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Marine TermsRelated Terms
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In Context
Open Sea is one of 7 terms classified under Marine Terms in the azifind.com Typhoon Wiki. Understanding where a term sits within its category clarifies how it relates to the stages, warnings, or hazards around it during an active tropical cyclone.
Related Terms in Marine Terms
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Coastal Waters
Coastal waters are the sea areas close to shore, generally more sheltered than open or offshore waters but still subject to PAGASA's marine advisories during a typhoon.
Fishing Advisory
A fishing advisory warns fishing operators of unsafe sea conditions, often tied to a gale warning or rough sea state during a nearby tropical cyclone.
Offshore Waters
Offshore waters are sea areas beyond the coastal zone but not yet in the open sea, typically experiencing rougher conditions than coastal waters during a passing tropical cyclone.
Small Craft Advisory
A small craft advisory is a PAGASA notice warning small fishing boats and recreational vessels to avoid sailing due to hazardous wind or wave conditions.
Swell Direction
Swell direction indicates where incoming ocean swell is traveling from, information used by mariners and coastal communities to anticipate wave impact even before a storm arrives.
Wave Period
Wave period is the time between successive wave crests, a figure used alongside wave height to assess how hazardous sea conditions are for vessels.
This definition is part of the azifind.com Typhoon Wiki, informed by PAGASA and the World Bank/GFDRR catastrophe risk data used across our province pages. View all Typhoon Wiki terms →