00z soundings give insight to why tomorrow is a big deal.

80F dew point at Corpus Christi, 4285J/kg MLCAPE at Brownsville (h/t @JakeMulholland1), 72kt 500mb wind at Albuquerque.

These values are among records in their own right, and will be converging tomorrow in N TX and OK. pic.twitter.com/VPuGUZ8fOB

— Sam Lillo (@splillo) May 20, 2019