MYNN2 involves less computational expense than MYNN3; MYNN3 more accurately portrays deeper mixed layers compared to theMellor– Yamada PBL scheme (Mellor and Yamada 1974, 1982); MYNN3 reasonably depicts statically stable boundary layer simulations supporting radiation fog development (Nakanishi and Niino 2006); MYNN2 improves the PBL depiction over nonlocal PBL schemes for springtime PBLs that support deep convection (Coniglio et al. 2013)