> Then there’s the terrain. In terms of response, mountains mean there are fewer roads to any given town, hampering both evacuation and response efforts, Camp

> Then there’s the terrain. In terms of response, mountains mean there are fewer roads to any given town, hampering both evacuation and response efforts, Camp says. Water will always flow downhill, no matter what, but mountainous terrain constrains where it can go. That means water cascading down slopes will more quickly accumulate in lower-elevation areas, worsening effects—and it will pick up speed as it travels, potentially making the flood even more dangerous. I gained a deep respect for rains and flooding in the 2005 Alstead NH flood, where 13 inches of rain pooled above the town in ~20 hours, unable to drain effectively through the culvert, and burst through as a massive downhill wall of water. https://www.wmur.com/article/remembering-deadly-flood-that-ripped-through-alstead-15-years-ago/34319231 https://www.wmur.com/article/remembering-deadly-flood-that-r... Mountainous terrain giving water speed is truly terrifying. Often too there are channels and valleys which experience massive amounts of water. It's nightmarish to imagine how much damage this could be, how hard it will be to support the people and places impacted so deeply.