A hurricane warning remains inforce for the Vavau and Haapai groups  after severe Tropical Cyclone Ian that was previously a category 5 system was  downgraded this morning at 9:30am to category 4.

Tonga Met Services  said Ian is moving south-southeast at 6knots and on this track it is expected to lie about 20km north-northeast of Fakakakai  in Haapai at 1pm today.

A gale warning remains in force for Tongatapu,'Eua and nearby islands.

A strong wind warning remains inforce for Niuafo'ou, Niuatoputapu and Tafahi.

A damaging heavy swell advisory remains inforce for coastal waters of  Vava'u and Ha'apai group.

On its current track, tropical cyclone Ian may bring:

Destructive to very destructive force winds to Vavau from now until 3-6hrs later.

For the Ha'apai group tropical cyclone ian may bring destructive storm force winds in the next 3-6hr and very destructive hurricance force winds in the next 6-12hr.

For Tongatapu and 'Eua the cyclone may bring damaging gale force winds in the next 12-18hrs