Blizzards and winter storms can be more dangerous than summer storms. America’s worst winter weather comes from blizzards, which can be generated by specific conditions in the upper Midwest and by nor’easters on the east coast. Other regions of the US are seldom hit. The National Weather Service issues a blizzard warning when it projects
Read MoreClouds at temperatures between 0 and -40C contain a mixture of ice crystals and super-cooled water. At colder temperatures, ice crystals prevail. Super-cooled water is responsible for the threat of aircraft structural icing, but at lower temperatures, this threat decreases. Because of the lack of super-cooled water, icing, other that of light intensity, is unlikely
Read MoreHistorically, aviators have been concerned with icing that occurs when super-cooled liquid water freezes upon contact with an airframe at temperatures below 0C. Generally at very cold temperatures, the amount of super-cooled water present in a cloud decreases. At temperatures below -40C, it is generally accepted that super-cooled water does not exist in clouds, and
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