Tropical Disturbance Summary For area Equator to 25S, 160E to 120W
ISSUED FROM RSMC NADI Dec 220836 UTC.
TROPICAL DEPRESSION TD04F [1000HPA] WAS ANALYSED NEAR 16.3S 173.5E AT
220600UTC. TD04F MOVING SOUTH-SOUTHEAST 10 KNOTS. POSITION POOR BASED
ON HIMAWARI-8 EIR SATELLITE IMAGERY AND PERIPHERAL SURFACE
OBSERVATIONS.
CONVECTION REMAINS PERSISTENT OVER SUPPOSED LLCC. ORGANISATION
REMAINS POOR. THE SYSTEM LIES SOUTH OF AN UPPER RIDGE IN A LOW
SHEARED ENVIRONMENT WITH GOOD OUTFLOW. CYCLONIC CIRCULATIONS EXTENDS
UPTO 700HPA. SST AROUND 29 DEGREES CELSIUS.
GLOBAL MODELS HAVE PICKED UP THE SYSTEM AND SLOWLY MOVE IT
SOUTHEASTWARDS WITH SLIGHT INTENSIFICATION.
POTENTIAL FOR THIS SYSTEM TO DEVELOP INTO A TROPICAL CYCLONE IN THE
NEXT 24 TO 48 HOURS IS LOW TO MODERATE.
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NO OTHER SIGNIFICANT TROPICAL DISTURBANCE ANALYSED OR FORECAST IN THE
AREA.
GALE WARNING 002 ISSUED FROM RSMC NADI Dec 221244 UTC.
TROPICAL DEPRESSION TD04F CENTRE [998HPA] WAS ANALYSED NEAR 17.3S 173.7E AT
221200UTC. POSITION POOR. TD04F MOVING SOUTH-SOUTHEAST AT ABOUT 12 KNOTS.
EXPECT CLOCWISE WINDS UP TO 35 KNOTS WITHIN 80 TO 140 NAUTICAL MILES AWAY FROM
TD04F CENTRE IN THE SECTOR FROM SOUTHEAST THROUGH SOUTH TO WEST.