The First Alert Weather Team has been keeping an eye on an area of low pressure in the Western Caribbean for several days, and now it has become organized enough for the National Hurricane Center to give it some more attention, designating it Invest 90L. It's an "invested area of interest" over the next 5 days as it most likely moves into the Gulf of Mexico. It has a 40% chance of developing into something tropical.
It could even be our first named tropical system, which would be "Alberto". As of Monday evening, it was a couple of hundred miles east of the coast of Belize. There is a lot of wind shear in the Caribbean and Gulf of Mexico, which is unfavorable for development in the next few days, but gradual development could happen by Friday.
Bottom line, regardless of development, rounds of locally heavy rainfall and afternoon storms will be in the forecast through the end of the week, and at that time we'll have a better handle of where this potential storm may track.