While recon does show a trend of weakening which is basically negligible at this point, the wv sat images taken 15 min before and 15 min after the recon still show a very significant increase in convection in the core, which is just offshore.
Pressure is solidly in the Cat 4 range and the temp diff at the eyewall is still 6 deg. The limited Cat system has to officially stay at a 3 because it is based on the max sustained surface winds, but the strength of this storm still has potential beyond a Cat 3, of course in terms of surge, and I would assume in terms of localized wind gusts as well.
Starting about 30 to 60 minutes ago this powerful central area of convection was at the coast between Galveston and Intracoastal City, with what looks like the deepest area of convection about to hit right at the TX/LA state line. The convection is still very strong even over portion that extends the first 5 miles inland, probably because of the low marshy elevation.
Just pulled this from Jeff Master's Wunderground blog as it is applicable and does explain the increase in convection:
"Radar shows some very intense echoes in the northern eyewall smashing into the coast, and infrared satellite imagery confirms the presence of extremely cold cloud tops in the northern eyewall. It appears that the interaction of the eyewall with land is producing extra surface convergence of winds that is forcing up some strong updrafts, creating very high thunderstorm tops."
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