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Primary Swell Direction

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Weather

Prevailing direction of swell propagation.

NOAA National Weather Service — National Weather Service Glossary

Related Weather terms

Combined Seas
Freak Wave
Great Circle Track
Group Velocity
High Surf
Rogue Wave
SEAS
Significant Wave Height
Swell
Swell Direction
Wave Spectrum
Wind Waves

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Definitions are reproduced with attribution to their original sources; each entry links to the source and shows when it was retrieved. About · FAQ · Data build 2026-10-15.