I do not see any evidence of Alberto overcoming the shear environment even the thunderstorm tops near the LLC are being sheared and if you look at the loops carefully, you can clearly see good speed shear in the motion of the clouds near 30,000 feet. The environment immediately outside the circulation is very dry and of course considerable subsidence. I think realistically Alberto is more a subtropical system than pure tropical. There are other upper air influences involved where there is convective activity. While the LLC may drift northward and yes, some convection will fire there, a closer examination of it's upper environment, clearly is very hostile. It has one shot at strengthening and that is for a new LLC to form near current convection. Realisitcally, I think the evolution of Alberto is subtropical becoming extra-trop, with the impending trough taking up shop near the coast.
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