Not in Australian area of responsibility, managed by Fiji Met.

TROPICAL DISTURBANCE ADVISORY NUMBER A6 ISSUED FROM RSMC NADI
Jan 152000 UTC.

TROPICAL DEPRESSION TD04F CENTRE 998HPA WAS LOCATED NEAR 11.9S 173.0E
AT 151800 UTC. POSITION POOR BASED ON HIMAWARI-8 IR AND PERIPHERAL
SURFACE REPORTS. CYCLONE MOVING EAST AT ABOUT 10 KNOTS. MAXIMUM
10-MINUTE AVERAGE WINDS NEAR THE CENTRE ESTIMATED AT ABOUT 25 KNOTS.

DEEP CONVECTION PERSISTENT TO THE NORTH OF LLCC AND ORGANISATION HAS
IMPROVED WITH THE BAND TO THE NORTH TRYING TO WRAP ONTO LLCC. SYSTEM
LIES UNDER MODERATE TO STRONG UPPER DIVERGENCE IN A LOW SHEARED
ENVIRONMENT WITH MODERATE POLEWARD OUTFLOW. SYSTEM STEERED TOWARDS
THE EAST BY THE LOW TO MID LEVEL RIDGE LOCATED TO THE NORTHEAST OF
THE SYSTEM. CYCLONIC CIRCULATION EXTENDS UPTO 500HPA. SST IS AROUND
30 DEGREES CELSIUS.
DVORAK ANALYSIS BASED ON CURVED BAND OF ABOUT 0.30 WRAP ON LOG 10
SPIRAL, YIELDING A DT OF 2.0. MET AND PT AGREE. FT BASED ON DT THUS
YIELDING T2.0/2.0/D0.5/24HRS.



Australian Areas of Responsibility.

Edited by user Thursday, 16 January 2020 8:15:37 AM(UTC)  | Reason: Not specified