This is one wopping great question with a million answers there are two main stream methods of turning wet wood but it is and always will be a minefield sometimes it will work but another time it wont wet turning depends on so many factors but I will attempt to explain some of them as already mentioned how wet is your wood, what type of wood, were will it be stored, in dry conditions, humid, damp, worm, cold I'm getting a headache
Two methods of wet turning method 1. for (remounting) most bowls turn to an average of 1" thick with a spigot on the inside and outside when you have finished turning it needs to be weighed and recorded then stored in a bag with some of the shavings then after a month or so weigh it again and keep weighing it till the weight stabilises the time it takes will depend on the wood type, storage conditions, weather and size when dry remount using the inside spigot to redefine the outside then remount on the outside to redefine the inside dose that make sense I hope so
Method 2. thin turning many woods will benefit from this type of turning like Sycamore there are two ways this can be done 1. turn paper thin say a small vase using a light on the inside and you will see dark areas were the wood is thicker when finished turn a disk to plug the top inside of the vase to retain its shape when dry sand and finish
2. turn thin about 1/4" will do put it to one side to dry and watch it change shape how much depends on the wood some will move quite a lot some just a little when dry sand and finish
Or just take your chances I do this quite often in hact the last two vases I showed on the forum were done this way and they didn't split if the wood isn't to wet turn sand and Oil lots of oil to displace the water if it dose splits then drill holes along each side of the split and use a boot lase to decorate it quite effective
I think that about covers it but at the end of the day it is a journey of exploration in your own environment because your environment will be different to mine also there is no exact science to this good luck and happy turning
Wow that has given me a headache so I dont know what it will do to you