I've checked now and then with the mesos around yeah, I did not see anything noticeable. Not like KBOS for sure. One thing that has resonated with Logan (and I think this validates the drift) are the departures. The departures have all been an astonishingly consistent 1.5F to 2.0F AN compared to other first order sites and COOPs. There is no reason and no explanation why the same airmasses should always be 1.5F to 2.0F warmer at Logan vs Blue Hill, ORH, or any other place. None. I heard UHI thrown around too. KBOS has had UHI baked into climo for years on end. This isn't a place where sky scrapers rose from the marshed 20 yrs ago. So something is off here.