Tonga: Tropical Cyclone Advisory Number 4 for Tonga on Tropical Disturbance 08F

Source: Government of Tonga Country: Tonga
ISSUED FROM THE FUA’AMOTU TROPICAL CYCLONE WARNING CENTRE AT 01:00PM MONDAY 11 FEBRUARY 2019 TONGAN TROPICAL CYCLONE ALERT REMAINS INFORCE FOR TONGA. WARNINGS FOR LAND AREAS AND COASTAL WATERS: A GALE WARNING REMAINS INFORCE FOR THE NIUAS, VAVA’U, HA’APAI AND NOW INFORCE FOR TONGATAPU, ‘EUA, TELE-KI-TONGA AND TELE-KI-TOKELAU 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 17.6 SOUTH, LONGITUDE 177.2 WEST OR 335KM WEST OF VAVA’U AT 12:00PM MIDDAY TODAY. THIS SYSTEM IS MOVING SOUTH SOUTHEAST 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 320KM WEST OF VAVA’U AT 3:00PM, 270KM WEST OF HA’APAI AT 9:00PM AND 200KM WEST NORTHWEST OF NUKU’ALOFA AT 3:00AM TOMORROW MORNING. MEANWHILE, A TROUGH OF LOW PRESSURE IS APPROACHING TONGATAPU AND ‘EUA FROM NORTHEAST. 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 30-40 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 NORTHEAST WINDS 20-25 KNOTS (37-47KM/HR), WITH MOMENTARY GUST UP TO 30-40 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 20-25 KNOTS (37-47 KM/HR), INCREASING UP TO 30-40 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 : 06:15PM
HIGH TIDE : 12:15AM (TOMORROW MORNING) THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA’AMOTU AIRPORT AT 01:00PM WAS 1004.6 MILLIBARS AND THE RELATIVE HUMIDITY WAS 94%. THE NEXT TROPICAL CYCLONE ADVISORY ON TROPICAL DEPRESSION 08F FOR TONGA WILL BE ISSUED AT ABOUT 07:00PM THIS EVENING. FCD: OF/MT/SF/GV/PK/VV/NH/AA/JS/= CRS: FV/FL=

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