Ha, call it the “2000s Warm Period” or whatever so as not to trigger anyone but I’m fully on board with Tip’s idea of these exotic spring warm bursts, especially in NNE.
Every year now it feels like we are popping some high-end temperatures that are top 5 for their month’s. It feels like the last 10 years or so, each month of Feb, Mar, Apr, or May have had some monster warmth. Whether it’s like 95F+ at 750-1500ft SLK/BML/HIE/MVL in May, or 80+ in March… last year it was April that got the record torch.
It doesn’t feel like we do it in mid-summer or even autumn to winter. But spring time or during the time of increasing solar, at some point the atmosphere likes to maximize the physical limitations of the boundary layer.