August 31, 2023 at 10:11 am

Enhanced Severe Thunderstorm Watch Issued for Phoenix Metro, San Tan, Pinal, Prescott, Kingman, and Bullhead City Today Till Friday Morning


Arizona Weather Force has issued an Enhanced Severe Thunderstorm Watch in what will be the strongest monsoon push of the now late season, effective for Pinal, Maricopa, Yavapai, and Mohave County today through the overnight and into Friday morning …

An upper-level low off the California coast is bringing in tropical moisture in from Mexico, which is the monsoon flow.  This southeast to northwest flow was what was predicted last week here at Arizona Weather Force and will be around for a couple days (Reference A Below).  Given the upper divergence (lift and dynamics) of this system, colder air aloft with the lack of a strong ridge will bring fast developing thunderstorms.

Downdraft instability suggests storms will form near Tucson but maximize in intensity through Pinal County this evening before heading to Prescott later in the evening and again overnight with multiple rounds into Friday morning.  This will also go through the following Arizona Weather Force zones; Maricopa, Casa Grande, San Tan Valley, Chandler and Mesa, Phoenix Metro, New River, Surprise, Wittman, Wickenburg, Bagdad, Prescott, Chino Valley, Kingman, some of Parker/Havasu, Kingman direct, and Bullhead City.

So again, expect large hail, damaging winds, and even a tornado window with storms out of the southeast during the watch period.  Remember, if you get missed during an evening round, you will get hit Friday morning …

We will have another round on Friday, which I will take care of as this event is on-going …

Reference A Link –

Master General Meteorologist – Raiden Storm

Get these alerts over the new Android and Iphone app and/or e-mail service by becoming a full member subscriber today and never miss an update from this office.  Remember, you cannot just make an account on the app and get notifications.  You must select your zones and then go through the payment process.
Click here to learn more.