Reno:
Based on the nice graphic, IMHO, the wiring method should be suitable for wet location. Usual install is PVC conduit with THHN/THWN, or UF depending on the 'skills' of the installer.
Masons & landscapers are known to slip in jobs (without permits/inspections) for work like your graphic, with UF stubbed up. Some sleeve UF in the stubs. NMC shows up in HO/DIY jobs occasionally, and would not be acceptable.
