| TROPICAL CYCLONE ADVISORY NUMBER 11 FOR TONGA ON SEVERE TROPICAL CYCLONE HAROLD (CATEGORY 4) | |
| ISSUED FROM THE FUA’AMOTU TROPICAL CYCLONE WARNING CENTRE AT 12:00AM THURSDAY 09 APRIL 2020 | |
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| TROPICAL CYCLONE WARNING | |
| WARNINGS: | |
| A HURRICANE WARNING REMAINS INFORCE FOR TONGATAPU AND ‘EUA LAND AREAS AND COASTAL WATERS.
A GALE WARNING REMAINS INFORCE FOR HA’APAI, TELE-KI-TONGA AND TELE-KI-TOKELAU LAND AREAS AND COASTAL WATERS. A STRONG WIND WARNING REMAINS INFORCE FOR THE NIUAS AND VAVA’U LAND AREAS AND COASTAL WATERS. A HEAVY RAIN WARNING AND FLASH FLOOD ADVISORY REMAINS INFORCE FOR ALL OF TONGA. A HEAVY DAMAGING SWELL AND SMALL CRAFT ADVISORY REMAINS INFORCE FOR ALL OF TONGA COASTAL WATERS. AN ETREME HIGH TIDE REMAINS INFORCE FOR ALL OF TONGA COASTAL WATERS UNTIL SATURDAY. |
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| SITUATION: | |
| SEVERE TROPICAL CYCLONE “HAROLD” (CATEGORY 4) WAS LOCATED NEAR LATITUDE 20.4 SOUTH, LONGITUDE 178.7 WEST OR ABOUT 30KM NORTH OF ONO-I-LAU (FIJI), 380KM WEST NORTH-WEST OF NUKU’ALOFA, 415KM WEST NORTH-WEST OF ‘EUA, 345KM NORTHWEST OF ‘ATA AT 11:00PM TONIGHT. SEVERE TROPICAL CYCLONE “HAROLD” IS MOVING SOUTH-EAST AT THE SPEED OF 24 KNOTS (48KM/HRS). THE MAXIMUM WINDS NEAR THE CENTER IS ABOUT 100 KNOTS (200KM/HR) WITH MOMENTARY GUSTS OF UP TO 140 KNOTS (260KM/HRS). ON ITS CURRENT TRACK, SEVERE TROPICAL CYCLONE “HAROLD” IS EXPECTED TO LIE AT ABOUT 90KM SOUTHWEST OF NUKU’ALOFA, 100KM WEST SOUTHWEST OF ‘OHONUA, ‘EUA AT ABOUT 7:00AM THIS MORNING. | |
| FOR TONGATAPU AND ‘EUA: NORTH TO NORTHEAST WINDS 15-20 KNOTS (30-40KM/HR), RISING UP TO 25-30 KNOTS (50-60KM/HR) AT TIMES, THEN BECOMING NORTH TO NORTHWEST WINDS AND RAPIDLY INCREASE TO STORM FORCE WINDS 50-60 KNOTS (100-120 KM/HR) WITH MOMENTARY GUSTS OF HURRICANCE FORCE WINDS UP TO 75-95 KNOTS (150-190KM/HR) BY THIS MORNING. OVERCAST WITH FREQUENT OCCASIONAL RAIN, HEAVY AT TIMES WITH SCATTERED THUNDERSTORMS. HIGH TO VERY HIGH SEAS (6-14 METERS). A HEAVY DAMAGING NORTHWESTERLY SWELL (UP TO 6 METERS). POOR VISIBILITY IN AREA OF HEAVY RAIN AND THUNDERSTORMS. EXPECT FLOODING IN LOW LYING AND COASTAL AREAS DUE TO HEAVY, SEA FLOODING AND STORM SURGE.FOR HA’APAI: NORTH TO NORTHEAST WINDS 15-20 KNOTS (30-40KM/HR), RISING UP TO 25-30 KNOTS (50-60KM/HR) AT TIMES, THEN BECOMING NORTHWEST WINDS AND GRADUALLY INCREASE TO GALE FORCE WINDS 34-47 KNOTS (63-87 KM/HR) WITH MOMENTARY GUSTS UP TO 55-60 KNOTS (110-120KM/HR) BY THIS MORNING. OVERCAST WITH OCCASIONAL RAIN, HEAVY AT TIMES WITH ISOLATED THUNDERSTORMS. FOR THE NIUAS AND VAVA’U: |
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| TIDE PREDICTION | |
| LOW TIDE : 02:00AM (THIS MORNING) EXTREME HIGH TIDE : 08:15AM (THIS MORNING) |
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| THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA’AMOTU AIRPORT AT 12:00AM WAS 1005.4 MILLIBARS AND THE RELATIVE HUMIDITY WAS 95%. THE NEXT TROPICAL CYCLONE ADVISORY ON SEVERE TROPICAL CYCLONE HAROLD FOR TONGA WILL BE ISSUED ABOUT 03:00AM THIS MORNING. | |
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| FCD: OF/LF/SP/PK/STP/FV/= CRS: ST/= | |
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Tropical Cyclone Advisory Number 11 for Tonga on Severe Tropical Cyclone Harold (Category 4)
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