Weather

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Across
  1. 4. fast-moving cold air mass overtakes a warm air mass.
  2. 8. Humid air mass that forms over oceans.
  3. 10. a huge body of air that has similar temperature, humidity, and air pressure at any given height.
  4. 11. warm air the overtakes slowly moving cold air.
  5. 12. cold air masses form north of 50 degrees north latitude and south of 50 degrees south latitude.
Down
  1. 1. cold and warm air masses meet, but neither can move the other.
  2. 2. a dry air masses that form over land.
  3. 3. a warm air mass that is caught between two cooler air masses.
  4. 5. Average weather conditions in an area over many years (usually 30 years).
  5. 6. the boundary where that air masses meet.
  6. 7. The conditions of the atmosphere at a given time and place.
  7. 9. warm, air masses form in the tropics and have low air pressure.