Commercial Fixed Wing
Human-Machine Interface; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Flight Crew Returned To Clearance; Flight Crew FLC complied w / Automation / Advisory
Procedure; Human Factors; Airspace Structure
On a Visual Approach backed up with the GPS RNAV. ATC advised rain shower in the vicinity of the approach so planned to turn towards a GPS fix and cleared for the Visual Approach. From 5000 ft. abeam the airport we configured flap 20 on an approximate heading of 347; slowly starting to descend to 4000 ft. at a rate of 300 to 400 ft. per minute. The GPWS alerted for about 3 seconds. We complied with the GPWS and then cleared it.
Air Carrier pilot reported receiving a GPWS alert during a visual approach.