Saturday July 19, 2008
 
DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY 
THROUGH 0215Z JULY 20, 2008

SO2 from Okmok Volcano crossing Northern US/Southern Canada:
A dense but narrow plume of SO2 was clearly seen in late evening visible imagery stretching east from the Pacific across central Washington, northern Idaho, north-central Montana, central North Dakota, southeast Manitoba, central Ontario south of James Bay and into central Quebec before becoming too diffuse to detect in satellite imagery.  The plume may contain volcanic ash over portions of the US based on PIREPS.

Impact of California Fires:
Moderate to dense smoke stretched northward from the Basin Complex in Monterey County into northern California, the southern half of Oregon and extreme northwest Nevada.  An extensive area of light smoke covered the north-central Rockies, the north-central Plains and the Midwest.    


Northwest Territories/Manitoba:
Large area of smoke of various thicknesses covered much of the central Northwest Territories including portions of Hudson Bay.