Tropical storm Bolaven is expected to pass between Rota and Tinian in the Northern Mariana Islands this evening and could possibly become a typhoon.
A typhoon warning remains in effect for Rota, Tinian and Saipan, with a tropical storm warning and typhoon watch in place for Guam.
The latest update says the storms maximum sustained winds are 128 kilometres per hour maximum.
RNZ Pacific's Caleb Fotheringham has more.