SHIP WEATHER ROUTING IN THE PACIFIC

H. B. Kaster

Peer Reviewed

Abstract:	the major pacific coast transpacific steamship operators have been using ship weather routing from a shore office since August 1952. The term "ship weather routing" refers to teh determining and following of a route which avoids unfavorable weather conditions and takes advantage of favorable weather conditions in the safest and most economical manner for the specific ship and crossing. Weather routing may be conducted by ship officers or by professional routing personnel with more data in a shore office. "Weather" as used in the term "weather routing" has always been used in teh same general sense as in the word "weather" in "ship weather reports" Ship weather reports include, among other factors, the wind speed and direction, pressure, temperature, etc., and two wave groups which generally represent sea and swell. In weather routing here since 1952, careful condideration has always been given to anticipated seas, anticipated swell heights and periods, and anticipated sea and cross swell combinations. These three different factors may have three quite different effects upon a ship. The art of weather routing has been referred to under at least four other names, but the problems are basically the same under any name.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 12, Number 2
Pages:	108 - 110
Cite this article:	Kaster, H. B., "SHIP WEATHER ROUTING IN THE PACIFIC", NAVIGATION: Journal of The Institute of Navigation, Vol. 12, No. 2, Summer 1965, pp. 108-110.
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