Storm in NW Pacific Generating First Big Swell
Alerts (as of 1:00 a.m.)
A Small Craft Advisory is in effect for our usual windy coastal waters.
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 from knee/chest high today.
Kona side: Wave heights are expected to be below waist high today.
South: Wave heights are expected to be below waist high today. Trade swell will get up to chest high for the best exposures.
Minimal south-southwest energy this week. A small south swell is peaking Friday with knee to waist high waves at the best exposures.
Trade swell continues up to about chest high for exposed breaks.
Back to back pulses out of the North Pacific are lining up this weekend and early next week. The first storm has developed in the northwest Pacific and is sending our first good size northerly swell for the winter season. The Big Island will be mostly blocked. Northwest swell builds late Saturday and peaks Sunday before fading Monday and Tuesday. Another swell is expected to build late Tuesday as well.
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.