FORECAST SUMMARY:
Monday, October 19th, 2020 through Monday, October 26th, 2020
OZONE: 8-hour average Ozone concentrations are expected to be Good through the period.
PM-2.5: 24-hour average Fine Particulate concentrations will range from Good to low Moderate at times.
FORECAST DISCUSSION:
An active weather pattern is setting up this week as disturbances moving through keeps on and off precipitation in the forecast. Temperatures will be cool enough for precipitation to change to snow at times, especially further north. Cooler temperatures will exist through mid-week, then expect a warmup Thursday and Friday. This will be short-lived; however, because readings will fall after the passage of a stronger cold front late Friday.
Without a decent period of stagnation this week, both ozone and fine particulate are expected to remain generally Good. The best chance at seeing some low Moderate fine particulate I feel will be early Tuesday and maybe again early Thursday. Otherwise, I feel like the daily averages of fine particulate will remain mostly Good.
EXTENDED FORECAST:
Extended forecast models show high pressure moving in Sunday with yet another system bringing precipitation late Sunday/Monday. Aside from a few low-Moderate fine particulate concentrations in the south, pollution levels early next week should continue in the Good range.