May 10, 2018

Lower Plains States wildifre spreads Smoke

PM 2.5 levels today stayed around Code Yellow (Moderate) levels today, with most of the PM concentrating around the Mississippi Valley, the Southeast, and California. (AirNow, top left). Some Code Orange (Unsafe for Sensitive Groups) was also located in the mid Plains States. This rise in PM 2.5 was most likely due to smoke from wildfires in the Southern Plains States and the Mississippi Valley, as shown in NOAA's HMS map, top right. One fire in the lower Plains States in the Mallard Fire, which spans over 47,000 acres and counting (InciWeb). The source of this fire is unknown. Some light plumes of smoke in the general Southeastern region could be seen mixed in with cloud coverage in NASA's MODIS Terra images, bottom left. Ozone levels were also around Code Yellow levels today, with Moderate levels of ozone spreading through the Rocky Mountain States, the Pacific Southwest, and the Great Lakes Region.

Posted by mglover at May 10, 2018 10:32 PM
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