Category Archives: Weather Dangers

How Much Condensed Liquid Water is in a Cubic Mile of Fog?

Fog is composed of tiny water drops, each one with a diameter of about one-one thousandth (0.001) of an inch. They are small and fairly uniform in size. You also would find about one of these drops in each cubic inch of fog. . . Continue reading

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How do We Stay Safe from Tornadoes?

The U.S. has a wonderful tornado warning systems. The national system of severe weather watches and warnings has saved untold numbers of lives. In addition to the sirens, the National Oceanic and Atmospheric Administration’s (NOAA) Weather Radio network puts nearly everyone within range of government weather broadcasts. Continue reading

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What is Freezing Rain?

When particles falling from clouds reach the surface as precipitation, they do so primarily as rain, snow, freezing rain, or sleet. Why are there different types of precipitation? It has to do with the ability of water to change phase. Continue reading

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Why do Bridges Ice before the Road?

Living in a cold climate, we are used to seeing signs that say “bridge freezes before road.” The fundamental reason is that a bridge hangs above the ground, while the roadway rests on the ground. Water on a road or bridge will freeze once the surface becomes colder enough. So, the road must cool faster than the roadway. Continue reading

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What is the Coldest Wind-Chill Temperature Ever Recorded in Madison?

The wind-chill temperature describes the increased loss of heat by the movement of the air. The wind-chill is relevant to humans and other animals that need to maintain a constant temperature that is higher than their surroundings. Continue reading

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