DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 1500Z September 1, 2025
SMOKE: Western and Central Canada/Midwestern United States... Wildfire activity continues to burn across the Yukon, Northwest Territories, southern British Columbia, and northwestern Saskatchewan. Wildfires are also likely present in Alberta as well, but are not analyzed due to thick cloud cover blanketing the province. This activity was producing a sizable area of low-level thick smoke that covers an area from central Northwest Territory into northwestern Montana and expanding southward. In southwestern British Columbia, an intense wildfire began to develop explosively overnight and is producing a pyrocumulus cloud with smoke extending both westward around a mid-level low off the Pacific Northwest coast and eastward across central British Columbia. Moderate remnant smoke was observed extending from the wildfire activity in northern and western Canada eastward to the Maritime Provinces, Greenland, and the far northern Atlantic Ocean. The full extent of smoke across central Canada is uncertain, as widespread cloud cover is obscuring the smoke plume across that region. US West Coast... Wildfires in the Sierras, far northwestern California, and west-central Oregon were observed producing moderate to thick smoke this morning at sunrise. Thick smoke from the fires in the Sierras could be seen moving north-northwestward and could be seen as far north as southeastern Oregon, while smoke from the central Oregon and northwest California fires was seen extending west-northwestward to the Pacific coast. Another fire in east-central Washington State was seen producing light smoke that was moving off toward the west-southwest. Hosley 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