May 21, 2012
Smoke From Siberian Fires Still Observed over North America; Wildfires in Arizona and New Mexico; Code Orange AQI Levels in California
Following up from yesterday's post by Patricia, smoke from the Siberian fires, seen as early as May 7th by the MODIS AQUA satellite (shown here from the May 11th Smog Blog post) and covered over the past week on the Smog Blog, continue to be observed by NOAA's Hazard Mapping System (HMS, top left) stretching from Alaska, down through the Northwest and Central parts of Canada, and into the Plains States region of the United States. Smoke and moderate AOD values from these fires was observed over Louisiana, Texas, Mississippi, Alabama, and Florida by the MODIS Terra true color image with the NOAA IDEA AOD map overlaid (IDEA, top right).
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PM2.5 levels (left, courtesy AIRNow) in the previously mentioned states reached Code Yellow (Moderate). However, ozone levels (right) reached Code Orange (Unhealthy for Sensitive Groups) in Louisiana and Texas. Wildfires in Arizona and New Mexico were reported by HMS above and shown in the MODIS TERRA true color image below (bottom). Ozone levels in these states reached Code Yellow levels, with Arizona reporting Code Orange levels. In southern California, Code Orange ozone and PM2.5 levels were reported.
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Posted by Jaime Compton at May 21, 2012 7:10 PM
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