FORECAST SUMMARY:

Monday May 23rd, 2022, through Tuesday May 31st, 2022

OZONE:

Ozone concentrations are expected to be Good for the majority of the forecast period with Moderate concentrations expected in the latter half of the period.

PM-2.5:

PM-2.5 concentrations are expected to be Good to low-Moderate for the forecast period.

FORECAST DISCUSSION:

Temperatures return to the mid-60s and low-70s for much of Michigan this week as rain chances increase as we approach midweek.

To start off the week however, high-pressure is blanketing us providing ample sunlight and relatively light winds. As the week carries on, a Low-pressure system and associated frontal boundary impacts Michigan Wednesday into Thursday. The sunlight Michigan will be having today, Monday, and Tuesday gives way to rain and possible storms Wednesday and Thursday. Once the frontal boundary exits the area, clear skies return for Friday and for the majority of the upcoming holiday weekend. Temperatures increase as we progress through the weekend with northerly winds progressively shifting SSE as we approach Memorial Day.

In terms of air quality, although ample sunlight is expected early in the week, ozone is not expected to be an issue. This is because of the cooler temperatures and winds predominantly coming from the north. This combination will cut-off any production of surface-level ozone. Midweek rain and cloudy skies will keep ozone at bay also and the same scenario occurs later in the week as the beginning of the week with cooler temperatures and northerly winds. A warmup later into the weekend may warrant hourly Moderate Ozone, but overall 8-hour averages should be Good. PM-2.5 concentrations are expected to be light as well mainly because of the northerly winds and rain that is expected midweek. This will essentially washout any concentrations that build up from the relatively light winds early in the week.

EXTENDED FORECAST:

A warmup occurs next week as we bring in the month of June. With the warmup, Ozone concentrations are expected to increase, whereas PM-2.5 concentrations are expected to range from Good to low-Moderate. With the upcoming Memorial Day holiday, the next forecast update will be Tuesday, May 31st.

Forecast updated by: Alec Kownacki, Monday May 23rd, 2022

Next Forecast update: Tuesday May 31st, 2022