Cold Weather Advisory

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Portland OR 1208 PM PST Wed Jan 21 2026 ...AIR STAGNATION ADVISORY IN EFFECT UNTIL NOON PST FRIDAY... ...COLD WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST THURSDAY... * WHAT...For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions. For the Cold Weather Advisory, very cold wind chills as low as 20 expected. * WHERE...North and Central Coast Range Valleys of Oregon, Lower Columbia River and Cowlitz River Valleys, Clackamas County Cascade Foothills, North Clark County Lowlands, and Inner Vancouver Metro. * WHEN...For the Air Stagnation Advisory, until noon PST Friday. For the Cold Weather Advisory, from midnight tonight to 10 AM PST Thursday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems. Wind chill values and very cold temperatures can lead to hypothermia with prolonged exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable. Those planning to venture outdoors should use common sense and dress warmly, making sure exposed skin is properly covered to prevent frostbite and/or hypothermia. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.