Alert archive / Nebraska / Johnson County
Flash Flood Warnings in Johnson County, Nebraska
36 flash flood warnings since 1986. An alert counts here when it covered this county. The archive of flash flood warnings reaches back to 1986.
Johnson County and its neighbors
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Flash Flood Warnings
- 36
- Busiest year
- 20085 flash flood warnings
- Average year
- 2over 17 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
The latest flash flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 18, 3:49 PM CDT | Flash Flood Warning | OAX | 4 hr |
| May 17, 12:54 AM CDT | Flash Flood Warning | OAX | 93 min |
| May 16, 11:08 PM CDT | Flash Flood Warning | OAX | 3 hr |
| Apr 14, 11:54 PM CDT | Flash Flood Warning | OAX | 3 hr |
| Apr 14, 11:16 PM CDT | Flash Flood Warning | OAX | 3 hr |
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. Rebuilt daily.