May 18, 2018 Surf Forecast
Photo: James Grenz
Swell Summary
Outlook through Thursday May 24: The arrival of a moderate NW swell will bump up the surf along the north and west shores on Friday. A smaller north swell follows in over the weekend, then a slightly larger NW swell comes in on Tuesday night and Wednesday of next week. A series of new long- period south swells will be reaching our southern shoreline later tonight and Friday, which may produce a modest rise in surf over the weekend. Another long- period SW swell is slated to arrive Wednesday of next week. Surf along east facing shores will rise up to the moderate range in the next day or two as the stronger trades become better established Surf heights are forecast heights of the face, or front, of waves. The surf forecast is based on the significant wave height, the average height of the one third largest waves, at the locations of the largest breakers. Some waves may be more than twice as high as the significant wave height. Expect to encounter rip currents in or near any surf zone.
North East
am 
pm
Surf: Waist high ground swell with occasional chest sets. The swell will be coming from the ESE in the morning and shift to the NNW during the day.
Conditions: Sideshore texture/chop with SE winds 10-15mph.
North West
am 
pm 
Surf: Ankle to knee high SSW long period swell.
Conditions: Clean in the early morning with SSE winds less than 5mph. Sideshore texture/chop conditions move in during the morning hours with the winds shifting SW 10-15mph.
West
am pm
Surf: Knee to waist high SSW long period swell for the morning with occasional stomach high sets. This builds in the afternoon with sets up to chest high.
Conditions: Choppy/disorganized with S winds 10-15mph in the morning shifting NW for the afternoon.
South East
am pm
Surf: Waist to chest high ESE short period wind swell.
Conditions: Sideshore texture/chop with NE winds 5-10mph in the morning increasing to 10-15mph in the afternoon.
Image: NOAA
Image: NOAA
Image: NOAA
Image: NOAA
Image: NOAA
**Click directly on the images below to make them larger. Charts include: Hawaii County projected winds, tides, swell direction & period and expected wave heights.**
Data Courtesy of NOAA.gov and SwellInfo.com
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