DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 2330Z September 5, 2025
SMOKE: Western Canada/Northwestern & Southwestern CONUS... Wildfires continued to burn across western Canada and the northwestern United States. Heavy smoke was observed this evening stretching southeastward from Central British Columbia into Washington and Idaho, with a second pocket located in the Central Northwest Territories. Areas of moderate smoke extended outward from the heavy plumes covering a large portion of the Northwest Territories, the entirety of British Columbia, Washington and Idaho, and Southern Wyoming. Lighter smoke extended over Southeastern Yukon, Western Alberta, Eastern Oregon, Western Montana, and Southern Nebraska, while also dispersing eastward over the Ohio Valley and finally reaching the U.S. Mid-Atlantic and New England. Areas east of the Mississippi Valley showed moderate-to-heavy smoke concentration due to accumulation of smoke from agricultural burning across the region and the larger smoke plume originating from the Canadian wildfires. The thickest smoke was seen over the Mid-Atlantic and New England, and was moving off to the east. Southern Gulf of America... An area consisting of light smoke likely associated with gas flaring activity in the Bay of Campeche and neighboring areas inland, mixed with agricultural fire emissions in Central Mexico and the Yucatan Peninsula could be seen over the Southern Gulf of America. WS/AH THIS TEXT PRODUCT IS PRIMARILY INTENDED TO DESCRIBE SIGNIFICANT AREAS OF 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.ospo.noaa.gov/data/land/fire/currenthms.jpg Smoke data: https://satepsanone.nesdis.noaa.gov/pub/FIRE/web/HMS/Smoke_Polygons Fire data: https://satepsanone.nesdis.noaa.gov/pub/FIRE/web/HMS/Fire_Points ANY QUESTIONS OR COMMENTS REGARDING THIS PRODUCT SHOULD BE SENT TO: SSDFireTeam@noaa.gov