Monday, July 31, 2006

THROUGH 1430Z July 31, 2006.

Northern California/Pacific Northwest/Idaho/Montana/Southern
Alberta/Southern Saskatchewan:
Several large fires have been burning through the night and have left
a broad area of smoke across much of the region. The smoke is mainly
moving to the east except for southeast Oregon where it is moving to the
northeast. The smoke thins out as it becomes further removed from the
source fire but there are several areas where the smoke is dense. Dense
smoke was seen over parts of Humboldt, Trinity and Siskiyou counties and
near the confluence of Mendocino, Glenn and Lake counties in northern
California, especially in the valleys. Smoke from the fires in these
areas was also seen moving across south central into east central Oregon
and this smoke was moderately dense. Locally dense smoke was also over
northern Deschutes and western Jefferson counties Oregon.

A large fire in Okanogan county Washington has produced dense smoke on the
east slopes of the Cascades and in the valleys of the county. Moderately
dense smoke extends east from the fire across the northern tier of
counties in Washington and Idaho and reaching the Continental Divide.

A fire in Glacier National Park east of the Continental Divide was
producing a narrow plume of smoke extending 250 km to the east to
southeast Hill county.

A narrow plume of thin smoke was seen drifting down the northern
California coast between Mendocino county and the Bay area. The origin
of the smoke is not certain but is likely from the massive fires that
have been burning in Russia.

The Dakotas/Nebraska/Colorado:
Numerous large fires continue to burn in the Nebraska Panhandle and
have produced a large area of moderately dense to dense smoke over
the region. The smoke covers the northeast quarter of Colorado, the
entire Nebraska Panhandle the western half of South Dakota and much of
North Dakota. The smoke over the Dakotas is mixed with cloud cover and
gradually thins out in northern sections. The smoke is swirling in a
clockwise direction centered over the central Nebraska Panhandle.

Alaska/Northwestern Canada:
Cloud cover over most of Alaska this morning is hindering smoke detection
across the state. There does appear to be an area of thin smoke over
the southwest Yukon Territory. Relatively clear skies over the western
Northwest Territory reveal little in the way of significant smoke,
although some very thin smoke is possible over the northwest portion of
the Territory. The source region for this smoke could not be definitely
determined, but it is most likely detached smoke from the cluster of
fires burning around Great Slave Lake as well as from a few around Great
Bear Lake.

Central and Southern Plains:
An area of thin smoke was seen extending from central Oklahoma north
northeast across eastern Kansas and eastern Nebraska. This smoke was
likely from fires that were burning last evening in central Texas.

Eastern Gulf of Mexico/Florida/Western Atlantic Ocean:
A broad area of moderately dense haze which is likely primarily Saharan
dust was seen stretching across the central Gulf of Mexico, from about 90W
eastward and south of 28N, the Florida peninsula and the northern Bahamas.

An area of mixed haze and smoke covers much of the Carolinas, Virginia,
Maryland, Delaware and New Jersey and extends eastward into the Atlantic
mainly between 37N and 40N. This is likely a mix of haze from the
stagnant airmass over the region and remnant smoke from the Western
wildfires that has settled in over the region.

New England/Quebec:
An area of thin smoke was observed stretching from northwest to southeast
from James Bay across southern Quebec and into New England and the Gulf
of Maine. This smoke originated from the Western wildfires.



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.