4/5/2021 Forecast Update
FORECAST SUMMARY:
Monday, April 5th, 2021 through Monday, April 12th, 2021
PM-2.5: 24-hour average Fine Particulate concentrations are expected to range from upper Good to middle Moderate through the forecast period.
FORECAST DISCUSSION:
Above normal temperatures are anticipated this week, and a frontal boundary lingering over the region keeps on and off precipitation in the forecast. The unsettled conditions will hinder any prolonged stagnation, therefore, fine particulate during the period is not expected to reach higher than middle Moderate. Better chances for precipitation exist late Wednesday into Thursday as low pressure moves into the region.
As for air quality, warmer temperatures and southerly winds keep fine particulate generally Moderate; however, areas further north that remains north of the boundary could see Good levels. Low pressure settling in on Thursday brings higher precipitation chances. This low remains over the area through the end of the week, and mostly Moderate fine particulate is expected to continue.
While hourly fine particulate concentrations could creep into the USG range for an hour or two any day during the forecast period, we anticipate the time-period to be short-lived and daily averages to remain Moderate. If we see changes to the weather conditions where we feel the daily average will reach USG, then we will submit a forecast update to detail the change.
EXTENDED FORECAST:
Extended forecast models show low pressure remaining in place through the coming weekend. Temperatures stay warmer than normal and chances for scattered precipitation continue. Moderate fine particulate will likely remain as we move into next week.