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

🇺🇸 N8328A - Boeing 737NG 8H4/W - Southwest Airlines SWA1153/WN1153, Phoenix Sky Harbor (PHX) to Baltimore/Washington Thurgood Marshall (BWI) - 6.4 mi away @ 36925 ft, heading E at 589 mph. Spotted 70x before! [03:39:54 PM CDT] #AB6339 #N8328A #B738 #SOUTHWEST #SWA1153 #WN1153 #ADSB #ADSBbot