Flash floods like those that have occurred in recent weeks can be incredibly destructive due to how hard they are to predict. According to the National Oceanic and Atmospheric Administration (NOAA), “[Flash floods] can happen within minutes of the causative rainfall, limiting the time available to warn and protect the public.”
And they seem to be getting even more extreme.
Here’s why flash floods are getting worse, and how you can best stay safe.
00:00Climate change has in part escalated the opportunity for these storms to be holding more water and to have higher rates of rainfall over short periods of time.
00:09As a result, instead of infrastructure having to deal with two inches of rain over a longer period of time, it can now face two inches in one hour,
00:18potentially leading to subway systems flooding, drainage systems getting overwhelmed, or rivers overflowing.
00:24First, it's important to understand whether you are in a risk zone.
00:28Those on hills will have to prepare for what it would mean to be an island for a period of time,
00:33and those in low ground will need to be able to evacuate safely.
00:38Second, it's essential to have a go-kit for either staying in one place for long periods of time or leaving quickly.
00:45Finally, assess where to get warning information in your area, like NOAA Weather Audio or other warning systems.
00:52The main advice? Seek higher ground as fast as possible.
00:56Experts emphasize relying on local emergency response systems and understanding the messages that they are putting out,
01:02the evacuation zones, and the safest way to get out of risk areas.
01:06Experts also say to beware of water in general at these times, as even minimal amounts can sweep you off your feet.
01:12One expert says, if you don't know how deep it is, don't go in.
01:16After the storm passes, wait until the water recedes before attempting to leave your home,
01:20because flood waters can contain dangerous debris.
01:23Listen in the aftermath to public officials through FEMA or other agencies,
01:27who know which areas are safe and which are not, as well as which roads are open or closed.
01:33So for you to say, wait until the water recedes,
