This article shall be inoperative unless it shall have been ratified as an amendment to the Constitution by the legislatures of three-fourths of the several states within seven years from the date of its submission to the states by the Congress.
(Redirected from Flash Flood Warning) A flash flood warning (SAME code: FFW) is issued when a flash flood is imminent or occurring in the warned area. A flash flood is a sudden, violent flood after a heavy rain, or occasionally after a dam break. Rainfall intensity and duration, topography, soil conditions, and ground cover contribute to flash flooding.
Fluvial (River) Flooding Fluvial flooding occurs when rivers burst their banks as a result of sustained or intense rainfall. The image below shows fluvial flood risk for Dublin, created using our Flowrouteâ¢ flood modelling software. Fluvial Flooding Impact: Cornwall. Flowrouteâ¢ is used to predict the depth, duration, velocity and extent of flooding and is highly accurate. The images below compare fluvial flood risk modelled for Lostwithiel in Cornwall against aerial photography of an actual flooding event at that location in 2010. Coastal Flooding. Coastal flooding is caused by extreme tidal conditions including high tides, storm surges and tsunamis.