Alert archive / Iowa / Severe Thunderstorm Warnings / 2015
Severe Thunderstorm Warnings in Iowa, April 2015
28 severe thunderstorm warnings in April 2015. 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 April 2015. Tap one for its archive.
- Severe Thunderstorm Warnings
- 28
- Busiest day
- April 9, 201511 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 |
|---|---|---|---|---|
| Apr 1, 6:30 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 33 min |
| Apr 1, 11:05 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 25 min |
| Apr 1, 11:19 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 26 min |
| Apr 7, 12:22 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 38 min |
| Apr 7, 10:02 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 43 min |
| Apr 7, 10:37 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Washington | 38 min |
| Apr 7, 10:48 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Jefferson, Louisa | 42 min |
| Apr 7, 11:27 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson | 48 min |
| Apr 7, 11:35 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 40 min |
| Apr 7, 11:55 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 50 min |
| Apr 8, 12:18 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 42 min |
| Apr 8, 12:39 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Jefferson, Louisa, Washington | 51 min |
| Apr 8, 9:12 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams | 33 min |
| Apr 8, 12:23 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 37 min |
| Apr 8, 10:21 PM CDT | Severe Thunderstorm Warning | DMX | Story | 24 min |
| Apr 8, 10:28 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Marshall, Tama | 47 min |
| Apr 9, 1:12 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Lucas, Wayne | 33 min |
| Apr 9, 1:45 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Wayne | 30 min |
| Apr 9, 2:05 PM CDT | Severe Thunderstorm Warning | DMX | Monroe | 40 min |
| Apr 9, 3:19 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 26 min |
| Apr 9, 4:14 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Louisa, Muscatine, Washington | 46 min |
| Apr 9, 4:32 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 43 min |
| Apr 9, 5:00 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Muscatine, Scott | 45 min |
| Apr 9, 5:29 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 30 min |
| Apr 9, 5:45 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 30 min |
| Apr 12, 6:02 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 28 min |
| Apr 12, 6:25 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 50 min |
| Apr 18, 1:29 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur | 31 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Des Moines County5
- Henry County5
- Jefferson County4
- Louisa County4
- Washington County3
- Fremont County2
- Wapello County2
- Keokuk County2
- Lee County2
- Decatur County2
- Lucas County2
- Wayne County2
- Cedar County2
- Muscatine County2
- Sioux County2
- Plymouth County1
- Mills County1
- Lyon County1
- Davis County1
- Adair County1
- Adams County1
- Jasper County1
- Polk County1
- Story County1
- Grundy County1
- Marshall County1
- Tama County1
- Monroe County1
- Johnson County1
- Clinton County1
- Scott County1
- Clayton County1
- Dubuque County1
- Clarke County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.