FORECAST SUMMARY:
Monday, August 19th, 2019 through Monday, August 26th, 2019
Ozone: 8-Hour average Ozone concentrations will be mostly Good to Moderate during Monday and Tuesday, then mostly Good through the remainder of the forecast.
PM-2.5: 24-hour average Fine Particulate concentrations will be mostly Good.
FORECAST DISCUSSION
Monday and Tuesday will be seasonal with temperatures in the mid-to-upper 80’s with increasing humidity. High pressure builds in during Monday and should persist through Tuesday. Any chance for some creep in ozone concentrations, during this forecast period, should occur during these two days as light winds become more southwesterly during Tuesday. Although ozone is expected to begin inching up, there is no compelling evidence that we will get into the USG range during Tuesday although concentrations are expected to get up in the High Moderate range. However, the shorter days of late summer should work in our favor.
A cold front is projected to pass through the region Tuesday night into Wednesday. The cooler, dryer air mass that follows the front should keep us solidly in the Good category through the remainder of the work week. Forecasters are seeing a bit of a warm up during the weekend as winds shift around to the southeast, but nothing is indicating a buildup of ozone to anything worse than Low Moderate.
EXTENDED FORECAST:
Air Quality should be mostly Good to Low Moderate going into the next work week.