Long Range Outlook for the week of September 30
IDEM forecasters are pausing long range outlook discussion updates for the 2024 Ozone season as of September 30th. Forecasters will continue to issue air quality forecasts for ozone until the end of October; fine particulate forecasts are issued year-round. We plan to restart the long-range outlook discussion once the 2025 Ozone season begins in the spring.
Updated: Monday, September 30, 2024