Invest 91B
Wednesday, May 10, 2023

Current Snapshot

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By PDC’s Senior Weather
Specialist Glenn James

Current Tropical Cyclones:

There are no tropical cyclones


North Indian Ocean

>>> There’s an area of disturbed weather being referred to as Invest 91B, which is located approximately 225 NM west of Port Blair.

Enhanced infrared satellite imagery and a microwave pass depict a partially exposed low-level circulation (llc) with the majority of convection offset to the west of the llc and formative banding wrapping into the east.

Environmental analysis reveals that 91B is currently in a marginally unfavorable environment for intensification as reflected by moderate to high (20-25 knot) vertical wind shear, a wedge of mid-level dry air to the north-northwest of the llcc, and moderate poleward outflow…sea surface temperatures are still very warm.

Deterministic models are in agreement that 91B will continue to steadily consolidate, as it tracks north-northeastward.

Maximum sustained surface winds are estimated at 27 to 32 knots. 

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