TROPICAL CYCLONE ADVISORY NUMBER THIRTEEN (13) FOR TONGA ON TROPICAL CYCLONE 
IAN ISSUED FROM THE FUA'AMOTU TROPICAL CYCLONE WARNING CENTRE AT 4:00PM 
WEDNESDAY JANUARY 8TH 2014.

A TROPICAL CYCLONE WARNING 

A GALE WARNING REMAINS IN FORCE FOR NIUAFO'OU

A GALE ALERT REMAINS IN FORCE FOR THE VAVA'U AND HA'APAI GROUPS.

A STRONG WIND WARNING REMAINS IN FORCE FOR NIUATOPUTAPU AND TAFAHI
 
A HEAVY RAIN ADVISORY REMAINS INFORCE FOR NIUAFO'OU, NIUATOPUTAPU AND TAFAHI.

TROPICAL CYCLONE IAN CATEGORY 2 WAS LOCATED NEAR 16 DECIMAL 8 SOUTH 177 DECIMAL 
0 WEST OR ABOUT 200KM SOUTHWEST OF NIUAFO'OU OR ABOUT 380KM NORTHWEST
OF VAVA'U AT 1PM THIS AFTERNOON. TROPICAL CYCLONE IAN HAS ESTIMATED WINDS OF 
50KTS NEAR ITS CENTRE WITH MOMENTARY GUSTS UP TO 65KTS.THE CYCLONE HAS MOVED 
WEST AT 5KTS IN THE LAST 6HRS AND CONTINUES TO INTENSIFY. THE SYSTEM IS EXPECT 
TO BECOME SLOW MOVING THEN TURN AND MOVE SOUTHEAST IN THE NEXT 24HOURS.

ON ITS CURRENT TRACK, TROPICAL CYCLONE IAN MAY BRING DAMAGING GALE FORCE WINDS
TO NIUAFO'OU IN THE NEXT 12 TO 24HRS.

WEATHER FORECAST FOR TONGA:

FOR NIUAFO'OU:
NORTHWEST WINDS 15-20KTS. INCREASING TO 25 TO 35KTS WITH MOMENTARY GUSTS TO 35 
TO 45KTS IN THE NEXT 12 TO 24HRS. RAIN DEVELOPING HEAVY AT TIMES WITH FLASH 
FLOODING EXPECTED.SEAS ROUGH TO VERY ROUGH WITH MODERATE TO HEAVY NORTHWEST
SWELL.

FOR VAVA'U AND HA'APAI GROUPS:
NORTH TO NORTEAST WINDS 10-15KTS INCREASING TO 20-25KTS WITH MOMENTRY GUST TO
30 T0 35KT IN THE NEXT 24 TO 48HR. CLOUDY PERIODS WITH OCCASIONAL SHOWERS 
DEVELOPING TO RAIN IN THE 24 TO 48HRS. SEAS BECOMING ROUGH WITH MODERATE 
NORTHWEST SWELLS.

FOR NIUATOPUTAPU ANF TAFAHI
NORTHWEST WINDS 15-20KTS INCREASING 20-25KTS IN THE NEXT 12 TO 24HOURS. 
CLOUDY PERIODS WITH OCCASIONAL SHOWERS DEVELOPING IN TO HEAVY RAIN.
SEAS BECOMING ROUGH WITH MODERATE NORTHWEST SWELLS.

FOR TONGATAPU AND EUA:
EAST WINDS 10-15KT. MAINLY FINE APART FROM CLOUDY PERIODS WITH FEW SHOWERS.
MODERATE SEAS WITH MODERATE EAST SWELLS. 

TEMPERATURE FORECAST FOR NUKU'ALOFA:
MIN: 24 DEGREES CELSIUS TONIGHT.
MAX: 31 DEGREES CELSIUS TOMORROW.

TIDE PREDICTIONS:   
LOW   TIDE :   07:35PM
HIGH  TIDE :   01:45AM TOMORROW MORNING     

THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AT 4:00PM THIS AFTERNOON
WAS 1004.8MB

THE NEXT TROPICAL CYCLCONE ADVISORY ON TROPICAL CYCLONE IAN WILL BE ISSUED 
AROUND 07:00PM.

FD:OF/SF/NO/STA CRS:TN/TT/SVH=