什么是“炸弹旋风”？

cyclone –n. n extremely large, powerful, and destructive storm with very high winds that turn around an area of low pressure

mililbars –n. a unit used to measure atmospheric pressure

forecaster –n. a person whose job it is to predict something in the future, for example a weather forecaster

hyped up –phrasal verb. to talk or write about something in a way to get people excited about it