In effect from Saturday, Sep 13 2025 3:19 PM - Sunday, Sep 14 2025 3:30 PM
Issued by NWS St Louis MO
The St. Louis Clean Air Partnership has issued an air quality alert
for the St. Louis metropolitan area until 8 PM CDT this evening and
again from 10 AM to 8 PM CDT tomorrow.
An Orange air quality forecast means that maximum ozone
concentrations are expected to reach levels that pose a health risk.
Adverse health effects increase as air quality deteriorates. Ground-
level ozone is an air contaminant which can cause breathing
difficulties for children, older adults, as well as persons with
respiratory problems.
Reducing outdoor physical activity is recommended. If it is a
regularly scheduled work day you are urged to consider
telecommuting, carpooling, or utilizing public transit. Avoid
excessive idling and do not top off when refueling motor vehicles.
The use of gasoline-powered lawn equipment should be reduced or
postponed until late in the day.
For more information visit the St. Louis Clean Air Partnership at
http://cleanair-stlouis.com/
For current Air Quality Index (AQI) values visit
https://www.airnow.gov/
Areas Impacted:
Madison
St. Clair
Monroe
St. Charles
Franklin
St. Louis
St. Louis City
Jefferson
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Air Quality Alert
In effect from Saturday, Sep 13 2025 12:52 PM - Sunday, Sep 14 2025 1:00 PM
Issued by NWS St Louis MO
The St. Louis Clean Air Partnership has issued an air quality alert
for the St. Louis metropolitan area until 8 PM CDT this evening.
An Orange air quality forecast means that maximum ozone
concentrations are expected to reach levels that pose a health risk.
Adverse health effects increase as air quality deteriorates. Ground-
level ozone is an air contaminant which can cause breathing
difficulties for children, older adults, as well as persons with
respiratory problems.
Reducing outdoor physical activity is recommended. If it is a
regularly scheduled work day you are urged to consider
telecommuting, carpooling, or utilizing public transit. Avoid
excessive idling and do not top off when refueling motor vehicles.
The use of gasoline-powered lawn equipment should be reduced or
postponed until late in the day.
For more information visit the St. Louis Clean Air Partnership at
http://cleanair-stlouis.com/
For current Air Quality Index (AQI) values visit
https://www.airnow.gov/
Areas Impacted:
Madison
St. Clair
Monroe
St. Charles
Franklin
St. Louis
St. Louis City
Jefferson
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Air Quality Alert
In effect from Saturday, Sep 13 2025 1:49 AM - Sunday, Sep 14 2025 2:00 AM
Issued by NWS St Louis MO
The St. Louis Clean Air Partnership has issued an air quality alert
for the St. Louis metropolitan area from 10 AM this morning to 8 PM
CDT this evening.
An Orange air quality forecast means that maximum ozone
concentrations are expected to reach levels that pose a health risk.
Adverse health effects increase as air quality deteriorates. Ground-
level ozone is an air contaminant which can cause breathing
difficulties for children, older adults, as well as persons with
respiratory problems.
Reducing outdoor physical activity is recommended. If it is a
regularly scheduled work day you are urged to consider
telecommuting, carpooling, or utilizing public transit. Avoid
excessive idling and do not top off when refueling motor vehicles.
The use of gasoline-powered lawn equipment should be reduced or
postponed until late in the day.
For more information visit the St. Louis Clean Air Partnership at
http://cleanair-stlouis.com/
For current Air Quality Index (AQI) values visit
https://www.airnow.gov/
Areas Impacted:
Madison
St. Clair
Monroe
St. Charles
Franklin
St. Louis
St. Louis City
Jefferson
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Air Quality Alert
In effect from Saturday, Sep 13 2025 12:03 AM - Sunday, Sep 14 2025 12:15 AM
Issued by NWS New Orleans LA
The Louisiana Department of Environmental Quality is forecasting an
Ozone Advisory Day for Orleans, Jefferson, St John the Baptist, St
Charles, St Bernard, St Tammany, and Plaquemines Parishes, .
The Air Quality Index indicates that ozone will be at the Orange
level, which is unhealthy for sensitive groups. Increasing ozone
levels may cause unhealthy air quality during afternoon hours.
Active children and adults, the elderly, and people with respiratory
diseases such as asthma should avoid prolonged outdoor exertion.
Please take whatever voluntary steps you can to reduce emissions
that contribute to ozone formation. Drive less and make sure your
automobile is in good working condition. Make sure your gas cap is
tight. Wait until after 6 PM to refuel your vehicle and use gas
powered lawn equipment. More information about current air quality
and what you can do to help prevent ozone formation is available at
the D E Q website www.deq.louisiana.gov/enviroflash or by calling
8 6 6 8 9 6 5 3 3 7.
Areas Impacted:
St. John The Baptist
St. Charles
Upper St. Bernard
Coastal Jefferson
Lower Plaquemines
Lower St. Bernard
Southeast St. Tammany
Western Orleans
Eastern Orleans
Northern St. Tammany
Southwestern St. Tammany
Upper Jefferson
Lower Jefferson
Upper Plaquemines
Central Plaquemines
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Air Quality Alert
In effect from Saturday, Sep 13 2025 12:03 AM - Sunday, Sep 14 2025 12:15 AM
Issued by NWS New Orleans LA
The Louisiana Department of Environmental Quality is forecasting an
Ozone Advisory Day for East Baton Rouge, West Baton Rouge,
Livingston, Ascension, Iberville, and Pointe Coupee Parishes, .
The Air Quality Index indicates that ozone will be at the Orange
level, which is unhealthy for sensitive groups. Increasing ozone
levels may cause unhealthy air quality during afternoon hours.
Active children and adults, the elderly, and people with respiratory
diseases such as asthma should avoid prolonged outdoor exertion.
Please take whatever voluntary steps you can to reduce emissions
that contribute to ozone formation. Drive less and make sure your
automobile is in good working condition. Make sure your gas cap is
tight. Wait until after 6 PM to refuel your vehicle and use gas
powered lawn equipment. More information about current air quality
and what you can do to help prevent ozone formation is available at
the D E Q website www.deq.louisiana.gov/enviroflash or by calling
8 6 6 8 9 6 5 3 3 7.
Areas Impacted:
Pointe Coupee
Iberville
West Baton Rouge
East Baton Rouge
Northern Livingston
Southern Livingston
Western Ascension
Eastern Ascension
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Air Quality Alert
In effect from Wednesday, Sep 10 2025 11:45 AM - Monday, Sep 15 2025 12:00 PM
Issued by NWS Spokane WA
An Air Quality Alert has been issued by the following agencies:
Washington Department of Ecology
An Air Quality Alert has been issued for Chelan, Ferry, Pend
Oreille, and Stevens County until further notice due to current and
expected wildfire smoke from regional fires. Particulate matter
(PM2.5) levels may reach unhealthy levels in areas closest to active
fires and Unhealthy for Sensitive Groups elsewhere in the region.
When air quality is unhealthy, everyone should reduce exposure. Limit
time outside, avoid strenous outdoor activity, and follow temps for
cleaner indoor air.
