Premier 1
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 3.0
Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Provided Assistance; Flight Crew Executed Go Around / Missed Approach
ATC Equipment / Nav Facility / Buildings; Weather; Human Factors
Aircraft X was an LGB arrival. The ILS was out of service and Runway 30 closed. The aircraft was unable to do an RNV (RNP) approach to 26R. He opted for the VOR Circle to 26R approach. Once on the approach and switched to the advisory frequency he began a descent for the airport. The Low Altitude Alert went off. I gave the pilot the low altitude alert just in case he was still on frequency. He came back on frequency saying that he was executing a missed approach. The ceilings were too low for them to get the airport safely. The pilot decided to divert safely to [another nearby airport].We've had this issue in the past were a Low Altitude Alert goes off on Runway 26 approaches. In this scenario I'm not sure if the pilot was trying to get under the layer by bypassing the approach restrictions or if it was the usual Low Altitude Alert we have gotten in the past.
SCT Controller reported a low altitude on an aircraft into LGB runway 26R and wondered if it was an actual low altitude alert or one that might have been in error.