Monsoon storms bring heavy rain, localized flooding, and safety alerts across the region
Category: Local News
Southern Arizona is currently grappling with severe weather as monsoon storms sweep through the region, prompting multiple warnings from the National Weather Service. With damaging winds, heavy rainfall, and the risk of flash flooding, residents are urged to remain vigilant and heed safety advisories.
As of July 12, 2026, a Severe Thunderstorm Warning was issued for Pima County, Pinal County, and Santa Cruz County, valid until 9 PM MST. Meteorologists forecast strong to severe storms that could produce damaging winds of up to 70 mph, along with lightning, hail, and blowing dust concerns. The National Weather Service also has a Blowing Dust Advisory in effect for these areas, which will remain active into the evening.
Flooding concerns are prevalent, especially as rainfall accumulates. Reports indicate that between 1 and 3 inches of rain fell across parts of the Tohono O'odham Nation on Sunday evening, and minor flooding in low-lying areas is expected to persist into the early morning hours of July 13, 2026.
Thunderstorms are expected to produce heavy rain, particularly south of the Tucson metro area, with some storms potentially yielding over 0.50 inches of rain. The National Weather Service cautions that flash flooding could occur in urban areas, on highways, and in low-lying regions. Locations such as Tucson, Tanque Verde, and Saguaro National Park East are under increased threat.
At 3:57 PM MST on July 12, a Flash Flood Warning was issued for East Central Pima County, valid until 7 PM MST. Doppler radar indicated that thunderstorms were already producing heavy rain, with up to 1 inch having fallen and an additional inch possible. The warning highlights the urgency of the situation, stating, "Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles." This warning serves as a reminder of the dangers associated with flash flooding, particularly in Arizona's desert terrain, which is prone to rapid runoff.
Looking ahead, storm chances are expected to decrease on Monday, July 13, but rain and storm activity will continue, albeit with less severity. The 7-day forecast indicates that most days will have around a 40% chance of storms. The most promising chance for storms after July 12 is on Friday, July 17, when a 70-80% chance of rain is predicted.
Temperatures throughout the week are also expected to cool slightly, hovering around the low 90s. This drop in temperature may provide some relief from the oppressive heat that often accompanies monsoon season.
As the storms continue, residents are urged to take safety precautions seriously. The National Weather Service's warnings stress that even small amounts of rainfall can lead to dangerous flash floods in the desert. It does not take much water to trigger flooding events, as just an inch of rain or less can overwhelm drainage systems. The combination of intense rainfall and the region's topography can lead to sudden and violent flooding, making it imperative for residents to stay informed and prepared.
Specific locations in the area that are prone to flooding include Harrison Rd at Pantano Wash, Agua Caliente Wash, and Wentworth Rd at Tanque Verde Wash. Residents are advised to avoid these areas during heavy rains and to monitor local forecasts closely.
The impact of these storms has already been felt across Southern Arizona. Tucson Electric Power crews reported progress in restoring power after Saturday night's storms affected over 8,000 customers. By late Saturday night, only about 100 customers remained without power, a sign of the efforts made to address outages caused by the severe weather.
In addition to power outages, the storms have led to road closures due to flooding. Residents are reminded to heed warnings and road closures, particularly in areas that are known to experience flooding during heavy rains. The National Weather Service has reiterated the importance of not attempting to drive through flooded roads, emphasizing that "most flood deaths occur in vehicles."
As the monsoon season continues, the community is encouraged to stay alert and prepared for changing weather conditions. Safety measures include having an emergency plan in place, staying updated on weather alerts, and avoiding travel during severe weather events.
With the monsoon season still in full swing, residents of Southern Arizona should remain vigilant. The National Weather Service will continue to monitor conditions and issue warnings as necessary. The next major storm system is anticipated on Friday, July 17, which could bring additional heavy rain and flooding risks.
As always, the community's safety is the top priority. Residents are encouraged to report any flooding or dangerous conditions to local authorities and to follow all safety advisories issued by the National Weather Service. The monsoon season is a time of both beauty and danger, and being prepared can make all the difference.
Stay safe and informed as Southern Arizona navigates through this active weather period!