Residents of Western Washington are facing an intense heat wave this week, with temperatures expected to soar into the 90s and potentially reach triple digits. A heat advisory is in effect across the region, including notable areas like the Puget Sound, Snohomish, and Pierce counties, with peak temperatures projected for Wednesday. Additionally, drifting Canadian wildfire smoke is affecting air quality, bringing haze to the skies and further complicating the situation. Authorities have issued air quality alerts alongside heat advisories, warning of the risks associated with high temperatures and poor air quality. Cooler weather is anticipated to follow the heat wave, but until then, residents are urged to stay hydrated and limit outdoor activities.