DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 0200Z September 21, 2006
Southern California: The very large Day fire located mainly in northern Ventura County appeared to flare up once again late this afternoon as strong northerly winds fanned the fire. The flare up late this afternoon resulted in a dense area of smoke which spread mostly in a southerly direction from the fire and right across the Los Angeles metro area. Somewhat less dense smoke has spread all the way down the coast to the vicinity of San Diego by early evening. Much thinner smoke from this fire was also noted spread across the interior of southern California as well as portions of central and southern Arizona, and the northern Baja Peninsula. Northern California: Currently, high level cloudiness is making smoke detection with the Bassetts fire in central Sierra County difficult. Visible imagery from a couple of hours ago indicated moderately dense to locally dense smoke(closer to the fire source) spreading generally in a southerly direction across portions of the Sacramento Valley and the foothills of the central Sierras. As the day progressed the wind direction changed from northeasterly to northerly resulting in a more southward movement to the smoke. Farther to the northwest, a similar situation exists with the fires in southwestern Siskiyou County and northern Trinity County with change in wind direction blowing the smoke in a more southerly direction during the afternoon and early evening. Also, high cloudiness here too hindered smoke detection but earlier visible imagery did show locally dense smoke in Trinity County, thinning out as it spread southward. Southern and Southeastern US: A rather large number of fires were detected across the portion of the country stretching from eastern Texas to the Carolinas. Approximately 2 dozen of those were emitting visible smoke plumes although most of them were of the thin to locally moderately dense variety and relatively short lived. A bit farther to the west in McCulloch County of central Texas a fire was producing a fairly significant moderately dense to even locally dense smoke plume which traveled in a northerly direction to nearly 150 miles from its source. JS