FORECAST SUMMARY:
Friday, August 14th, 2020 through Monday, August 17th, 2020
OZONE: 8-Hour average Ozone concentrations will be a mix of Good and Moderate through Saturday, then Good though Monday. PM-2.5: 24-hour average Fine Particulate concentrations will be mostly Good.
FORECAST DISCUSSION
The ridge of high pressure that has brought us sun and warm temperatures during the week will finally break down and shift eastward Friday afternoon. In its wake will be a weak low pressure trough moving through the Ohio Valley and a stronger front projected Saturday night.
The weaker of the two systems could bring some convective activity, later Friday afternoon, but residual atmospheric stability from the exiting high pressure, plus the lateness of the day, will likely keep that to a minimum.
The stronger system, Saturday night, could also kick off some convective activity but likely not widespread.
Air Quality during Friday and Saturday should remain in the Good to Moderate range with the mixture of broken clouds and potential shower activity.
A good clean-out will occur behind the front, on Sunday, and the new week should start in the Good category.
EXTENDED FORECAST:
Air Quality should be Good going into next week.
Forecast updated by Jim Haywood: Friday, August 14th, 2020
Next forecast update: Monday, August 17th, 2020