Riverboat
A runway doesn't need to have standing water to be classified as wet/wet/wet
Reporting Term Surface conditions
DRY The surface is not affected by water, slush, snow, or ice.
NOTE: Reports that the runway is dry are not normally to be
passed to pilots. If no runway surface report is passed, pilots will
assume the surface to be dry.
DAMP The surface shows a change of colour due to moisture.
NOTE: If there is sufficient moisture to produce a surface film or
the surface appears reflective, the runway will be reported as WET.
WET The surface is soaked but no significant patches of standing water
are visible.
NOTE: Standing water is considered to exist when water on the
runway surface is deeper than 3mm. Patches of standing water
covering more than 25% of the assessed area will be reported as
WATER PATCHES.
WATER PATCHES Significant patches of standing water are visible.
NOTE: Water patches will be reported when more than 25% of the
assessed area is covered by water more than 3mm deep.
FLOODED Extensive patches of standing water are visible.
NOTE: Flooded will be reported when more than 50% of the
assessed area is covered by water more than 3mm deep.