South Indian Ocean – Invest 90S
Saturday, March 12, 2022

Current Snapshot

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By PDC’s Senior Weather
Specialist Glenn James

There’s a tropical disturbance being referred to as Invest 90S…which is located approximately 297 NM south-southeast of Jakarta, Indonesia

According to the JTWC…satellite imagery shows consolidating convection overhead a low level circulation.

Environmental analysis indicates favorable conditions for development defined by, strong radial outflow aloft, low to moderate (10-15 knot) vertical wind shear, and warm sea surface temperatures.

Global models are in good agreement that invest 90S will generally track west-southwestward, however they are split on intensification with ECMWF showing slower development over the next 24-48 hours.

Maximum sustained surface winds are estimated at 20 to 25 knots.

The potential for the development of a significant tropical cyclone within the next 24 hours remainsmedium.