Hi there,

92L is likely not forming off of Dean...If anything, the Ridge over Dean and the energy coming from the outflow of Dean is likely strengthing the ULL the is currently south of Puerto Rico. That upper level low is providing strong easterly winds over 92L right now. On the last Water Vapor analysis, I noticed a lot of 30kt wind barbs moving over 92L. 92L is also moving at a decent clip, but these ULL winds are a bit to strong right now.

Over 92L, there is a squeeze playgoingon between the ULL south of PR and the ridge to the WNW of 92L that is helping to steer Dean. That is probably helping to amplify the Upper Level Winds a bit too.

Something to potentially watch for...Dean will weaken over the Yucatan, then weaken significantly over mainland Mexico in 36 hours...At that time, the surface energy being transferred into the Upper Levels of Dean (The ridge over him) will weaken also. As a result, the risdge over dean will likely weaken too. Downstream domino effects will probably mean the ULL south of Puerto Rico will weaken also. If so, the shear will be on the decrease, and that is probably art of why the models...as well as the 10:30PM NHC TWO call for more favorable conditions over 92L in the coming days...

As for tonight...some pop-up T-storms around 92L, but nothing significant...92L has quite a ways to go before being a "Tropical Depression Candidate" right now...Worth watching though as things may change in those respects during the coming days.