Active Weather Alerts
Air Quality Alert
Issued: 7:22 PM Jul. 17, 2026 – National Weather Service
...AIR QUALITY ALERT IN EFFECT NOW THROUGH SATURDAY NIGHT... The Illinois Environmental Protection Agency has determined that the "Air Pollution Action Day" designation will remain in effect for the greater Chicago Metropolitan Area through Saturday night July 18th. Additionally, the ongoing "Purple Forecast Air Pollution Action Day" designation also remains in effect until midnight tonight. A Chicago area "Air Pollution Action Day" is declared when weather conditions are such that widespread ozone and or particulate levels are expected to be at or above the Unhealthy for Sensitive Groups (USG) category of the Air Quality Index (AQI) for multiple days. Ozone is expected to be the primary pollutant of concern although smoke/PM2.5 may also become a concern later in the work week. Active children and adults, especially people with pulmonary or respiratory disease such as asthma, should limit prolonged outdoor activity. Area residents are urged to reduce pollution levels. Air quality forecasts, current air quality, and tips on how you can reduce your emissions can be found at www.airnow.gov Media Contact...Illinois EPA
Dense Smoke Advisory
Issued: 2:59 PM Jul. 17, 2026 – National Weather Service
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... * WHAT...Dense smoke will reduce visibility 1 NM or less at times. * WHERE...Winthrop Harbor to Wilmette Harbor IL, Wilmette Harbor to Northerly Island IL, Northerly Island to Calumet Harbor IL, Calumet Harbor IL to Gary IN, Gary to Burns Harbor IN and Burns Harbor to Michigan City IN. * WHEN...Until 4 PM CDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
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