Maria was a tropical storm in the North Pacific Ocean Saturday morning Japan time, the Joint Typhoon Warning Center said in its latest advisory.
The tropical storm had sustained wind speeds of 58 miles per hour.
All times on the map are Japan time.
Typhoon season is year-round; however, most typhoons form from early July through mid-December.
Most typhoons scrape or strike places like the Philippines, Japan and Taiwan; they can also hit the Korean Peninsula, China and Vietnam, bringing damaging winds and storm surges.
Typhoons have also hit U.S. territories, causing billions of dollars in devastating damage to places like Guam, which was battered by Super Typhoon Mawar in May last year.
Sources and notes
Tracking map Source: Joint Typhoon Warning Center
