An extra pall of haze in parts of the Mid-Atlantic states one mid-June day wasn't from a hot, smoggy day as you might expect that time of year.
Instead, it was from wildfires burning in western and northwest Canada over 1,600 miles away. Fortunately the smoke was aloft, mainly between 7,000 to 16,000 feet, according to NASA's Earth Observatory.
While high-latitude wildfires are common in the warm season, and smoke does occasionally intrude into the western U.S., this penetration of smoke into the East was a little out of the ordinary.
"It's not unprecedented, but smoke this thick is not common in these parts," said NOAA research meteorologist Mark Ruminski in a NASA Earth Observatory blog.
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