Meteorological terms helps us to explain the weather, climate, and phenomena that occurs in our atmosphere. Learn more meteorological terms and how they are used here.


Hail, lumps of ice that fall from thunderstorm clouds. Individual lumps, called hailstones, are usually round and have a rough surface.

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  • Isotherm


    Isotherm, in geography, a line drawn on a map connecting places that have the same average temperature for a given period of time. See more »

  • Maelstrom


    Maelstrom, or Mosken-straumen, a tidal whirlpool between two of the Lofoten Islands, off the northwest coast of Norway. See more »

  • Meteorology


    Meteorology, the science of the atmosphere and its phenomena. It has two major divisions: weather and climate. See more »

  • Mistral


    Mistral, a strong, dry, cold wind that blows from the uplands of southern France to the Mediterranean Sea. See more »

  • Monsoon


    Monsoon, a wind system in which the prevailing wind direction is reversed from season to season. See more »

  • Norther


    Norther, an occasional strong, cold wind that blows from northern Canada to the Gulf States and the Gulf of Mexico. See more »

  • Sirocco


    Sirocco, a southerly wind in the region of the Mediterranean Sea, blowing from the Sahara. See more »

  • Sky


    Sky, the atmosphere and space as seen from the earth. The clear sky is blue during daylight hours because sunlight, which contains all colors, is scattered by the molecules of air as it strikes the upper atmosphere. See more »

  • Sleet


    Sleet, frozen or partly frozen rain. Sleet occurs in cold weather when raindrops freeze as they fall through cold air. See more »

  • Temperature-Humidity Index

    Temperature-Humidity Index

    Temperature-Humidity Index, or THI, a number used to indicate the discomfort caused by the combined effects of heat and moisture in the air. See more »

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