If you, Google, the effects of wildfire smoke on cannabis, there are a bunch of articles pertaining to the Cali wildfires a few years ago. Seems to be some anecdotal evidence that it can cause premature flowering. But most of them focused on the effect of the ash and whatever raining down on the buds. Made it extremely difficult for the unfortunate to pass the state mandated tests to sell it on the market. A couple of years ago I was out, shaking ash off of my plants and had a terrible year. But they didn’t flower early. But they didn’t trich up much either. But I had shitty genetics and was still learning how to deal with growing in this hell hole! So I am a little hesitant to blame it on the smoke. I think this would be a good one for Bruce Bugbee to look into.