September 26, 2018

Offshore heavy smoke from northern California wildfires

Air quality was good today with the exception of Code Yellow (Moderate) levels throughout most of California likely due to the smoke from wildfires in the area (AirNow, top left).
Wildfires over northwest California and southwest Oregon were producing heavy density smoke plume that was extending offshore into the Pacific Ocean (HMS, top right). The large smoke plume as seen in the image is likely from a combination of Hirz Fire and Delta Fire in Shasta National Forest with a total fire size of over 100,000 acres (MODIS, middle left).
Fires in Wyoming, Arizona, and New Mexico were producing moderate to heavy density smoke while scattered fires throughout Oregon, Washington, and Idaho were producing light smoke. Saharan dust was also reported moving into the eastern Caribbean Sea and over the western Gulf of Mexico. Ozone throughout the U.S. was fair except for California where levels reached Code Orange and Red (Unhealthy) (AirNow, middle right) which could be due to a high pressure system (Weather Map, bottom left) moving into the state which is conducive for ozone production.

Posted by csas1 at September 26, 2018 10:05 PM
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