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Primary air pollutant in the Lewiston area:
OZONE - 16 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 10 Good
FORECAST DISCUSSION: Today, Monday, starts with foggy conditions across much of the state. Due to the stagnation and increased surface moisture, fine particulate concentrations are in the Moderate range at several central and southern locations. The fog should dissipate as the day progresses, and hourly fine particulate levels will also improve. Daily concentrations on Monday should range from upper Good north to middle Moderate south. On the weather map early this week, a storm system will track from the Southern Plain states on Monday, northeast through Minnesota on Tuesday. During this time, an associated frontal boundary lifts into the Great Lakes region. Precipitation with this boundary moves southwest to northeast through the state late Monday into Tuesday. Beyond Tuesday, the surface low north of Minnesota merges with another northern low. This combined system is expected to settle east of Michigan past mid-week. Cooler air is anticipated to settle in at that time, and some models are showing snow as a possibility with the colder air in place. Regardless of the type of precipitation, cooler conditions linger through the end of the week, along with chances for precipitation. As for air quality, moisture trapped at the surface early Monday will cause Moderate concentrations of fine particulate across the central and southern portions of the state, while readings should remain Good further north. The expected boundary lifts north of the state early Tuesday, and winds should pick up in speed from the south. Increased moisture will be in place, but stronger winds will hamper air stagnation, and fine particulate levels should not be any higher than low Moderate Tuesday. Cooler air filters in later Wednesday into Thursday as winds switch to the northwest. Fine particulate concentrations in the Good range are expected past Wednesday, lasting the rest of the workweek. EXTENDED FORECAST: Extended forecast models show chances for precipitation and cooler temperatures continuing into the start of the weekend. Fine particulate levels during this period will likely range between Good and low Moderate.
Primary Pollutant: PM2.5 - 0 Good
Primary Pollutant: PM2.5 - 0 Good
Primary Pollutant: PM2.5 - 0 Good