The turbulence off the back of the bus could probably cause some significant wind inside of the bus, but 40mph wind certainly seems unlikely. Of course relativ

The turbulence off the back of the bus could probably cause some significant wind inside of the bus, but 40mph wind certainly seems unlikely. Of course relative comfort had little to do with why the bus did not continue on it's route unphased. Even city buses would stop for that sort of thing.