Air Stagnation Advisory issued February 5 at 12:39PM PST until February 6 at 10:00PM PST by NWS Portland OR
发布日期：2026-02-05T20:39+00:00
* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Foothills of the Northern and Central Oregon Cascades, East Central Willamette Valley, Benton County Lowlands, Linn County Lowlands, and North Clark County Lowlands. * WHEN...Until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.
Dense Fog Advisory issued February 5 at 11:04AM PST until February 5 at 1:00PM PST by NWS Portland OR
发布日期：2026-02-05T19:04+00:00
* 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...Lower Columbia River and Cowlitz River Valleys, and Lane County Lowlands. * WHEN...Until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
Dense Fog Advisory issued February 5 at 7:24AM PST until February 5 at 11:00AM PST by NWS Portland OR
发布日期：2026-02-05T15:24+00:00
* 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, and Lower Columbia River and Cowlitz River Valleys. * WHEN...For the Dense Fog Advisory, until 11 AM PST this morning. For the Air Stagnation Advisory, until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
Air Stagnation Advisory issued February 5 at 7:24AM PST until February 6 at 10:00PM PST by NWS Portland OR
发布日期：2026-02-05T15:24+00:00
* 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, and Lower Columbia River and Cowlitz River Valleys. * WHEN...For the Dense Fog Advisory, until 11 AM PST this morning. For the Air Stagnation Advisory, until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
Air Stagnation Advisory issued February 3 at 9:16AM PST until February 6 at 4:00PM PST by NWS Portland OR
发布日期：2026-02-03T17:16+00:00
* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...South Willamette Valley, Foothills of the Northern and Central Oregon Cascades, Lower Columbia River and Cowlitz River Valleys, East Central Willamette Valley, and North Clark County Lowlands. * WHEN...Until 4 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.
