Instant Peril: Flash Floods (and How to Survive Them)

Hi, and welcome to Anthropogenic Climate Change, where the extremes are all the more extreme! In India, severe monsoons have caused flooding that has killed at least 125 people. The American Southwest is in for an entire season of flash flooding. In my old hometown of Flagstaff, Arizona, climate change has baked everything in a decades-long drought and caused horrific fires, which has stripped the cover from the forest, which means that when the monsoon rains are heavy, flash floods and debris flows scream down city streets. This flood careened along a street in a neighborhood I’ve driven through countless times in my life; it’s pretty shocking to see a quiet neighborhood turned into a raging, debris-filled river. We’re used to sudden monsoon downpours, but not this!

Since many regions of the world will be experiencing more extreme flooding than normal, or coping with flash floods that are unusual for the area, I figured it was time to republish this piece, which appeared on the original Scientific American Rosetta Stones blog back in 2016. Stay alive and thrive, my friends!

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