Tropical Cyclone 04B / Invest 93W
Thursday, August 18, 2022

Current Snapshot

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By PDC’s Senior Weather
Specialist Glenn James

Tropical Cyclone 04B is located 115 NM south-southeast of Kolkata, India


Northeast Pacific:

There are no tropical cyclones nor any areas of disturbed weather under investigation by the NHC

Central Pacific:

There are no tropical cyclones, nor any areas of disturbed weather under investigation by the CPHC

Northwest and Southwest Pacific Ocean, Indian Ocean, Arabian Sea:

Northwest Pacific Ocean

According to the JTWC, there’s an area of disturbed weather being referred to as Invest 93W, which is located approximately 910 NM southeast of Taipei.

Animated enhanced infrared satellite imagery depicts extensive flaring clusters of deep convection associated with the strong low level convergent flow…disorganized deep convection with no evidence of a defined low level circulation center.

Environmental analysis reveals marginally favorable conditions for development defined by low (5-10 knot) vertical wind shear and very warm sea surface temperature values offset by convergence aloft.

Global models are in general agreement that invest 93W will consolidate with a defined low level circulation center forming as it tracks west-northwestward over the next 24-48 hours.

Maximum sustained surface winds are estimated at 15 to 20 knots. 

The potential for the development of a significant tropical cyclone within the next 24 hours is low.

North Indian Ocean

Tropical Cyclone 04B

According to the JTWC warning number 2…sustained winds are 40 knots, with gusts to near 50 knots