Forecast for Big Island Leeward

Swell Summary

A diminishing north northeast swell will maintain small surf along north and northeast facing shores through Saturday. An area of strong to near gale force winds along the southern periphery of a broad low near the west Aleutians will be focused along a northwest great circle path directed at the islands. This small, short to medium period northwest swell is scheduled to arrive and boost north and west surf late Saturday night into Sunday morning, hold this surf through Monday with a decline on Tuesday. A subtle increase in east facing shore surf will hold through early next week in response to trade wind wave swell propagating from fresh easterlies over and upstream of the islands. The arrival of a series of small, long period background south swells will provide a minor boost to south shore surf. A slightly higher, long period south southwest swell arriving Tuesday may hold southern coast surf to near seasonal levels through the middle of next week.

NORTH EAST

am        pm  

Surf: Waist to stomach high E short period wind swell.

Conditions: Choppy/sideshore current with SE winds 15-20mph in the morning increasing to 20-25mph in the afternoon.

NORTH WEST

am        pm  

Surf: Minimal (ankle high or less) surf.

Conditions: Light sideshore texture in the morning with NE winds 5-10mph. Sideshore texture/chop conditions for the afternoon with the winds shifting SW 10-15mph.

WEST

am        pm  

Surf: Minimal (ankle high or less) surf.

Conditions: Semi glassy in the morning with NNW winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting to the SW. Glassy conditions are expected by late afternoon with W winds less than 5mph.

SOUTH EAST

am        pm  

Surf: Knee to waist high E short period wind swell with occasional stomach high sets.

Conditions: Bumpy/semi bumpy with E winds 5-10mph in the morning increasing to 10-15mph in the afternoon.

Data Courtesy of NOAA.gov and SwellInfo.com