Progeny Systems proposes to develop a deployable, low-cost flood inundation sensor for alerts, warnings and notifications to responders and citizens using IoT Wireless Emergency Alerts. The sensor will be ruggedized, modular, deployable, GPS-enabled, and submersible. The sensor will be part of a scalable wireless mesh sensor network. The sensor network will consist of an array of wireless sensor nodes that can measure ever-changing flood conditions and report them back to an operations center through a gateway node. The data from all the nodes in the network will be collected and analyzed at the operations center so as to rapidly predict, detect and react to inundation of low-lying areas, underpasses, and critical transportation corridors. This critical data will allow for federal, state and local governments to make real-time decisions pertaining to flood response.