Arizona’s monsoon storms will continue into the weekend according to the National Weather Service, with high chances of heavy rain for the Valley and many other parts of the state.

Most of Arizona, save for a small chunk in the southwest that includes Yuma, is still under a flash flood watch, which was extended until Friday at 5 a.m. Tom Frieders with NWS in Phoenix said the weather service is gauging daily how long the flash flood watch will last, and it’s possible it could get another extension based on weather conditions. 

“This pattern is kind of holding into early next week,” Frieders said. He also mentioned the storm patterns this weekend could produce extreme rainfall in the Valley.

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From late morning to early afternoon Thursday, the weather service issued an increasing number of flash flood warnings for Central and Southern Arizona, a break from the standard earlier in the week of flash flood warnings primarily in Northern Arizona. 

Maricopa had it’s share of road closing and flood warnings this month. For up to date reports & warnings, go to Get Weather Info at Maricopa’s Government website.

As of Thursday at 1:30 p.m., there are three different flash flood warnings southeast of Phoenix near Globe, which encompass Apache Junction and South Gila County, in effect until 4 p.m. There is also one including Rio Verde and Sunflower just north of Phoenix in effect until 5:30 p.m.

“Flash flooding is a significant risk with these storms as they are moving slowly; stay vigilant!” the weather service said in a tweet.

The National Weather Service in Tucson also issued several flash flood warnings for areas in Southern Arizona, including northeastern Pima County and southeastern Pinal County until 3 p.m., West Central Graham County and East Central Pinal County until 2:30 p.m., and Southeastern Pima County until 2 p.m. and Central Pima County until 2:15 p.m.  

Throughout the weekend, the weather service forecasts a 20-40% chance of rain for Phoenix daily, with the chances even higher for more elevated areas surrounding the city. And it won’t just be light showers. 

“An abundance of moisture will allow any showers and storms that develop to produce heavy rainfall,” the weather service said in its forecast discussion. 

According to the forecast, the chance of rain is fairly steady each day this weekend, although Frieders said Sunday has the potential for more widespread storm coverage. Frieders said spotty storms could still pose a significant risk for dangerous flooding, especially given how slowly they are moving. 

“There’ll be that risk every day,” Frieders said. 

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