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Smoke over the Pacific Northwest
This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science. However, more recent observations and studies may have rendered some content obsolete.
Fires in British Columbia smothered parts of that province as well as Washington state with thick smoke on August 19, 2009. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this true-color image the same day.
Near the top edge of the image is a cluster of red dots—hotspots where MODIS detected unusually warm surface temperatures associated with wildfires. From these fires, smoke blows toward the southeast, and another thick plume hovers over Vancouver Island in the southwest. Both the island and city of Vancouver are almost completely hidden by thick smoke. Skies also appear smoky over Seattle, and visible smoke travels as far as Spokane.
Fires had been burning in British Columbia since early August 2009. According to the U.S. Air Quality “Smog Blog,” moderately dense to dense smoke covered parts of northern Washington, Idaho, and southern British Columbia on August 19.
Besides a thick haze of smoke, this image also captures a dramatic change in land cover in Washington state, changing from densely vegetated near the Pacific Coast to sparsely vegetated on the Columbia River Plateau near the Idaho border.
Acquired August 19, 2009, this true-color image shows thick smoke from fires in southern British Columbia clouding skies over Vancouver, Seattle, and Spokane. The image also shows a dramatic transition in land cover between eastern and western Washington.