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

🇨🇦 C-GAWS - Boeing 737NG 8CT/W - WestJet WJA1591/WS1591, Hartsfield - Jackson Atlanta (ATL) to Calgary (YYC) - 4.3 mi away @ 37250 ft, heading NW at 486 mph. Spotted for first time! [05:41:52 PM CDT] #C046F7 #C_GAWS #B738 #WESTJET #WJA1591 #WS1591 #ADSB #ADSBbot