There appears to be a bit of a crosswind
The F-35 has gotten down to about 40 kts on its STOVL tests, and it appears to be performing well.
The video is from Pax River, about 85 miles from me.
H/t ELP Defens(c)e Blog.
Slow speed video of F-35 landing and confusion on the Hill � ELP Defens(c)e Blog
There appears to be a bit of a crosswind