Occluded fronts. An occluded front forms when a cold front reaches a warm front, forcing all the warm air to rise to higher altitudes and the cold air is stratified near the ground. At our latitudes, over the Atlantic, cyclonic areas form continuously, these are fed by the Azores anticyclone and the Polar anticyclone.
Pikachu - Raichu. Eevee - Jolteon. As of the IV generation, only two Pokemon will evolve if exposed to a Thunder Stone: Pikachu into Raichu and Eevee into Jolteon. Despite the number of Electric-type Pokemon, only these two require a Thunder Stone to evolve. pikachu- evolves into raichu. eevee- evolves into jolteon.
Legendary Pokemon. Heatran, Raikou, Entei, Suicune, Jirachi ,Shaymin, Azelf, Mesprit, Uxie, Thundurus, Tornadus and Landorus are the only legendaries seen and catchable in the game. Palkia, Dialga, Groudon and Kyogre are legendaries that are seen in the game but are not catchable right now.