Once it cleared out, I was able to check out the area by air before following the coastline down to York Factory. You can see a pair of the red Adirondack chairs there.
There were showers in the area, but I managed to take an aerial tour of Wood Buffalo and Slave River before heading south towards a planned visit to Jasper. After a couple tries to get past the higher terrain towards Jasper, the weather finally defeated me, and I wound up in Peace River instead.