Effects of Cold Weather

With the presence of very cold air, it is possible for boiling water thrown into the air to freeze instantly. With the bitterly cold air felt in south-central Kentucky on January 6th, 2014 this weather experiment could be performed here. This experiment was conducted around 9 am this morning when the temperature was 4 degrees.

So why is it that boiling water will freeze instantly in the cold air? It’s all about the physical processes involved within the very hot water combined with the very cold and dry air. Boiling water is obviously the process by which water becomes water vapor. Once this water is thrown into the cold and dry air, the water quickly vaporizes as a result. The water vapor, as very small water droplets and thus a very small surface area, can then easily freeze.