Air Stagnation Advisory issued January 19 at 6:05PM PST until January 21 at 10:00AM PST by NWS Medford OR
* WHAT...For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For the Freeze Warning, sub-freezing temperatures as low as 30 expected along the coast with colder temperatures inland. * WHERE...For the air stagnation advisory this includes the Coquille Valley. For the freeze warning, this includes the South Central Oregon Coast. * WHEN...For the Air Stagnation Advisory, until 10 AM PST Tuesday. For the Freeze Warning, from 1 AM to 8 AM PST Monday. * IMPACTS...Poor air quality may cause issues
Air Quality Alert issued January 19 at 9:33PM PST by NWS Los Angeles/Oxnard CA
* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of windblown dust and ash. * WHERE...in the South Coast Air Basin. Pollution levels can vary by time and location depending on emissions and local weather conditions. * WHEN...10 AM Monday through 10 PM Tuesday. * IMPACTS...Particle pollution can get deep into the lungs and cause serious health problems such as asthma attacks, heart and lung disease symptoms, and increased risk of respiratory infections. Everyone can be affected, but sensitive groups such as people with lung or heart disease, older adults, people who are pregnant
Air Stagnation Advisory issued January 18 at 9:06PM PST until January 21 at 10:00AM PST by NWS Medford OR
* WHAT...For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For the Freeze Warning, sub-freezing temperatures as low as 30 expected along the coast with colder temperatures just inland. * WHERE...For the air stagnation advisory this includes the Coquille Valley. For the freeze warning, this includes the South Central Oregon Coast. * WHEN...For the Air Stagnation Advisory, until 10 AM PST Tuesday. For the Freeze Warning, from 1 AM to 8 AM PST Sunday. * IMPACTS...Poor air quality may cause
Air Quality Alert issued January 17 at 2:03AM MST by NWS Rapid City SD
The following message is transmitted in collaboration with the South Dakota Department of Agriculture and Natural Resources. * WHAT...Northwest winds of 25 to 35 mph with gusts around 45 mph. * WHERE...West of the Gap in Rapid City. * WHEN...Mid-morning today through this afternoon. IMPACTS...The gusty winds will suspend fine dust in the air and produce poor air quality.
Air Stagnation Advisory issued January 16 at 2:38PM PST until January 17 at 12:00PM PST by NWS Medford OR
* WHAT...Moderate to poor air quality will continue through the next few days. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...The valleys of Klamath, Lake, Jackson, Josephine and Douglas Counties. This includes the Klamath Basin and the Rogue, Illinois, Umpqua, Goose, Summer Lake and Applegate valleys. * WHEN...Until noon PST Friday. * IMPACTS...Poor and unhealthy air quality may cause issues for people with respiratory problems.
Air Stagnation Advisory issued January 16 at 12:55PM PST until January 17 at 10:00AM PST by NWS Portland OR
* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Central Willamette Valley, Benton County Lowlands, and Linn County Lowlands. * WHEN...Until 10 AM PST Friday. * IMPACTS...For the Air Stagnation Advisory, deteriorating air quality may cause issues for people with respiratory problems.
Air Stagnation Advisory issued January 16 at 2:05AM MST until January 17 at 11:00AM MST by NWS Boise ID
* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. * WHEN...Until 11 AM MST /10 AM PST/ Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
Air Stagnation Advisory issued January 15 at 3:00PM PST until January 17 at 12:00PM PST by NWS Medford OR
* WHAT...Moderate to poor air quality will continue through the next few days. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...The valleys of Klamath, Lake, Jackson, Josephine and Douglas Counties. This includes the Klamath Basin and the Rogue, Illinois, Umpqua, Goose, Summer Lake and Applegate valleys. * WHEN...Until noon PST Friday. * IMPACTS...Poor and unhealthy air quality may cause issues for people with respiratory problems. * ADDITIONAL DETAILS...A dry cold front on Thursday night and Friday morning will improve mixing conditions.