EMB ERJ 145 ER/LR
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Aircraft Equipment Problem Less Severe; Inflight Event / Encounter CFTT / CFIT
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Took Evasive Action
Aircraft
GPWS terrain alert while on RNAV (GPS) Y 23 into CRW. The alert came after passing ENIVY. We were at the appropriate altitude and vertical speed. The GPWS gave one terrain alert while we were IMC and we executed the escape maneuver. We told ATC and they said they didn't observe any terrain threats. We were vectored around for another attempt and landed with no further GPWS warnings. If the GPWS gives an alert it must be respected.
EMB-145 Captain reported responding to a GPWS terrain alert on approach into CRW that may have been a false warning.