MOST ACCURATE FORECAST: Flood Watch this weekend

Posted at 6:02 AM, Jul 23, 2022
and last updated 2022-07-24 00:56:35-04

PHOENIX — The heat cools down a bit this weekend as our chances for monsoon storms ramps up.

High pressure will move east taking the edge off of our heat. That will also open up a surge of monsoon moisture from the south, ramping up storm chances across our state.

Flood Watches take effect Sunday afternoon through Monday morning for the Valley along with central and southern Arizona.

Gusty winds, lightning and downpours will be the main threats with any storms that move through. There's also an increased risk for flash flooding near our wildfire burn scars.

Here in the Valley, scattered to widespread thunderstorm are expected through Tuesday. Some spots could see between a half of an inch and an inch of rain over those 3 days.

As storm chances increase, temperatures will drop dramatically. Expect Valley highs near 100 by Monday and Tuesday.

2022 Rainfall totals:

Sky Harbor Official Rainfall: 0.91" (-2.65" from average)

Valley Average (Phoenix Rainfall Index): 1.21"

Daily rainfall reports from all across the Valley can be found here.


Average Monsoon Rainfall in Phoenix (1981-2010): 2.71" of rain

NEW Average Monsoon Rainfall in Phoenix (1991-2020): 2.43" of rain

Average Yearly Rainfall in Phoenix (1981-2010): 8:03" of rain

NEW Average Yearly Rainfall in Phoenix (1991-2020): 7.22" of rain

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