The super typhoon was packing winds of more than 120 mph as it barreled toward Okinawa after midnight on Friday.
All air traffic in and out of the island had been halted prior to the storm’s arrival.
Authorities in China were ordering fishing boats back to safe harbor in anticipation of Muifa’s arrival over the weekend.
Disaster officials in Shanghai warned that the storm could be as destructive as 2005’s Typhoon Matsa, which caused more than $15 in damage.
Typhoon Muifa Track
Satellite Loop Data: CIMSS