Large NNE Continues, Eases in the Afternoon
Alerts (as of 1:00 a.m.)
High Surf Warning: North and east shores of Big Island through 6 a.m. Thursday.
High Surf Advisory : West shore of Big Island through 6 a.m. Thursday.
Small Craft Advisory: All waters and channels through 6 p.m. Thursday.
Marine Weather Statement: A large north-northeast swell will continue to impact Hilo harbor with moderate harbor surges and large breaking waves at the harbor entrance. Mariners should use extreme caution when entering or leaving port and when mooring or launching vessels.
Check our breaking news section for any urgent weather alerts or updates to the weather alerts listed above.
**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 are forecast to be overhead to double overhead in some spots today at good exposures along the northeast coast. The best spots could get up triple overhead or more on the sets. North Kohala will be a bit smaller but still good size.
Kona side: Wave heights are expected to be knee/thigh high today.
South: Wave heights are expected to be knee/thigh high today.
Our current large north-northeast swell remains solid through Thursday before fading through the second half of the work week. A larger west-northwest is forecast for Saturday. Another round of surf is expected to fill in Monday, peak Tuesday and ease Wednesday with a smaller northwest on tap for the 11th.
Nothing significant expected out of the South Pacific any time soon.
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.