Wiring an outside outlet
Sealed in this case is weatherproof, save your sanity and use something like this:

http://www.homedepot.com/p/Taymac-1-Gang-Horizontal-or-Vertical-Mount-Weatherproof-While-in-Use-Cover-Kit-MKG410C/202284520?N=5yc1vZca29

But feel free to recess it into your house.