Issued on: September 15, 2026
Strong southerly winds will continue today for the western half of the state, combining with a moist airmass to limit ozone formation. Ozone concentrations will be in the Good/Green category statewide today and tomorrow, except for portions of south-central Oklahoma, where some ozone from Texas may enter the state tomorrow and raise concentrations to the Moderate/Yellow category. Moderate ozone conditions are expected to return to the state late week into the weekend, with the potential for a Sunday cold front that may improve air quality. Smoke from outside Oklahoma and ongoing in-state fires may create Moderate concentrations of particulate matter in localized areas over the next few days.