A) Top Surface Melting is most strongly driven by warm wind. A 24 hour, 50 degree thaw with winds in the 20-30 mph range can melt a couple inches or more of ice. Holes of several types and sizes are also common after a windy thaw. Heavy rain over 24 hours with only moderate wind will result in about an inch of ice loss. Most of that is from the warm air.
There are 30 calories in a 1 cup popped serving of Orville Redenbacher's Movie Theater Butter Popcorn. Calorie breakdown: 49% fat, 46% carbs, 5% protein.
You can go for 400 to 1,200 calories' worth of popcorn that (at many theaters) is essentially fried in one to three days' worth of saturated fat. Or you can buy a package of candy with 300 to 1,100 empty calories (plus at least half a day's sat fat if it's chocolate).