Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 100; Flight Crew Total 4000; Flight Crew Type 1000
Deviation - Speed All Types; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Unstabilized Approach; Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence
Flight Crew Became Reoriented
Human Factors
We were on a visual approach to Runway XX at ZZZ.  During the approach we received a GPWS Caution 'Terrain' or 'Too Low Terrain' just after the '500 ft stable' call. As the PM (Pilot Monitoring); I failed to call for a go-around.  The PF (Pilot Flying); Captain completed the approach and landing uneventfully. Everything about the approach was normal and I have seen it many times in my 3 years here. PF was stable at 100 ft above field elevation as well as at 500 ft above field elevation; the only exception was that the winds that had recently shifted and gusting were causing the airspeed to deviate by plus or minus 10 knots; but not dramatically.  The fact that we were visual with the runway; on path and speed and properly configured; made the GPWS caution surprise me. After hearing it; I reverified that we were within all our approach criteria and it appeared safe so I did not call for the go around. However; being that it was not day VMC; I should have called it. In the future I will be sure to comply with the GPWS alert immediately and call for the go-around.
B757 Captain reported a GPWS warning on final approach and elected to continue to land instead of calling for a go around.