South Indian Ocean – Invest 90S
Wednesday, February 2, 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 806 NM southeast of Diego Garcia

According to the JTWC, satellite imagery depicts a broad low level circulation with persistent deep convection in the northern and eastern sectors.

Environmental analysis indicates that the invest is in a generally favorable area of development defined by low (5-10 knot) vertical wind shear, warm sea surface temperatures, and fair equatorward outflow.

Global models are in agreement that invest 90S will slowly drift equatorward over the next 24-48 hours with gradual intensification.

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 is medium.