Tag: 10:18pm

Official

Freezing Fog Advisory issued December 4 at 10:18PM PST until December 5 at 11:00AM PST by NWS Portland OR

* WHAT...For the Freezing Fog Advisory, visibility one quarter mile or less in fog and freezing fog. For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions. This scenario could result in the build up of air pollutants over time. * WHERE...South Willamette Valley. * WHEN...For the Air Stagnation Advisory, until 4 AM PST Saturday. For the Freezing Fog Advisory, until 11 AM PST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous. With temperatures at or just below