Alert archive / Iowa / Johnson County
River Flood Watches in Johnson County, Iowa
45 river flood watches since 1986. An alert counts here when it covered this county. The archive of river flood watches reaches back to 2005.
Johnson County and its neighbors
Each county as a circle sized by its count since 1986. Tap one for its archive.
- River Flood Watches
- 45
- Busiest year
- 20179 river flood watches
- Average year
- 5over 9 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.
The latest river flood watches
The most recent on file, newest first.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 19, 8:54 AM CDT | River Flood Watch | DVN | 20 hr |
| Sep 16, 10:56 AM CDT | River Flood Watch | DVN | 12 hr |
| Aug 13, 11:14 AM CDT | River Flood Watch | DVN | 72 hr |
| Aug 13, 11:10 AM CDT | River Flood Watch | DVN | 68 hr |
| Jul 2, 2:57 PM CDT | River Flood Watch | DVN | 7 days |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive
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.