Hurricane Tracker

Tropical Cyclone Generated Swells Expected This Weekend

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Alerts

A Small Craft Advisory is in effect for the ʻAlenuihāhā channel, as well as waters to the west and south of the Big Island, through 6:00 a.m. Sunday. East winds are expected up to 25 knots with rough seas from about 9 to 12 feet. Inexperienced mariners should avoid navigating in these conditions.

**Click directly on the images below to make them larger. Charts include: Big Island projected winds, tides, swell direction & period and expected wave heights.**

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Screen Shot 2015-08-21 at 9.11.05 PMBig Island Surf Forecast

Hilo side: Wave heights are expected to be shoulder/head high today. The best breaks open to the swell could get overhead on the sets.

Kona side: Wave heights knee/waist/chest high are expected for the best breaks open to the swell. Ankle/waist high waves for spots that aren’t quite catching it.

South: Wave heights are expected to be waist/chest high today for the best exposures open to the south swell. Spots open to trade swell could get up to head high or more on the sets.

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Screen Shot 2015-08-21 at 9.11.11 PMOur current south swell is expected to hold through Saturday morning before beginning to fade.

A small west swell generated by Super-Typhoon Atsani is expected to move in on the weekend. This system could go extratropical next week and curve northwest. If so, we could get more swell out of this system.

Kilo is expected to strengthen over the next couple of days. If so, we could see some short-period wind swell building today and into Sunday for southeast exposures. Keeping a close eye on this system and will bring you the latest.

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.  

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**Click here for your detailed Big Island weather report.**

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

 

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