Hazardous seas watch

A Hazardous Seas Watch is issued by the National Weather Service of the United States when there is an increased threat of high wave heights and/or wave steepness values reach a certain criteria, but the occurrence, timing, and/or location are still uncertain. The criteria are set by the local forecast offices. Such tall waves can pose a serious t...
Found on http://en.wikipedia.org/wiki/Hazardous_seas_watch
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