West Michigan Clean Air Coalition

View Original

11/30/2020 Forecast Update

FORECAST SUMMARY:

Monday, November 30th, 2020 through Monday, December 7th, 2020

PM-2.5: 24-hour average Fine Particulate concentrations will be mostly Good through mid-week with levels ranging upper Good to low Moderate the rest of the forecast period.

FORECAST DISCUSSION:

A low-pressure area east/northeast of the region produces northerly winds over the state through mid-week. This system will keep snow chances in the forecast Monday and Tuesday in the southeast, and lake effect snows in the most prone west Michigan lakeshore areas. After the system pulls away, expect dry and comfortable conditions for the rest of the week.

As for air quality, fine particulate levels are expected to remain Good thanks to stronger north winds early in the week. The direction changes to the west/northwest by Wednesday keeping fine particulate Good. Lighter winds move in Thursday and Friday and readings could reach the low Moderate range at a few locations.

EXTENDED FORECAST:

Extended forecast models show a reinforcement of northerly winds for the weekend, and a possible system early next week. Even with some uncertainty in the weather conditions, fine particulate through the weekend and early next week are not expected to reach higher than low Moderate.

Forecast Updated by Stephanie M. Hengesbach Monday November 30th, 2020.
Next forecast update: Monday, December 7th, 2020