Air Quality Alert

IDC035-049-291900-
Clearwater-Idaho-
1142 AM MDT Mon Jul 27 2026 /1042 AM PDT Mon Jul 27 2026/

...AIR QUALITY ADVISORY FROM THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY EXTENDED FOR Clearwater and Idaho Counties...

* WHAT...Air Quality Advisory because of degraded air quality due to
wildfire smoke.

Air Quality Index is forecast to be Unhealthy for Sensitive Groups.

* WHERE...Clearwater and Idaho Counties.

* WHEN...Extended until noon 7/29/2026.

* IMPACTS...Members of sensitive groups may experience health
effects. The general public is less likely to be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.

THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ`s
Lewiston Regional Office at (208) 799-4370

$$

IDZ007-311700-

Air Quality Alert Message
Nez Perce Tribe ERWM Air Quality Program
Relayed by National Weather Service Missoula MT
Issued by National Weather Service Boise ID
1040 AM MDT Mon Jul 27 2026

...AIR QUALITY ADVISORY ISSUED FOR THE NEZ PERCE RESERVATION...

* WHAT...Air Quality Advisory due to smoke from wildfires.

Air Quality Index ranging from Moderate to Unhealthy for Sensitive Groups.

* WHERE...All Areas on the Nez Perce Reservation.

* WHEN...Until 10:00 AM PDT Friday July 31.

* IMPACTS...Those who experience health effects from smoke include
  children under 18, elders, pregnant women, people with asthma
  or have difficulty breathing, diabetes, heart problems or
  otherwise compromised health, and people who have high exposure
  (those who work, exercise, or spend extensive time outdoors).

PRECAUTIONARY/PREPAREDNESS ACTIONS...
Under the most severe pollution level, sensitive groups should avoid
outdoor exposure and limit indoor activities, and everyone should
restrict their outdoor activities.

Idaho Department of Health and Welfare
https://healthandwelfare.idaho.gov/health-wellness/environmental-
health/wildfire-smoke
Idaho Smoke Information Hotline: 1-800-345-1007

&&

LAT...LON 4620 11645 4615 11620 4621 11615 4621 11607
      4623 11601 4629 11612 4641 11620 4641 11630
      4647 11637 4650 11637 4650 11645 4656 11645
      4657 11625 4614 11589 4599 11596 4612 11648

$$

IDC059-282100-
Lemhi-
853 AM MDT Mon Jul 27 2026

...AIR QUALITY ADVISORY FROM THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY FOR Lemhi County...

* WHAT...Air Quality Advisory because of degraded air quality due to
wildfire smoke.

Air Quality Index is forecast to be Unhealthy for Sensitive Groups.

* WHERE...Lemhi County.

* WHEN...Until 3:00 PM MDT Tuesday July 28th.

* IMPACTS...Members of sensitive groups may experience health
effects. The general public is less likely to be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.

THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ`s
Idaho Falls Regional Office at (208) 528-2650
Lewiston Regional Office at (208) 799-4370

$$

ORC013-021-023-031-049-059-061-063-065-069-291800-
Crook-Gilliam-Grant-Jefferson-Morrow-Umatilla-Union-Wallowa-Wasco-
Wheeler-
Including the cities of Prineville, Post, Paulina, Condon, Lonerock,
Arlington, John Day, Monument, Dayville, Long Creek, Seneca, Madras,
Warm Springs, Culver, Boardman, Heppner, Lexington, Ione, Irrigon,
Hermiston, Milton-Freewater, Pendleton, Athena, Pilot Rock,
Stanfield, Umatilla, Ukiah, Helix, La Grande, Elgin, Union,
North Powder, Enterprise, Joseph, Wallowa..Imnaha, Troy, Lostine,
The Dalles, Maupin, Shaniko, Tygh Valley, Fossil, Spray,
and Mitchell
535 PM PDT Mon Jul 27 2026

...AIR QUALITY ADVISORY IN EFFECT UNTIL NOON PDT WEDNESDAY...

