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Current warnings |
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Latest Tropical Cyclone Advisory on Tropical Cyclone “IAN” English Tongan History of advisories on TC “IAN” issued by the Tonga Meteorological Service Latest Forecast Track for TC “IAN” (RSMC Nadi) South West Pacific Marine Forecast (RSMC Nadi)
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Commonly used wind warning terms used at the Tonga Meteorological Service |
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Light winds |
Angi iiki |
Average winds less than 10kts |
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Moderate winds |
Angi mamalohi |
Average winds between 11 to 16kts |
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Fresh winds |
Angi mamalohi ke malohi ange |
Average winds between 17 to 21kts |
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Strong winds |
Angi hako pe hakohako |
Average winds between 22 to 33kts |
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Gale force winds |
Matangi malohi fakatupu maumau |
Average winds between 34 to 47kts |
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Storm force winds |
Matangi Afaa pe matangi malohi fakatupu maumau lahi |
Average winds between 48 to 63kts |
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Hurricane force |
Matangi Afaa malohi pe matangi malohi fakatupu maumau lahi ‘aupito |
Average winds ≥64kts |
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Severe Tropical Cyclone |
Saikolone fakatalopiki Malohi |
A tropical cyclone with average sustained winds ≥65kts |
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Tropical Cyclone Alert |
Fakatokanga ke tokateu kiha saikolone fakatalopiki |
An alert giving advice that gale force winds may affect a coast within 24 to 48hrs |
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Tropical Cyclone Warning |
Fakatokanga saikolone fakatalipiki |
A warning giving advice that gale force winds may affect a coast within 24hrs |
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Gale Alert |
Fakatokanga ke tokateu kiha matangi malohi fakatupu maumau |
An alert giving advice that gale force winds may affect a coast within 24 to 48hrs |
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Storm Alert |
Fakatokanga ke tokateu kiha Afaa pe matangi malohi fakatupu maumau lahi |
An alert giving advice that storm force winds may affect a coast within 24 to 48hrs |
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Hurricane Alert |
Fakatokanga ke tokateu kiha Afaa Malohi pe matangi malohi fakatupu maumau lahi ‘aupito |
An alert giving advice that gale force winds may affect a coast within 24 to 48hrs |
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Gale warning |
Fakatokanga kiha matangi malohi fakatupu maumau |
An warning giving advice that gale force winds may affect a coast within 24hrs |
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Storm warning |
Fakatokanga kiha Afaa pe matangi malohi fakatupu maumau lahi |
An warning giving advice that storm force winds may affect a coast within 24hrs |
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Hurricane warning |
Fakatokanga kiha Afaa Malohi pe matangi malohi fakatupu maumau lahi ‘aupito |
An alert giving advice that hurricane force winds may affect a coast within 24hrs |
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Commonly used terms for seas wave heights used at the Tonga Meteorological Service |
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Calm seas |
Nonga e tahi |
Wave height 0 to 0.1 meters |
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Smooth seas |
Tokalelei e tahi |
Wave height 0.1 to 0.5 meters |
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Slight seas |
Tokamalie e tahi |
Wave height 0.5 to 1.25 meters |
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Moderate seas |
Houhousii e tahi |
Wave height 1.25 to 2.5 meters |
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Rough seas |
Hou e tahi |
Wave height 2.5 to 4 meters |
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Very rough seas |
Hou ‘aupito e tahi |
Wave height 4 to 6 meters |
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High seas |
Ma’olunga e tahi |
Wave height 6 to 9 meters |
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Very high seas |
Ma’olunga ‘aupito e tahi |
Wave height 9 to 14 meters |
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Phenomenal seas |
Ma’olunga ‘aupito ange ‘a e tahi |
Wave height over 14meters |
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Commonly used terms for seas state used at the Tonga Meteorological Service |
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Low swell |
Aake ma’olalo e peau |
Average wave height <2m (trough to crest) |
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Moderate swell |
Aake mamalohi e peau |
Average wave height 2m-4m (trough to crest) |
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Heavy swell |
Aake malohi e peau |
Average wave height >4m |