Saturday February 24, 2007

DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 2315Z February 24, 2007

Smoke:
North Carolina:
A very large fire is producing dense smoke in far eastern Carteret county
in the Cerder Island N.W.R.  A small fire across the South River from
the town of South River in Carteret produced thin to moderately dense
smoke that joined the main plume.  The plume extended SSE over 207km from
the source or 200km into the Atlantic. The plume was on average 31km,
but has been becoming more diffuse particularly over the last 2-3hrs
near the source region...though the initial burst is still quite dense.

A fire east of Camp LaJune in Onslow county produced light to thin
smoke that moved SE offshore about 115km. This has mixed a bit with a
secondary thin smoke plume from a fire on the western side of Camp LaJune
(west of New Inlet).

South Carolina:
A fire near Johnsville in Colleton county has produced a moderately dense
puff of smoke that can be seen below the increasing cirrus.  This smoke
was moving due North with a slight bend toward the NNE and extends 39km
from the source near Bowman in Orangeburg county.

Dust/Sand:
Texas/Oklahoma/W. Arkansas

A vigorous deepening cyclone is progressing across W Ok into SE KS today
with very strong westerly jet streak that has mixed downward to the
surface, and subsequently produced a large area of dense sand/dust. The
main source regions today have been the loose/dry soils of the southern
cap rock in Gaines/Terry/Dawson/Martin/Howard/Borden counties. The
sand storm extends in a 200km wide plume from the source to the
Bosque/Coryell/McLennan region of central TX under 20-30 mph winds. The
dense plume then bends toward the NE (under strong Swly winds behind the
dryline) to SW OK into McCurtain county and thins down to about 115km
wide, though a larger 75km wide area of thin sand can be seen west of
the line particularly in OK.  Though the entire plume is translating
toward the East as a whole...the last leg of the plume extends from
McCurtain county along the OK/AR boarder as far north as the main upper
level cyclone center near Miami (with a little wrap back toward Tulsa).
This section is only 83km wide but is moving very quickly eastward
into AR.

The plume will continue to progress into N LA around sunset.  Nighttime
detection is a bit more difficult...without visible imagery, but one
can load channel 2 imagery (3.9 um wavelength) and track it overnight
considering the high density.

Gallina

 


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.