Tropical Cyclone 06L (Fiona) is now active over the Atlantic Ocean…located about 840 miles west of the Cabo Verde Islands
Tropical Depression 06L remains active in the Atlantic Ocean…and will soon strengthen into a tropical storm named Fiona
Tropical Depression 06L is moving toward the west-northwest at near 15 mph.
According to the National Hurricane Center (NHC), the depression’s overall cloud pattern and low-level wind field have continued to improve.
The modest northeasterly wind shear across the tropical cyclone is forecast to weaken and veer to the southeast during the next 12 hours, and remain less than 10 knots for the next 36-48 hours…which typically favors strengthening.
Sea-surface temperatures are marginal for intensification and the small system will be moving through dry mid-level air, with humidity values dropping below 50 percent by 48 hours and beyond, conditions that are generally not conducive for significant strengthening.
But given the tight inner-core wind field, the cyclone is expected to be able to mix out any dry air intrusions, and slowly strengthen for about the next 48 hours. By 72 hours and beyond, however, increasing southwesterly to westerly wind shear is expected to induce gradual weakening.
The NHC model guidance is in good agreement on the cyclone moving west-northwestward to northwestward for the next 48 hours or so. After that, however, there is significant divergence in the models, and as a result, the forecast track depends heavily on the strength and vertical structure of the cyclone.
Tropical Cyclone 06L