weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Air Quality Alert


CAZ048-056-065-552-554-292100-
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
1250 PM PST Fri Nov 28 2025

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

* WHAT...The South Coast AQMD has extended 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...Saturday.

* 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.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Grand Junction CO
201 AM MST Sat Nov 29 2025

COZ001>014-017>023-UTZ022>025-027>029-300915-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
201 AM MST Sat Nov 29 2025

This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.

.DAY ONE...Today and tonight.

Wintry conditions will wind down this morning, with scattered
flurries along the Continental Divide into mid-day. Additional snow
accumulations will be negligible. Cooler temperatures settle across
the region tonight as skies clear and mountain basins drop into the
low teens and isolated single digits near fresh snowpack.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Mountain snow returns to most of our mountain passes on Sunday and
into Monday morning. This is expected to pose some travel hazards on
mountain roadways across the West Slope. Additional snow returns
midweek. Model guidance is still inconsistent on amounts and impacts.
Temperatures remain on the cool side of climatology through the
period.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.

$$

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE