These giant clouds are the result of the Boston Bar wildfires — more than 200 km away — experts say

https://i.cbc.ca/ais/9d449241-4278-431f-a95d-bdca3bc51402,1784848090655/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C750%2C4000%2C2250%29%3BResize%3D%28620%29" title="Pyrocumulus clouds, seen from Coquitlam, B.C., are pictured forming above the Boston Bar wildfire on July 21, 2026." width="620" />

Photos of giant, cauliflower-like clouds are popping up on Vancouver-area social media feeds that experts say are pyrocumulus clouds produced by a wildfire more than 200 kilometres away.