There is also some model support for development. The most recent GFS run had a well defined low-level vortex forming in the next 12-24h & moving off to the WNW before encountering dry air to the north near the Cape Verde islands.

We'll soon see how realistic this forecast is... pic.twitter.com/nREl0jUwPy

— Philippe Papin (@pppapin) July 29, 2020