Flash flood watch

A flash flood watch (SAME code: FFA; also referred as a "green box" by meteorologists) is severe weather watch product of the National Weather Service that is issued when conditions are favorable for flash flooding in flood-prone areas, usually when grounds are already saturated from recent rains, or when upcoming rains will have the potential to cause a flash flood. These watches are also occasionally issued when a dam may break in the near future.[1]

Countries such as Australia also issue similarly worded warnings.[2]

  1. ^ "Flash flood watch definition". Weather.gov. 16 August 2019.
  2. ^ "Flood Warning Services". Bureau of Meteorology. Retrieved 19 June 2014.