Arizona Weather Force has issued a Severe Thunderstorm Watch and Thunderstorm Watch, effective Monday-Tuesday, July 21st-22nd, 2025, for the following zones; This is a direct hit on Tucson, which means the monsoon rainfall numbers at the airport will be going up.
Issued Zones: Pima, Pinal, Maricopa, Yavapai County, Santa Cruz, Cochise, and Gila County … Mogollon Rim … Flagstaff to Grand Canyon … Western half of Graham County … Winslow/Snowflake/Holbrook
Date Issued: July 21st, 2025 at 9:30am PDT
Discussion: Instability is developing once again across Arizona. Severe Thunderstorms will be expected in Southeastern Arizona as a result this afternoon and evening. The flow is out of the south, which means outflow from them will affect Pinal County later in the period. There is a mid-level dry-line in place for Phoenix, Prescott, and the high terrain zones early Tuesday morning before and at sunrise, which will be a wake-up call for some of you. will also be expected across the White Mountains, north into the Snowflake/Winslow forecast zones as well. Disorganized pop-up storms will be likely for most of Navajo/Apache County, even if you are not in a shaded zone. The green shade is for more organized focus spots.
More storms in Southeastern Arizona will be expected for your Tuesday.
Due to the dryline aspect today and tomorrow cutting off over Central Maricopa County, none of Western Arizona will have storms.
A Severe Thunderstorm Watch is issued at Arizona Weather Force when conditions are possible for severe thunderstorms, covering over 50% of the watch zone, with damaging winds of over 50 mph and large hail in the stronger storms. Severe Thunderstorm Watches at Arizona Weather Force are private, issued ahead of time to the public by AZWF as the lead-time is extremely important to you.
A Thunderstorm Watch is issued at Arizona Weather Force when conditions are possible for thunderstorms, covering 50% of the watch zone. Thunderstorm Watches at Arizona Weather Force are private, issued ahead of time to the public by AZWF as the lead-time is extremely important to you.
Raiden Storm
Master General Meteorologist