Vorticity just didn't drop south it dragged more and stayed more with the northern parent low rather than digging towards the Gulf.
The companion from the west is also later and weak. So, your development of the 2ndary is delayed & slower to unfold is all. pic.twitter.com/aHN4n8EAKI

— crankyweatherguy (@crankywxguy) January 28, 2019