They are predicting 1-2 inches of snow and winds 10-20mph with gusts to 40mph. Since this is our first winter with chickens, do I shut the doors for ventilation for the night until the wind and snow is done? I am concerned with the wind that it will blow into the coop and on the chickies. We want to keep them safe, dry and comfy. Also temps are supposed to be in the 20's for the 1st time this winter.