This is the recommendation (BBC news) for surviving a snowstorm:
Make sure you have at least three gallons (13.5 litres) of drinking water per person, per day
Tape the windows with bubble wrap to keep the heat in
Use your dog to measure the snowfall
If we suddenly have a snowstorm, I do not have bubble wrap or a dog. We have a few bottles of water in the garage, but 13.5 liters per person per day?If we planned for a 3 day white out, that would be more than 200 litres of water (family of 5)
How does a dog measure snowfall anyway?
;(