DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 1600Z JULY 18, 2008

SO2 from Okmok Volcano crossing Northern US/Southern Canada:
A narrow plume of SO2 was clearely seen in early morning visible imagery
stretching east northeastward from the Pacific, entering the US along
the Washington/Oregon border and continuing across northern Idaho
and northwest Montana into southern Saskatchewan before turning east
southeast across southern Manitoba and merging with cloud along the US
border with Ontario.

Mid and Southern California:
The Basin Complex in Monterey county generated a narrow moderate plume
of smoke that was moving south.

Northern California:
The fires in Northern CA continue to produce dense smoke near the
source with moderate smoke extending northeast across Nevada and Idaho.
Additional light smoke extended much farther...over the northern Plains
and Upper Midwest into the Great Lakes.

Northwest Territories/Manitoba:
Large area of smoke of various thicknesses covered northern Manitoba and
central Northwest Territories.  The smoke was moving north and east and
with no immediate impact on the US.

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.