Alert archive / Iowa / 2012
Weather alerts in Iowa, July 2012
117 weather alerts in July 2012, 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 July 2012. Tap one for its archive.
- Alerts
- 117
- Warnings
- 56
- Watches
- 4
- Advisories
- 19
- Busiest day
- July 26, 201237 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 |
|---|---|---|---|---|
| Jul 1, 6:55 AM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 35 min |
| Jul 1, 8:09 AM CDT | Special Weather Statement | DVN | Des Moines, Henry, Jefferson, Van Buren | 51 min |
| Jul 1, 8:24 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 36 min |
| Jul 1, 8:30 AM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 27 min |
| Jul 1, 3:24 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 5 days |
| Jul 1, 3:35 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cerro Gordo, Cherokee, Clay, Dickinson and 13 more | 55 min |
| Jul 2, 4:02 AM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 24 hr |
| Jul 2, 3:08 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 36 hr |
| Jul 2, 3:49 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 48 hr |
| Jul 3, 3:26 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 17 hr |
| Jul 3, 4:03 AM CDT | Excessive Heat Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 5 days |
| Jul 4, 3:23 AM CDT | Excessive Heat Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 4 days |
| Jul 4, 3:55 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 65 hr |
| Jul 4, 3:31 PM CDT | Excessive Heat Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 51 hr |
| Jul 4, 3:42 PM CDT | Excessive Heat Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 53 hr |
| Jul 4, 4:08 PM CDT | Excessive Heat Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 3 days |
| Jul 7, 3:25 AM CDT | Heat Advisory | OAX | Fremont, Mills, Montgomery, Page | 17 hr |
| Jul 7, 4:20 PM CDT | Special Weather Statement | DVN | Clinton, Jackson | 55 min |
| Jul 7, 4:59 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 37 min |
| Jul 7, 6:01 PM CDT | Special Weather Statement | DVN | Cedar | 44 min |
| Jul 9, 5:32 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 28 min |
| Jul 13, 1:20 PM CDT | Special Weather Statement | DVN | Lee, Van Buren | 3 hr |
| Jul 13, 1:35 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 8 more | 55 min |
| Jul 13, 1:54 PM CDT | Special Weather Statement | DVN | Lee | 111 min |
| Jul 13, 3:00 PM CDT | Special Weather Statement | DVN | Lee | 45 min |
| Jul 13, 3:38 PM CDT | Special Weather Statement | DVN | Des Moines | 67 min |
| Jul 13, 3:42 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 3 days |
| Jul 13, 4:08 PM CDT | Special Weather Statement | DVN | Des Moines | 67 min |
| Jul 13, 6:02 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Clay, Emmet, Hancock, Kossuth, Mitchell and 3 more | 88 min |
| Jul 13, 7:22 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 53 min |
| Jul 13, 8:28 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Palo Alto | 32 min |
| Jul 13, 9:01 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 44 min |
| Jul 14, 8:48 AM CDT | Special Weather Statement | DVN | Benton | 57 min |
| Jul 14, 9:21 AM CDT | Special Weather Statement | DVN | Benton | 24 min |
| Jul 14, 10:28 AM CDT | Special Weather Statement | DVN | Buchanan, Delaware | 32 min |
| Jul 14, 11:27 AM CDT | Special Weather Statement | DVN | Benton, Buchanan | 63 min |
| Jul 14, 12:07 PM CDT | Special Weather Statement | DVN | Benton | 23 min |
| Jul 14, 3:00 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 45 min |
| Jul 14, 3:51 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 39 min |
| Jul 14, 4:09 PM CDT | Special Weather Statement | OAX | Harrison | 36 min |
| Jul 14, 4:19 PM CDT | Special Weather Statement | OAX | Shelby | 56 min |
| Jul 14, 4:32 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 10 more | 88 min |
| Jul 14, 6:01 PM CDT | Special Weather Statement | OAX | Monona | 29 min |
| Jul 15, 3:36 AM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 65 hr |
| Jul 16, 3:01 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 52 hr |
