Premier 1
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 4.5
Confusion; Distraction
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Executed Go Around / Missed Approach
Human Factors; Procedure
The Local controller had an IFR Aircraft X that executed a go-around due to high winds. The local controller told Aircraft X that if it wanted to enter the pattern and try another approach that it would have to cancel IFR.  The pilot decided to stay in the pattern and try another approach. The local controller said to 'Report cancellation of IFR.'  The aircraft made another go-around due to winds.  Now it is a VFR aircraft in low visibility and low ceilings trying to find another airport. The local controller prompting an IFR aircraft to go VFR goes against the 7110.65 and now put the aircraft in a severe disadvantage; unsafe and possibly confusing situation.  Possible making more work for the TRACON; requiring it to reissue an IFR clearance to get the aircraft another airport.  Controllers not following standard rules or just not knowing the rules increased this risk and workload for this aircraft.  Recurrent training focusing on IFR aircraft controlled by VFR towers is recommended.
BJC Controller reports of another controller prompting a pilot to cancel IFR to remain in the pattern at the airport.