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TD10F / TC Wasi

22nd February 2020 1900

Hot on the heals of TC Vicky, TC Wasi has now been named. It's likely to follow a similar path. Fiji Meteorological Service has made the following details available.

TROPICAL DISTURBANCE ADVISORY NUMBER A1 ISSUED FROM RSMC NADI Feb 220147 UTC. TROPICAL CYCLONE WASI CENTRE 995HPA WAS LOCATED NEAR 13.7S 173.6W AT 220000 UTC. POSITION FAIR BASED ON HR HIMAWARI-8 EIR AND VIS IMAGERY AND PERIPHERAL SURFACE REPORTS. CYCLONE MOVING SOUTHEAST AT ABOUT 7 KNOTS. MAXIMUM 10-MINUTE AVERAGE WINDS NEAR THE CENTRE ESTIMATED AT ABOUT 35 KNOTS. EXPECT WINDS OVER 33 KNOTS WITHIN 90 NAUTICAL MILES IN NE QUADRANT AND WITHIN 90 NAUTICAL MILES IN SE QUADRANT AND WITHIN 60 NAUTICAL MILES IN SW QUADRANT AND WITHIN 30 NAUTICAL MILES IN NW QUADRANT DEEP CONVECTION CONTINUES TO PERSIST OVER THE LLCC WITH PRIMARY BANDS TRYING TO WRAP ONTO THE LLCC. SYSTEM LIES IN A LOW SHEARED ENVIRONMENT WITH GOOD OUTFLOW. ORGANIZATION GOOD. CYCLONIC CIRCULATION

EXTENTC WASI track 22 FEB 20

 The following video shows the evolution of TC Wasi (Source: Zoom Earth) The time period is from 6am to 7pm on Saturday 22 Feb 2020. It shows the intensification of TC Wasi in an area similar to where TC Vicky intensified around 48 hours ago:

23rd February 2020 at 1800

TC Wasi has moved along the southern coastline of Samoa overnight, and now takes a more south easterly path towards Niue. As at last report it currently lies about half way between Niue and Samoa. The Fiji Meteorological Service has published the following information, and TC Track Map:
TROPICAL DISTURBANCE ADVISORY NUMBER A5 ISSUED FROM RSMC NADI Feb 230143 UTC. TROPICAL CYCLONE WASI CENTRE 994HPA WAS LOCATED NEAR 16.2S 171.2W AT 230000 UTC. POSITION POOR BASED ON HR HIMAWARI-8 VIS IMAGERY AND PERIPHERAL SURFACE REPORTS. CYCLONE MOVING SOUTH SOUTHEAST AT ABOUT 13 KNOTS. MAXIMUM 10-MINUTE AVERAGE WINDS NEAR THE CENTRE ESTIMATED AT ABOUT 35 KNOTS. EXPECT WINDS OVER 33 KNOTS WITHIN 90 NAUTICAL MILES IN NE QUADRANT AND WITHIN 80 NAUTICAL MILES IN SE QUADRANT AND WITHIN 50 NAUTICAL MILES IN SW QUADRANT AND WITHIN 30 NAUTICAL MILES IN NW QUADRANT CONVECTIVE BANDS TRYING TO WRAP ONTO LLCC FROM THE EAST BUT SUPPRESSED ELSEWHERE. SYSTEM LIES IN A LOW SHEARED ENVIRONMENT WITH MODERATE UPPER DIVERGENCE. ORGANIZATION SLIGHTLY IMPROVED. CYCLONIC CIRCULATION EXTENDS UP TO 500HPA. SST AROUND 29 DEGREES CELSIUS. WASI IS CURRENTLY BEING STEERED TO THE SOUTH-SOUTHEAST BY THE SUBTROPICAL RIDGE LOCATED TO THE NORTHEAST OF THE SYSTEM. DVORAK ANALYSIS BASED ON 0.4 WRAP, YIELDING DT=2.5, MET AND PT AGREE. FT BASED ON DT THUS, YIELDING T2.5/3.0/W0.5/24HRS FORECASTS : AT 12 HRS VALID AT 231200 UTC 17.6S 170.3W MOV SSE AT 08 KT WITH 40 KT CLOSE TO CENTRE AT 24 HRS VALID AT 240000 UTC 19.1S 169.5W MOV SSE AT 08 KT WITH 35 KT CLOSE TO CENTRE OUTLOOK : AT 36 HRS VALID AT 241200 UTC 20.7S 168.9W MOV SSE AT 08 KT WITH 30 KT CLOSE TO CENTRE AT 48 HRS VALID AT 250000 UTC 22.2S 168.2W MOV SSE AT 08 KT WITH 30 KT CLOSE TO CENTRE
TC WASI track 23 FEB 20

Zoom Earth shows the general movement of TC Wasi over the last 24 hours (From 5pm 22 Feb to 5pm 23rd Feb)

24th February 2020 2200

TC Wasi is now a Tropical depression, having lost strength overnight. Final track as follows:
TC WASI track 24 FEB 20
 

Related News Reports

These are provided in time order of publication where possible

Twitter Feed

The twitter feed for TC Wasi follows:

TC Vicky managed to get no love over the last 24 h...
TD07F was declared by the Fiji Meteorological serv...
 

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