A heat advisory is in effect for the Portland area, with officials warning that temperatures may feel as hot as 104 degrees. The advisory period features hot conditions that raise health concerns, particularly for vulnerable groups. Alongside the high temperatures, wildfire smoke is affecting the region. The smoke contributes to hazy or smoky skies and is linked to a drop in local air quality. As a result, residents may be exposed to unhealthy or worsening conditions, depending on how smoke levels change hour to hour. Both the heat and smoke impacts are developing at the same time, meaning the strongest “feels-like” temperatures coincide with reduced air quality in Portland. Local agencies advise residents to take precautions during the hottest parts of the day and to monitor air quality conditions, especially if spending time outdoors. The duration and any updates to the advisory depend on forecasts for temperature and smoke movement.