1. 龙卷风   typhoon   tornado   drought   hailstorm   Hint Half-n-half Clue   2. 洪水   flood   hailstorm   hurricane   deluge   Half-n-half Clue   3. 饥荒   cyclone   whirlwind   volcanic erruption   famine   Half-n-half Clue   4. 旋风   cyclone   whirlwind   storm   drought   Half-n-half Clue   5. 洪水   flood   cyclone   storm   whirlpool   Half-n-half Clue   6. 天旱   drought   blizzard   hailstorm   cyclone   Half-n-half Clue   7. 飞雪   tornado   blizzard   whirlpool   drought   Half-n-half Clue