It is up to each company to make there appropriate SOP. TC would then sign off.
Initially it went along the lines of
PF/PNF
100 above/check 100 to go
minimums lights in sight continue or nothing seen go around
down to 100 AGL
runway in sight, I have control/ you have control I'm inside.
The F/O now PNF would make the appropriate Radalt call 50-10ft, and on rollout 60 kts. At this time he would look outside, and see just how cruddy it was.