Video: Flash flood waters rushing off the Phoenix Mountains Preserve

It doesn’t rain a lot in Phoenix but when it does, sometimes it comes in massive volumes. That was the case on October 1 – 2, 2018.

Storm water rushes across a road
Rare flash flood in Phoenix caused by rains from Tropical Depression Rosa 2018

Although Hurricane Rosa was downgraded to a tropical depression as it spun eastward from the Pacific Ocean and over Baja Peninsula in Mexico a couple days earlier, it still packed quite a punch as it made landfall and dumped lots of rain on Arizona.

Thankfully, I had some free time when the storm reached its rainfall crescendo and was able to head out with my GoPro video camera. I caught this rarely seen flash flood in the vicinity of 40th Street and Shea Blvd in Phoenix as rain water gushed off of the rocky hills of the nearby Phoenix Mountains Preserve and through the normally dry creek bed, known as a wash.

Here’s my video report:

Just prior to me shooting the video above, the weather reporters in Phoenix were touting October 2018 as the eighth wettest October since records were kept. And that was on the second day of the month. As of 2 p.m. the rain gauge at my home measured just over three inches – equivalent to roughly 30% of the average annual rainfall total for Phoenix. It’s safe to say, this will go down as a top five October in terms of rainfall.

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