West Michigan Clean Air Coalition

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11/2/2020 Forecast Update

FORECAST SUMMARY:

Monday, November 2nd, 2020 through Monday, November 9th, 2020

PM-2.5: 24-hour average Fine Particulate concentrations will range from Good to low Moderate through the forecast period.

FORECAST DISCUSSION:

A beautiful fall week is setting up with generally sunny skies and warming temperatures. Before then, cool westerly winds persist Monday into Tuesday keeping fine particulate Good. As high pressure at the surface and upper levels builds south then east of the region, southwest winds develop bringing in warmer temperatures. Highs past mid-week are expected to reach the 60s across most of the state. The southwesterly flow should be strong enough to hamper a significant rise in fine particulate in the long term.

The best chance at seeing Moderate fine particulate this week will be towards the end of the week in the east/southeast. However, daily levels ranging higher than low to middle Moderate are not anticipated.

EXTENDED FORECAST:

Extended forecast models show the next storm system approaching the state early next week; late Sunday/early Monday. Until then, warmer conditions continue and fine particulate during the weekend and early next week should range from upper Good to low Moderate.

Forecast Updated by Stephanie M. Hengesbach November 11th, 2020.
Next forecast update: Monday, November 9th, 2020