Alert archive / Iowa / 2009
Weather alerts in Iowa, March 2009
137 weather alerts in March 2009, 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 2009. Tap one for its archive.
- Alerts
- 137
- Warnings
- 85
- Watches
- 10
- Advisories
- 35
- Busiest day
- March 8, 200933 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 5, 9:16 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 6 more | 6 hr |
| Mar 5, 9:18 PM CST | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 7 hr |
| Mar 6, 11:21 AM CST | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 51 hr |
| Mar 6, 3:39 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 44 hr |
| Mar 6, 9:17 PM CST | Mesoscale Discussion | SPC | Decatur, Page, Ringgold, Taylor, Wayne | 118 min |
| Mar 7, 1:46 AM CST | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 29 min |
| Mar 7, 2:13 AM CST | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 32 min |
| Mar 7, 2:40 AM CST | Severe Thunderstorm Warning | DVN | Des Moines | 17 min |
| Mar 7, 4:13 AM CST | Winter Weather Advisory | OAX | Harrison, Monona, Pottawattamie, Shelby | 29 hr |
| Mar 7, 1:38 PM CST | Areal Flood Advisory | ARX | Clayton, Fayette | 6 hr |
| Mar 7, 3:39 PM CST | Flood Watch | ARX | Clayton, Fayette | 23 hr |
| Mar 7, 3:39 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 24 hr |
| Mar 7, 3:55 PM CST | Winter Weather Advisory | DMX | Calhoun, Cerro Gordo, Emmet, Hancock, Humboldt, Kossuth and 5 more | 23 hr |
| Mar 7, 3:59 PM CST | Flash Flood Watch | DMX | Appanoose, Black Hawk, Bremer, Butler, Davis, Grundy and 10 more | 20 hr |
| Mar 7, 4:53 PM CST | River Flood Warning | DVN | Clinton, Scott | 9 days |
| Mar 7, 6:51 PM CST | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Van Buren | 39 min |
| Mar 7, 7:31 PM CST | Areal Flood Advisory | ARX | Clayton | 4 hr |
| Mar 7, 8:09 PM CST | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 11 more | 4 hr |
| Mar 7, 8:10 PM CST | Severe Thunderstorm Warning | DVN | Jefferson | 35 min |
| Mar 7, 8:34 PM CST | Severe Thunderstorm Warning | DVN | Jefferson, Washington | 23 min |
| Mar 7, 9:04 PM CST | River Flood Warning | DVN | Iowa, Johnson | 8 days |
| Mar 7, 9:31 PM CST | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Van Buren | 44 min |
| Mar 8, 3:49 AM CDT | River Flood Warning | DMX | Madison, Warren | 30 hr |
| Mar 8, 3:50 AM CDT | River Flood Warning | DVN | Johnson, Washington | 5 days |
| Mar 8, 3:56 AM CDT | River Flood Warning | DMX | Mahaska | 6 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 4 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Louisa | 6 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Louisa | 8 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Keokuk | 6 days |
| Mar 8, 5:38 AM CDT | Areal Flood Warning | DVN | Benton, Cedar, Clinton, Des Moines, Dubuque, Henry and 13 more | 15 hr |
| Mar 8, 6:17 AM CDT | Areal Flood Advisory | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 4 more | 4 hr |
| Mar 8, 7:35 AM CDT | River Flood Warning | DMX | Black Hawk, Butler | 4 days |
| Mar 8, 9:04 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 7 days |
| Mar 8, 9:23 AM CDT | River Flood Warning | DMX | Lucas | 4 days |
| Mar 8, 9:37 AM CDT | Areal Flood Warning | DMX | Appanoose, Davis, Decatur, Lucas, Mahaska, Marion and 4 more | 12 hr |
| Mar 8, 10:35 AM CDT | River Flood Warning | DVN | Jackson | 34 hr |
| Mar 8, 10:35 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 7 days |
| Mar 8, 10:35 AM CDT | River Flood Warning | DVN | Lee | 3 days |
