Alert archive / Iowa / Tornado Warnings / 2017
Tornado Warnings in Iowa, May 2017
25 tornado warnings in May 2017. 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 tornado warnings reaches back to 1986.
Tornado Warnings by county
Each county as a circle sized by its count in May 2017. Tap one for its archive.
- Tornado Warnings
- 25
- Busiest day
- May 17, 201717 tornado 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 |
|---|---|---|---|---|
| May 10, 2:34 PM CDT | Tornado Warning | DVN | Henry, Jefferson, Van Buren | 56 min |
| May 10, 3:22 PM CDT | Tornado Warning | DVN | Des Moines, Henry | 53 min |
| May 10, 3:50 PM CDT | Tornado Warning | DVN | Des Moines | 40 min |
| May 10, 3:56 PM CDT | Tornado Warning | DVN | Des Moines | 23 min |
| May 15, 6:46 PM CDT | Tornado Warning | ARX | Winneshiek | 44 min |
| May 16, 7:20 PM CDT | Tornado Warning | OAX | Shelby | 20 min |
| May 16, 7:59 PM CDT | Tornado Warning | DMX | Carroll | 16 min |
| May 17, 1:33 PM CDT | Tornado Warning | FSD | Sioux | 27 min |
| May 17, 1:56 PM CDT | Tornado Warning | FSD | Sioux | 34 min |
| May 17, 2:03 PM CDT | Tornado Warning | FSD | Sioux | 27 min |
| May 17, 2:28 PM CDT | Tornado Warning | FSD | Lyon, Sioux | 32 min |
| May 17, 3:01 PM CDT | Tornado Warning | FSD | Lyon | 29 min |
| May 17, 3:38 PM CDT | Tornado Warning | DVN | Jefferson, Keokuk, Washington | 52 min |
| May 17, 3:49 PM CDT | Tornado Warning | DVN | Henry, Jefferson, Van Buren, Washington | 41 min |
| May 17, 3:55 PM CDT | Tornado Warning | DVN | Des Moines, Henry, Lee, Louisa, Van Buren | 50 min |
| May 17, 3:59 PM CDT | Tornado Warning | DMX | Appanoose, Monroe | 46 min |
| May 17, 4:36 PM CDT | Tornado Warning | DMX | Mahaska, Monroe, Wapello | 27 min |
| May 17, 4:40 PM CDT | Tornado Warning | DVN | Des Moines, Henry, Louisa, Muscatine | 50 min |
| May 17, 6:01 PM CDT | Tornado Warning | DVN | Henry, Jefferson, Lee, Van Buren | 59 min |
| May 17, 6:19 PM CDT | Tornado Warning | DVN | Johnson, Louisa, Washington | 41 min |
| May 17, 6:32 PM CDT | Tornado Warning | DVN | Delaware, Dubuque, Jones, Linn | 43 min |
| May 17, 6:48 PM CDT | Tornado Warning | DVN | Cedar, Johnson, Muscatine | 42 min |
| May 17, 7:00 PM CDT | Tornado Warning | DVN | Des Moines | 45 min |
| May 17, 7:44 PM CDT | Tornado Warning | DVN | Clinton, Scott | 46 min |
| May 27, 4:40 PM CDT | Tornado Warning | DVN | Keokuk, Washington | 50 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Henry County6
- Des Moines County6
- Jefferson County4
- Van Buren County4
- Sioux County4
- Washington County4
- Louisa County3
- Lyon County2
- Keokuk County2
- Lee County2
- Monroe County2
- Muscatine County2
- Johnson County2
- Winneshiek County1
- Shelby County1
- Carroll County1
- Appanoose County1
- Mahaska County1
- Wapello County1
- Delaware County1
- Dubuque County1
- Jones County1
- Linn County1
- Cedar County1
- Clinton County1
- Scott County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.