Alert archive / Iowa / 1999
Weather alerts in Iowa, April 1999
73 weather alerts in April 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 April 1999. Tap one for its archive.
- Alerts
- 73
- Warnings
- 67
- Watches
- 6
- Advisories
- 0
- Busiest day
- April 8, 199957 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 |
|---|---|---|---|---|
| Apr 2, 10:22 PM CST | Severe Thunderstorm Warning | ARX | Floyd | 33 min |
| Apr 2, 10:55 PM CST | Severe Thunderstorm Warning | ARX | Chickasaw | 45 min |
| Apr 3, 2:00 AM CST | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Linn | 35 min |
| Apr 3, 3:12 PM CST | Severe Thunderstorm Warning | DVN | Iowa, Keokuk | 48 min |
| Apr 5, 3:30 PM CDT | Tornado Warning | OAX | Fremont, Page | 65 min |
| Apr 5, 4:05 PM CDT | Tornado Warning | DMX | Taylor | 35 min |
| Apr 5, 4:33 PM CDT | Tornado Warning | DMX | Adams, Union | 32 min |
| Apr 5, 4:45 PM CDT | Tornado Warning | DMX | Decatur, Ringgold | 30 min |
| Apr 5, 5:00 PM CDT | Tornado Watch | SPC | Appanoose, Clarke, Davis, Decatur, Henry, Jefferson and 11 more | 5 hr |
| Apr 5, 5:45 PM CDT | Tornado Warning | DMX | Warren | 35 min |
| Apr 5, 7:00 PM CDT | Tornado Watch | SPC | Des Moines, Louisa, Muscatine | 4 hr |
| Apr 5, 8:59 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Jones, Muscatine | 61 min |
| Apr 8, 6:20 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery | 50 min |
| Apr 8, 6:30 AM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills, Page | 6 hr |
| Apr 8, 7:36 AM CDT | Severe Thunderstorm Warning | DMX | Adair | 34 min |
| Apr 8, 7:47 AM CDT | Severe Thunderstorm Warning | DMX | Madison | 33 min |
| Apr 8, 8:37 AM CDT | Severe Thunderstorm Warning | DMX | Warren | 33 min |
| Apr 8, 9:41 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 49 min |
| Apr 8, 10:10 AM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 30 min |
| Apr 8, 10:23 AM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 32 min |
| Apr 8, 10:31 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 49 min |
| Apr 8, 11:03 AM CDT | Severe Thunderstorm Warning | OAX | Shelby | 37 min |
| Apr 8, 11:27 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 33 min |
| Apr 8, 11:43 AM CDT | Severe Thunderstorm Warning | DMX | Adair | 32 min |
| Apr 8, 11:45 AM CDT | Tornado Watch | SPC | Fremont, Mills, Page | 5 hr |
| Apr 8, 12:02 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 33 min |
| Apr 8, 12:05 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 35 min |
| Apr 8, 12:14 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 31 min |
| Apr 8, 12:39 PM CDT | Severe Thunderstorm Warning | DMX | Dallas | 36 min |
| Apr 8, 12:48 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 47 min |
| Apr 8, 1:00 PM CDT | Tornado Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 33 more | 6 hr |
| Apr 8, 1:16 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Story | 34 min |
| Apr 8, 1:48 PM CDT | Severe Thunderstorm Warning | DMX | Story | 32 min |
| Apr 8, 1:58 PM CDT | Tornado Warning | OAX | Pottawattamie | 32 min |
| Apr 8, 2:05 PM CDT | Tornado Warning | OAX | Monona | 50 min |
| Apr 8, 2:10 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 50 min |
| Apr 8, 2:12 PM CDT | Tornado Warning | OAX | Fremont, Montgomery, Page | 33 min |
| Apr 8, 2:23 PM CDT | Tornado Warning | OAX | Harrison | 32 min |
| Apr 8, 2:40 PM CDT | Tornado Warning | OAX | Montgomery, Page | 30 min |
| Apr 8, 2:42 PM CDT | Tornado Warning | OAX | Pottawattamie | 33 min |
| Apr 8, 2:45 PM CDT | Tornado Warning | DMX | Adams, Taylor | 50 min |
| Apr 8, 2:53 PM CDT | Tornado Warning | OAX | Harrison, Monona | 32 min |
