Consider the following statements regarding Jet Streams and their impact on Indian weather:

1. Jet streams are fast-moving, narrow air currents in the upper atmosphere that significantly influence global weather patterns.

2. The position of the subtropical westerly jet stream over India determines the onset and withdrawal of the Indian monsoon.

3. During winter, the strong polar front jet stream moves southward, bringing cold waves and unseasonal rainfall to Northern India.

Which of the following statements is/are correct?