Alert archive / Iowa / Severe Thunderstorm Warnings / 1999
Severe Thunderstorm Warnings in Iowa, July 1999
83 severe thunderstorm warnings in July 1999. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in July 1999. Tap one for its archive.
- Severe Thunderstorm Warnings
- 83
- Busiest day
- July 2, 199929 severe thunderstorm warnings
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, 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, 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, 12:01 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 34 min |
| 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, 2:28 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, 11:58 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 47 min |
| 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 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, 6:29 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 46 min |
| Jul 8, 9:10 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 50 min |
| 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 19, 2:37 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 33 min |
| Jul 19, 2:54 AM CDT | Severe Thunderstorm Warning | FSD | Osceola | 31 min |
| Jul 19, 3:16 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 34 min |
| Jul 19, 6:12 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 33 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, 4:38 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 67 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, 6:40 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 60 min |
| Jul 20, 7:52 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 63 min |
| 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 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, 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, 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, 8:33 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 county
Every county with at least one alert. A county page lists each alert that covered it.
- Shelby County6
- Plymouth County4
- Woodbury County4
- Pottawattamie County4
- Muscatine County4
- Monona County3
- Carroll County3
- Guthrie County3
- Webster County3
- Cedar County3
- Lyon County3
- Scott County3
- Lee County3
- Sioux County2
- Cherokee County2
- Harrison County2
- Audubon County2
- Dallas County2
- Adair County2
- Madison County2
- Hamilton County2
- Boone County2
- Story County2
- Franklin County2
- Butler County2
- Floyd County2
- Linn County2
- Fayette County2
- Mitchell County2
- Jackson County2
- Louisa County2
- Mills County2
- O'Brien County1
- Greene County1
- Calhoun County1
- Hardin County1
- Ida County1
- Allamakee County1
- Hancock County1
- Osceola 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.