2 caveats to posts above:
1)
Originally Posted by Intruder
If you encounter controllability problems on the runway due to hydroplaning, consider a rejected landing.
- remember that once the reversers have deployed (which
should be quickly!) a 'rejected landing' is
not a good idea and is forbidden in most operations.
2) As you all reach for your calculators and tech notes, remember that 9 root p is only valid for PSI in the tyre and knots on the ASI