Southwest Pacific Ocean – Remnants of Sub-Tropical Cyclone 23P
Saturday, April 9, 2022

Current Snapshot

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By PDC’s Senior Weather
Specialist Glenn James

Remnants of Subtropical Cyclone 23P is located approximately 231 NM southeast of Noumea, New Caledonia.

According to the JTWC, the system is currently classified as a subtropical storm, generally characterized as having both tropical and mid-latitude cyclone features.

Satellite and microwave imagery depicts a low-level center that is fully exposed, with sheared convection to the southeast.

Environmental analysis depicts an unfavorable environment for redevelopment of a tropical cyclone characterized by strong (25+ knot) vertical wind shear with 23P slowly embedding itself in the upper level westerlies and cool sea surface temperatures.

With 23P embedding itself in the mid-latitude jet, global models agree that 23P will transition to an extratropical system as a major short wave trough approaches from the southwest in 52-70 hours.

Maximum sustained surface winds are estimated at 33 to 38 knots.

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