Alert archive / Iowa / Tornado Watches / 1999
Tornado Watches in Iowa, May 1999
2 tornado watches in May 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 tornado watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in May 1999. Tap one for its archive.
- Tornado Watches
- 2
- Busiest day
- May 16, 19991 tornado watches
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 16, 3:00 PM CDT | Tornado Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Butler and 37 more | 6 hr |
| May 16, 9:00 PM CDT | Tornado Watch | SPC | Adair, Adams, Appanoose, Benton, Black Hawk, Boone and 38 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adair County2
- Adams County2
- Boone County2
- Clarke County2
- Dallas County2
- Decatur County2
- Grundy County2
- Hardin County2
- Jasper County2
- Madison County2
- Marshall County2
- Page County2
- Polk County2
- Ringgold County2
- Story County2
- Taylor County2
- Union County2
- Warren County2
- Audubon County1
- Buena Vista County1
- Butler County1
- Calhoun County1
- Carroll County1
- Cass County1
- Cherokee County1
- Crawford County1
- Franklin County1
- Fremont County1
- Greene County1
- Guthrie County1
- Hamilton County1
- Harrison County1
- Ida County1
- Mills County1
- Monona County1
- Montgomery County1
- Pocahontas County1
- Pottawattamie County1
- Sac County1
- Shelby County1
29 more counties
- Webster County1
- Woodbury County1
- Wright County1
- Appanoose County1
- Benton County1
- Black Hawk County1
- Buchanan County1
- Cedar County1
- Davis County1
- Delaware County1
- Dubuque County1
- Iowa County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Jones County1
- Keokuk County1
- Linn County1
- Lucas County1
- Mahaska County1
- Marion County1
- Monroe County1
- Muscatine County1
- Poweshiek County1
- Tama County1
- Van Buren County1
- Wapello County1
- Washington County1
- Wayne 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.