Oregon Department of Environmental Quality has issued an Air Quality
Advisory until noon PDT Wednesday.

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

$$

IDC001-003-015-027-039-045-073-075-085-087-291900-
Ada-Adams-Boise-Canyon-Elmore-Gem-Owyhee-Payette-Valley-Washington-
1245 PM MDT Mon Jul 27 2026

...AIR QUALITY ADVISORY FROM THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY FOR Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette,
Valley, and Washington Counties...

* WHAT...Air Quality Advisory because of degraded air quality due to
wildfire smoke.

Air Quality Index is forecast to be Very Unhealthy.

* WHERE...Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette,
Valley, and Washington Counties.

* WHEN...UNTIL 3 PM MDT FRIDAY.

* IMPACTS...Health warnings of emergency conditions. The entire
population is more likely to be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.

THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ`s
Boise Regional Office at (208) 373-0550

$$

ORC001-025-045-291900-
Baker-Harney-Malheur-
1245 PM MDT Mon Jul 27 2026 /1145 AM PDT Mon Jul 27 2026/

...AIR QUALITY ADVISORY FROM THE OREGON DEPARTMENT OF ENVIRONMENTAL
QUALITY FOR Baker, Harney, and Malheur Counties...

* WHAT...High concentration of smoke particulates from wildfire
  smoke.

* WHERE...Baker, Harney, and Malheur Counties.

* WHEN...UNTIL FURTHER NOTICE.

* IMPACTS...Smoke can irritate the eyes, lungs and worsen some
  medical conditions. People most at risk to adverse health effects
  include infants, young children, people with heart or lung
  disease, older adults, and pregnant women.

* ADDITIONAL DETAILS...Smoke levels can change rapidly depending on
  weather. Check current conditions on the Oregon Smoke Information
  Blog, DEQ`s Air Quality Index, or by downloading the free
  OregonAIR app on your smartphone.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* Stay inside if possible. Keep windows and doors closed.

* Avoid strenuous outdoor activity.

* Use high efficiency particulate air (HEPA) filters in indoor
  ventilation systems or portable air purifiers.

* Be aware of smoke in your area and avoid places with the highest
  levels.

* If you have heart or lung disease, or asthma, follow your
  healthcare provider`s advice.

For current Oregon air quality conditions, please visit:
https://aqi.oregon.gov

For additional information, please visit:
https://www.oregon.gov/deq

$$

WAC003-007-017-019-047-065-291900-
Asotin-Chelan-Douglas-Ferry-Okanogan-Stevens-
Including the cities of Clarkston, Asotin, Anatone, Wenatchee,
Leavenworth, Cashmere, Entiat, Chelan, Manson, Plain,
East Wenatchee, Bridgeport, Waterville, Douglas, Republic,
Inchelium, Keller, Curlew, Danville, Laurier, Omak, Okanogan,
Tonasket, Brewster, Oroville, Mazama, Winthrop, Methow, Twisp,
Conconully, Colville, Chewelah, Kettle Falls, Springdale,
and Northport
1051 AM PDT Mon Jul 27 2026

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

Washington Department of Ecology
Colville Confederated Tribes
Environmental Protection Agency

An Air Quality Alert has been issued for Asotin, Chelan, Douglas,
Ferry, Okanogan, and Stevens Counties through Wednesday 11 am due
to current and expected wildfire smoke from regional fires. Areas
immediately downwind of active and emerging fires in Washington
and Oregon may reach Unhealthy levels of particulate matter
(PM2.5). When air quality is unhealthy, everyone should reduce
exposure. Limit time outside, avoid strenuous outdoor activity,
and follow tips for cleaner indoor air.

$$

IDC057-061-069-291900-
Latah-Lewis-Nez Perce-
Including the cities of Moscow, Potlatch, Deary, Genesee, Juliaetta,
Kendrick, Kamiah, Craigmont, Nezperce, Winchester, Lewiston, Lapwai,
Peck, Culdesac, and Gifford
1051 AM PDT Mon Jul 27 2026

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

Idaho Department of Environmental Quality in Lewiston
Nez Perce Tribe

...AIR QUALITY ADVISORY FROM THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY FOR Clearwater, Idaho, Latah, Lewis, and Nez Perce
Counties...

