One product issued by NWS for:
Dense Fog Advisory
URGENT - WEATHER MESSAGE National Weather Service Portland OR 752 AM PST Thu Nov 12 2026 ORZ109-121900- /O.EXB.KPQR.FG.Y.0024.261112T1600Z-261112T1900Z/ Tualatin Valley- Including the cities of Hillsboro, Rockcreek, Sherwood, Tigard, and Forest Grove 752 AM PST Thu Nov 12 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Tualatin Valley. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions. && $$