The wind that day was blowing towards brooklyn. Half burnt papers were falling down on BP streets.
I wasn't in town then but my family told me that the whole Crown Heights smelled like smoke.
In fact 3 weeks later, right before Sukkos, I had a flight into LGA (the flight was empty, 7 people and that's including 2 pilots, a flight attendant and an air marshal). And as we were about to land we were flying along Manhattan and there was still a huge pillar of smoke where the WTC stood.