Alert archive / Iowa / 2018
Weather alerts in Iowa, February 2018
90 weather alerts in February 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 February 2018. Tap one for its archive.
- Alerts
- 90
- Warnings
- 14
- Watches
- 10
- Advisories
- 58
- Busiest day
- February 18, 201813 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 |
|---|---|---|---|---|
| Feb 3, 3:28 AM CST | Wind Chill Advisory | FSD | Clay, Dickinson, Osceola | 33 hr |
| Feb 3, 3:30 PM CST | Wind Chill Advisory | DMX | Emmet, Kossuth, Palo Alto | 21 hr |
| Feb 4, 1:53 PM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 32 hr |
| Feb 4, 2:32 PM CST | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 34 more | 28 hr |
| Feb 4, 2:46 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 28 hr |
| Feb 4, 3:12 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 21 hr |
| Feb 4, 3:27 PM CST | Winter Weather Advisory | OAX | Harrison, Monona, Shelby | 24 hr |
| Feb 5, 11:36 AM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 47 more | 6 hr |
| Feb 5, 12:02 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien | 118 min |
| Feb 5, 4:57 PM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Lee, Louisa and 3 more | 4 hr |
| Feb 6, 3:56 AM CST | Winter Weather Advisory | DVN | Des Moines, Henry, Lee, Van Buren | 23 hr |
| Feb 6, 2:09 PM CST | Winter Weather Advisory | DMX | Adams, Appanoose, Davis, Decatur, Ringgold, Taylor and 2 more | 10 hr |
| Feb 6, 2:11 PM CST | Winter Weather Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 7 hr |
| Feb 7, 1:54 PM CST | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 13 hr |
| Feb 7, 2:23 PM CST | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 30 more | 40 hr |
| Feb 7, 2:51 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 39 hr |
| Feb 7, 3:41 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 35 hr |
| Feb 8, 2:59 AM CST | Winter Storm Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 30 hr |
| Feb 8, 2:59 AM CST | Winter Weather Advisory | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 9 more | 39 hr |
| Feb 8, 11:05 AM CST | Winter Storm Warning | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 14 more | 19 hr |
| Feb 8, 11:19 AM CST | Winter Storm Warning | ARX | Clayton, Fayette | 19 hr |
| Feb 8, 3:42 PM CST | Winter Weather Advisory | OAX | Monona | 11 hr |
| Feb 8, 9:07 PM CST | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 28 more | 6 hr |
| Feb 9, 3:08 AM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Jackson, Muscatine, Scott | 6 hr |
| Feb 9, 9:43 AM CST | Special Weather Statement | DVN | Des Moines, Henry, Jefferson, Keokuk, Louisa, Muscatine and 1 more | 2 hr |
| Feb 9, 3:05 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more | 16 hr |
| Feb 9, 3:09 PM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 10 more | 18 hr |
| Feb 9, 3:20 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 15 hr |
| Feb 9, 6:26 PM CST | Winter Weather Advisory | DVN | Des Moines, Lee, Louisa | 3 hr |
| Feb 10, 4:06 AM CST | Winter Weather Advisory | OAX | Fremont, Page | 23 hr |
| Feb 10, 2:10 PM CST | Winter Weather Advisory | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 5 more | 16 hr |
| Feb 10, 3:14 PM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Jefferson, Johnson and 7 more | 18 hr |
| Feb 14, 5:42 PM CST | Dense Fog Advisory | DVN | Cedar, Clinton, Delaware, Des Moines, Dubuque, Henry and 9 more | 20 hr |
| Feb 18, 2:28 AM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 8 hr |
| Feb 18, 2:53 AM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 11 hr |
| Feb 18, 3:27 AM CST | Wind Advisory | DMX | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 35 more | 11 hr |
| Feb 18, 3:30 AM CST | Wind Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek | 12 hr |
| Feb 18, 3:36 AM CST | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 11 hr |
| Feb 18, 3:43 AM CST | Winter Weather Advisory | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 31 hr |
| Feb 18, 3:45 AM CST | Winter Storm Watch | DMX | Adair, Adams, Black Hawk, Bremer, Butler, Clarke and 17 more | 24 hr |
| Feb 18, 3:45 AM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 42 more | 56 hr |
| Feb 18, 3:48 AM CST | Winter Storm Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 22 hr |
| Feb 18, 3:48 AM CST | Winter Weather Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 58 hr |
| Feb 18, 3:48 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 54 hr |
| Feb 18, 2:45 PM CST | Winter Storm Watch | DVN | Benton, Buchanan, Delaware | 13 hr |
| Feb 18, 4:02 PM CST | Winter Weather Advisory | DMX | Cass | 44 hr |
| Feb 19, 1:32 AM CST | Winter Weather Advisory | ARX | Allamakee, Clayton, Fayette, Floyd, Mitchell | 36 hr |
| Feb 19, 3:16 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Delaware | 33 hr |
| Feb 19, 3:47 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 29 hr |
| Feb 19, 1:39 PM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 13 hr |
| Feb 19, 5:22 PM CST | Dense Fog Advisory | ARX | Clayton, Fayette | 11 hr |
| Feb 19, 6:07 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer | 9 hr |
| Feb 19, 6:19 PM CST | Special Weather Statement | DVN | Lee | 26 min |
| Feb 20, 2:43 AM CST | Mesoscale Discussion | SPC | Black Hawk, Bremer, Butler, Chickasaw, Floyd, Grundy and 10 more | 3 hr |
