Alert archive / Iowa / 1999
Weather alerts in Iowa, July 1999
133 weather alerts in July 1999, 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 1999. Tap one for its archive.
- Alerts
- 133
- Warnings
- 122
- Watches
- 11
- Advisories
- 0
- Busiest day
- July 2, 199938 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 2, 8:07 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 33 min |
| Jul 2, 8:43 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 47 min |
| Jul 2, 9:18 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 47 min |
| Jul 2, 9:27 AM CDT | Flash Flood Warning | FSD | Plymouth, Woodbury | 2 hr |
| Jul 2, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 44 more | 5 hr |
| Jul 2, 10:04 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 46 min |
| Jul 2, 10:21 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 49 min |
| Jul 2, 10:36 AM CDT | Tornado Warning | OAX | Monona | 34 min |
| Jul 2, 10:47 AM CDT | Tornado Warning | DMX | Crawford | 48 min |
| Jul 2, 11:29 AM CDT | Tornado Warning | DMX | Crawford | 36 min |
| Jul 2, 11:32 AM CDT | Flash Flood Warning | FSD | Woodbury | 58 min |
| Jul 2, 11:41 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 49 min |
| Jul 2, 11:41 AM CDT | Severe Thunderstorm Warning | OAX | Shelby | 49 min |
| Jul 2, 11:55 AM CDT | Tornado Warning | OAX | Harrison, Monona | 35 min |
| Jul 2, 12:01 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 34 min |
| Jul 2, 12:15 PM CDT | Tornado Watch | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 28 more | 5 hr |
| Jul 2, 12:22 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 33 min |
| Jul 2, 12:35 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 50 min |
| Jul 2, 12:37 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 48 min |
| Jul 2, 12:45 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 50 min |
| Jul 2, 1:22 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 48 min |
| Jul 2, 1:25 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 50 min |
| Jul 2, 1:42 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 48 min |
| Jul 2, 2:07 PM CDT | Tornado Warning | DMX | Audubon | 33 min |
| Jul 2, 2:28 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 47 min |
| Jul 2, 3:00 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 65 min |
| Jul 2, 3:10 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 35 min |
| Jul 2, 3:16 PM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 19 min |
| Jul 2, 3:23 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 47 min |
| Jul 2, 3:29 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison | 36 min |
| Jul 2, 4:05 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 35 min |
| Jul 2, 4:43 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 32 min |
| Jul 2, 5:12 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 33 min |
| Jul 2, 5:21 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 34 min |
| Jul 2, 5:24 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 31 min |
| Jul 2, 5:38 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 47 min |
| Jul 2, 5:46 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 34 min |
| Jul 2, 5:57 PM CDT | Severe Thunderstorm Warning | DMX | Story | 48 min |
| Jul 2, 7:10 PM CDT | Severe Thunderstorm Warning | DMX | Franklin | 50 min |
| Jul 2, 7:26 PM CDT | Severe Thunderstorm Warning | DMX | Hardin | 49 min |
| Jul 2, 9:53 PM CDT | Flash Flood Warning | DMX | Black Hawk, Butler | 4 hr |
| Jul 2, 10:16 PM CDT | Flash Flood Warning | DMX | Grundy, Hardin | 3 hr |
| Jul 2, 11:58 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 47 min |
| Jul 3, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, Mitchell and 6 more | 5 hr |
| Jul 3, 10:34 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 51 min |
| Jul 3, 11:49 AM CDT | Severe Thunderstorm Warning | OAX | Shelby | 36 min |
| Jul 5, 7:49 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 31 min |
| Jul 5, 10:33 PM CDT | Flash Flood Warning | OAX | Pottawattamie | 2 hr |
| Jul 8, 5:44 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 51 min |
| Jul 8, 5:50 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 50 min |
| Jul 8, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee, Chickasaw and 24 more | 5 hr |
