However, if you were watching the smoke rise from many smokestacks, say at some sort of factory with many outlets, you'd say something like, "Look at the smoke rising today over there..." Or perhaps, "Look at all the smoke rising today..." But you wouldn't say, "Look at all the smokes rising." :)

but if, instead of smoke stackes, you were looking at the smokey mist rising from mountains,the you have the Great Smokies!

i think the thing is that the verb smoke-(Do you smoke?/She smokes [/greeen] takes an s, (and do then lends the S to the smoke for a short term for cigarettes, but smoke itself is singular...
we have smokey areas, or smoke filled rooms, but not a room filled with smokes, only a room filled with smokers, each of whom is adding more smoke.