B737 Next Generation Undifferentiated
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Conflict NMAC
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Took Evasive Action
Airspace Structure; Human Factors
We were cleared for the RNAV Visual 31L by SOCAL Approach. Approaching the CEKMA waypoint; Approach advised us of VFR traffic at 11 o'clock and three miles maneuvering below us and climbing. Almost immediately; we received a TA with no bearing as the VFR traffic checked in with SOCAL. He advised that he was in a spiraling climb off Bermuda Dunes airport. SOCAL immediately advised the traffic to stop the climb and fly heading 360. At the same time we received CLIMB RA. I complied with the RA and the FO notified SOCAL. VFR aircraft passed below our aircraft approximately 300 feet below us. Dispatch was notified.VFR traffic not cognizant of proximity to PSP airport and hazards of inbound traffic. ATC informed the VFR aircraft that the spiral climb 'was not a good idea' given his location in relation to PSP.
B737 Captain reported an NMAC with a VFR aircraft in the vicinity of PSP.