Active Weather Alerts
Severe Thunderstorm Warning
Issued: 9:27 PM Aug. 21, 2026 – National Weather Service
The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Northeastern Pima County in southeastern Arizona... Southeastern Pinal County in southeastern Arizona... * Until 315 PM MST. * At 227 PM MST, a severe thunderstorm was located 11 miles south of San Manuel, moving northwest at 5 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Redington. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...1.00 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Air Quality Alert
Issued: 8:22 PM Aug. 21, 2026 – National Weather Service
...OZONE ACTION DAY IN EFFECT UNTIL 8 PM MST THIS EVENING... The Pima County Department of Environmental Quality (PDEQ) has issued an Ozone Action Day for the Tucson Metro area until 8 PM MST this evening. This means that forecast weather conditions combined with existing ozone levels are expected to result in local maximum 8-hour ozone concentrations that pose a health risk. Adverse health effects increase as air quality deteriorates. Ozone is an air pollutant which can cause breathing difficulties for children, older adults, as well as persons with respiratory problems. A decrease in physical activity is recommended. You are urged to car pool, telecommute, or use mass transit. The use of gasoline-powered equipment should be reduced or done late in the day. For details on this Action Day, visit the PDEQ website at www.pima.gov/deq or call 520-724-6885.
Extreme Heat Warning
Issued: 8:08 PM Aug. 21, 2026 – National Weather Service
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions with high temperatures ranging between 103 to 111 degrees and low temperatures 79 to 85 degrees. Major HeatRisk is expected. * WHERE...Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, and Western Pima County. * WHEN...Until 8 PM MST Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible and drink plenty of water. &&
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