River Flood Advisories in Iowa
120 river flood advisories since 1986. 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 river flood advisories reaches back to 2005.
River Flood Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- River Flood Advisories
- 120
- Busiest year
- 200741 river flood advisories
- Average year
- 15over 8 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County28
- Harrison County23
- Louisa County19
- Linn County11
- Des Moines County8
- Johnson County8
- Lee County8
- Scott County8
- Mills County8
- Muscatine County7
- Cedar County6
- Clinton County6
- Washington County6
- Henry County5
- Jones County5
- Monona County4
- Buchanan County3
- Jackson County3
- Benton County2
- Delaware County2
- Jefferson County2
- Keokuk County2
- Montgomery County2
- Dubuque County1
- Iowa County1
- Van Buren County1
- Fremont County1
Nearby
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.