Chapter 20: Storms and Weather Prediction

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Across
  1. 1. -an atmospheric electrical discharge that occurs between clouds or between a cloud and the ground.
  2. 7. -a cool or cold air mass that originates over upper latitudes.
  3. 10. -a strong cyclonic storm with winds of at least 63 km/h (39 mi/h). Strengthening tropical storms can develop into hurricanes.
  4. 13. -the upward movement of air masses as they flow over mountains.
  5. 14. -the boundary where at least two different air masses meet.
  6. 15. -a low humidity air mass that originates over land.
  7. 16. -a huge body of air in the troposphere with similar temperature and humidity throughout.
  8. 18. -a symbolic representation of data from a weather station on a weather map. Each number and symbol, and their locations in the model, provide specific weather information.
  9. 19. -a storm that brings heavy snow or sleet, high winds, and/or unusually cold weather.
  10. 20. -a severe weather disturbance involving high winds, heavy precipitation, and other conditions, such as lighting or low temperatures.
  11. 21. -the low pressure center of a hurricane containing relatively clear, calm, rising air. the eye usually has light winds, low precipitation, and low pressure.
Down
  1. 2. -a rainstorm that produces lightning. Thunderstorms may include hail, bursts of strong winds, and even tornadoes.
  2. 3. -an immense cyclonic windstorm that forms over tropical or subtropical oceans; hazardous to ships at sea and extremely damaging if it moves over land; also called a typhoon or cyclone.
  3. 4. -a higher than normal local sea level caused by seawater flowing toward the lower air pressure under a hurricane.
  4. 5. -a warm air mass that originates in the tropics.
  5. 6. -a frigid air mass that originates over the poles.
  6. 8. -a weather map that presents a summary or synopsis of weather data for a given time frame. There are four synoptic weather maps: the Surface Weather map, the Highest and Lowest Temperature maps, the Precipitation Areas and Amounts map, and the 500 Millibar Height Contours map.
  7. 9. -a high humidity air mass that originates over the oceans.
  8. 11. -a destructive, localized, rapidly rotating cyclonic windstorm forming a funnel; usually associated with a special cumulonimbus cloud called a super-cell.
  9. 12. -the lifting of a warm air mass above a cool air mass acting as a wedge.
  10. 17. -the lifting of air when horizontal air currents from opposite directions collide and rise into the atmosphere.