| Jul 8, 6:29 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 46 min |
| Jul 8, 9:10 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 50 min |
| Jul 13, 9:30 PM CDT | Severe Thunderstorm Watch | SPC | Cerro Gordo, Clay, Dickinson, Emmet, Hancock, Kossuth and 5 more | 6 hr |
| Jul 15, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | Lyon, Osceola, Sioux | 5 hr |
| Jul 18, 3:21 AM CDT | Flash Flood Warning | FSD | Buena Vista, Cherokee, Ida, Woodbury | 3 hr |
| Jul 18, 5:47 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 33 min |
| Jul 18, 8:01 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 34 min |
| Jul 18, 11:49 PM CDT | Flash Flood Warning | ARX | Chickasaw | 3 hr |
| Jul 19, 2:32 AM CDT | Flash Flood Warning | ARX | Floyd, Mitchell | 3 hr |
| Jul 19, 2:37 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 33 min |
| Jul 19, 2:52 AM CDT | Flash Flood Warning | ARX | Chickasaw | 3 hr |
| Jul 19, 2:54 AM CDT | Severe Thunderstorm Warning | FSD | Osceola | 31 min |
| Jul 19, 3:11 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Worth | 3 hr |
| Jul 19, 3:16 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 34 min |
| Jul 19, 5:31 AM CDT | Flash Flood Warning | ARX | Floyd, Mitchell | 3 hr |
| Jul 19, 6:03 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Worth | 3 hr |
| Jul 19, 9:21 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Worth | 7 hr |
| Jul 19, 9:49 AM CDT | Flash Flood Warning | ARX | Floyd, Mitchell | 6 hr |
| Jul 19, 6:12 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 33 min |
| Jul 19, 6:24 PM CDT | Tornado Warning | DMX | Greene | 31 min |
| Jul 19, 7:15 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 50 min |
| Jul 19, 7:47 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 63 min |
| Jul 20, 2:51 AM CDT | Flash Flood Warning | FSD | Sioux | 4 hr |
| Jul 20, 4:11 AM CDT | Flash Flood Warning | FSD | Clay, O'Brien | 3 hr |
| Jul 20, 4:38 PM CDT | Flash Flood Warning | ARX | Floyd | 67 min |
| Jul 20, 4:38 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 67 min |
| Jul 20, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 41 more | 5 hr |
| Jul 20, 4:55 PM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 3 hr |
| Jul 20, 5:06 PM CDT | Tornado Warning | ARX | Chickasaw, Floyd | 69 min |
| Jul 20, 5:16 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler | 34 min |
| Jul 20, 5:17 PM CDT | Severe Thunderstorm Warning | DVN | Linn | 48 min |
| Jul 20, 5:59 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 61 min |
| Jul 20, 6:15 PM CDT | Flash Flood Warning | ARX | Howard, Mitchell | 3 hr |
| Jul 20, 6:25 PM CDT | Tornado Warning | ARX | Chickasaw | 50 min |
| Jul 20, 6:40 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 60 min |
| Jul 20, 6:45 PM CDT | Flash Flood Warning | DMX | Worth | 3 hr |
| Jul 20, 7:52 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 63 min |
| Jul 20, 8:00 PM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 4 hr |
| Jul 20, 8:00 PM CDT | Flash Flood Warning | ARX | Fayette | 4 hr |
| Jul 20, 8:20 PM CDT | Flash Flood Warning | ARX | Clayton | 4 hr |
| Jul 20, 9:22 PM CDT | Flash Flood Warning | DMX | Bremer, Butler | 4 hr |
| Jul 20, 11:59 PM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 6 hr |
| Jul 21, 2:29 AM CDT | Flash Flood Warning | FSD | Plymouth | 3 hr |
| Jul 21, 5:34 AM CDT | Flash Flood Warning | DMX | Worth | 3 hr |
| Jul 21, 5:45 AM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 6 hr |
| Jul 21, 12:05 PM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 9 hr |
| Jul 21, 5:44 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 31 min |
| Jul 21, 6:22 PM CDT | Severe Thunderstorm Warning | DVN | Jackson | 33 min |
| Jul 21, 6:28 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 47 min |
| Jul 21, 8:46 PM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 9 hr |
| Jul 22, 3:20 AM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 9 hr |
| Jul 23, 2:10 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 35 min |
| Jul 23, 7:47 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 33 min |
| Jul 23, 3:34 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 31 min |
| Jul 23, 3:48 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 47 min |
