Simplify the following text for a Grade 8 native English-speaking person.
Original: On October 30 , it was upgraded to Category 1 hurricane , in what the NHC described as a case of a small hurricane that would not have been observed before microwave satellite images . Shary became extratropical later that day , and the NHC issued their final advisory on the system .
Simplified: On October 30 , while west of Bermuda , Shary became a Category 1 hurricane .