When air masses meet. When a moving cold air mass meets a warm air mass, that is lighter, it tends to wedge below the latter, thus giving origin to a cold front. The warm air is forced upwards and its ascent causes the formation of clouds.
Strategies and More Information. Tyranitar is a big Rock/Dark PokÃ©mon, but it is sometimes considered to have Dragon traits, even though it has no Dragon type. Tyranitar comes with the ability Sand Stream which summons a Sandstorm. It generously helps Rock, Ground, and Steel type PokÃ©mon by causing a little damage to other types every turn. It will also boost a Rock type PokÃ©mon's Special Defense one stage (50%).
Confidence votes 471. Tynamo evolves at level 39 into Electrick and then give the Pokemon a thunderstone(you can get the thunderstone on the top floor of the shopping center on route 9, (a man gives it to you) and it evolves into a Elektross.