Flood Threat Increasing in Johnson Co. and western Jackson Co.

Update 7:50pm, rainfall has exceeded four inches in several places. Cars stalled due to flooding in Olathe. Indiana Creek and Blue River at risk of flooding. The southern reaches of Cedar Creek may flood. The Blue River near Stanley has risen 1.5' in the past hour and will rise rapidly.

Real time rainfall amounts courtesy Overland Park Flood Control

The heaviest is 4.33" in west Olathe and downtown Olathe as well as 4.45" at 135th and Pflum.




Update: 7:29pm: Flooding in west Olathe, hail continuing to fall, electricity is out.


Original Posting:

The Kansas City area has an increasing flood threat. One rain gauge in Johnson Co. has passed the 3" mark. There is a cluster of storms in Johnson Co. that is moving very slowly ENE (northern yellow arrow).

There  is a new cluster moving NE along I-35 out of NW Miami Co. that will reinforce the heavy rain potential over the main cluster.

The red polygons are severe thunderstorm warnings and the yellow polygon is a a brand new flash flood warning.

At the very least an additional 1-3" inches will fall.

Compare to radar in the posting below and note the flash flood safety rules.