COLIN SEFTOR

Atmospheric Scientist With the Alter Ego
of The Tasmanian Devil


Formal Job Classification: Research Task Lead
Organization: Code 614, Atmospheric Chemistry and Dynamics

Smoke Over North America, 20 Aug 2018

Aug 21 2018 13:32 by cseftor

The smoke has been so prevalent and long-lasting that I’ve run out of inventive and nifty titles for these blog items, so I’m resorting to dull titles with dates. That doesn’t indicate a dull situation, however, as smoke continues to blanket much of the US and southern Canada (note I reduced the AI range down to from 0 to 5):

Much of the smoke is low enough in the atmosphere to affect air quality in much of the west, all along the Front Range of the Rockies, and into the midwest. Unhealthy air advisories have been issued for the northwest: https://www.airnow.gov/

And milky skies are evident as far east as Maine: https://www.centralmaine.com/2018/08/20/wildfire-smoke-creates-hazy-sky-in-northern-maine/

Smoke from Multiple Fires in the US

Dec 14, 2017 10:25 by cseftor

Fires across the US are producing smoke that covers much of the country. Here are the last couple of days:

Of course the smoke from the fires in southern California is still quite prominent as it moves all the way into western Montana and, in the other direction, further out into the Pacific. But, on the 13th, you can also see an arc of smoke extending across the middle of the country. More about the origin of this smoke is contained in NOAA's latest smoke text product:

http://www.ssd.noaa.gov/PS/FIRE/DATA/SMOKE/2017L140310.html