Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter CFTT / CFIT
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Took Evasive Action
Human Factors
Clear day on SUMMA departure; requested a VFR climb to the southwest side of Mt. Rainier through 17;500 then proceed on course; all terrain in sight. Cleared as requested. FO as PF ; pointed jet to southwest side of the mountain; but a 50 kt wind out of the southwest showed the aircraft track direct to the mountain. I noticed this and was about to ask the FO to turn slightly right of course; when we received a terrain warning; which he complied with and warning went away. Terrain always in sight; but we should have adjusted to ground track into the wind to avoid the warning.Better ground track to compensate for wind.
Air carrier Captain reported terrain alert during climb.