TROPICAL CYCLONE ADVISORY NUMBER 4 FOR TONGA ON TROPICAL DISTURBANCE 06F
ISSUED FROM THE FUA’AMOTU TROPICAL CYCLONE WARNING CENTRE AT 08:00AM THURSDAY 07 FEBRUARY 2019 TONGAN
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A TROPICAL CYCLONE ALERT REMAINS INFORCE FOR THE NIUAS.WARNINGS FOR LAND AREAS: A GALE WARNING REMAIN INFORCE FOR THE NIUAS LAND AREAS AND COASTAL WATERS.
A STRONG WIND WARNING REMAINS INFORCE FOR VAVA’U, HA’APAI, TONGATAPU, ‘EUA, TELE-KI-TONGA AND TELE-KI-TOKELAU LAND AREAS AND COASTAL WATERS.
A HEAVY RAIN WARNING AND FLASH FLOOD ADVISORY REMAINS INFORCE FOR ALL OF TONGA.
A HEAVY DAMAGING SWELL WARNING REMAIN INFORCE FOR THE NIUAS COASTAL WATERS.
SITUATION:TROPICAL DEPRESSION 06F WAS LOCATED NEAR LATITUDE 11.2 SOUTH, LONGITUDE 175.7 WEST OR 487KM NORTH OF NIUAFO’OU, 569KM NORTH NORTHWEST OF NIUATOPUTAPU AT 01:00AM EARLY THIS MORNING. THIS SYSTEM IS SLOW MOVING AND HAS THE POTENTIAL TO DEVELOP INTO A TROPICAL CYCLONE IN THE NEXT 48 HOURS. MEANWHILE, A TROUGH OF LOW PRESSURE LIES SLOW MOVING OVER THE GROUP. ASSOCIATED CLOUDS, HEAVY RAIN AND STRONG WINDS WILL AFFECT THE GROUP.FOR THE NIUAS:
NORTHEAST WINDS 15-20 KNOTS (27-37 KM/HR), GRADUALLY INCREASING TO STRONG WINDS 30-35 KNOTS (55-65 KM/HR), WITH MOMENTARY GUSTS OF UP TO 40 KNOTS (75KM/HR) LATER TODAY.
MOSTLY CLOUDY WITH OCCASIONAL RAIN, HEAVY AT TIMES WITH ISOLATED THUNDERSTORMS.
ROUGH TO VERY ROUGH SEAS. A HEAVY DAMAGING NORTHEASTERLY SWELL.
FOR VAVA’U AND HA’APAI:
EAST TO NORTHEAST WINDS 15-20 KNOTS (27-37 KM/HR), GRADUALLY INCREASING TO STRONG WINDS 25-30 KNOTS
(45-55 KM/HR) AT TIMES. CLOUDY WITH OCCASIONAL RAIN, HEAVY AT TIMES WITH POSSIBLE ISOLATED THUNDERSTORMS.
ROUGH SEAS. A MODERATE NORTHEASTERLY SWELL.
FOR TONGATAPU AND ‘EUA:
EAST TO NORTHEAST WINDS 15-20 KNOTS (27-37 KM/HR), GRADUALLY INCREASING TO STRONG WINDS 25-30 KNOTS (45-55KM/HR) AT TIMES. MOSTLY CLOUDY WITH OCCASSIONAL SHOWERS, POSSIBLY HEAVY FALL WITH ISOLATED THUNDERSTORMS.
ROUGH SEAS. A MODERATE SOUTHEASTERLY SWELL.
TIDE PREDICTION
HIGH TIDE : 09:30AM
LOW TIDE : 03:25PM
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA’AMOTU AIRPORT AT 8:00AM WAS 1007.5 MILLIBARS AND THE RELATIVE HUMIDITY WAS 97%.
THE NEXT TROPICAL CYCLONE ADVISORY FOR TONGA WILL BE ISSUED AT ABOUT 02:00PM TODAY (07/02/2019)
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FCD: GV/PK/NH/STT= CRS: FL/FV/=