Flooding - April 22nd-27th, 2011

National Weather Service, Springfield, MO

Summary

Synopsis

Maps

Reports

Event Summary

Several rounds of heavy rainfall produced significant flooding across southern Missouri from Friday, April 22 through Tuesday, April 26. Storm total rainfall amounts through Tuesday, April 26 generally ranged from 4 to 8 inches along the Interstate 44 corridor to the 10 to 14 inches across far southern Missouri south of highway 60.

Rainfall Map

This torrential rainfall resulted in widespread flash flooding and river flooding. Numerous roads and low water crossings were closed and flooded. As many as 400 state roads were closed during the flood event.

Event Synopsis

The heavy rainfall developed as a front stalled from the southern Plains into Ohio River valley over several days. A train of upper level storm systems interacted with this front and copious of amounts of gulf and Pacific moisture to generate several rounds of thunderstorms and torrential rainfall.
Weather Map Loop

Event Maps

Below are hydrographs for rivers across the area during the flood event.

flood stage

hydrograph

Event Reports

As many as 400 Missouri state highways were closed during the flood event.

The map below displays road closures Tuesday night April, 26th. road closure map