We just learned that large storms in the tropics are called Tropical Cyclones and that they have many different names.
Many of these names are based on how strong the cyclone is.
The first level of tropical cyclone is called a Tropical Depression.
This means the storm clearly looks circular, but the winds are less than 39 miles per hour.
(from: wikipedia - tropical cyclone)
Kid Facts - Blast from the past: Shelf Clouds
