The Flash Flood Monitoring and Prediction (FFMP) software has been implemented in most National Weather Service Offices. FFMP is designed to provide early detection of flash floods before flooding begins, increasing warning lead-time. FFMP uses a detailed stream basin database of streams down to 5 km2 in area. The detection of flash flooding in these small watersheds provides basin specific guidance on flash flood occurrence and intensity. This paper will demonstrate the capability of FFMP to detect flash floods by examining several FFMP case studies from the summer of 2002.

Two flash floods cases will be examined. Severe flash flooding occurred in the town of Neffs, OH on 04 June 2002 in the McMahon Creek watershed. Much of the McMahon Creek basin has been heavily strip mined, increasing runoff and reducing FFG. The second flash flood occurred in a more rural setting near the city of Mound, OH along several small tributaries of Mill Creek on 30 May 2002. FFMP provided excellent guidance for both of these flash flood occurrences.