DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THRU 0100Z JULY 24, 2005

Central Canada to Southeastern Canada:
Cloudiness is still greatly hampering smoke detection.  However through
breaks in the clouds it is apparent that the smoke seen earlier today
and yesterday has decreased.  In particular no smoke is seen in Quebec
and the remaining smoke in Ontario is more diffuse than previously. This
smoke is believed to have originated in the fires burning in Alaska and
to a lesser extent    far western Canada.

Alaska and Western Canada:
A large, fairly dense band of smoke continues to extend from the Yukon
through central Alaska to the Bering Sea.  The smoke covers about a
third of Alaska.  Separate smaller areas of smoke are found south of
Great Bear Lake.

Western and central U.S.:
Fires in Nevada, Arizona, Utah and Colorado are less numerous tonight
and the accompanying smoke has also decreased.  There is a small area of
quasi-stationary diffuse smoke in northwestern Arizona and southwestern
Utah.  There are also two possible areas of very diffuse smoke mixed
with haze, one in eastern Utah and the other in South Dakota.

Unless otherwise indicated:

Areas of smoke are analyzed using GOES-EAST and GOES-WEST Visible satellite imagery.

Only a general description of areas of smoke or significant smoke plumes will be analyzed.

A quantitative assessment of the density/amount of particulate or the vertical distribution is not included.

Widespread cloudiness may prevent the detection of smoke even from significant fires.