Marine Weather Statement

A moderate, long-period north swell from 350 to 360 degrees will build across Hawaiian waters on Sunday and peak late Sunday and Monday as the period shortens to 13 seconds. The swell will produce moderate to heavy surges in north-facing harbors, especially at Kahului and Hilo Harbors. Mariners using these harbors should exercise caution when mooring or launching vessels and when entering or leaving port. The swell will diminish Tuesday.