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  2. Flood stage - Wikipedia

    en.wikipedia.org/wiki/Flood_stage

    The term "at flood stage" is commonly used to describe the point at which this occurs. "Gauge height" (also referred to as "stream stage", "stage of the [body of water]", or simply "stage") is the level of the water surface above an established zero datum at a given location. [2] The zero level can be arbitrary, but it is usually close to the ...

  3. Flood risk assessment - Wikipedia

    en.wikipedia.org/wiki/Flood_risk_assessment

    For a flood risk assessment to be written, information is needed concerning the existing and proposed developments, the Environment Agency modeled flood levels and topographic levels on site. At its most simple (and cheapest) level an FRA can provide an indication of whether a development will be allowed to take place at a site.

  4. Flood insurance rate map - Wikipedia

    en.wikipedia.org/wiki/Flood_Insurance_Rate_Map

    The term 100-year flood indicates that the area has a one-percent chance of flooding in any given year, not that a flood will occur every 100 years. [2] Such maps are used in town planning, in the insurance industry, and by individuals who want to avoid moving into a home at risk of flooding or to know how to protect their property. FIRMs are ...

  5. Special Flood Hazard Area - Wikipedia

    en.wikipedia.org/wiki/Special_Flood_Hazard_Area

    A Special Flood Hazard Area (SFHA) is an area identified by the United States Federal Emergency Management Agency (FEMA) as an area with a special flood or mudflow, and/or flood related erosion hazard, as shown on a flood hazard boundary map or flood insurance rate map. [1]

  6. Vermont ravaged by 'historic and catastrophic' flooding as ...

    www.aol.com/news/vermont-ravaged-historic...

    A day after torrential rains triggered deadly flash floods in New York’s Hudson Valley, the deluge continued in Vermont, where the storm caused catastrophic flooding that drew comparisons to the ...

  7. 100-year flood - Wikipedia

    en.wikipedia.org/wiki/100-year_flood

    A 100-year flood is a flood event that has on average a 1 in 100 chance (1% probability) of being equaled or exceeded in any given year. [1] A 100-year flood is also referred to as a 1% flood. [2] For coastal or lake flooding, a 100-year flood is generally expressed as a flood elevation or depth, and may include wave effects. For river systems ...

  8. High tide flood warnings throughout WA state predict ... - AOL

    www.aol.com/high-tide-flood-warnings-throughout...

    High tide flooding will be more common as sea levels rise in cities such as Seattle, Cherry Point and Port Townsend, according to the NOAA. High tide flood warnings throughout WA state predict ...

  9. 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 ...