South Indian Ocean – Invest 98S
Thursday, April 28, 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 98S…which is located approximately 457 NM north-northwest of Learmonth, Australia

According to the JTWC…satellite imagery depicts deep convection obscuring a low-
level circulation.

Environmental analysis reveals marginally favorable conditions for development defined by robust poleward outflow aloft and warm sea surface temperatures offset by
moderate 20-25 knot vertical wind shear.

Global models are in good agreement that invest 98S will track into an area of high
vertical wind shear and will dissipate within the next 24-36 hours.

Maximum sustained surface winds are estimated at 28 to 33 knots.

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