| Jul 17, 2:04 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 18 more | 38 hr |
| Jul 17, 2:56 PM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 29 hr |
| Jul 17, 3:31 PM CDT | Heat Advisory | FSD | Cherokee, Ida, Lyon, O'Brien, Osceola, Plymouth and 2 more | 28 hr |
| Jul 18, 11:38 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 18 more | 67 min |
| Jul 18, 12:58 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 21 more | 7 hr |
| Jul 18, 3:07 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 22 more | 53 min |
| Jul 18, 3:19 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 41 min |
| Jul 18, 3:22 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 38 min |
| Jul 18, 3:54 PM CDT | Heat Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 6 days |
| Jul 18, 3:57 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 39 min |
| Jul 20, 4:18 AM CDT | Heat Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 5 days |
| Jul 20, 11:22 AM CDT | Excessive Heat Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 37 more | 5 days |
| Jul 20, 3:05 PM CDT | Excessive Heat Warning | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 5 days |
| Jul 22, 2:32 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Mitchell and 3 more | 88 min |
| Jul 23, 8:50 PM CDT | Heat Advisory | DMX | Black Hawk, Bremer, Butler, Franklin, Grundy, Hardin and 6 more | 46 hr |
| Jul 23, 11:13 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Howard, Mitchell, Winneshiek and 1 more | 92 min |
| Jul 24, 3:32 AM CDT | Mesoscale Discussion | SPC | Dubuque, Jackson | 58 min |
| Jul 24, 4:09 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 40 hr |
| Jul 24, 11:37 AM CDT | Heat Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 33 hr |
| Jul 25, 4:28 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 7 hr |
| Jul 25, 5:11 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 34 min |
| Jul 25, 5:15 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 39 min |
| Jul 25, 5:16 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 29 min |
| Jul 25, 5:16 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Allamakee, Audubon, Black Hawk, Boone and 48 more | 8 hr |
| Jul 25, 5:25 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien | 35 min |
| Jul 25, 5:31 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 59 min |
| Jul 25, 5:39 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 24 min |
| Jul 25, 5:43 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 47 min |
| Jul 25, 6:03 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 42 min |
| Jul 25, 6:08 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 52 min |
| Jul 25, 6:11 PM CDT | Special Weather Statement | OAX | Monona | 64 min |
| Jul 25, 6:17 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 43 min |
| Jul 25, 6:38 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 52 min |
| Jul 25, 6:58 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 47 min |
| Jul 25, 7:09 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Pocahontas | 51 min |
| Jul 25, 7:20 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 25 more | 85 min |
| Jul 25, 7:21 PM CDT | Mesoscale Discussion | SPC | Cass, Fremont, Mills, Montgomery, Page, Pottawattamie and 1 more | 54 min |
| Jul 25, 7:23 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene, Sac | 37 min |
| Jul 25, 7:29 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 46 min |
| Jul 25, 7:38 PM CDT | Special Weather Statement | OAX | Montgomery | 52 min |
| Jul 25, 8:02 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Greene, Hamilton, Webster | 43 min |
| Jul 25, 8:09 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hamilton, Hancock, Hardin, Wright | 51 min |
| Jul 25, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 53 min |
| Jul 25, 8:35 PM CDT | Special Weather Statement | DVN | Benton, Buchanan, Delaware, Linn | 85 min |
| Jul 25, 8:38 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 22 min |
| Jul 25, 8:39 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Hardin, Story, Webster | 66 min |
| Jul 25, 8:40 PM CDT | Mesoscale Discussion | SPC | Benton, Buchanan, Cedar, Clayton, Clinton, Delaware and 17 more | 65 min |
