I just got off my roof and fixed the wind vane on my weather station. It seems it had been stuck for many weeks and bugged me.
I apologize for the miss information it has been reporting but all is well as of this date. I hope it did not inconvenience anyone.
For those of you with Davis Weather Monitor II, there is a rubber drip ring over the rotating cup. This boot had cocked to one side and jammed the rotation of the vane. Once lifted it starting spinning freely. I did clean and lubricate to hopefully eliminate future problems.