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MOST ACCURATE FORECAST: Sizzling heat, air quality alerts and more chances for monsoon storms

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PHOENIX — The monsoon brought severe storms to the Valley for the second night in a row.

Chances for more showers and thunderstorm activity will continue across the Valley and the rest of central and southern Arizona through the overnight hours.

Watch out for gusty winds, blowing dust, dangerous lightning, downpours and flooding, especially near wildfire burn scars. Stay weather-aware and never attempt to drive through flooded washes or roadways.

More storms will fire up in the heat of the day on Friday across the higher terrain and there's a slight chance a few could move into the Valley in the late afternoon and evening.

Temperatures will still be sizzling hot, too. Valley highs will hover around 110 degrees heading into the weekend with overnight lows mostly in the 80s.

Excessive Heat Warnings are still in effect for areas along the Lower Colorado River Valley until Friday night. This includes Yuma. Heat index values, or "feels like" temperatures that factor in humidity, could top out near 115 in this part of our state.

As temperatures stay hot across the Valley and state, the risk for heat-related illnesses like heat exhaustion and heat stroke continues.

Limit your time outside, especially in the afternoon, during the day's peak heat. Stay hydrated with water and electrolyte drinks, and never leave kids or pets alone in your vehicle no matter how quick the errand.

Air quality has also been an issue this week. Ozone High Pollution Advisories are now in effect across Maricopa and Pinal counties through Friday.

People most vulnerable to the impacts of air pollution include children, older adults, adults exercising outdoors, people with heart or lung disease, and those suffering from asthma and bronchitis.

Exposure to ozone can increase the number and severity of asthma attacks, cause or aggravate bronchitis or other lung disease, and reduce the body's ability to fight infection.

All of us can help prevent the pollution problem from getting worse by carpooling, using public transportation or working from home. Also, re-fuel your vehicle after dark and avoid idling in long drive-thru lines.

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2024 Rainfall totals:

Sky Harbor Official Rainfall: 4.19" (+0.56" from average)

Valley Average (Phoenix Rainfall Index): 3.90"

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2023 Rainfall totals:

Sky Harbor Official Rainfall: 4.21" (-3.01" from average)

Valley Average (Phoenix Rainfall Index): 5.47"

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

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PHOENIX IS GETTING DRIER - LOWER RAINFALL AVERAGES NOW

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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