5/3/2021 Forecast Update
FORECAST SUMMARY:
Monday, May 3rd, 2021 through Monday, May 10th, 2021
OZONE: 8-Hour average Ozone concentrations are expected to be Good through the forecast period.
PM-2.5: 24-hour average Fine Particulate concentrations should be mostly Good with a few periods of low Moderates possible.
FORECAST DISCUSSION:
After a warm Sunday across much of the state, cooler temperatures along with cloudy skies and chances for precipitation are in the forecast through Tuesday. High pressure dries conditions out Wednesday, but cooler temperatures stick around. Slight chances for precipitation exist Thursday and/or Friday as weak disturbances tracks near the region.
As for air quality, Good fine particulate and ozone is anticipated most of this week thanks to clouds and cooler temperatures. Sunshine returns Wednesday, but northerly winds keep both surface and upper levels cool not allowing pollution to develop. A mix of clouds and sun, along with slight chances for showers end the workweek, but again, northerly winds and cooler temperatures should keep pollution levels generally Good.
EXTENDED FORECAST:
Extended forecast models show high pressure on Saturday with dry conditions and slightly warmer temperatures. This may be short-lived, however, because the next system brings precipitation back in the forecast Sunday into Monday. Fine particulate could reach low-Moderate Saturday, otherwise, pollution levels should be Good through early next week.