Severe Flooding

http://www.srh.noaa.gov/oun/?n=events-20150506

A series of severe thunderstorms produced tornadoes, large hail, damaging winds and flash flooding in  Oklahoma western north Texas during the afternoon and evening hours of May 6th. Several supercell thunderstorm tracked through parts of the I-44 corridor in Caddo, Grady, McClain and Cleveland counties, and produced several tornadoes in the area. These slow-moving storms also dropped 1 to 3+ inches of rain over areas that had received heavy rains of 2 to 4+ inches on May 5th, and severe flash flooding occurred in several locations...

The Thunderstorms and flash flooding lasted all day. A supercell was dropped a tornado in Oklahoma. Rainfall reached up to 7 inches in parts of Oklahoma.