Thursday, September 28, 2006

THROUGH 0200Z September 29, 2006

Arizona/New Mexico/Western Texas:
The leftover thin area of smoke described earlier today in this product
has drifted farther to the south and covers far southern Arizona, southern
and eastern New Mexico, and the western Texas panhandle including the El
Paso area. This smoke likely originated from the Ventura County fires
in southern California as well as some contribution from the fires in
southern Coconino County of north central Arizona and Yavapai County of
central Arizona. Further contribution from a fire in northern Baja is
also possible. The smoke was barely discernible in visible imagery this
evening. A handful of fires across north central and central Arizona
including the counties of Coconino and Yavapai were emitting moderately
dense to locally dense smoke closer to the actual fires. The smoke was
generally moving off to the southeast and was affecting Flagstaff.

Rather widespread cirrus cloudiness spreading across California was
creating some difficulty for delineating areas of smoke this evening. In
fact, despite the fact that the fire over far northern Baja was active
through the day, very limited views of smoke were available due to the
cloudiness. Believe it is producing significant smoke which is likely
moving to the east-northeast, but that cannot be absolutely verified
based on satellite imagery. The clouds also made smoke detection in
the vicinity of the large Ventura County fire of southern California
difficult. A brief look at the area toward sunset as the clouds finally
parted there showed a patch of moderately dense to dense smoke apparently
moving to the northeast across Kern and northern Los Angeles Counties. The
smoke may also extend farther, but again that cannot be determined due
to the clouds.
  The detached thin smoke from the Ventura County fire which earlier in
  the day was moving northward through central California became visible
  once again late in the afternoon and early evening across central and
  even northern California where it merged with smoke being produced by
  the northern California fires. As for the northern California fires,
  dense smoke was still being produced by the Siskiyou and Trinity County
  fires which was moving mainly in a northwesterly direction. A fire in
  far northern Mendocino County of northwestern California was also adding
  to the mix with its production of moderately dense to locally dense
  smoke. The smoke from the northwestern California fires thinned out
  slightly as it spread northwestward offshore and also into southwestern
  Oregon. The smoke then spread more to the east across central Oregon.
  Finally, at least 3 significant fires were detected across interior
  Oregon. Thick eastward expanding smoke plumes were observed with
  fires over southern Crook, east central Harney, and southeastern
  Morrow Counties.

Numerous fires which were primarily believed to be agricultural or control
burns were detected over southern and eastern Washington, northeastern
Oregon, and the extreme western portion of the Idaho panhandle. Quite a
few mainly thin to briefly moderately dense puffs were observed moving
east which in effect later merged to form somewhat larger patches of
smoke across the region. A bit farther to the east much larger fires
were occurring over the Idaho Panhandle and central Idaho with thick
expanding smoke plumes noted particularly with fires over southern Valley
and especially Custer Counties.



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.