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  2. Flash flood guidance system - Wikipedia

    en.wikipedia.org/wiki/Flash_flood_guidance_system

    The flash flood guidance approach to developing flash flood warnings rests on the real-time comparison of observed or forecast rainfall volume of a given duration and over a given catchment to a characteristic volume of rainfall for that duration and catchment that generates bank full flow conditions at the catchment outlet. If the observed or ...

  3. Flash flood warning - Wikipedia

    en.wikipedia.org/wiki/Flash_flood_warning

    A flash flood warning (SAME code: FFW) is a severe weather warning product of the National Weather Service that is issued by national weather forecasting agencies throughout the world to alert the public that a flash flood is imminent or occurring in the warned area.

  4. Flood warning - Wikipedia

    en.wikipedia.org/wiki/Flood_warning

    A flood warning is closely linked to the task of flood forecasting.The distinction between the two is that the outcome of flood forecasting is a set of forecast time-profiles of channel flows or river levels at various locations, while "flood warning" is the task of making use of these forecasts to make decisions about whether warnings of floods should be issued to the general public or ...

  5. An unprecedented number of flood emergencies have ... - AOL

    www.aol.com/unprecedented-number-flood...

    All flash flood warnings are a sign of a very dangerous situation, but flash flood emergencies are the most rare – accounting for around 1% of flash flood warnings since 2019 – for a reason.

  6. UPDATE: Flash flood warning affecting Denton and Wise ... - AOL

    www.aol.com/flash-flood-warning-affecting-denton...

    On Sunday at 4:29 p.m. an updated flash flood warning was issued by the NWS Fort Worth TX. ... Driving through deep water can also negatively affect a vehicle's mechanical and electrical systems.

  7. UPDATE: The current flash flood warning will expire at 11 a.m ...

    www.aol.com/flash-flood-warning-currently-effect...

    The warning was for Dallas County. According to the NWS, "The heavy rain has ended. Nuisance flooding of low-lying and/or poor drainage areas may continue for a few hours until the water has had a ...

  8. Flash flood watch - Wikipedia

    en.wikipedia.org/wiki/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 ...

  9. Flood alert - Wikipedia

    en.wikipedia.org/wiki/Flood_alert

    A flood warning or flash flood warning is issued when flooding is imminent or already occurring. When flood warnings are issued, it means that area waterways will likely soon be in flood. [2] Not all flood watches suggest that large-scale flooding, such as during landfalling tropical cyclones, is possible.

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