| Overnight widespread thunderstorms left
clean air in Oklahoma. More
thunderstorms with rain on Friday evening will ensure good air quality for
the weekend. Cool, dry air will arrive
after the rains, but the bright sunshine and frontal inversion will foster
ozone formation in urban areas. As the
surface dries, agricultural and prescribed fires may resume in eastern
Oklahoma. Any fires may produce
locally unhealthy smoke and enhance ozone production. A broad region of moderate fine particulate
matter also may develop. Moisture will
return slowly, and widespread rain showers will develop toward the end of
next week. |