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.
The National. Weather Service defines a flash flood as âA rapid and extreme flow of high water into a normally. dry area, or a rapid rise in a stream or creek above a predetermine d flood level, beginning. within six hours of the causative event (e.g., intense rainfall, dam failure, ice jam).