foehn period

例句：

1. 1. The foehn period is a critical time for the mountain range.
   风暴期是山脉的关键时期。
2. 2. During the foehn period, the weather can be very unpredictable.
   在风暴期，天气可能非常不可预测。
3. 3. The foehn period brings strong winds and heavy snowfall to the area.
   风暴期给该地区带来了强风和大雪。