Extreme Weather Could Dampen Border Wall's Effectiveness
At a Glance The wall would likely need flood gates that would be open for months at a time.The Southwest monsoon season can bring flash floods and other extreme weather.The wall can trap debris and make flooding worse. Annual summer monsoon rainfall could put a kink in U.S. President Donald Trump's plans for a border wall to block immigrants crossing from Mexico into the U.S. Parts of the wall will likely need to be equipped with that could remain open...