Updated Saturday 10 a.m. ET

The National Hurricane Center is painting a large potential development area for the disturbance just moving off Africa. The disturbance is large and ill-defined, but it is showing some signs of a circulation, and it's carrying a lot of moisture. The strong consensus of the various computer forecasts is that it will continue in the general direction of the Caribbean for most of next week.

Unlike the previous disturbance that was tagged Invest 96L, which is tracking north into the central Atlantic, blocking high pressure will keep this system moving basically east to west for several days.

The big questions are: 1) When will it fight off the dust and dry air sufficiently to develop and organize circulation with sustained thunderstorms, and 2) How will the stee

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