Re: queen cell in michigan
Looks like you are in a better situation than me last year. It is better to put these virgin queens in a nuc box. I don't have many drones flying but the mature hives from other hives around already made for my queens. The good news is they mated 5 days earlier from the queen rearing calendar. When did they snug out to do their mating flight I do not know for sure. But certainly my drones not ready yet. But they are out there though.
Rather than banking your queens let them fly. I would not bet with the weather this year up and down like a yo-yo. You might get better weather next month so by then they might be over due. With nectar coming in there should be pollen also. Good sign that early spring is finally here in your area. But still cold is normal I think. Can you pull some nucs for them?