I'm kinda in the same situation, departing next Thursday to stopover at Bangkok for one day before continuing to Kathmandu, Nepal. The problem is, I don't know where else can I go through to get to Kathmandu on *A flights without stopping by Bangkok. So I'm gonna pray that BKK will keep open and worse case I'll stay at the airport for one day. I did buy my rubber boots at local CanTire just in case I have to tread through water next Saturday.