| Mar 8, 12:11 PM CDT | Winter Storm Warning | ARX | Allamakee, Chickasaw, Howard, Winneshiek | 7 hr |
| Mar 8, 12:31 PM CDT | River Flood Warning | DMX | Madison, Warren | 3 days |
| Mar 8, 12:31 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 28 hr |
| Mar 8, 12:58 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 6 more | 4 hr |
| Mar 8, 1:09 PM CDT | River Flood Warning | DMX | Appanoose, Wayne | 20 hr |
| Mar 8, 2:02 PM CDT | River Flood Warning | DMX | Wapello | 45 hr |
| Mar 8, 4:47 PM CDT | Areal Flood Advisory | ARX | Clayton | 7 hr |
| Mar 8, 5:21 PM CDT | River Flood Warning | DMX | Polk | 3 hr |
| Mar 8, 5:30 PM CDT | River Flood Warning | DMX | Wapello | 28 hr |
| Mar 8, 5:55 PM CDT | River Flood Warning | DMX | Polk, Story | 19 hr |
| Mar 8, 8:04 PM CDT | River Flood Warning | DVN | Lee, Van Buren | 15 hr |
| Mar 8, 9:15 PM CDT | River Flood Warning | DMX | Marshall | 15 hr |
| Mar 8, 9:32 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 5 days |
| Mar 8, 9:32 PM CDT | River Flood Warning | DVN | Des Moines | 6 days |
| Mar 8, 9:32 PM CDT | River Flood Warning | DVN | Des Moines, Lee | 7 days |
| Mar 9, 3:44 AM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 6 hr |
| Mar 9, 3:45 AM CDT | Flash Flood Watch | DMX | Appanoose, Davis, Decatur, Lucas, Mahaska, Marion and 4 more | 24 hr |
| Mar 9, 4:19 AM CDT | Flash Flood Watch | DVN | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more | 32 hr |
| Mar 9, 10:01 AM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 119 min |
| Mar 9, 11:44 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 4 days |
| Mar 9, 11:44 AM CDT | River Flood Warning | DVN | Lee | 4 days |
| Mar 9, 11:44 AM CDT | River Flood Warning | DVN | Jones, Linn | 58 hr |
| Mar 9, 3:48 PM CDT | Winter Weather Advisory | OAX | Harrison, Monona, Pottawattamie, Shelby | 23 hr |
| Mar 9, 4:05 PM CDT | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 12 hr |
| Mar 9, 6:46 PM CDT | Winter Weather Advisory | FSD | Lyon, Plymouth, Sioux | 4 hr |
| Mar 9, 6:58 PM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 1 more | 5 hr |
| Mar 9, 11:45 PM CDT | Areal Flood Warning | DVN | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more | 12 hr |
| Mar 10, 3:02 AM CDT | River Flood Warning | DMX | Decatur | 11 hr |
| Mar 10, 3:40 AM CDT | Winter Weather Advisory | FSD | Dickinson, Osceola | 23 hr |
| Mar 10, 4:08 AM CDT | Wind Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Mar 10, 4:22 AM CDT | Wind Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 27 hr |
| Mar 10, 5:40 AM CDT | River Flood Warning | DMX | Madison, Warren | 14 hr |
| Mar 10, 7:47 AM CDT | Areal Flood Warning | DMX | Mahaska | 10 hr |
| Mar 10, 8:19 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 11 hr |
| Mar 10, 9:25 AM CDT | Dense Fog Advisory | DMX | Appanoose, Black Hawk, Boone, Bremer, Butler, Clarke and 23 more | 4 hr |
| Mar 10, 9:25 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 4 hr |
| Mar 10, 9:36 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 14 hr |
| Mar 10, 10:09 AM CDT | River Flood Warning | DMX | Wapello | 4 days |
| Mar 10, 2:51 PM CDT | Wind Chill Advisory | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 21 hr |
| Mar 10, 3:39 PM CDT | Wind Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 17 more | 15 hr |
| Mar 11, 12:46 AM CDT | Wind Chill Advisory | DMX | Bremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 7 more | 8 hr |
| Mar 14, 7:44 AM CDT | River Flood Warning | DMX | Wapello | 7 days |
| Mar 15, 9:46 AM CDT | River Flood Warning | DVN | Lee | 25 hr |
| Mar 22, 3:44 AM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 44 hr |
| Mar 22, 11:09 AM CDT | River Flood Warning | FSD | Sioux | 24 hr |
| Mar 22, 11:09 AM CDT | River Flood Warning | FSD | Plymouth | 24 hr |
| Mar 22, 11:22 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 24 hr |
| Mar 22, 3:13 PM CDT | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 31 hr |
| Mar 22, 11:28 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Dickinson, Emmet, Franklin, Hamilton, Hancock and 8 more | 3 hr |
| Mar 23, 3:00 AM CDT | Wind Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek | 16 hr |
| Mar 23, 3:50 AM CDT | Wind Advisory | DMX | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 34 more | 18 hr |
| Mar 23, 8:41 AM CDT | River Flood Warning | FSD | Buena Vista | 3 hr |
| Mar 23, 3:11 PM CDT | Mesoscale Discussion | SPC | Crawford, Fremont, Harrison, Mills, Monona, Plymouth and 3 more | 94 min |
| Mar 23, 3:39 PM CDT | Wind Advisory | DVN | Benton, Buchanan, Cedar, Des Moines, Henry, Iowa and 9 more | 4 hr |
| Mar 23, 3:40 PM CDT | Flash Flood Watch | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 5 more | 21 hr |
| Mar 23, 3:50 PM CDT | Tornado Watch | SPC | Adams, Audubon, Cass, Crawford, Fremont, Harrison and 11 more | 6 hr |
| Mar 23, 4:53 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 52 min |
| Mar 23, 4:57 PM CDT | Flash Flood Warning | FSD | Plymouth, Woodbury | 2 hr |
| Mar 23, 5:35 PM CDT | Tornado Warning | OAX | Harrison, Pottawattamie | 55 min |
| Mar 23, 5:36 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 24 min |
| Mar 23, 5:43 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 17 min |
| Mar 23, 5:44 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 31 min |
| Mar 23, 6:04 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Buena Vista, Carroll, Cass and 26 more | 116 min |
| Mar 23, 6:09 PM CDT | Flash Flood Warning | FSD | Lyon | 111 min |
| Mar 23, 6:17 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Lyon, O'Brien, Plymouth, Sioux, Woodbury | 43 min |
| Mar 23, 6:18 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 57 min |
| Mar 23, 6:39 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 66 min |
| Mar 23, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 46 min |
| Mar 23, 7:19 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 41 min |
| Mar 23, 7:48 PM CDT | Tornado Warning | OAX | Montgomery | 27 min |
| Mar 23, 8:03 PM CDT | Tornado Warning | DMX | Adams, Cass | 27 min |
| Mar 23, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 30 min |
| Mar 23, 9:03 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 30 min |
| Mar 23, 9:07 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison, Union | 23 min |
| Mar 23, 9:29 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison, Polk | 31 min |
| Mar 23, 9:58 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Madison, Polk, Warren | 32 min |
| Mar 24, 3:25 AM CDT | Wind Advisory | FSD | Plymouth, Woodbury | 21 hr |
| Mar 24, 3:50 AM CDT | River Flood Warning | DMX | Taylor | 7 hr |
| Mar 24, 8:43 AM CDT | River Flood Warning | DMX | Lucas | 3 days |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Wapello | 48 hr |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Wapello | 5 days |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Mahaska | 3 days |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Decatur | 29 hr |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 23 hr |
| Mar 24, 2:56 PM CDT | Areal Flood Warning | DMX | Marion | 6 hr |
| Mar 24, 3:38 PM CDT | River Flood Warning | DMX | Madison, Warren | 6 hr |
