Hope you have emergency preparedness in place to survive the snow attack. Storing a maple syrup in snow is not a permanent solution anyway, it make sense to consider sharing it with SatGuys to preserve from being spoiled.
Don't get me started on "emergency preparedness". The FD, and emergency preparedness people in this town want to spend the town's money to prepare for terrorist attacks or spills of hazardous nuclear or CW materials, or the likelihood of an air force tanker crashing in town, when in every imaginable senario, the feds would rush in and take over in the one in 1 billion probability of such a thing happening. Makes more sense to have the town invest in lottery tickets since they'd hit the jackpot before one of these emergencies happened.
But for snow attacks, we're generally pretty fast to clear things up. When we get 2' of snow, the only travel issues are generally the piles of snow that the plow trucks push onto the end of everyone's driveway. The roads are usually clear very fast. But I guess we don't have that many roads, so we have a high ratio of plow trucks to miles of roads.
Re the syrup, I don't store the syrup in the snow, just the sap. I usually don't boil until I collect 15-20 gallons of sap, which will usually boil down to a bit more than a quart of syrup. Depending on how fast the trees are dripping, it might take anywhere from 2 to 4 days to collect that much sap, so I need to store it, hopefully where it won't freeze to solid overnight, and not be exposed to warm sunlight during the day, and these little snow caves work pretty well.
I've found that it's better not to refrigerate the actual syrup, at least until it's actually being used, because you boil it down to a concentration where it is stable at room temperature, but if you refrigerate it, the sugar precipitates out in big crystals (with none of the maple flavor you'd find in the maple sugar candy, which is fast precipitated with stiring). So I've generated dozens of mason jars 1/2 full of solid sugar due to making the mistake of refrigerating it.
Anyway, for anyone interested in syrup
MapleSyrup
After a dozen years of making syrup, I FINALLY tried making maple sugar candy, and that is good stuff!!!