Probable maximum flood

{
  "id": "MLC-T-MET-008162",
  "term": "Probable maximum flood",
  "field": "Meteorology and atmospheric science",
  "definition": "The hypothetical greatest flood that can be reasonably expected to occur at a particular point on a river, resulting from the most severe combination of meteorological and hydrological conditions. The calculation involves estimating the probable maximum precipitation (PMP) over the drainage basin and then using a rainfall-runoff model to simulate the resulting flow. This value is a theoretical upper limit used in the design of high-hazard structures like spillways for large dams.",
  "synonyms": [
    "maximum possible flood"
  ],
  "url": "https://mlchart.com/terminology/meteorology/probable-maximum-flood/"
}