A warm dry wind on the lee side of a mountain range, whose temperature is increased as the wind descends down the slope. It is created when air flows downhill from a high elevation, raising the temper [..]

A thermal classification, it is the layer of the atmosphere located between the mesophere and out space. It is a region of steadily increasing temperature with altitude.

Often called dusk, it is the evening period of waning light from the time of sunset to dark.

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This is considered the misture of gases that make up the earth's atmosphere. The principle gases that compose dry air are Nitrogen at 78.084%, Oxygen at 20.946%, Argon at .93%, and Carbon Dioxide [..]

An extensive body of air throughout which the horizontal temperature and moisture characteristics are similar.

Acronym for Automated Surace Observing Systen. This system is a collection of automated surface weather instruments that collect data. It performs surface observations in places that either do not hav [..]

The pressure exerted by the atmophere at a given point. The measurement can be expressed in millibars(mb) or in inches of mercury(Hg).

A severe weather condition characterized by low tempratures, winds 35mph of greater, blowing snow that can reduce visibilities to 1/4 mile or less for more than 3 hours. A severe blizzard is character [..]

Refers to a fast-moving cold front in the southern Great Plains , marked by a dark, blue-black sky, strong north winds and temperatures that may drop 20-30 degrees fahrenheit in a matter of minutes