FUA'AMOTU WEATHER FORECASTING CENTRE
WEATHER BULLETIN ISSUED AT 07:00PM MONDAY 20 JANUARY 2020
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WARNING
A STRONG WIND WARNING REMAINS INFORCE FOR THE NIUAS LAND AREAS.

A HEAVY RAIN WARNING AND FLASH FLOOD ADVISORY REMAINS INFORCE FOR THE NIUAS LAND AREAS.
SITUATION
A trough lies slow moving over the Niuas. Associated clouds with occasional showers will continue to affect the Niuas. Meanwhile a West to Southwesterly winds will continue to prevail over most part of the group.
FORECAST TO MIDNIGHT TOMORROW FOR TONGA
FOR THE NIUAS:
Moderate to Fresh North to Northwest winds, strong at times becoming South to Southwesterly winds by tomorrow morning.
Overcast with occasional rain, heavy at times with isolated thunderstorms becoming fine by tomorrow morning.
Possibly flash flood at low lying areas due to heavy rain.


FOR THE REST OF TONGA:
Light to to moderate West to Southwesterly winds, fresh at times.
Mainly fine apart from cloudy periods with possible isolated showers.
OUTLOOK FOR WEDNESDAY
FOR ALL OF TONGA:
Light to moderate South to Southeasterly winds.
Mainly fine apart from cloudy periods with possible showers.
TEMPERATURE FORECAST FOR NUKU'ALOFA
MAXIMUM FOR TOMORROW : 29C
MINIMUM FOR TONIGHT : 21C
MARINE WEATHER BULLETIN
WARNINGS
A STRONG WIND WARNING REMAINS INFORCE FOR TONGATAPU, 'EUA AND THE NIUAS COASTAL WATERS.

A HEAVY DAMAGING SWELL REMAINS INFORCE FOR THE NIUAS COASTAL WATERS.

A SMALL CRAFT ADVISORY REMAINS INFORCE FOR ALL TONGA COASTAL WATERS.
FORECAST TO MIDNIGHT TOMORROW FOR ALL TONGA COASTAL WATERS
FOR THE NIUAS COASTAL WATERS:
West to Northwesterly winds 15-20 knots, rising up to 25-30 knots at times becoming South to Southwesterly winds by tomorrow morning.
Rough to very rough seas (3 to 5 metres). A heavy damaging northwesterly swell (up to 4 metres)
Poor visibility in areas of heavy rain and thunderstorm.


FOR TONGATAPU AND 'EUA COASTAL WATERS:
West to Southwesterly winds 15-20 knots, rising up to 25 knots at times.
Moderate to rough seas (2 to 4 metres). A moderate Southerly swell (up to 3 metres).


FOR VAVA'U AND HA'APAI COASTAL WATERS:
West to Southwesterly winds 10-15 knots, rising up to 20 knots at times.
Moderate to rough seas (2 to 3 metres). A moderate Northwesterly swell (up to 3 metres).
OUTLOOK FOR WEDNESDAY
FOR ALL OF TONGA COASTAL WATERS:
South to Southeasterly winds 10-15 knots.
Moderate seas (up to 2.0 meters).
TIDE PREDICTION
LOW TIDE : 10:20PM (Tonight)
HIGH TIDE : 04:35AM (Early Tomorrow Morning)
SUN AND MOON
MOONSET : 03:15AM (Early Tomorrow Morning)
SUNRISE : 06:15AM (Tomorrow)
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 07:00PM WAS 1005.7 MILLIBARS AND THE RELATIVE HUMIDITY WAS 67%.
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FCD: FH/SV/VV/= CRS: TT/HT/=