Don't slow down!!
Looking like tomorrow morning you will have good flying today and tomorrow morning into Alaska. Tomorrow afternoon the snow will begin to migrate east.
I would be looking to go direct Whitehorse to ORT, (NORTHWAY), which is about 3 hours. Get customs done there. They might allow the option to continue and check in at Anchorage, but I don't think you will make it that far with the snow.
You will probably make it to Gulkana. If that is your plan let me know, I will call my boss and see about hangar space around for the night there.
Wednesday looks good to get to Anchorage in the morning.
Your other option is to go to Juneau and get customs and go the coast. Tomorrow you could leave either Haines or Juneau, go to Yakutat and fuel again, then Cordova. Cordova to Anchorage might be a question tomorrow night, but again Wednesday looks pretty good early.
If I were waiting this time of year, Gulkana is on the road, so you could more easily get to Anchorage to meet the Mrs. and back to get the plane.
I will suggest you keep Liard stop to minimum time:lol: