The “Packwood Glacier” is really just a mostly-permanent snow field - no worries about crevasses, etc. The PCT just north of there is likely to be a bigger problem, traversing the slopes of Old Snowy Mtn. It can get rather icy/slippery, and it’s a long way down. It’s probably a better idea to go straight up the ridge and back down the other side instead of traversing (you’ll see what I mean when you’re there). In general, there’s been a pretty decent snow pack in WA this year, so you’re likely to encounter a lot of snow June 22nd and for the next few weeks after. I’m not sure if the ridge walk north of Old Snowy will be melted-out enough to make for easy going - could go either way… you’ll probably encounter some solid walls of packed snowdrift. Bring an ice ax in any case, you’ll probably need to cut steps somewhere if nothing else. Actually, if you’re hiking the whole WA PCT… I hope you’re headed north (south bound would be tough starting June 22).
There might be a couple streams that will get you wet around Glacier Peak, but nothing insurmountable. You’ll need to decide what to do for the Suiattle River bypass.
-Jonathan
J Ley