The Beaufort Wind Force Scale

Wind Speed
Wave Height
Wind DescriptionAs Observed At Sea
0Under 1 CalmSea surface as a mirror.
11-30.3Light AirRipples appearing like scales, no foam crests.
24-60.5-1Light BreezeSmall wavelets, crests glassy appearing, not breaking.
37-102-3 Gentle BreezeLarge wavelets, crests begin to break, scattered whitecaps.
411-163 1/2-5Moderate BreezeSmall waves becoming longer, numerous whitecaps.
517-216-8Fresh BreezeModerate waves taking longer form, many whitecaps, some spray.
622-279 1/2-13Strong BreezeLarger waves forming, whitecaps everywhere, more spray.
728-3313 1/2-18Near GaleSea heaps up, white foam from breaking waves begins to be blown in streaks.
834-4019-25GaleModerately high waves with greater length, edges of crests begin to break into spindrift, foam is blown in well marked streaks.
941-4723-33Strong GaleHigh waves as sea begins to roll, dense streaks of foam, spray begins to reduce visibility.
1048-5529-41StormVery high waves with overhanging crests. Sea takes on white appearance as foam is blown in very dense streaks, rolling is heavy and visibility is reduced.
1156-6337-52Violent StormExceptionally high waves. Sea covered with white foam patches, visibility more reduced.
1264-7150 and overHurricaneExceptonally high waves, air filled with foam, sea completely white with driving spray, visibility greatly reduced, barely navigable under storm canvas or bare poles running on proper tack trailing drogue toward navigable semi-circle away from path of storm.
13 - 1772-118 and over50 and overHurricaneExceedingly high waves, air filled with foam, sea obscured by driven spray, visibility nearly impossible, for all purposes not navigable, hove to on parachute sea anchor.

The Voyages of the Atha Windwalker

Barefoot's World
Email Barefoot