Weather

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Across
  1. 2. a quantity expressing the effective lowering of the air temperature caused by the wind
  2. 4. a current in a fluid that results from convection
  3. 6. a boundary separating two masses of air of different densities
  4. 7. a narrow, variable band of very strong, predominantly westerly air currents encircling the globe several miles above the earth
  5. 8. a line on a map connecting points having the same temperature at a given time or on average over a given period
  6. 9. a cloud forming a towering mass with a flat base at fairly low altitude and often a flat top, as in thunderstorms
Down
  1. 1. the atmospheric temperature below which water droplets begin to condense and dew can form
  2. 3. a quantity expressing the discomfort felt as a result of the combined effects of the temperature and humidity of the air
  3. 5. the amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temperature
  4. 8. a line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period