In this task, you are given a sentence in the English language and your task is to convert it into the Japanese language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).

Wilma ties the record for most tropical storms (named storms) in a season at 21, and the record for most hurricanes in a season at 12.
ウィルマは21個目の熱帯低気圧(嵐という)でシーズン当たりの襲来数についてのタイ記録で、1シーズン当たりのハリケーン数についても12個と最多である。