The last 24 hours have seen a dramatic increase in thunderstorms to the northeast of Puerto Rico. I have a couple of concerns with this system. First the proximity to the Southeast, and we that we could see further strengthening quickly once the upper low to the west pulls away and weakens. That is expected by Wednesday. The two are intertwined right now, which is an unfavorable situation for development, but this will change in 36 hours. Right now it is travelling west at 20mph At this point it looks unlikely to threaten South Florida, but if it did have any impact it would be around Thursday. If it's given a name it would be TS Danny. BTW, probably the best model out there, the ECMWF, takes the system to the northern Bahamas and then South Carolina coastline on Friday.


![[JavaScript Image Player]](http://moe.met.fsu.edu/tcgengifs/gfs/2009082418/slp9.png)
