Louisiana will soon begin updating official rainfall probability estimates that influence standards for everything from new bridge and canal construction to new neighborhoods to the flood maps that govern flood.
FEMA needs to update flood maps, set tougher standards for floodplain construction and prepare for climate impacts, environmental and planning groups say.
The flood maps don’t factor in sea level rise or changes in extreme weather, and many are years out of date. In Mexico Beach, 'minimal-risk' homes were swept away.
