WEATHER

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Across
  1. 3. extended period of higher-than-normal temperatures caused by large, high-pressure systems that warm by compression and block cooler air masses
  2. 5. large, rotating low-pressure storm that gets its energy from the evaporation of warm ocean water and the release of heat
  3. 7. thunderstorms caused by advancing cold fronts
  4. 9. violent, whirling column of air in contact with the ground that forms when wind direction and speed suddenly change with height
Down
  1. 1. extremely powerful, self-sustaining thunderstorm characterized by intense, rotating updrafts
  2. 2. strongest winds of a hurricane in a band surrounding the eye
  3. 4. calm center of a hurricane
  4. 6. violent, damaging thunderstorm wind that is concentrated in a local area
  5. 8. extended period of low rainfall, usually caused by shifts in global wind patterns, allowing high pressure systems to remain for weeks or months over continental areas