The tropical wave/mid-level low combo approaching the Yucatan has now been added as an Invest (Link to close-up IR). Despite repeated proclamations to the contrary, it is getting to be very hard to argue against a northward component to its movement and development, and even the 8PM TWD now explicitly describes it as being over water "A STRONG TROPICAL WAVE IS OVER THE WESTERN CARIBBEAN ALONG 85W S OF 22N. "

Upper-level winds over the last several hours have become increasingly favorable, with high pressure forming aloft, inducing some outflow in just about all quadrants.

The low pressure which exists just above the surface to the SE of North Carolina has plenty of time to develop while over the toasty gulf stream and nearby waters. Upper-level winds are only marginal, but are expected to become at least somewhat more favorable over the next day or so. Probably a fish spinner if it transitions, but that's no guarantee.

Really, these two are already very close to land, and bear close watching. 94L is at least 48 hours before affecting the Antilles.