FORECAST SUMMARY:
Monday, June 22nd, 2020 through Friday, June 26th, 2020
OZONE: 8-Hour average Ozone concentrations will be mostly Low Moderate to Moderate on Monday, then generally Good to Low Moderate through the remainder of the work week.PM-2.5: 24-hour average Fine Particulate concentrations will be mostly Good through the week.
FORECAST DISCUSSION:
Last week, we experienced more USG readings across the state than all of 2019, combined. Any help that the lockdowns may have had, earlier in the ozone season, appear to have disappeared.
Fortunately, this week should be a reprieve from the poor Air Quality of last week. Although we remain in the same air mass during Monday, clouds and shower potential should keep monitor values mostly in check. I expect Moderates will still rule the day while we remain in this same stagnant air mass. The reprieve will finally come Tuesday morning with a passage of a cold front which will usher in new cooler and cleaner air mass.
This cooler and cleaner air mass will provide daily highs in the 70’s for most of the remainder of the work week and vastly improved Air Quality over last week. However, since we are in that time of the year with the longest daylight hours and strongest solar radiation, this forecast will be updated on Friday.
EXTENDED FORECAST:
Air Quality should remain Good to Low Moderate into the weekend.
Forecast updated by Jim Haywood: Monday, June 22nd, 2020
Next forecast update: Friday, June 26th, 2020