| Feb 20, 7:39 AM CST | River Flood Warning | DVN | Johnson, Washington | 62 hr |
| Feb 20, 9:02 AM CST | Special Weather Statement | DVN | Cedar, Delaware, Johnson, Jones, Linn, Muscatine and 1 more | 43 min |
| Feb 20, 9:30 AM CST | River Flood Warning | DVN | Jackson | 58 hr |
| Feb 20, 9:37 AM CST | Flood Watch | DVN | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 11 more | 6 hr |
| Feb 20, 10:14 AM CST | River Flood Warning | DVN | Clinton, Scott | 5 days |
| Feb 20, 10:22 AM CST | Areal Flood Warning | DVN | Jackson | 24 hr |
| Feb 20, 3:19 PM CST | River Flood Warning | DVN | Iowa | 4 days |
| Feb 20, 3:19 PM CST | River Flood Warning | DVN | Johnson, Louisa, Washington | 58 hr |
| Feb 20, 3:19 PM CST | River Flood Warning | DVN | Louisa | 4 days |
| Feb 20, 3:42 PM CST | Winter Weather Advisory | DVN | Des Moines, Lee | 11 hr |
| Feb 20, 10:58 PM CST | River Flood Warning | DVN | Keokuk | 42 hr |
| Feb 21, 10:56 AM CST | River Flood Watch | DVN | Des Moines | 6 days |
| Feb 21, 2:59 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 33 hr |
| Feb 21, 3:36 PM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 33 hr |
| Feb 21, 3:42 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 35 hr |
| Feb 21, 3:47 PM CST | Winter Weather Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 20 hr |
| Feb 22, 12:09 AM CST | River Flood Warning | DVN | Louisa | 43 hr |
| Feb 22, 3:04 AM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Feb 22, 3:23 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 9 hr |
| Feb 22, 2:54 PM CST | Winter Storm Watch | OAX | Monona | 23 hr |
| Feb 22, 3:17 PM CST | Winter Storm Watch | ARX | Mitchell | 23 hr |
| Feb 22, 3:56 PM CST | Winter Storm Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 23 hr |
| Feb 22, 4:00 PM CST | Winter Storm Watch | DMX | Calhoun, Carroll, Cerro Gordo, Crawford, Emmet, Hancock and 9 more | 23 hr |
| Feb 22, 7:43 PM CST | Winter Weather Advisory | DVN | Buchanan, Delaware, Dubuque | 10 hr |
| Feb 23, 4:02 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 37 hr |
| Feb 23, 2:38 PM CST | Winter Weather Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell | 36 hr |
| Feb 23, 3:00 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 27 hr |
| Feb 23, 3:13 PM CST | Winter Weather Advisory | DVN | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 20 hr |
| Feb 23, 3:24 PM CST | Winter Weather Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 30 hr |
| Feb 23, 10:16 PM CST | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 11 hr |
| Feb 23, 11:11 PM CST | Dense Fog Advisory | DMX | Calhoun, Cerro Gordo, Emmet, Hamilton, Hancock, Humboldt and 8 more | 10 hr |
| Feb 24, 9:06 AM CST | Winter Weather Advisory | DVN | Lee, Scott, Van Buren | 114 min |
| Feb 25, 5:16 AM CST | River Flood Warning | DVN | Clinton, Scott | 71 hr |
| Feb 28, 7:35 AM CST | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more | 3 hr |
| Feb 28, 7:35 AM CST | Dense Fog Advisory | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 4 hr |
| Feb 28, 2:49 PM CST | River Flood Warning | DMX | Black Hawk | 46 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 | 5 |
| Special Weather Statement | 3 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 10 |
| Flood Watch | 1 |
| River Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 8 |
| Winter Weather Advisory | 43 |
| Cold | |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cedar County16
- Clinton County16
- Johnson County16
- Louisa County16
- Scott County16
- Des Moines County15
- Lee County15
- Muscatine County15
- Washington County15
- Linn County13
- Black Hawk County13
- Delaware County12
- Henry County12
- Jackson County12
- Jones County12
- Benton County11
- Buchanan County11
- Iowa County11
- Keokuk County11
- Bremer County11
- Grundy County11
- Hardin County11
- Marshall County11
- Clay County10
- Dickinson County10
- Dubuque County10
- Butler County10
- Calhoun County10
- Carroll County10
- Hamilton County10
- Humboldt County10
- Jasper County10
- Marion County10
- Pocahontas County10
- Poweshiek County10
- Sac County10
- Story County10
- Tama County10
- Warren County10
- Webster County10
59 more counties
- Wright County10
- Buena Vista County10
- Cherokee County10
- Ida County10
- Osceola County9
- Emmet County9
- Kossuth County9
- Palo Alto County9
- Jefferson County9
- Van Buren County9
- Boone County9
- Crawford County9
- Dallas County9
- Greene County9
- Madison County9
- Mahaska County9
- Polk County9
- Fayette County9
- Mitchell County9
- O'Brien County9
- Woodbury County9
- Adams County9
- Clarke County9
- Lucas County9
- Mills County9
- Pottawattamie County9
- Union County9
- Decatur County9
- Ringgold County9
- Taylor County9
- Audubon County8
- Cerro Gordo County8
- Davis County8
- Franklin County8
- Guthrie County8
- Hancock County8
- Monroe County8
- Winnebago County8
- Worth County8
- Chickasaw County8
- Clayton County8
- Floyd County8
- Howard County8
- Lyon County8
- Plymouth County8
- Sioux County8
- Monona County8
- Shelby County8
- Adair County8
- Appanoose County8
- Montgomery County8
- Wayne County8
- Fremont County8
- Page County8
- Wapello County7
- Winneshiek County7
- Harrison County7
- Cass County7
- Allamakee County5
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.