Tropical storm Paulette forms, sets record as earliest named ‘P’ storm in Atlantic

Tracking the Tropics

BIRMINGHAM, Ala. (WIAT) — Tropical Depression 17 has now strengthened into Tropical Storm Paulette in the Central Atlantic. The storm is still a long way out from being any sort of threat to the mainland U.S., but it bears watching.

Paulette is the 16th named storm of the 2020 Atlantic hurricane season. It is also the earliest 16th named storm of any Atlantic season by 10 days. The previous record was Philippe, which formed on Sept. 17, 2005.

Although it is elongated, the tropical storm’s structure seems to have improved over the past few hours, with convection increasing in both coverage and organization. Although moderate southerly shear and some dry environmental air appear to be limiting factors, most of the intensity guidance suggests that modest strengthening is likely for the next couple of days. Near the end of the week, the models indicate that Paulette’s winds will plateau or possibly decrease. This appears to be the result of increasing southwesterly shear associated with a upper-level trough that is forecast to deepen over the central Atlantic on Thursday and Friday. The official intensity forecast remains very near the multi-model consensus.

Paulette has moved very little during the past few hours, but a west-northwestward to northwestward motion is expected to resume shortly. Fluctuations in the strength of a mid-level ridge over the western and central Atlantic will likely cause Paulette’s exact speed and heading to fluctuate during the next several says, but the guidance agrees that it should generally head northwestward through the end of the week. It is likely that the stronger Paulette gets, the farther north it will move since the aforementioned upper-level trough will have a greater influence on its track. The NHC track forecast is based on a blend of the previous forecast and the latest multi-model consensus.


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