Thunderstorm Thunderstorm A thunderstorm, also known as an electrical storm, lightning storm, or thundershower, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder. Thunderstorms occur in a type of cloud known as a cumulonimbus. They are usually accompanied by strong winds, heavy rain, and sometimes snow, sleet, hail, or, in contrast, no precipitation at all. Thunderstorms may line up in a series or become a rainband, known as a squall line. Strong or severe thunderstorms include some of the most dangerous weather phenomena, including large hail, strong winds, and tornadoes.
Centenary 1000 Mt St Bernard and Hotham Heights. The stage however was interrupted with a torrential downpours of rain hail and sleet and the race was suspended at Mt Buffalo, after covering around . The riders were accommodated at the Mt Buffalo Chalet as they were effectively marooned, with the road to Wangaratta under of water, the Alpine road over Mt St Bernard was impassable and of snow fell at Mt Hotham. Milliken suffered a puncture on Mt Buffalo and had to wait more than an hour for a spare wheel. It was reported that he was almost frozen and he abandoned