In some cases the rainbands are stationary relative to the centre of the moving storm, and in other cases they seem to rotate around the centre. |
These bands, commonly called rainbands, spiral into the centre of the storm. |
It was thought that the seeding would cause supercooled water in the outer rainbands to freeze, causing the inner eyewall to collapse and thus reducing the winds. |
He explained that storms and rainbands usually follow the location of the winds. |
Outer rainbands can organize into an outer ring of thunderstorms that slowly moves inward, which is believed to rob the primary eyewall of moisture and angular momentum. |
Today, it is known that silver iodide seeding is not likely to have an effect because the amount of supercooled water in the rainbands of a tropical cyclone is too low. |