Invest 90L is still running a little bit dry in 3 out of 4 quadrants, but that could end within the next 24 hours as convection keeps blowing up at least in the northeastern quad, helping to mix out the dry air still present from its days as a purely extra-tropical low.
There has been some speculation as to whether or not this system should have been re-tagged 91L. It seems like a reasonable debate, but one that is purely academic as to whether or not the feature actually becomes an officially number or named cyclone in the 2009 records.
As a matter of interesting discussion, 90L was originally identified as the mid-level cyclone near eastern Cuba which was associated with a surface trough. This feature has since become intertwined with the former extra-tropical low and associated frontal boundary which had been stalled out over Florida.
As of tonight, pressures within the surface low that is Invest 90L continue falling a bit, and persistent, deep convection continues building about its center of circulation. Winds are now running sustained above 20 knots over a fairly big area, but no doubt due in no small part to the pressure gradient from the higher pressure over the southeast, more than anything else, so far.
Due to 90L's proximity to land, it would only be reasonable for NHC to exercise a little bit of caution and indeed send a recon out in there Saturday, if 90L has not yet improved in structure dramatically overnight, such that they would even be inclined to assign it a TC/STC number without any additional data from recon.
Regardless of whether 90L earns itself an officiated status or not, this system has a history of dumping copious rains over a large area of real estate, and now is once again partially responsible for plenty of gusty winds. Holiday plans right along and off the coast, and holiday travel in this entire area, should certainly be made with some extra consideration.
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