WAC007-017-019-025-047-210000-
Chelan-Douglas-Ferry-Grant-Okanogan-
Including the cities of Wenatchee, Leavenworth, Cashmere, Entiat,
Chelan, Manson, Plain, East Wenatchee, Bridgeport, Waterville,
Douglas, Republic, Inchelium, Keller, Curlew, Danville, Laurier,
Moses Lake, Ephrata, Quincy, Mattawa, Royal City, Coulee City, Omak,
Okanogan, Tonasket, Brewster, Oroville, Mazama, Winthrop, Methow,
Twisp, and Conconully
433 PM PDT Wed Aug 19 2026

An Air Quality Alert has been issued by the following agencies:

Washington Department of Ecology

An Air Quality Alert has been issued for Chelan, Douglas, Ferry,
Grant, and Okanogan Counties until further notice due to current and
expected smoke from regional fires. Particulate matter (PM2.5) may
reach Unhealthy levels for areas downwind from active wildfires. Be
sure to check air monitors in your area before outdoor activities.

When air quality is Unhealthy, everyone should reduce exposure.
Limit time outside, avoid strenuous outdoor activity, and follow tips
for cleaner indoor air.

$$

COC001-014-035-031-123-013-059-069-005-202200-
Adams-Broomfield-Douglas-Denver-Weld-Boulder-Jefferson-
Larimer-Arapahoe-
410 PM MDT Wed Aug 19 2026

...OZONE ACTION DAY ALERT FROM 400 PM WEDNESDAY UNTIL 400 PM
THURSDAY...

The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Ozone Action Day Alert.

WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties

WHEN...400 PM Wednesday August 19 to 400 PM Thursday August 20

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Ozone concentrations in the Moderate to
Unhealthy for Sensitive Groups range are expected on Wednesday and
Thursday. The highest ozone levels are most likely in the southern
and western portions of the Denver Metro area.   For Colorado air
quality conditions, forecasts, and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx   If
possible, please help us reduce ozone pollution by limiting
driving gas and diesel-powered vehicles until at least 4 p.m.
Thursday, August 20, 2026. Colorado is also addressing ozone
pollution through state policies. For more information about
health impacts and how ozone pollution forms in Colorado, visit:
https://cdphe.colorado.gov/ozone-pollution-and-your-health

HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.

$$

ORC013-031-063-065-201800-
Crook-Jefferson-Wallowa-Wasco-
Including the cities of Prineville, Post, Paulina, Madras,
Warm Springs, Culver, Enterprise, Joseph, Wallowa..Imnaha, Troy,
Lostine, The Dalles, Maupin, Shaniko, and Tygh Valley
1000 AM PDT Wed Aug 19 2026

...AIR QUALITY ADVISORY IN EFFECT UNTIL 12 PM PDT FRIDAY...

Oregon Department of Environmental Quality has issued an Air Quality
Advisory until 12 PM PDT Friday.

For the Smoke Air Quality Advisory, wildfires burning in the region
combined with forecasted conditions will cause air quality to reach
unhealthy levels.

Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems.  Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.

For additional information...please visit the Web site at
http://www.oregon.gov/DEQ

$$

AZC021-210400-

Air Quality Alert
Relayed by National Weather Service Phoenix AZ
947 AM MST Wed Aug 19 2026

...PM-10 HIGH POLLUTION ADVISORY FOR PINAL COUNTY TODAY AND THURSDAY...

The Arizona Department of Environmental Quality (ADEQ) has issued a
PM-10 High Pollution Advisory for Pinal County Today and Thursday.

An episode of strong and gusty winds is forecast to generate
widespread blowing dust that may result in local PM-10 concentrations
that pose a health risk. Adverse health effects increase as air
quality deteriorates.

Coarse particulate matter - also known as PM-10 - is an air
contaminant that can aggravate heart and lung disease conditions,
especially in older adults, children, and those with asthma. A
decrease in physical activity is recommended.

Consolidate your travel, stabilize loose soils, slow down or avoid
travel on dirt roads, reduce or eliminate fireplace use, and avoid
using gas-powered lawn equipment.

For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/WestPinal or call 602-771-2300.

$$

AZC013-210400-

Air Quality Alert
Relayed by National Weather Service Phoenix AZ
945 AM MST Wed Aug 19 2026

...OZONE HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY INCLUDING THE
PHOENIX METRO AREA TODAY AND THURSDAY...

The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area Today and
Thursday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.

You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.

$$