Dense fog and an air stagnation advisory affect Portland and Vancouver areas, causing poor visibility and potential pollution ...
"Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen," the NWS advised.
The month of November is ending dry, cloudy, and cool across the greater Portland, Vancouver metro area Saturday.
The Portland and Vancouver metro areas are under advisories for air stagnation and dense fog, impacting visibility and air ...
Dense fog including freezing fog will reduce visibility with the potential of icy patches from heavy frost and freezing fog.
Southwest Washington and the Portland area can expect stagnant air through the weekend, according to the National Weather Service in Portland.
Because of the very calm winds expected over the next several days, the National Weather Service has issued an Air Stagnation Advisory in effect through Monday afternoon. As the ridge peaks on ...