So, yes, that must have been tricky for Jehovah: no rain/precipitation until 4000 years ago; then lay down what looks exactly like 400K years of snowfall (including seasonal differences) in less than a year.
BoC: You know more about this stuff than me, but do they really believe that?! I.e. the part about no rainfall? I thought they had not mentioned anything about this for something like 40 years and it was considered old light?