Interesting paradox:
The modeling study reveals that the intense heat rising from wildfires weakens the flow of cool, moist air from the West to the Great Plains. Warmer, drier air on the Great Plains, in turn, draws in winds from the East. Easterly winds not only suppress the spread of smoke from western fires, they also bring in moisture from the Atlantic Ocean. And that extra moisture fuels rainfall on the East Coast, cleaning particulate pollution from the air.