ΔE 24.7, loose: different enough that you should pick on purpose. Nocturne Skin is noticeably lighter, warmer than Thunder Storm.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Nocturne Skin is noticeably lighter, warmer than Thunder Storm.
The same difference applies the other way round: Thunder Storm is noticeably darker, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Thunder Storm on the colour wheel See Nocturne Skin on the colour wheel
All matches: Thunder Storm equivalents · Nocturne Skin equivalents