Issued on:	August 29, 2025
Rain washed pollution from the atmosphere, so good air quality will prevail today.  Nevertheless, fine particulate may accumulate beneath the frontal inversion over the weekend.  Amid mostly cloudy skies and isolated rain showers, ozone may increase rapidly in any persistently sunny urban areas.   A series of reinforcing cold fronts will bring clean and cool Canadian air southward through next week, but the dry atmosphere may foster moderate ozone production.