National Oceanic & Atmospheric Administration: As catastrophic flooding impacts the Northeast, this week skies across the region and particularly along the central and eastern U.S. have also been affected by heavy smoke from wildfires burning across Canada that has continued to drift southward.
NOAA Satellites Monitor Severe Weather and Smoke
On Tuesday, July 18, 2023, air quality alerts were issued to nearly 70 million people across the Lower 48 states.
