TROPICAL CYCLONE ADVISORY NUMBER 5 FOR TONGA ON TROPICAL DISTURBANCE TD08F
ISSUED FROM THE FUA’AMOTU TROPICAL CYCLONE WARNING CENTRE AT 07:00PM MONDAY 11 FEBRUARY 2019
TONGAN
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TROPICAL CYCLONE ALERT REMAINS INFORCE FOR TONGA.
WARNINGS FOR LAND AREAS AND COASTAL WATERS:
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 19.3 SOUTH, LONGITUDE 176.7 WEST OR 225KM WEST NORTHWEST OF NOMUKA, 250KM WEST NORTHWEST OF HA’APAI AND 295KM WEST SOUTHWEST OF VAVA’U AT 6:00PM THIS EVENING. THIS SYSTEM IS MOVING SOUTH 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 190KM 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 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 OCCASIONAL 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
HIGH TIDE : 12:15AM TONIGHT
LOW TIDE : 06:25AM TOMORROW MORNING
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA’AMOTU AIRPORT AT 07:00PM WAS 1001.7 MILLIBARS AND THE RELATIVE HUMIDITY WAS 98%.
THE NEXT TROPICAL CYCLONE ADVISORY ON TROPICAL DEPRESSION 08F FOR TONGA WILL BE ISSUED AT ABOUT 01:00AM TONIGHT.
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FCD: OF/MT/SF/GV/PK/VV/NH/AA/= CRS: FV/FL=