River flood Hazard level: Medium ?

River floods occur when water overflows riverbanks and inundates adjacent floodplains, typically caused by prolonged or intense rainfall, snowmelt, or upstream dam releases. The severity and extent of flooding depend on watershed characteristics, soil saturation, terrain slope, and the capacity of the river channel. River floods can develop gradually over days or occur rapidly, with impacts ranging from localized inundation to widespread damage across river basins.

In the area you have selected (San Juan) river flood hazard is classified as medium based on modeled flood information currently available to this tool. This means that there is approximately 1% chance per year that potentially damaging and life-threatening river floods occur (about 10% chance in the coming 10 years). Risk studies, project planning decisions, project design, and construction methods must take into account the level of river flood hazard. Note that surface floods from heavy precipitations are covered by the "Pluvial flood" hazard.

Climate change impacts: In northern Argentina, medium confidence in an increase in daily precipitation, in days of intense precipitation and the number of extreme rainfall events. In southern Argentina, model projections are inconsistent in changes in rainfall. The present hazard level is expected to increase in the future due to the effects of climate change. It would be prudent to design projects in this area to be robust to river flood hazard in the long-term.

For hazard management recommendations, see documentation.