NW Slowly Fading, Large WNW for Weekend
Alerts (as of 1:00 a.m.)
A High Surf Advisory is posted for the northwest exposed shores of the Big Island through 6:00 a.m. Thursday.
A Small Craft Advisory is posted through 6:00 a.m. Thursday for rough seas from 10 to 15 feet in waters exposed to the northwest swells.
**Click directly on the images below to make them larger. Charts include: Big Island projected winds, tides, swell direction & period and expected wave heights.**
Hilo side: Wave heights for spots exposed to the wrap are expected to be overhead to double overhead at the best breaks on the sets and easing through the day. Trade swell is waist/chest high.
Kona side: Wave heights are expected to be up to overhead on the sets for the best spots with northwestern exposure and tapering off through the day. Out of the south-southwest knee to waist high waves.
South: Out of the southwest knee/waist high today. Trade swell brings waist/chest high waves. Some spots around South Point may get wrap out of the northwest up to overhead on the sets in the morning.
Our current northwest swell is expected to taper off and shift more out of the north over the next couple of days. A second large west-northwest swell is likely Sunday through Monday, resulting in warning-level surf along north and west facing shores, including west facing shores of the Big Island.
Trade swell is expected to remain pretty small at waist/chest high or less.
A south-southwest reinforcement is expected to maintain wave heights for southern shores through Thursday then fade Friday.
Keep in mind, surf heights are measured on the face of the wave from trough to crest. Heights vary from beach to beach, and at the same beach, from break to break.