October 28, 2007

Smoke over much of the Western U.S.

The cold front brought clear skies and good air quality to the eastern U.S., but much of the western and part of the central U.S. is covered in light smoke. Looking at the MODIS Aqua image (left), smoke is visible over California, Oregon, Washington, Nevada, Idaho, Utah, Arizona, and Colorado, plus some over Kansas and Oklahoma. AIRNow indicated fine particle concentrations from moderate to unhealthy in the western region. The source of the smoke is remnants of the California fires as well as multiple smaller fires throughout the west.

Despite getting many of the fires under control, southern California is still experiencing quite a bit of smoke, both new and from past days. Here is a close up from MODIS.

Posted by Jill Engel-Cox at October 28, 2007 8:13 PM