From their humble beginnings on Taiwan’s video series Weather Girls, an idol group by the same name that specializes in bringing you the week’s weather, have been building a solid fan base in their new home of Japan.The girls have been working hard, but their next goal might be challenging, reports Rocket News 24.The girls are reportedly studying hard to take the extremely strict National Weather Forecaster Exam next year. The test, which was established in 1994, reportedly has a 5 percent pass rate. However, if the girls succeed they will become full-fledged weather forecasters.The group will take the biannual exam in January of 2014 which gives them eight months of cramming.Each month, the girls hold study sessions with fans where licensed weather forecasters give lectures on the science of meteorology.From its inception in 1994 only 8,843 people have passed including entertainers like Yoshizumi Ishihara, Masayoshi Okumura, and Taro Yabe. However, these people have the advantage of being native Japanese speakers. Even professional speakers like Yomiuri broadcaster Anna Kobayashi had tried twice and failed both times.The test is open to everyone regardless of age, nationality, or education and covers both practical and theoretical problems. The test and its difficulty were, established with the purpose of maintaining the highest level of weather forecasting, because in the event of a disaster accurate weather reporting can mean the difference between life and death.To get a sense of the test, have a look at a basic practice question in the gallery below.