southern pacific Tropical Cyclone Tuni

[Somerset Squall]

A tropical cyclone named Tuni has formed in the South Pacific, a couple hundred miles west of Pago Pago, American Samoa. JTWC estimate winds to be at 40kts. Tuni has good banding features and slightly displaced central convection due to moderate northwesterly shear. This shear should prevent Tuni from becoming too intense as it tracks towards the southeast, but will not be enough to stop some strengthening. JTWC indicate a peak of 55kts, likely to occur within the next 24-36hrs, because after, shear will rise to destructive levels, and sea temperatures will decline along track, initiating extratropical transition.

Edited November 28, 2015 by Somerset Squall

[Somerset Squall]

Tuni has not strengthened beyond 40kts. Shear has continued to plague the cyclone, shearing convection away from the LLCC. Extratropical transition will begin very soon as the system continues to slip southeast.