Your a bit to early for north cascades I doubt they will not even have the cascade river road plowed by then... The state has nothing to do with that road it is plowed by the county and when they discide to get off there ass and plow it will be plow not until.
If you go a month later I might be able to go with yeah but by then I would want do a circnavagation of boston basin hit 6 peaks eldo, buckner, forbidion torment traverses sahale, sharkfin tower ect
lots of good stuff in there
heavy pack which sucks but tons of climbin