Near-Record Heatwave Scorches Tucson and Southern Arizona Through Monday

Parts of Southern Arizona will be under an excessive heat warning through Monday, with temperatures in the Tucson metro area potentially reaching up to 114 degrees. Meanwhile, Phoenix and the western deserts could see temperatures as high as 118 degrees.

The excessive heat warning is set to remain in effect for Tucson and much of Southern Arizona until Monday night, while Phoenix and Western Arizona will experience the warning through Tuesday night.

High temperatures exceeding 100 degrees are expected across various regions, including the Tucson metro area, the Upper Santa Cruz River Valley, Phoenix metro area, and Arizona’s central deserts extending to Yuma, according to the National Weather Service.

Forecasters noted that temperatures might approach record levels in some locations due to a high-pressure ridge moving from Northern California northward into Utah. This weather pattern will bring hot daytime temperatures and a mild monsoon through early next week, with deeper moisture anticipated mid to late next week.

While above-average high temperatures will persist, there is a chance that monsoon rains could return towards the end of next week, offering some respite from the heat.

The extreme heat is expected to significantly increase the risk of heat-related illnesses. Forecasters advise taking extra precautions if spending time outdoors, such as rescheduling strenuous activities to early morning or evening hours. Being aware of the signs and symptoms of heat exhaustion and heat stroke is also crucial.

Daytime temperatures will range from 105 to 110 degrees, posing a significant risk of heat-related illnesses, especially for those working or participating in outdoor activities.

Officials recommend drinking plenty of fluids, staying in air-conditioned rooms, avoiding sun exposure, and checking up on relatives and neighbors to ensure their well-being during the heat wave.

They emphasized the importance of taking precautions this weekend for anyone planning outdoor activities. The National Weather Service cautioned against leaving young children and pets unattended in vehicles, as car interiors can rapidly become lethally hot.

Research from San Francisco State University conducted in 2003 revealed that on a 95-degree day, a vehicle’s interior temperature can soar to 114 degrees and reach 140 degrees in under an hour, even with windows slightly open.