ISSUED FROM THE FUA’AMOTU TROPICAL CYCLONE WARNING CENTRE AT 02:00PM MONDAY 01 FEBRUARY 2021
TROPICAL CYCLONE WARNING FOR TONGA
WARNINGS:
A STORM WARNING REMAINS IN FORCE FOR TELE-KI-TONGA AND TELE-KI-TOKELAU AND SURROUNDING COASTAL WATERS.
A GALE WARNING REMAINS IN FORCE FOR HA’APAI, TONGATAPU AND ‘EUA LAND AREAS AND COASTAL WATERS.
A STRONG WIND WARNING REMAINS IN FORCE FOR THE NIUAS AND VAVA’U LAND AREAS AND COASTAL WATERS.
A HEAVY DAMAGING SWELL AND SMALL CRAFT ADVISORY REMAINS IN FORCE FOR ALL OF TONGA COASTAL WATERS.
A HEAVY RAIN WARNING AND FLASH FLOOD ADVISORY REMAINS IN FORCE FOR ALL OF TONGA LAND AREAS.
SITUATION:
Tropical Cyclone ANA (Category 1) was located at latitude 21.3 South and longitude 179.4 East or about 560KM West of Nuku’alofa, 585km West of ‘Eua, 670km West Southwest of Pangai Ha’apai, 755KM West Southwest of Neiafu Vava’u, 830KM Southwest of Niuafo’ou, 935KM Southwest of Niuatoputapu at 1:00pm this afternoon. Tropical Cyclone Ana (Cat 1) is moving South Southeast at about 10 knots (20km/hr). The maximum winds near its center is about 45 knots (90km/hr) with momentary gust of up to 60 knots (120km/hr). On its current track, it could bring destructive storm force winds to Tele-ki-Tonga and Tele-ki-Tokelau and damaging gale force winds over Ha’apai, Tongatapu and ‘Eua about this evening to early tomorrow morning . Associated strong winds, cloudy conditions with periods of heavy rain and thunderstorm continues to affect Tonga.
FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
East to Southeast winds 25-35 knots (50-70 km/hr) rising up to 45knots (90km/hr) at times with a momentary gust up to storm force wind 50-60 knots (100-120km/hr). Very rough to high seas (up to 6-9 meters). A heavy damaging Northwesterly swell (up to 4-6 meters).
FOR HA’APAI, TONGATAPU AND ‘EUA:
North to Northeast winds 15-20 knots (30-40 km/hr) with momentary gust up to 35-40 knots (70-80km/hr) by early tomorrow morning. Cloudy and overcast with occasional rain, heavy at times that will cause flash flood in low lying areas.
Moderate to rough seas (up to 3-4 meters) then become very rough by tonight (up to 4-6 meters). A heavy damaging Northwesterly swell (up to 4 meters). Poor visibility in areas of heavy rain.
FOR THE NIUAS AND VAVA’U: North to Northeast winds 15-20 knots (30-40 km/hr), rising up to 25-30 knots (50 – 60km/hr) at times.
Cloudy and overcast at times with developing occasional rain, heavy at times that will cause flash flood in low lying areas.
Moderate to rough seas (up to 3-4 meters). A heavy damaging Northwesterly swell (up to 4 meters). Poor visibility in areas of heavy rain.
TIDE PREDICTION FOR NUKU’ALOFA
LOW TIDE : 04:20PM
HIGH TIDE : 10:30PM
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA’AMOTU AIRPORT AT 02:00PM WAS 1005.0 MILLIBARS AND THE RELATIVE HUMIDITY WAS 88%. THE NEXT TROPICAL CYCLONE ADVISORY ON TROPICAL CYCLONE ANA (CATEGORY 1) FOR TONGA WILL BE ISSUED ABOUT 05:00PM THIS AFTERNOON.
FCD: TTK/VF/STP/VV/NH/ML/SIV/=
CRS: TT/FV/=