According to HDOBS from recon... dew points are extremely low and also note the lack of convection and precipitation on the NW, W side of the system. The envelope of circulation is large. ASCAT pass at 2101Z shows a solid trough extending west to west-northwest of the CoC; what is either a decaying stationary front or surface trough. The wind field is fairly unifom all the way around. Upper low is about to exit FL near the Big Bend area continues to support the surface low. I continue to believe were looking at a subtropical system for the near term.