| Jul 23, 3:59 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 46 min |
| Jul 23, 4:12 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 48 min |
| Jul 23, 5:04 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 46 min |
| Jul 23, 5:06 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 49 min |
| Jul 23, 6:28 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 47 min |
| Jul 23, 6:43 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Muscatine | 47 min |
| Jul 23, 7:05 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 50 min |
| Jul 27, 4:48 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 62 min |
| Jul 27, 5:49 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 61 min |
| Jul 27, 5:50 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 30 min |
| Jul 27, 6:30 PM CDT | Tornado Watch | SPC | Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux | 6 hr |
| Jul 27, 10:45 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 32 more | 5 hr |
| Jul 27, 11:22 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Muscatine | 48 min |
| Jul 27, 11:40 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 60 min |
| Jul 27, 11:55 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 45 min |
| Jul 28, 4:50 AM CDT | Severe Thunderstorm Warning | DVN | Lee | 50 min |
| Jul 30, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Lyon | 6 hr |
| Jul 30, 7:16 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 49 min |
| Jul 30, 7:35 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 20 min |
| Jul 30, 7:50 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 70 min |
| Jul 30, 8:00 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Cerro Gordo, Chickasaw, Floyd, Howard, Mitchell and 1 more | 5 hr |
| Jul 30, 8:33 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 32 min |
| Jul 30, 10:35 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 50 min |
| Jul 30, 11:00 PM CDT | Severe Thunderstorm Warning | OAX | Page | 60 min |
| Jul 30, 11:44 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 36 min |
| Jul 31, 12:26 AM CDT | Severe Thunderstorm Warning | DMX | Story | 34 min |
| Jul 31, 12:33 AM CDT | Severe Thunderstorm Warning | DMX | Polk | 32 min |
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 | 83 |
| Tornado Warning | 8 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 2 |
| Flooding | |
| Flash Flood Warning | 31 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Floyd County18
- Chickasaw County15
- Mitchell County13
- Worth County10
- Woodbury County9
- Shelby County9
- Cerro Gordo County8
- Plymouth County7
- Monona County7
- Pottawattamie County7
- Lyon County7
- Howard County7
- Sioux County6
- Hamilton County6
- Harrison County6
- Webster County6
- Butler County6
- Muscatine County6
- O'Brien County5
- Audubon County5
- Carroll County5
- Dallas County5
- Greene County5
- Guthrie County5
- Hardin County5
- Story County5
- Franklin County5
- Cedar County5
- Osceola County5
- Hancock County5
- Fayette County5
- Scott County5
- Cherokee County4
- Adair County4
- Boone County4
- Crawford County4
- Grundy County4
- Ida County4
- Jasper County4
- Madison County4
59 more counties
- Mills County4
- Polk County4
- Poweshiek County4
- Clay County4
- Kossuth County4
- Winnebago County4
- Allamakee County4
- Bremer County4
- Jackson County4
- Linn County4
- Louisa County4
- Calhoun County3
- Fremont County3
- Keokuk County3
- Mahaska County3
- Marion County3
- Marshall County3
- Page County3
- Tama County3
- Black Hawk County3
- Dickinson County3
- Palo Alto County3
- Buena Vista County3
- Winneshiek County3
- Wright County3
- Benton County3
- Clayton County3
- Clinton County3
- Lee County3
- Adams County2
- Appanoose County2
- Cass County2
- Clarke County2
- Davis County2
- Decatur County2
- Jefferson County2
- Lucas County2
- Monroe County2
- Montgomery County2
- Ringgold County2
- Sac County2
- Taylor County2
- Union County2
- Van Buren County2
- Wapello County2
- Warren County2
- Wayne County2
- Emmet County2
- Humboldt County2
- Buchanan County2
- Delaware County2
- Dubuque County2
- Iowa County2
- Johnson County2
- Jones County2
- Washington County2
- Pocahontas County1
- Henry County1
- Des Moines County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.