What is jupiter red great spot? Jupiter's Great Red Spot is a massive, long-lasting storm in Jupiter's southern hemisphere that's known for its crimson-colored clouds and high winds: Size: The Great Red Spot is about 1.3 times the width of Earth and could fit about 1.3 Earths inside of it. Wind speed: The Great Red Spot's winds can reach speeds of up to 400 miles per hour. https://www.dailymotion.com/Gamingking