Wet runway

A runway is wet when it is neither dry, nor contaminated. For purposes of condition reporting and airplane performance, a runway can beconsidered wet when more than 25 percent of the runway surface area (within the reported length and the width being used) is covered by any visible dampness or water that is 1/8 inch (3 mm) or less in depth.

Source: AC 150/5200-28E

See also: