Category 1 storms are moderately destructive, while category 5 storms cause massive amounts of damage and require people to evacuate before they hit. At the center of the hurricane is the eye, a hole 10 to 100 miles wide in the center of the storm. The skies are nearly clear and the winds are light when the eye is passing overhead. Surrounding the eye is the eye wall, a bank of clouds containing the highest winds. Spiraling bands of cumulonimbus clouds around the eye wall which brings heavy rains.
Hurricanes form mainly in the late summer and autumn.
The hurricanes season usually peaks in September. Hurricanes form from tropical waters but may travel thousands of miles to the north or south of the tropic climate.