1. 旋涡   storm   deluge   tornado   whirlpool   Hint Half-n-half Clue   2. 地震   whirlpool   volcanic erruption   flood   earthquake   Half-n-half Clue   3. 雹暴   hailstorm   typhoon   drought   volcanic erruption   Half-n-half Clue   4. 龙卷风   flood   snowstorm   tornado   deluge   Half-n-half Clue   5. 台风   blizzard   drought   volcanic erruption   typhoon   Half-n-half Clue   6. 天旱   snowstorm   typhoon   hurricane   drought   Half-n-half Clue   7. 飞雪   blizzard   tornado   drought   typhoon   Half-n-half Clue