* WHAT...Air Quality Advisory because of degraded air quality due to
  wildfire smoke. Air Quality Index is forecast to be Unhealthy for
  Sensitive Groups.

* WHERE...Clearwater, Idaho, Latah, Lewis, and Nez Perce Counties...

* WHEN...Until noon July 29th (outside of reservation boundaries).
  For the Nez Perce Reservation, the Air Quality Alert remains in
  effect until 10 am July 31st.

* IMPACTS...Members of sensitive groups may experience health
effects. The general public is less likely to be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.

THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ`s
Lewiston Regional Office at (208) 799-4370

$$

IDC019-023-033-037-043-051-065-081-282100-

Air Quality Alert Message
Idaho Department of Environmental Quality
Relayed by National Weather Service Pocatello ID
1023 AM MDT Mon Jul 27 2026

...AIR QUALITY ADVISORY FROM THE IDAHO DEPARTMENT OF
ENVIRONMENTAL QUALITY FOR BONNEVILLE, BUTTE, CLARK, CUSTER,
FREMONT, JEFFERSON, MADISON, AND TETON COUNTIES...

* WHAT...Air Quality Advisory because of degraded air quality.
Air Quality Index is forecast to be Unhealthy for Sensitive
Groups.

* WHERE...BONNEVILLE, BUTTE, CLARK, CUSTER,
FREMONT, JEFFERSON, MADISON, AND TETON COUNTIES.

* WHEN...THROUGH WEDNESDAY JULY 29TH.

* IMPACTS...Members of sensitive groups may experience health
effects. The general public is less likely to be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.

THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP. FOR MORE INFORMATION, CONTACT DEQ`s
Idaho Falls Regional Office at (208)528-2650.

$$

MTC005-013-015-023-027-035-039-041-045-047-049-051-063-
069-071-073-077-081-093-099-101-281500-

Air Quality Alert
Relayed by National Weather Service Great Falls MT
843 AM MDT Mon Jul 27 2026

...AIR QUALITY ALERT IN EFFECT...

The Montana Department of Environmental Quality has issued an air
quality alert for Blaine, Cascade, Chouteau, Deer Lodge, Fergus,
Glacier, Granite, Hill, Judith Basin, Lake, Lewis and Clark,
Liberty, Missoula, Petroleum, Pondera, Powell, Ravalli, Silver Bow,
Teton, Toole, Phillips counties in effect until 9AM on 07/28/2026 An
Air Quality Alert means that particulates have been trending upwards
and that an exceedance of the 24 hour National Ambient Air Quality
Standard (NAAQS) has occurred or may occur in the near future.

Elevated particulate levels from wildfire smoke

As of 6AM on 07/27/2026, particulate levels in Havre and Malta are
Unhealthy.

As of 6AM on 07/27/2026, particulate levels in Butte, Great Falls,
Hamilton, Helena, Lewistown and Sleeping Giant are Unhealthy for
Sensitive Groups.

As of 6AM on 07/27/2026, particulate levels in Columbia Falls, Cut
Bank, Dillon, Frenchtown, Libby, Missoula and Thompson Falls are
Moderate.

When air quality is Unhealthy... State and local health officials
recommend that people with respiratory or heart disease, the elderly,
and children should avoid prolonged exertion; everyone else should
limit prolonged exertion.

When air quality is Unhealthy for Sensitive Groups... State and local
health officials recommend that people with respiratory or heart
disease, the elderly and children should limit prolonged exertion.

When air quality is Moderate... State and local health officials
recommend that unusually sensitive people should consider reducing
prolonged or heavy exertion.

For more information visit the Montana Department of Environmental
Quality at http://todaysair.mtdeq.us