Twin Cities under air quality alert as extreme heat and ozone spike

An air quality alert has been issued for the Twin Cities and surrounding regions on Tuesday. The warning runs from 12 p.m. to 9 p.m., with high levels of ground-level ozone expected during this time. Residents are being advised to take precautions against poor air conditions and extreme heat. The Minnesota Pollution Control Agency has urged people to limit outdoor physical activity and avoid sources of local air pollution. Those with asthma or other breathing conditions may face difficulties and should carry their inhalers. Anyone engaging in heavy or prolonged exercise is also at risk from the reduced air quality.

High temperatures in the Twin Cities will climb to 90 degrees or above, combined with humid conditions. The alert covers the metro area, St. Cloud, Prairie Island, and Mille Lacs. Later in the day, storms are forecasted, bringing a marginal risk to the metro and an enhanced threat for northwestern Minnesota. By midweek, temperatures are expected to return to near-normal levels, with lower humidity and isolated chances of rain.

The alert remains in place until 9 p.m. on Tuesday, with health officials warning vulnerable groups to stay cautious. Cooler, less humid weather is set to arrive later in the week, easing the current conditions.