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  Storm Center: Weather Alerts: Warnings


 
My Location: San Francisco, CA 
 
Current Time: 08:44:03 PM PDT
Other Alerts  
Weather Alert
    Other Weather Alerts
Type Air Quality Alert

Air Stagnation Advisory
Thu Jul 31 12:54:00 PDT 2025
Thu Jul 31 13:13:00 PDT 2025
Thu Jul 31 22:03:00 PDT 2025
Issued By NWS Chicago IL
Issuing Time Fri, 01 Aug 2025 06:31:00 PDT
Broadcast Time Fri, 01 Aug 2025 06:31:00 PDT
Valid Until Fri, 01 Aug 2025 22:00:00 PDT
Brief Description Air Quality Alert
Detailed Description The Illinois Environmental Protection Agency has issued an Air Pollution Action Day for Friday August 1st for all of Illinois due to wildfire smoke. An Illinois "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 for all or almost all of Illinois. USG - Active children and adults, especially people with pulmonary or respiratory disease such as asthma, should limit prolonged outdoor activity. Unhealthy - Everyone should reduce prolonged activities or heavy exertion outdoors. Area residents are urged to reduce pollution levels. Air quality forecasts, AQI cautionary statements, current air quality, and tips on how you can reduce your emissions can be found at www.airnow.gov. Media contact. Illinois EPA.
       
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