A quick blip...it is normal from mid-morning to late afternoon for pressure falls to diurnally occur. As of 02/1825Z, at least one center is onshore, not that it will matter given it's Louisiana, flat and plenty of marsh (wet) lands and continues to exhibit subtropical characteristics. I share a few opinions that calling this system pure tropical is a stretch; however, if my funding was depended upon identifying it as tropical; I do it. This system will eventually cease to "tropical" as baroclinic processes and big, big trough play their part in veering Katia north. The SE USA will benefit tremendously from this rain; it's been big time dry around here for a spell assuming a half foot doesn't drop on us in a day.