| Mar 24, 9:01 PM CDT | Areal Flood Warning | DMX | Marion | 12 hr |
| Mar 25, 10:37 AM CDT | River Flood Warning | DVN | Lee | 24 hr |
| Mar 27, 11:32 AM CDT | Winter Storm Watch | DVN | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 8 more | 16 hr |
| Mar 27, 2:02 PM CDT | Winter Storm Watch | DMX | Davis, Wapello | 14 hr |
| Mar 28, 3:33 AM CDT | Winter Storm Warning | DVN | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 11 more | 24 hr |
| Mar 28, 3:33 AM CDT | Winter Weather Advisory | DVN | Benton, Buchanan, Delaware, Dubuque, Iowa, Johnson and 3 more | 24 hr |
| Mar 28, 3:59 AM CDT | Winter Storm Warning | DMX | Appanoose, Davis, Decatur, Lucas, Mahaska, Marion and 3 more | 21 hr |
| Mar 28, 3:59 AM CDT | Winter Weather Advisory | DMX | Appanoose, Monroe, Wayne | 8 hr |
| Mar 28, 12:13 PM CDT | Winter Weather Advisory | DMX | Clarke, Jasper, Lucas, Marion, Poweshiek, Ringgold and 2 more | 13 hr |
| Mar 28, 3:59 PM CDT | Winter Storm Watch | FSD | Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux | 36 hr |
| Mar 29, 3:35 AM CDT | Winter Weather Advisory | DVN | Clinton, Des Moines, Lee, Louisa, Muscatine, Scott | 5 hr |
| Mar 30, 11:16 AM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 8 hr |
| Mar 31, 1:26 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Sioux | 3 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 | 21 |
| Tornado Warning | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 7 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 2 |
| River Flood Warning | 50 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 12 |
| Cold | |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 10 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Plymouth County19
- Lee County18
- Des Moines County17
- Louisa County16
- Dickinson County16
- Lyon County16
- Sioux County16
- Woodbury County15
- O'Brien County14
- Wapello County14
- Jefferson County13
- Osceola County13
- Wayne County13
- Henry County12
- Johnson County12
- Van Buren County12
- Washington County12
- Mahaska County12
- Marion County12
- Muscatine County11
- Clay County11
- Decatur County11
- Appanoose County11
- Cedar County10
- Clinton County10
- Keokuk County10
- Scott County10
- Buena Vista County10
- Cherokee County10
- Lucas County10
- Madison County10
- Iowa County9
- Ida County9
- Monona County9
- Butler County8
- Jones County8
- Linn County8
- Harrison County8
- Pottawattamie County8
- Davis County8
59 more counties
- Monroe County8
- Warren County8
- Bremer County7
- Cerro Gordo County7
- Worth County7
- Clayton County7
- Dubuque County7
- Jackson County7
- Poweshiek County7
- Black Hawk County6
- Franklin County6
- Hancock County6
- Winnebago County6
- Chickasaw County6
- Fayette County6
- Howard County6
- Winneshiek County6
- Benton County6
- Shelby County6
- Emmet County6
- Kossuth County6
- Palo Alto County6
- Clarke County6
- Polk County6
- Grundy County5
- Hamilton County5
- Hardin County5
- Wright County5
- Allamakee County5
- Floyd County5
- Mitchell County5
- Buchanan County5
- Page County5
- Ringgold County5
- Taylor County5
- Humboldt County5
- Pocahontas County5
- Marshall County5
- Dallas County5
- Mills County5
- Montgomery County5
- Delaware County4
- Sac County4
- Jasper County4
- Story County4
- Union County4
- Fremont County4
- Adair County4
- Adams County4
- Cass County4
- Crawford County4
- Tama County3
- Boone County3
- Webster County3
- Audubon County3
- Guthrie County3
- Calhoun County2
- Carroll County2
- Greene County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.