I am planning to hike Whitney on Friday 9/6. My plan is to camp near Consultation Lake, then summit early Saturday morning and make my journey back to Whitney Portal sometime in the afternoon.

I just looked at the forecast and it shows as "Tstorm risk" from 2-8pm. Are T-storms risky at all elevations or are they only a factor when you are close/near the summit? I'm just trying to determine if i should try to grab a walk-up overnight pass for Saturday instead of going on Friday.