Monday April 5, 2010

DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 0330Z April 6, 2010

South Central Canada/Great Lakes Region:
Several large areas of thin to moderately dense aerosol believed
to be remnant smoke were seen again this evening stretching from
northern Alberta southeastward to the Great Lakes and reaching as far as
southwestern Quebec. Additional haze was seen covering many of the states
surrounding Lake Michigan but it could not be determined if smoked was
mixed in as well in these areas. Some of the smoke over the Great Lakes
region is believed to be from the large amounts of agricultural fires
that have been occurring in the Central US over the past few days, but
there is likely another unidentified source that has created much of the
smoke across south central Canada and the extreme northern US. This smoke
with unknown origin may have drifted across the Pacific Ocean from Asia.

Gulf of Mexico to Southeast US/Central US:
Optically thick haze seen over the Gulf of Mexico and southeast US
this morning is now believed to be a mixture of remnant smoke and
other aerosols. Numerous amounts of agricultural burning throughout the
southern US today caused many small smoke plumes which were congealing
with the remnant smoke already in place over the entire region. Much of
the smoke in the western Gulf is believed to have drifted northward from
fires in Mexico and a thin to moderately dense band of remnant smoke
stretched from Texas northward to Oklahoma and across the southeast
to the Carolinas. Another large piece of remnant smoke over northwest
Oklahoma, Kansas, and west Missouri was separated from the main area by
a band of clouds.

Southwestern US:
A significant area of haze was noticed in the evening visible satellite
imagery stretching along a strong frontal boundary from southern
California and northern Baja, Mexico northeastward to Colorado/southwest
Nebraska. In addition, thick blowing sand/dust was seen across part
of southeastern Arizona and southern New Mexico. It appeared as though
particles from White Sands, NM were being picked up by the strong winds
and carried to the northeast.

-Sheffler

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.