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Oregon Unknown Air Quality Alert | Effective 08/19/2026 09:59

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

Colorado Unknown Air Quality Alert | Effective 08/18/2026 15:10

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 Tuesday August 18 to 400 PM Wednesday August 19 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Hot and sunny weather with light winds and limited potential for afternoon storms will allow ozone to reach

Arkansas, Mississippi, Tennessee Unknown Air Quality Alert | Effective 08/18/2026 14:46

AQAMEG The Shelby County Health Department has issued a Code Orange Ozone Health Advisory effective for Shelby County Tennessee, Crittenden County Arkansas, and DeSoto County Mississippi, including the city of Memphis that will remain in effect until sunset. This ozone health advisory is due to monitored ozone values that are unhealthy for sensitive groups. These values have exceeded the Environmental Protection Agency's federal safe health standard. The Shelby County

Oregon Unknown Air Quality Alert | Effective 08/18/2026 12:18

Oregon Department of Environmental Quality has issued an Air Quality Advisory until 1 PM 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

Oregon Unknown Air Quality Alert | Effective 08/18/2026 11:32

The Oregon Department of Environmental Quality has continued an Air Quality Advisory, which is IN EFFECT UNTIL 1 PM PDT WEDNESDAY. An Air Quality Advisory for Smoke remains in effect. Wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels at times through 1 PM PDT WEDNESDAY. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health

California Unknown Air Quality Alert | Effective 08/18/2026 10:48

* WHAT...The Imperial County APCD has issued an air quality alert due to harmful levels of ozone pollution. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels. * WHERE...the Imperial Valley. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. * WHEN...Tuesday, August 18, 2026 until 8:00 PM. The highest ozone levels typically occur in the afternoon and early-evening hours.

Georgia Unknown Air Quality Alert | Effective 08/18/2026 10:48

AQAFFC The Georgia Department of Natural Resources, Environmental Protection Division has issued a Code Orange (Unhealthy for sensitive groups) Air Quality Alert for Atlanta for Wednesday August 19. Under Code Orange conditions, the outdoor air quality is likely to be unhealthy for some people. Children, people who are sensitive to ozone, and people with heart or lung disease should limit prolonged outdoor exertion during the late afternoon or early evening when ozone concentrations are highest.

Washington Unknown Air Quality Alert | Effective 08/18/2026 10:18

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, 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.

Colorado Unknown Air Quality Alert | Effective 08/17/2026 15:10

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 Monday August 17 to 400 PM Tuesday August 18 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. A decreasing threat for showers and thunderstorms along with very warm temperatures will result in

Alaska Unknown Hydrologic Outlook | Effective 08/17/2026 13:01

ESFAFG ...Locations Impacted... Upper Koyukuk Valley-Central Interior-South Slopes Of The Central Brooks Range-Lower Koyukuk Valley-Middle Yukon Valley Areas of up to 2 inches of rainfall are expected from the ongoing event which may cause significant rises in the smaller headwater streams that feed the Koyukuk and Middle Yukon Rivers. As mainstem rivers are currently low, there are no concerns for the larger rivers in the area. Rainfall rates are expected to decrease by Tuesday afternoon.
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