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 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.
Air Stagnation Advisory issued January 15 at 3:41AM 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 7:43PM PST until January 16 at 10:00AM PST by NWS Portland OR
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...South Willamette Valley. * WHEN...Until 10 AM PST Thursday. * IMPACTS...For the Dense Fog Advisory, low visibility could make driving conditions hazardous. For the Air Stagnation Advisory, Deteriorating air quality may cause issues for people with respiratory problems.
Air Stagnation Advisory issued January 15 at 9:36AM PST until January 16 at 10:00AM PST by NWS Medford OR
* WHAT...For the Dense Fog Advisory, visibility of less than a quarter of a mile in dense fog. 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. * WHERE...Valleys in central Douglas County. This includes Roseburg, Sutherlin, Elkton, Camas Valley, Canyonville, Glendale and surrounding areas. * WHEN...For the Dense Fog Advisory, until noon PST today. For the Air Stagnation Advisory, until 10 AM PST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous. Poor air quality may cause issues for
Air Stagnation Advisory issued January 14 at 3:22PM PST until January 16 at 10:00AM PST by NWS Portland OR
* WHAT...Poor air quality due to a period of stagnant air with light winds. * WHERE...Central and Southern Willamette Valley. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
Air Stagnation Advisory issued January 14 at 12:45PM PST until January 16 at 10:00AM PST by NWS Medford OR
* WHAT...Poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...All inland valleys of southern Oregon, including but not limited to the Rogue, Illinois, Umpqua, and Klamath valleys. This includes the cities of Medford, Ashland, Klamath Falls, Roseburg, Grants Pass, Elkton, Canyonville, Cave Junction, Lakeview, Coquille, and Myrtle Point. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. * ADDITIONAL DETAILS...Strong valley inversions, very shallow mixing layers of less than 1000 feet, and calm winds