| Apr 8, 2:57 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin | 33 min |
| Apr 8, 2:59 PM CDT | Tornado Warning | DMX | Cass | 31 min |
| Apr 8, 3:18 PM CDT | Tornado Warning | DMX | Adair | 42 min |
| Apr 8, 3:21 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 29 min |
| Apr 8, 3:26 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 34 min |
| Apr 8, 3:32 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 48 min |
| Apr 8, 3:46 PM CDT | Tornado Warning | DMX | Guthrie | 49 min |
| Apr 8, 3:52 PM CDT | Tornado Warning | DMX | Union | 33 min |
| Apr 8, 3:55 PM CDT | Tornado Warning | DMX | Madison | 35 min |
| Apr 8, 4:20 PM CDT | Tornado Warning | DMX | Dallas | 50 min |
| Apr 8, 4:44 PM CDT | Tornado Warning | DMX | Wayne | 36 min |
| Apr 8, 4:47 PM CDT | Tornado Warning | DMX | Polk | 48 min |
| Apr 8, 4:56 PM CDT | Tornado Warning | DMX | Lucas, Warren | 49 min |
| Apr 8, 5:07 PM CDT | Tornado Warning | DMX | Marion | 48 min |
| Apr 8, 5:15 PM CDT | Tornado Warning | DMX | Dallas | 35 min |
| Apr 8, 5:15 PM CDT | Tornado Watch | SPC | Appanoose, Benton, Cedar, Clinton, Davis, Des Moines and 26 more | 4 hr |
| Apr 8, 5:37 PM CDT | Tornado Warning | DMX | Marion, Monroe | 33 min |
| Apr 8, 5:37 PM CDT | Tornado Warning | DMX | Jasper | 33 min |
| Apr 8, 5:49 PM CDT | Tornado Warning | DMX | Appanoose | 31 min |
| Apr 8, 5:51 PM CDT | Tornado Warning | DMX | Polk | 49 min |
| Apr 8, 5:52 PM CDT | Tornado Warning | DVN | Van Buren | 48 min |
| Apr 8, 6:05 PM CDT | Tornado Warning | DMX | Davis | 35 min |
| Apr 8, 6:06 PM CDT | Tornado Warning | DMX | Mahaska | 34 min |
| Apr 8, 6:13 PM CDT | Tornado Warning | DVN | Jefferson | 47 min |
| Apr 8, 6:16 PM CDT | Tornado Warning | DMX | Wapello | 34 min |
| Apr 8, 6:17 PM CDT | Tornado Warning | DVN | Lee | 48 min |
| Apr 8, 6:33 PM CDT | Tornado Warning | DVN | Keokuk, Washington | 47 min |
| Apr 10, 11:27 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 33 min |
| Apr 21, 3:17 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 28 min |
| Apr 21, 4:42 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 33 min |
| Apr 21, 11:12 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 48 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 | 32 |
| Tornado Warning | 35 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County6
- Page County6
- Harrison County6
- Keokuk County5
- Marion County5
- Warren County5
- Mills County5
- Monona County5
- Appanoose County4
- Lucas County4
- Monroe County4
- Montgomery County4
- Adair County4
- Ida County4
- Pottawattamie County4
- Dallas County4
- Polk County4
- Story County4
- Taylor County3
- Adams County3
- Union County3
- Decatur County3
- Clarke County3
- Davis County3
- Jefferson County3
- Lee County3
- Mahaska County3
- Van Buren County3
- Wapello County3
- Washington County3
- Wayne County3
- Muscatine County3
- Madison County3
- Woodbury County3
- Shelby County3
- Boone County3
- Cass County3
- Hamilton County3
- Jasper County3
- Linn County2
29 more counties
- Iowa County2
- Ringgold County2
- Henry County2
- Des Moines County2
- Louisa County2
- Cedar County2
- Jones County2
- Greene County2
- Marshall County2
- Audubon County2
- Guthrie County2
- Hardin County2
- Floyd County1
- Chickasaw County1
- Buchanan County1
- Delaware County1
- Calhoun County1
- Carroll County1
- Crawford County1
- Sac County1
- Webster County1
- Grundy County1
- Benton County1
- Clinton County1
- Johnson County1
- Poweshiek County1
- Scott County1
- Tama County1
- Cerro Gordo 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.