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Air Quality Alert


CAZ548-290800-
Los Angeles County San Gabriel Valley-
Including the cities of Pasadena, San Gabriel, and Pomona

110 PM PST Thu Nov 27 2025

...AIR QUALITY ALERT: MANDATORY WOOD-BURNING BAN IN EFFECT...


* WHAT...The South Coast AQMD has issued a mandatory wood-burning
  ban for residents in the South Coast Air Basin. The No-Burn rule
  bans burning wood, pellets, and manufactured fire logs in any
  indoor or outdoor wood-burning device.

* WHERE...The South Coast Air Basin, which includes Orange County
  and non-desert portions of Los Angeles, Riverside, and San
  Bernardino counties. No-Burn Day alerts do not apply to areas above
  3,000 feet in elevation, the Coachella Valley, or the High Desert.
  Homes that rely on wood as a sole source of heat, low-income
  households and those without natural gas service also are exempt
  from the requirement.

* WHEN...Midnight tonight to midnight Friday.

* IMPACTS...Particles in smoke can get deep into the lungs and cause
  health problems (including asthma attacks), increases in emergency
  room visits, and hospitalizations. No-Burn Days are needed to
  protect public health when fine particle pollution levels are
  expected to be high anywhere in the South Coast Air Basin. No- Burn
  Days are based on fine particle pollution levels that are
  forecasted for an entire 24-hour period, which may not be reflected
  in real- time air quality maps.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To protect your health, check current and forecasted air quality
levels at www.aqmd.gov or download the mobile app at
www.aqmd.gov/mobileapp. When air quality is poor in your area,
limited extended or intense outdoor activity and remain inside with
windows and doors closed. Run your air conditioner and/or an air
purifier and avoid using devices that bring in outside air like a
swamp cooler or whole house fan if you have other ways to stay cool.

Additional details for this air quality alert are available at
www.aqmd.gov/advisory. Information on the South Coast AQMD Check
Before You Burn program is available at www.aqmd.gov/cbyb.

$$

CAZ048-056-065-552-554-290800-
San Bernardino and Riverside County Valleys-The Inland Empire-
Riverside County Mountains-San Gorgonio Pass near Banning-
Orange County Coastal Areas-Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, Corona,
Idyllwild-Pine Cove, Huntington Beach, Costa Mesa, Newport Beach,
Laguna Beach, San Clemente, Santa Ana, Anaheim, Garden Grove,
Irvine, Orange, Fullerton, and Mission Viejo
1254 PM PST Thu Nov 27 2025

...AIR QUALITY ALERT: MANDATORY WOOD-BURNING BAN IN EFFECT...

* WHAT...The South Coast AQMD has issued a mandatory wood-burning
ban for residents in the South Coast Air Basin. The No-Burn rule
bans burning wood, pellets, and manufactured fire logs in any indoor
or outdoor wood-burning device.

* WHERE...The South Coast Air Basin, which includes Orange County
and non-desert portions of Los Angeles, Riverside, and San
Bernardino counties. No-Burn Day alerts do not apply to areas above
3,000 feet in elevation, the Coachella Valley, or the High Desert.
Homes that rely on wood as a sole source of heat, low-income
households and those without natural gas service also are exempt
from the requirement.

* WHEN...midnight to midnight on Friday.

* IMPACTS...Particles in smoke can get deep into the lungs and cause
health problems (including asthma attacks), increases in emergency
room visits, and hospitalizations. No-Burn Days are needed to
protect public health when fine particle pollution levels are
expected to be high anywhere in the South Coast Air Basin. No-Burn
Days are based on fine particle pollution levels that are forecasted
for an entire 24-hour period, which may not be reflected in
real-time air quality maps.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To protect your health, check current and forecasted air quality
levels at www.aqmd.gov or download the mobile app at
www.aqmd.gov/mobileapp. When air quality is poor in your area,
limited extended or intense outdoor activity and remain inside with
windows and doors closed. Run your air conditioner and/or an air
purifier and avoid using devices that bring in outside air like a
swamp cooler or whole house fan if you have other ways to stay cool.

Additional details for this air quality alert are available at
www.aqmd.gov/advisory. Information on the South Coast AQMD Check
Before You Burn program is available at www.aqmd.gov/cbyb.

For the latest air quality forecasts and information, visit the
website at aqmd.gov.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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