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

🇺🇸 N8650F - Boeing 737NG 8H4/W - Southwest Airlines SWA2843/WN2843, Baltimore/Washington Thurgood Marshall (BWI) to Phoenix Sky Harbor (PHX) - 4.5 mi away @ 36250 ft, heading W at 478 mph. Spotted 91x before. [11:10:15 AM CDT] #ABE3C8 #N8650F #B738 #SOUTHWEST #SWA2843 #WN2843 #ADSB #ADSBbot