Brewster Co TX storm not so Punky but modified NUCAPS was

The modified NUCAPS sounding over Brewster Co TX was more representative of the actual conditions at 20Z versus the regular NUCAPS. A dryline was positioned very near the point of interest and convective initiation eventually occurred  near the boundary in ~1000 ML CAPE air around 22Z.

Modified NUCAPS sounding w/ surface Td near 47F. MLCAPE ~ 1000 J/kg.

Regular NUCAPS sounding w/ surface Td near 54F. ML CAPE ~2000 J/kg.

RTMA Td analysis. Point H is where the NUCAPS sounding was taken from.

GOES-16 RGB at 2150Z showing CI occurring near the dryline.