December 7, 2017

Wildfires in California cause large amounts of smoke

The Pacific Southwest and Northwestern regions experienced large amounts of PM 2.5, mostly due to ongoing wildfires in these areas. PM 2.5 levels rose to Code Purple (Very Unhealthy) levels in the Pacific Southwest, along with Code Red and Code Orange (Unsafe and Unsafe for Sensitive Groups, respectively), as seen in AirNow's PM 2.5 map, top left. The spread of the smoke in this region can be seen in NOAA's HMS map, top right. The smoke is mostly coming from California. One of the wildfires contributing to this smoke is the Thomas Fire in California, which currently spans over 130,000 acres and counting (InciWeb). The area affected by this fire can be seen in InciWeb's wildfire map, bottom left. Some areas may be evacuated in this region as the wildfire is spreading very rapidly. The smoke from the wildfire could be seen in NASA's MODIS Terra images, bottom right, mixed in with some cloud coverage.

Posted by mglover at December 7, 2017 10:16 PM
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