| Jul 25, 8:57 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 6 hr |
| Jul 25, 9:04 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Polk, Story, Warren | 41 min |
| Jul 25, 9:10 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Story, Tama | 50 min |
| Jul 25, 9:22 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Linn | 53 min |
| Jul 25, 9:40 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 35 min |
| Jul 25, 9:52 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 33 min |
| Jul 25, 9:57 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 34 min |
| Jul 25, 10:03 PM CDT | Severe Thunderstorm Warning | ARX | Fayette, Winneshiek | 43 min |
| Jul 25, 10:12 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones, Linn | 63 min |
| Jul 25, 10:12 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 48 min |
| Jul 25, 10:22 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Iowa, Johnson, Linn | 53 min |
| Jul 25, 10:25 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 65 min |
| Jul 25, 10:55 PM CDT | Areal Flood Advisory | ARX | Fayette | 84 min |
| Jul 25, 10:56 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Johnson, Jones, Linn | 64 min |
| Jul 25, 11:34 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Dubuque, Jackson, Jones, Scott | 86 min |
| Jul 25, 11:45 PM CDT | Special Weather Statement | DVN | Des Moines | 60 min |
| Jul 26, 1:21 AM CDT | Special Weather Statement | DVN | Des Moines | 69 min |
| Jul 26, 1:35 AM CDT | Special Weather Statement | DVN | Cedar | 25 min |
| Jul 26, 3:59 PM CDT | Special Weather Statement | OAX | Page | 31 min |
| Jul 26, 4:02 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 28 min |
| Jul 26, 4:29 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 31 min |
| Jul 26, 4:44 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 46 min |
| Jul 26, 5:19 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 26 min |
| Jul 26, 5:46 PM CDT | Special Weather Statement | OAX | Page | 29 min |
| Jul 29, 3:25 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Davis, Des Moines, Hamilton, Hardin and 20 more | 2 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 | 49 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 7 |
| Heat Advisory | 18 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Benton County15
- Buchanan County15
- Winneshiek County14
- Jackson County14
- Linn County14
- Chickasaw County13
- Clayton County13
- Clinton County13
- Delaware County13
- Montgomery County13
- Fayette County12
- Mitchell County12
- Cedar County12
- Dubuque County12
- Jones County12
- Page County12
- Franklin County11
- Palo Alto County11
- Allamakee County11
- Howard County11
- Johnson County11
- Hardin County11
- Pottawattamie County11
- Des Moines County10
- Woodbury County10
- Cerro Gordo County10
- Kossuth County10
- Wright County10
- Black Hawk County10
- Grundy County10
- Worth County10
- Mills County10
- Shelby County10
- Cherokee County9
- Clay County9
- Dickinson County9
- O'Brien County9
- Humboldt County9
- Pocahontas County9
- Floyd County9
59 more counties
- Muscatine County9
- Scott County9
- Boone County9
- Butler County9
- Hamilton County9
- Marshall County9
- Polk County9
- Poweshiek County9
- Story County9
- Tama County9
- Fremont County9
- Harrison County9
- Monona County9
- Van Buren County8
- Keokuk County8
- Calhoun County8
- Emmet County8
- Hancock County8
- Sac County8
- Webster County8
- Iowa County8
- Lee County8
- Bremer County8
- Dallas County8
- Greene County8
- Guthrie County8
- Henry County7
- Jefferson County7
- Mahaska County7
- Buena Vista County7
- Ida County7
- Osceola County7
- Sioux County7
- Winnebago County7
- Louisa County7
- Washington County7
- Carroll County7
- Cass County7
- Jasper County7
- Lyon County6
- Plymouth County6
- Adair County6
- Adams County6
- Audubon County6
- Madison County6
- Marion County6
- Monroe County6
- Union County6
- Wapello County6
- Appanoose County5
- Davis County5
- Taylor County5
- Warren County5
- Clarke County4
- Crawford County4
- Decatur County4
- Lucas County4
- Ringgold County4
- Wayne County4
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.