Wind shear refers to changes in wind speed and direction with altitude. In this storm ... aspects of the storm was the appearance of mammatus clouds. These pouch-like formations hung ominously ...

Mammatus clouds are one of the most peculiar ... glowing ethereally in the twilight hours. These high-altitude clouds, often appearing in shades of blue or silver, are made of ice crystals and ...

These globular clouds usually form underneath the base of a cumulonimbus cloud and are associated with strong thunderstorms. The globular lobes clump together to form small patches that last only ...