MOST ACCURATE FORECAST: Monsoon storms and flash flooding possible

Posted at 5:15 AM, Jul 28, 2022
and last updated 2022-07-29 00:35:39-04

PHOENIX — The monsoon is bringing a week of storms and flooding to Arizona.

High pressure to our east is allowing abundant monsoon moisture to flow in, while also taking the edge off of our extreme heat.

Daytime highs will only reach the upper 90s to low 100s heading into the weekend, putting us several degrees below normal for this time of year.

Storm chances are now at 40 percent Friday, Saturday and Sunday in the Phoenix metro area.

Any storms that develop could produce heavy rain, so the risk for flooding is high.

Flood Watches are in effect through Friday morning for the Valley and central Arizona, but they've been extended through Saturday morning for all of northern Arizona.

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

Storm chances will decrease a bit, but still continue into early next week.


2022 Rainfall totals:

Sky Harbor Official Rainfall: 1.08" (-2.66" from average)

Valley Average (Phoenix Rainfall Index): 1.61"

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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