Tuesday, July 18, 2006

THROUGH 1500Z July 18, 2006.

The wildfires throughout Lake and Cook counties are continuing to produce
a large area of dense smoke moving south across Lake Superior and into
north and central Wisconsin.  Additional fires are burning across the
border in Ontario just north of St Louis and Lake counties in Minnesota.
They are emitting thin plumes of moderately dense smoke.  The smoke
is just one of the contributors to the overall smoke coverage in the
central US.

Great Plains into the Ohio and Tennessee Valleys:
Remnant smoke from the massive fire in the Southwest of the past few
days is seen covering Nebraska, Kansas and northeast Oklahoma and
extending east across southwest Iowa, Missouri and northern Arkansas
and into the Ohio valley and northern Tennessee valley. The smoke thin
to moderately dense with the densest part of the plume in a narrow band
along its southern edge from southwest Kansas into Oklahoma and into
central Arkansas.

The smoke mixes with a large area of haze that covers the southern
states from east Texas to South Carolina and Kentucky and Tennessee. It
is likely that some smoke is mixed in with this area but it is felt that
haze is the primary constituent over most of this region. The area over
east Texas may be primarily smoke from a large fire in central Arkansas
that produced a large amount of smoke last afternoon and evening and
continues to burn this morning. The fire is in Perry county and there
is an area of moderately dense to dense smoke that covers much of Perry
and Conway counties.

California and Great Basin:
An area of moderately dense smoke from a fire along the Nevada/California
border in extreme southern Douglas county Nevada has produced an area
of smoke that covers parts of California just south of Lake Tahoe and
then curls to the northeast and stretches across Carson City, Storey,
Lyon and Churchill counties in Nevada. The smoke then becomes thin
and extends across northeast Nevada and into northern Utah and southern
Wyoming. Fires in central Utah are also contributing to the area of smoke
in the region but the smoke is mixed with broad cloudiness in the region.

A fire in the northern Cibola National Wildlife Refuge along the Colorado
River has a small plume of smoke that is confine to the vicinity of
the fire.

A fire in northern Chelan county Washington in the Wenatchee National
Forest near Lucerne is producing a narrow, moderately dense to locally
dense smoke plume that extends about 50 km to the south.
Fires in northeast and northwest Valley county and in central Clearwater
county in Idaho are producing local areas of mainly thin smoke confine
to the vicinity of the fires.

Several fires along mainly the western half of Fort Peck Lake are
producing moderately dense smoke plumes that are all moving to the
southeast about 175 km.

Northern Plains/southern Canada:
Smoke from the large fires around Fort Peck Lake in Montana from yesterday
has shifted east and extends from southeast Saskatchewan and southwest
Manitoba into the Dakotas and western Minnesota. The smoke is mixed with
clouds and is thin to locally moderately dense.

Great Lakes:
The large fires in the arrowhead region of Minnesota in the Boundary
Waters Canoe Area of Cook and Lake counties have produced a long plume of
dense smoke that extends south from the fires across central Wisconsin
and then curves to the east across southern Lake Michigan and central
Michigan into southern Ontario near the Bruce peninsula.

An area of mainly thin smoke extends from northeast Manitoba southeastward
across western Ontario to the north central shore of Lake Superior. This
smoke was likely produced from fires in Saskatchewan and Manitoba.

Northwest Territories:
A thin area of smoke along an east/west axis was seen across northern
Great Slave Lake. The source of the smoke is likely a couple of fires
near the southern Alaska/Yukon Territory border.



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.