In a lucid dream, you have control over the dream environment and can manifest almost anything you can imagine, including turning yourself into a storm. As a lucid dreamer, you can manipulate your dream world's physical sensations, visuals, and even emotions. However, the actual feeling of becoming a storm may vary from person to person, as it is subjective. You might feel a sense of immense power as you control the wind, rain, thunder, and lightning. You might also experience sensations like weightlessness, as storms are large fast-moving systems. Additionally, you may feel a sense of unity with the natural elements, like being a part of the rain, the clouds, or feeling the raw energy of lightning bolts. Ultimately, the experience would be based on your expectations, perceptions, and imagination while in the lucid dream state.