The stage on a fixed river gauge at which it is necessary to begin issuing warnings or river forecasts if adequate precautionary measures are to be taken before flood stage is reached.

(1) To warp is to move a vessel by lines - move a boat by hauling on lines attached to docks or anchors. (2) The longitudinal threads in canvas and other textiles. (3) Hawser used when warping. (4) The line by which a boat rides to a sea anchor. (5) Moori ...

A winch used solely for warping, on which a rope may be wound under power but not stored.

(1) Broken water at bow of a vessel making way. (2) Disturbed water made by a propeller or paddle wheel. (3) The rush or sweeping of waves on a bank, shore, or vessel.

A thin, inhibiting paint, usually chromate pigmented with a polyvinyl butyrate binder.

Boards used to close the companionway.

Said of a vessel when she is shipping water on deck and it is running off through scuppers and freeing ports.

Cotton yarn used for cleaning purposes.

Bell used for striking the half hours of each watch.

A buoy moored near a Lightship from which she can check her position to make sure that she has not moved by dragging.

A canvas cover secured over a funnel when not in use. Sailor's headwear, woolen type, capable of covering the ears in cold weather.

An officer taking his turn as officer of the watch.

Dihydrogen oxide, molecular formula H2O.

Balance of the water resources of a region, comparing precipitation and inflow with outflow, evaporation, and accumulation.

Sea water used for ballast, let into the double bottom, or into a water-ballast tank, or trimming tanks.

A small cask carried in ship's boats for drinking purposes.

Small cask used for carrying drinking water in a boat.

See hydrologic accounting.

Machines cooled by water circulated through jackets surrounding the cylinders or casings.

The depth of water that would result from the melting of snow or ice, assuming measurement on a horizontal surface and no infiltration or evaporation.