DESCRIPTIVE TEXT NARRATIVE FOR SMOKE/DUST OBSERVED IN SATELLITE IMAGERY
THROUGH 2330Z September 11, 2025
SMOKE: Western Canada/Pacific Northwest... Wildfires continue to burn across western and northern Canada and the Pacific Northwest today. The smoke from these fires was seen moving in multiple directions. The thickest smoke, emanating from fire in southern British Columbia, was drifting northeastward while also settling in many of the valleys of the mountainous terrain in southern British Columbia. Smoke from southern BC, coupled with smoke from fores in Washington State, northern Idaho, and far western Montana, was observed extending southward along the Pacific Coast as far south as Los Angeles before curving back ashore and moving over the deserts of southern California and southern Nevada. Meanwhile, smoke from BC, coupled with smoke from wildfires burning in the Northwest Territory, northern Alberta, and central Saskatchewan, was also seen moving east-southeastward then eastward across central Canada and over Hudson Bay. Smoke of the smoke is analyzed as thick over central Canada, but much of the observed smoke was more moderate in density. Active smoke emissions across northern Alberta were moving north until a wind shift began moving smoke east-northeastward, as had been the case for smoke from fires in west-central Saskatchewan all afternoon. Remnant smoke had been observed as far east as the Maritime Provinces of eastern Canada. California… The Garnet fire in California continues to burn and emit moderate to thick smoke. The smoke was moving northward as far as Lake Tahoe with some smoke also settling in the far eastern San Joaquin Valley moving west-northwestward. Southeastern United States/Mississippi Valley… Widespread agricultural fire activity was observed across the Southeastern United States and Mississippi Valley contributed to an area of light density smoke plumes that were moving southeast to southwest. Some residual smoke from yesterday’s agricultural burning activity and a small amount moving southeast from Canadian wildfires . Central United States… Widespread agricultural fire activity was observed across Oklahoma, Kansas and western Missouri contributed to an area of light density smoke plumes that were moving northward. 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