Narrative:

Baf tower requested release for aircraft X off runway 20; my trainee issued a heading 240 degrees and released off runway 20. The pilots called airborne and were issued a climb to 10;000 feet prior to radar identification by the trainee. I observed the primary targets off the wrong direction; apparently departing opposite direction operation (odo) runway 2. I overrode my trainee and issued a traffic alert to aircraft X reference aircraft Y who was VFR east of the field on vectors to cef. Aircraft X reported the traffic in sight and that he was clear of them. I verified the number in flight as I was not near the flight progress strip and seeing the second aircraft in flight I issued a traffic alert to [the other aircraft in the flight] as well. The aircraft X flight continued on without issue.

Google
 

Original NASA ASRS Text

Title: A TRACON Controller reported that aircraft were supposed to depart in one direction; but ended up departing in the opposite direction.

Narrative: BAF Tower requested release for Aircraft X off Runway 20; my trainee issued a heading 240 degrees and released off runway 20. The pilots called airborne and were issued a climb to 10;000 feet prior to radar identification by the trainee. I observed the primary targets off the wrong direction; apparently departing Opposite Direction Operation (ODO) Runway 2. I overrode my trainee and issued a traffic alert to Aircraft X reference Aircraft Y who was VFR East of the field on vectors to CEF. Aircraft X reported the traffic in sight and that he was clear of them. I verified the number in flight as I was not near the flight progress strip and seeing the second aircraft in flight I issued a traffic alert to [the other aircraft in the flight] as well. The Aircraft X flight continued on without issue.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.