We're not surrounded by fire up here by the Canadian Border, but Oregon has been sharing some of their smoke with us. It's been rated "unhealthy" for three says, so we're staying inside.
No cool color effects. It reads just like fog, and to an extent it is fog as particulates encourage condensation. But it's the same in all directions, which fog usually isn't, at least not here.
Spot the shitty visual pun!