Issued on: June 1, 2026
Warm temperatures and stagnant flow associated with a weak stationary boundary will foster ozone development into the Moderate Category through midweek with metro areas and northwestern Oklahoma seeing the highest amounts. Pop-up showers and thunderstorms are forecasted across the state during evening/nighttime hours through Friday. Any area that sees one of these slow-moving storms will experience a temporary washout of ozone and particulates. Flow will switch to a stronger southerly pattern on Friday, likely pushing any remaining ozone accumulation out of the area.