Re: Warm spell for the next week, liquid sugar water or candy board?
I feed syrup all winter using a hive top feeder . The bees will take it on warmer days and won't touch it when it is cold. Not too worried about them dehydrating it fully as they would need water to be able to use it later. My climate is way different than grozzie's and probably different than yours too, but I would certainly give it a try.
As Brother Adams said, "Listen to the bees and let them guide you".
Thankfully, the bees are smarter than I am. They are doing well, in spite of my efforts to help them.