerro Gordo County7
- Emmet County7
- Franklin County7
- Hancock County7
- Webster County6
- Buena Vista County6
- Osceola County6
- Clayton County6
- Fayette County6
- Floyd County6
51 more counties
- Mitchell County6
- Black Hawk County6
- Bremer County6
- Grundy County6
- Hamilton County6
- Hardin County6
- Humboldt County6
- Kossuth County6
- Palo Alto County6
- Pocahontas County6
- Winnebago County6
- Worth County6
- Marshall County6
- Tama County6
- Page County5
- O'Brien County5
- Chickasaw County5
- Wright County5
- Poweshiek County5
- Story County5
- Fremont County4
- Cherokee County4
- Boone County4
- Calhoun County4
- Greene County4
- Jasper County4
- Monona County3
- Pottawattamie County3
- Ida County3
- Woodbury County3
- Carroll County3
- Crawford County3
- Sac County3
- Polk County3
- Mahaska County3
- Harrison County2
- Mills County2
- Montgomery County2
- Shelby County2
- Guthrie County2
- Dallas County2
- Marion County2
- Audubon County1
- Cass County1
- Davis County1
- Monroe County1
- Wapello County1
- Warren County1
- Decatur County1
- Ringgold County1
- Taylor County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.