FORECAST SUMMARY:
Monday, December 7th, 2020 through Monday, December 14th, 2020
PM-2.5: 24-hour average Fine Particulate concentrations will be a mix of Good and Moderate during through the forecast period.
FORECAST DISCUSSION:
I am expecting a mixture of Good and Moderate readings throughout the work week. We start the week under a dome of stagnant air with no significant changes until the weekend. Fortunately, the Moderates we are seeing are fairly low.
The latest model runs have trended toward warmer temperatures beginning midweek. An expanding high pressure ridge will cause temperatures to rise above normal by Wednesday with chances for precipitation beginning Friday. This will also contribute to frequent Moderate levels, especially in the southern half of the state.
I see a weak front during Thursday but with little support for a total atmospheric cleanout. The most significant weather event I see, during the forecast period, is a cold front during the day on Saturday which should clean up the atmosphere for the rest of the weekend.
EXTENDED FORECAST:
Air Quality should again be Good to Moderator going into next week.