Monday, September 1, 2009

DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 0400Z September 2, 2009

Southern Canada/North and Central Plains/Midwest:
Remnant smoke was seen covering a very large portion of southern Canada,
the Northern Plains, most of the Midwest, and parts of the Great Lakes
region. Most of this smoke is remnant from multiple large wildfires
that have been burning in southern British Columbia over the past few
days. Smoke stretched west to east from British Columbia to south Quebec
just north of Vermont, as far north as central Hudson's Bay, and as far
south as the Central Plains where it has been mixing with the dense smoke
from the southern California wildfires.  Several areas of moderately
dense to very dense smoke were present, mostly along and north of the
US/Canadian border with one of the largeest areas of very dense smoke
northwest of Lake Superior and another over southern Alberta/southern
Saskatchewan.

Southern California to Colorado/Central to Northern and Southern Plains:
Remnant smoke continued to be pulled northeastward across the Southwestern
US by the strong upper low in place across Montana. The smoke spread out
as it reached eastern Colorado wrapping northward into the upper low and
also southeastward/southward over the Southern Plains. Most of this smoke
has originated from the large wildfires burning in Southern California
though other fires, such as those in Utah/northwest Colorado yesterday,
have contributed some smoke as well. Moderately dense to very dense smoke
extended northeastward from the UT/NV border across Colorado and then
southeastward over Kansas and Oklahoma before filtering out across the
Southern Plains and Lower Mississippi Valley. Another expansive area of
moderately dense to very dense smoke existed this evening from western
Kansas northward to the US/Canadian border in the vicinity of northeast
Montana. Again this evening, the Station Fire in southern California
has produced an enormous amount of fresh and very dense smoke, which
has been spreading out to the north and west this evening.

Pacific Northwest:
By this evening, a much larger area of remnant smoke became apparent over
Washington, Oregon, and northern Idaho. Thin smoke covered most of these
states while moderately dense smoke was observed creeping eastward from
the western side of the Cascades into central Washington and central
Oregon. Some of this smoke is from the active fires burning mostly in
Oregon over the past few days but likely remnant smoke from the British
Columbia fires has also lingered over the region.

-Sheffler

More information on the areas of smoke described above as well as others
can be found at the locations listed below.

THE FORMAT OF THIS TEXT PRODUCT IS BEING MODIFIED. IT WILL NO LONGER
DESCRIBE THE VARIOUS PLUMES THAT ARE ASSOCIATED WITH ACTIVE FIRES. THESE
PLUMES ARE DEPICTED IN VARIOUS GRAPHIC FORMATS ON OUR WEB SITE:

JPEG:   http://www.osdpd.noaa.gov/ml/land/hms.html
GIS:    http://www.firedetect.noaa.gov/viewer.htm
KML:    http://www.ssd.noaa.gov/PS/FIRE/kml.html

THIS TEXT PRODUCT WILL CONTINUE TO DESCRIBE SIGNIFICANT AREAS OF SMOKE
WHICH HAVE BECOME DETACHED FROM AND DRIFTED SOME DISTANCE AWAY FROM THE
SOURCE FIRE, TYPICALLY OVER THE COURSE OF ONE OR MORE DAYS. IT WILL ALSO
STILL INCLUDE DESCRIPTIONS OF BLOWING DUST.

ANY QUESTIONS OR COMMENTS REGARDING THESE CHANGES OR THE SMOKE TEXT
PRODUCT IN GENERAL SHOULD BE SENT TO SSDFireTeam@noaa.gov






 


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.