Tonga: Tropical Cyclone Advisory Number 6 for Tonga on Tropical Disturbance 08F

Source: Government of Tonga Country: Tonga
ISSUED FROM THE FUA’AMOTU TROPICAL CYCLONE WARNING CENTRE AT 01:00AM TUESDAY 12 FEBRUARY 2019 TONGAN TROPICAL CYCLONE ALERT REMAINS INFORCE FOR TONGA. WARNINGS: A GALE WARNING REMAINS INFORCE FOR ALL OF TONGA LAND AREAS AND COASTAL WATERS. A HEAVY RAIN AND FLASH FLOOD ADVISORY REMAINS INFORCE FOR ALL OF TONGA. A HEAVY DAMAGING SWELL WARNING REMAINS INFORCE FOR ALL OF TONGA COASTAL WATERS. SITUATION: TROPICAL DEPRESSION TD08F WAS LOCATED NEAR LATITUDE 20.0 SOUTH, LONGITUDE 177.0 WEST OR 230KM WEST OF NOMUKA, 225KM WEST NORTHWEST OF NUKU’ALOFA AT 01:00AM THIS MORNING. THIS SYSTEM IS MOVING SOUTH SOUTHWEST AT THE SPEED OF 10 KNOTS (18KM/HR). THE POTENTIAL FOR THIS SYSTEM TO DEVELOP INTO A TROPICAL CYCLONE IS LOW. ON ITS CURRENT TRACK, TD08F IS EXPECTED TO LIE AT ABOUT 240KM WEST OF NUKU’ALOFA AT 07:00AM THIS MORNING. MEANWHILE, A TROUGH OF LOW PRESSURE LIES SLOW MOVING OVER TONGATAPU AND ‘EUA. ASSOCIATED CLOUDS, HEAVY RAIN AND STRONG TO GALE FORCE WINDS IS EXPECTED TO AFFECT THE GROUP. FOR THE NIUAS: NORTH TO NORTHWEST WINDS 20-25 KNOTS (37-47KM/HR), WITH MOMENTARY GUST UP TO 35-40 KNOTS (57-74KM/HR). MOSTLY CLOUDY AND OVERCAST WITH OCCASIONAL RAIN, HEAVY AT TIMES WITH ISOLATED THUNDERSTORMS. ROUGH TO VERY ROUGH SEAS. A HEAVY DAMAGING NORTHERLY SWELL. POSSIBLE FLASH FLOOD AND SEA FLOODING IN LOW LYING AREAS. FOR HA’APAI AND VAVA’U: NORTH TO NORTHWEST WINDS 20-25 KNOTS (37-47KM/HR), WITH MOMENTARY GUST UP TO 35-40 KNOTS (57-74KM/HR). MOSTLY CLOUDY AND OVERCAST WITH OCCASIONAL RAIN, HEAVY AT TIMES WITH ISOLATED THUNDERSTORMS. ROUGH TO VERY ROUGH SEAS. A HEAVY DAMAGING NORTHERLY SWELL. POSSIBLE FLASH FLOOD AND SEA FLOODING IN LOW LYING AREAS. FOR TONGATAPU AND ‘EUA: EAST TO NORTHEAST WINDS 20-30 KNOTS (37-47 KM/HR) WITH MOMENTARY GUST UP TO 35-40 KNOTS (57-74KM/HR). CLOUDY WITH OCCASSIONAL SHOWERS, POSSIBLY HEAVY AT TIMES. ROUGH TO VERY ROUGH SEAS. A HEAVY DAMAGING NORTHERLY SWELL. POSSIBLE FLASH FLOOD AND SEA FLOODING IN LOW LYING AREAS. TIDE PREDICTION LOW TIDE : 06:25AM HIGH TIDE : 12:49PM THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA’AMOTU AIRPORT AT 01:00AM WAS 1000.9 MILLIBARS AND THE RELATIVE HUMIDITY WAS 99%. THE NEXT TROPICAL CYCLONE ADVISORY ON TROPICAL DEPRESSION 08F FOR TONGA WILL BE ISSUED AT ABOUT 08:00AM THIS MORNING. FCD: MT/LF/SP/TTK/FH/SV/= CRS: TT/UV/=

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