Direction is big too. Due N-S winds are rare in ATL, the airport does not even have a N-S RWY much like DFW/DAL do not often see strong W-WSW winds so tree roots are likely not going to be able to handle 45-55 from 160-180 as well as they could 040-080. 60 plus forget it. Georgia had real severe damage from Zeta despite winds being S-SW due to the fact the direction was rare.