On June 24, 2003, the Sea-viewing Wide Field-of-View Sensor (SeaWiFS) saw thick haze (perhaps smoke from Canadian fires) along the eastern seaboard of the U.S. The haze is being concentrated around a low pressure center offshore.
Image courtesy the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
On June 26, 2003, SeaWiFS captured this image of Code Red Air (haze and pollution) over most of the U.S. East Coast. Terra MOPITT observations reveal high levels of carbon monoxide.