Sunday, July 12, 2009

DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 0200Z July 13, 2009

S Oklahoma/N Texas/E New Mexico:
Remnant smoke from the fires in Oklahoma over the past couple of
days slowly drifted north during the day and by evening extended from
northeast New Mexico across the Texas and Oklahoma Panhandles and into
the Red River Valley near Wichita Falls Texas.

Northern California and Oregon:
A surge of aerosol has moved onshore from the east Pacific covering
northern California from the San Francisco Bay area northward. The aerosol
curled to the northeast into the northwest tip of Nevada and eastern
Oregon. It is difficult to determine the source or composition of the
plume but based on afternoon data from the Ozone Monitoring Instrument
(OMI), which detects SO2, and weather trajectories for the past few days,
it is felt that the plume is predominantly smoke from the ongoing fires
in Alaska.

British Columbia to Great Lakes:
An extensive area of aerosol was seen stretching from the northeast
Pacific to the west of Vancouver Island across much of southern British
Columbia and central Alberta. The plume then gradually narrows and
turns to the east-southeast across southern Saskatchewan, southern
Manitoba, northeast Minnesota and the Upper Peninsula and northern
Michigan. Based on the afternoon OMI data noted above, it is felt that
this plume is predominantly SO2, although it is possible that some smoke
is mixed in, especially on the western edge. OMI data can be viewed at
http://satepsanone.nesdis.noaa.gov/pub/OMI/OMISO2/index.html

Alaska/Northwest Canada:
Remnant and recent smoke from the Alaskan fires was seen over much of
southern Alaska, mainly south of the Yukon and east of Anvik (southwest
of McGrath). The smoke extends into the northern Gulf of Alaska but the
full extent is not known due to extensive low cloud cover.

Ruminski


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.ssd.noaa.gov/PS/FIRE/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.