Drifting smoke from two separate wildfires on Harrison Lake and in Washington State is not found at ground-level so the air quality is expected to remain good for the next two days, according to Metro Vancouver officials.
But things can change quickly.
Metro Vancouver issued an air quality update Wednesday morning (July 30), with "medium" air quality expected for the Fraser Valley and Vancouver regions.
It said the air quality "is good and expected to remain good" despite some smoky skies visible.
The pair of wildfires affecting the region are producing smoke at higher elevations that are not "currently at ground-level."
"One fire is located in Olympic National Park in Washington State and the other, a wildfire of note, on the east side of Harrison Lake."
The Harrison fire known as the Bear Creek wildfire was declared "a wildfire of note" as it grew from 22 hectares to 65 hectares overnight Tuesday.
"Weather will remain sunny and hot today and tomorrow."
The way Metro Vancouver advises the region on air quality has changed. They no longer use the term 'Air Quality Advisory', and have changed it to 'Air Quality Warning', with the word advisory having been replaced by the word warning in the past year.
"Air quality updates are provided when there is the potential for degraded regional air quality in advance of or during an air quality warning."
The "medium" designation is when regional air quality "may be somewhat degraded or is expected to become degraded" with "considerable uncertainty if an air quality warning will be necessary."
Officials say an AQ warning is not expected Wednesday.
"Staff are closely watching conditions since fire behaviour can change quickly.鈥�"
To see real-time air quality data and the Air Quality Health Index (AQHI), visit airmap.ca.
