Photo Credit: James Grenz

Forecast for Big Island Leeward

Swell Summary

While the fetch of trade winds to the E of the islands is somewhat limited, short- and medium-period wind waves/swells will be arriving from the NE and NNE over the day or two, due to the strong high, and the strong gradient between it and a slow-moving, gale-force low off the U.S. W coast. This will result in increased seas, with rough and choppy surf along shores exposed to the N and E. Surf along exposed E facing shores may become large enough to warrant a High Surf Advisory by tonight or Tuesday. Very little swell energy from the NW is expected this week, but a small pulse of swell will persist through today, with another pulse possible Thursday and Friday.

NORTH EAST

am        pm  

Surf: Knee to waist high NNE short period wind swell for the morning going more E during the day.

Conditions: Semi choppy with ESE winds 5-10mph in the morning shifting SE for the afternoon.

NORTH WEST

am        pm  

Surf: Minimal (ankle high or less) surf.

Conditions: Fairly clean in the morning with S winds 5-10mph. Glassy conditions for the afternoon as the winds lighten to less than 5mph.

WEST

am        pm  

Surf: Minimal (ankle high or less) surf.

Conditions: Semi glassy with SE winds 5-10mph in the morning shifting N less than 5mph in the afternoon.

SOUTH EAST

am        pm  

Surf: Knee to waist high E short period wind swell.

Conditions: Light sideshore texture with NNE winds 10-15mph.

Data Courtesy of NOAA.gov and SwellInfo.com