By PDC’s Senior Weather
Specialist Glenn James
There’s a tropical disturbance being referred to as Invest 91B…which is located approximately 587 NM west-southwest of Phuket, Thailand
According to the JTWC…satellite imagery shows large, disorganized clusters of deep convection flaring over a broad low-level circulation. A color composite microwave image shows a broad, weakly defined low-level circulation center with poorly-organized deep convective organization.
Environmental analysis is marginally favorable with developing poleward outflow and warm sea surface temperatures offset by moderate to high (20-30 knot) vertical wind shear.
Numerical models continue to indicate slow development over the next few days as the disturbance tracks generally eastward.
Maximum sustained surface winds are estimated at 18 to 23 knots.
The potential for the development of a significant tropical cyclone within the next 24 hours remains low.