Update here as this issue is still a mystery. I’ve learned the noise seems to occur when the temperature drops below 50 degrees. The last 3 times it reappeared it was a cold, raw and rainy day. It’s never occurred during warm weather. I think it has something to do with the windshield seal, I told the dealer I’ll pursue it with them in the fall when we have steady colder weather. Going to suggest they consider pulling the windshield.
The noise coming from the corner of the windshield on my Limited was caused by the issue described in this thread. It was most annoying in cold weather too. A squeaking/crackling noise resolved