hemisphere - Half of a sphere. On the globe hemispheres are used to describe the halves of the earth north or south of the equator.
high tide - The point of a tide when the water is the highest. The opposite of low tide.
In the Northern Hemisphere, the north star can be used to roughly determine latitude. Using a sextant, the degrees the star is above the horizon will roughly equally the ship's position in latitude.
Clockwise in the southern hemisphere, counter-clockwise in the northern hemisphere. Backsplice A method of weaving the end of a rope to keep it from unraveling. Bail To remove water from a boat, as with a bucket or a pump.
KNOT, a Limicoline bird very abundant at certain seasons on the shores of Britain and many countries of the northern hemisphere.
In the northern hemisphere that is generally from the NE, while in the southern hemispere the trade winds blow from the SE. The trade winds are present over all the oceans except the Indian Ocean, north of the equator.
The vast majority of lakes on Earth are fresh water, and most lie in the Northern Hemisphere at higher latitudes. In ecology the environment of a lake is referred to as lacustrine.
This works only for the Northern Hemisphere; in the South, it's reversed. Combined with a feeling for the direction weather moves, you can use this to make forecasts. Submitted by David H. Shaffer.
Red sky at morning, Sailors take warning.
Polaris, the North Star, is visible in the northern hemisphere and indicates the direction of north. In the southern hemisphere the Southern Cross is used to find the direction of south.
north wind, northerly wind
Wind coming from the north.
A strong tropical revolving storm of force 12 or higher in the southern hemisphere. Typhoons revolve in a counterclockwise direction. In the northern hemisphere these storms revolve clockwise and are known as hurricanes.
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The changing of the wind direction, opposite of veering. Clockwise in the southern hemisphere, counter-clockwise in the northern hemisphere.
A method of weaving the end of a rope to keep it from unraveling.
Backing {wind}: Wind changing its direction, counter-clockwise in the northern hemisphere, clockwise in the southern hemisphere; opposite of veering.
Veer
A shifting of the wind direction, clockwise in the Northern Hemisphere, counter-clockwise in the Southern Hemisphere.
1) A hurricane or other very intense storm, usually in tropical regions. 2) A low-pressure system. An anticyclone is a high-pressure system. 3) Cyclonic winds rotate counter-clockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere.
This delay ranges from 2 hours in the southern hemisphere where waves can travel around the globe unimpeded, to as much as 2 days in the North Sea.
Burdened Vessel - Any boat that must give way to another having the right of way.
By the Lee - That part of the hemisphere, as one stands on shipboard, toward which the wind blows.
Hurricane-A strong tropical revolving storm of force 12(65 mph) or higher in the northern hemisphere. Hurricanes revolve in a clockwise direction.
Hypothermia -- the loss of body heat -- is the greatest danger for anyone in the water.
Hurricanes in the northern hemisphere revolve in a counterclockwise direction.
Hypothermia -- the loss of body heat -- is the greatest danger for anyone in the water. As the body loses its heat, body functions slow down.
 See also: South, Line, Boat, North, Wind
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