DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 0345Z July 21, 2011
Central and Eastern Canada: A large moderately dense to very dense smoke plume extends from eastern Manitoba through western and central Ontario to extreme southern Quebec into New York and New England and into the offshore waters of New England and the Northern Mid Atlantic. The smoke was visible this morning; however, throughout the day, cloud cover began to dominate the area. It is believed that the source of this smoke, the numerous wildfires in western Ontario, continued to produce smoke throughout the evening even though it was not visible on satellite imagery. Central Utah/Nevada: An area of light smoke moved eastward across central Utah this morning and early afternoon. This is believed to be remnant smoke from the fire that is currently burning in central California. During the evening hours, another area of light smoke was visible in portions of central and eastern Nevada north of Las Vegas. Central Plains/Ohio River Valley/East Coast: The ridge of high pressure dominating the country that is causing the heat wave is also allowing pollution and other aerosols to circulate. Haze and other aerosols were visible this evening rotating around an area of high pressure centered over IL/IN. In addition to this, the frontal boundary crossing through the Dakotas and Minnesota this evening pushed aerosol to the east. This boundary was clearly visible in satellite imagery tonight. Myrga THIS TEXT PRODUCT IS PRIMARILY INTENDED TO DESCRIBE SIGNIFICANT AREAS SMOKE ASSOCIATED WITH ACTIVE FIRES AND SMOKE WHICH HAS BECOME DETACHED FROM THE FIRES AND DRIFTED SOME DISTANCE AWAY FROM THE SOURCE FIRE..TYPICALLY OVER THE COURSE OF ONE OR MORE DAYS. AREAS OF BLOWING DUST ARE ALSO DESCRIBED. USERS ARE ENCOURAGED TO VIEW A GRAPHIC DEPICTION OF THESE AND OTHER PLUMES WHICH ARE LESS EXTENSIVE AND STILL ATTACHED TO THE SOURCE FIRE IN VARIOUS GRAPHIC FORMATS ON OUR WEB SITE: JPEG: http://www.osdpd.noaa.gov/ml/land/hms.html GIS: http://www.firedetect.noaa.gov/viewer.htm KML: http://www.ssd.noaa.gov/PS/FIRE/kml.html ANY QUESTIONS OR COMMENTS REGARDING THIS PRODUCT SHOULD BE SENT TO SSDFireTeam@noaa.gov