FORECAST SUMMARY:
Monday, March 29th, 2021 through Monday, April 5th, 2021
PM-2.5: 24-hour average Fine Particulate concentrations are expected to be mostly Good during the week with some low Moderates this weekend.
FORECAST DISCUSSION:
High pressure starts the week with southerly winds increasing Monday into Tuesday. A cold front passing late Tuesday/Wednesday brings chances for precipitation. In the wake of the front, cooler northerly winds could trigger scattered lake effect snow showers Wednesday. High pressure builds back in, dominating weather conditions through much of the weekend.
As for air quality, Good levels start the week and increasing winds into Tuesday should allow levels to remain Good. The cold front will bring in cooler, clean air keeping fine particulate levels Good through mid-week. Northerly winds continue Thursday; however, the flow becomes calmer Friday as high settles overhead. Fine particulate Friday and Saturday could be low Moderate at some locations, mostly confined to the southern portion of the state.
EXTENDED FORECAST:
Extended forecast models show high pressure dominating through the Easter weekend, but an approaching system could bring precipitation back Monday. Southerly winds and increasing temperatures during the weekend should bring a mix of Good and Moderate fine particulate through Monday.