Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇨🇦 C-GRAX - Boeing 737MAX 8 - WestJet WJA1631/WS1631, Fort Lauderdale/Hollywood (FLL) to Calgary (YYC) - 4.4 mi away @ 36075 ft, heading NW at 481 mph. Spotted 4x before! [05:11:51 PM CST] #C071A4 #C_GRAX #B38M #WESTJET #WJA1631 #WS1631 #ADSB #ADSBbot