weather

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Across
  1. 3. a weather system with high barometric pressure at its centre, around which air slowly circulates in a clockwise or anticlockwise direction.
  2. 6. lines on a weather map joining together places of equal atmospheric pressure
  3. 7. when the cold front 'catches up' with the warm front.
Down
  1. 1. an area of low pressure which moves from west to east in the northern hemisphere.
  2. 2. the degree of hotness or coldness of the atmosphere on some chosen scale
  3. 3. a large body of air with generally uniform temperature and humidity
  4. 4. When a storm's maximum sustained winds reach 74 mph
  5. 5. a line on a map or chart connecting points of equal wind speed.