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Across 3. A Loud Rumble in the sky 5. rotating column of air that spins while in contact of the surface 7. A scale to measure tornados wind speed and damage (2 Words) 8. a discharge that occurs during an electric storm 10. violet thunderstorm wind

Down 1. powerful thunderstorm created by updrafts 2. where the strongest winds of a hurricane are concentrated (2 Words) 4. Heavy storm that has lightning and thunder with heavy rain 6. Matthew, Iren, Katrina are all names of what? 9. calm part of the cyclone