The main objective of this paper is to provide a cost effective flood monitoring system for cautioning the people during flood crisis by using simple sensor and a microcontroller.Floods have become one of the major issues taking place in various parts of the globe. Due to improper management during the flood crisis, there is a huge number of causalities taking place. The aim of this paper is to provide simple and cost effective solution in which the level of water is constantly monitored using pressure sensors and microcontrollers and the information in transmitted with the help of GSM (Global system for mobile communication) module. This paper provides design approach on both software and hardware.