Valley could see widespread storms this weekend after bout of extreme heat

Aug 16, 2023, 11:25 AM | Updated: 11:27 am

A man overlooks downtown Phoenix at sunset atop South Mountain. The Valley is under an excessive he...

A man overlooks downtown Phoenix at sunset atop South Mountain. The Valley is under an excessive heat warning Aug. 16-17, 2023, and could see widespread storms later in the week. (AP Photo/Matt York)

(AP Photo/Matt York)

PHOENIX – The thunderstorms that hit parts of metro Phoenix on Tuesday night might have been the start of an eventful stretch of local weather.

This week’s forecast calls for a bout of extreme heat, which is nothing new this summer, followed by (fingers crossed) possible widespread storms and cooler temperatures.

An excessive heat warning went into effect Wednesday morning and runs until 8 p.m. Thursday. Highs those days are expected to exceed 110 degrees.

After that, the Valley could finally see its first significant storms of what has been a feeble monsoon season.

When will Phoenix get a major monsoon storm?

“Looking at the next few days, our chances overall will be mainly pretty low, so anywhere maybe mainly around 20% or less,” Isaac Smith, meteorologist with the National Weather Service in Phoenix, told KTAR News 92.3 FM on Wednesday morning. “But we’ll start seeing those chances really ramp up as we head into this weekend.”

A tropical storm system in the Pacific Ocean southwest of Mexico is expected to move north over Baja California and into California in the coming days.

The system could result in widespread showers and thunderstorms in the Valley, Smith said.

“We will be looking at some very decent rain chances out there across the south-central Arizona area, including the Phoenix area,” Smith said. “So, we’re going to be looking at our storm chances climbing upwards of 60-70% this weekend.”

The system could also bring temperatures down, with highs below 100 possible Saturday and Sunday. Phoenix’s last day under triple digits was June 13, when it topped out at 96 degrees.

Phoenix’s official rainless streak continues

While much of central Phoenix had storm activity Tuesday night and early Wednesday, the rain missed the gauges at Sky Harbor International Airport, which the National Weather Service uses for the city’s official readings.

The airport station hasn’t detected precipitation since March 22, a streak of 146 days through Tuesday.

Phoenix’s only longer rainless streak was 160 days from December 1971 to June 1972.

KTAR News 92.3 FM’s Jim Cross contributed to this report.

We want to hear from you.

Have a story idea or tip? Pass it along to the KTAR News team here.

79° | 51°
69° and clear

Arizona News

Follow @suelenrivera...

SuElen Rivera

City of Goodyear unveils state-of-the-art Fire Station 188

The city of Goodyear held a grand opening ceremony on Thursday for the addition of its latest fire station.

44 minutes ago

(Facebook Photo/Tucson Police Department)...

Associated Press

Man already serving life sentence convicted of killing Tucson girl who vanished from parents’ home

A man already serving a life sentence was convicted Thursday of first-degree murder in the killing of another Tucson girl years earlier.

4 hours ago

A suspect who accidentally shot and killed a fellow IRS agent at a federal gun range in Phoenix was...

Danny Shapiro

Suspect indicted on manslaughter charge in death of fellow IRS agent in Phoenix

A suspect who accidentally shot and killed a fellow IRS agent at a federal gun range in Phoenix was indicted on a manslaughter charge, authorities announced Friday.

5 hours ago

Arizona will not approve new housing construction on the fast-growing edges of metro Phoenix that r...

Associated Press

Arizona Senate passes plan to manage rural groundwater, but final success is uncertain

A plan to manage rural groundwater passed the Arizona Senate amid concerns about the availability of sufficient water for future generations.

6 hours ago


KTAR Video

Video: A closer look at the alleged cover-up of Preston Lord’s fatal beating

Arizona Republic investigative reporters Robert Anglen and Elena Santa Cruz join guest host Kristin Bentz to further explain the latest developments in the Preston Lord investigation. Video: Jeremy Schnell and Felisa Cárdenas/KTAR News

6 hours ago

A sign in front of a building identifies Valleywise Behavioral Health Center – Maryvale in Phoeni...

Kevin Stone

Valleywise Health replenishing mental health care capacity after staffing setback

Valleywise Health is working to replenish its mental health care capacity after cutting back because of staffing shortages in 2022.

7 hours ago

Sponsored Articles


Midwestern University

Midwestern University Clinics: transforming health care in the valley

Midwestern University, long a fixture of comprehensive health care education in the West Valley, is also a recognized leader in community health care.


Sanderson Ford

The best ways to honor our heroes on Veterans Day and give back to the community

Veterans Day is fast approaching and there's no better way to support our veterans than to donate to the Military Assistance Mission.


Canvas Annuity

Interest rates may have peaked. Should you buy a CD, high-yield savings account, or a fixed annuity?

Interest rates are the highest they’ve been in decades, and it looks like the Fed has paused hikes. This may be the best time to lock in rates for long-term, low-risk financial products like fixed annuities.

Valley could see widespread storms this weekend after bout of extreme heat