Invest 91B
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Live tracking map, satellite, radar, and forecasts of Invest 91B near the Andaman Islands. Medium chance of development. Current wind speed 45km/h.
Maximum sustained surface winds are around 35–45 km/h (18–23 knots). Minimum sea-level pressure is estimated to be near 1009 hPa.
Enhanced infared satellite imagery shows a partially exposed low-level circulation center (LLCC), with flaring convection near the center and weak banding along the eastern and southern edge.
A 30/02:12 UTC ASCAT-B pass shows a compact, closed circulation with winds up to 37 km/h (20 knots) around the center. Analysis shows a favorable area for development with moderate easterly wind shear (15–20 knots), good westward outflow, and warm sea surface temperatures (29–30°C).
Global ensemble models agree on gradual development of the system during the next 1 to 2 days as it tracks westward.