Mash in at 3:45 Boil at 5:15 Second hop addition at 5:55 Cold Crash 12/11
Based on boiling 6.50 gallonsliters at 1.031 for 90 minutes, this will decrease your wort by 1.50 gallonsliters, bringing your after boil OG to 1.038. You wanted an OG of 1.063. It looks like it will be under.