DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 1530Z September 11, 2005
Mid-Atlantic region to the Great Lakes region and middle/lower Mississippi Valley: The large mass of smoke from active fires earlier this week in Idaho and Montana has apparently become trapped in weak flow under a sprawling ridge of high pressure over the Northern and Central portion of the US extending eastward into the Mid-Atlantic states. Morning visible imagery shows the thickest density smoke oriented from northern Louisiana through Arkansas and eastern Missouri. The smoke then becomes oriented southwest to northeast and covers eastern Iowa/eastern Minnesota all of Wisconsin/Illinois/Indiana and most of Michigan. A much thinner area of smoke extends from the above mentioned axis eastward through Kentucky and Tennessee before it becomes nearly indistinguishable on satellite imagery on the western banks of the Appalachians. Ontario/Quebec Provinces of south central and southeast Canada: The highest density smoke plume continues from Lake Superior and northern Lake Huron and extends through the southeastern portion of Ontario and into far southwest Quebec. Clouds from weather system over southern Hudson Bay have obscured any smoke that exists northeast of there. Hanna