Outlook through Sunday May 13: A new short period north northwest swell will arrive tonight, peak on Monday, then lower gradually Monday night. A slightly larger and longer period north swell is expected to arrive late Monday, peak Monday night and early Tuesday, then lower gradually Tuesday night and Wednesday. Another smaller long period north northwest swell, is expected to arrive late Wednesday and Wednesday night. This swell will lower gradually Thursday through Saturday. There will be a series of small, mainly background southerly swells through most of this week. Strengthening trade winds early this week will cause an increase in short period choppy surf along east facing shores.
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
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Surf: Waist high ESE short period wind swell for the morning with occasional stomach sets. This rotates more N and builds to chest to head high in the afternoon.
Conditions: Light sideshore texture in the morning with SSE winds 10-15mph. Semi choppy conditions for the afternoon with the winds shifting ESE 5-10mph.
North West
ampm
Surf: Ankle to knee high SW long period swell for the morning going more N and building into the knee to thigh range in the afternoon.
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Conditions: Semi glassy in the morning with SW winds less than 5mph. Sideshore texture/chop conditions for the afternoon as the winds increase to 10-15mph.
West
ampm
Surf: Knee high SW long period swell with occasional waist high sets.
Conditions: Semi glassy/semi bumpy in the morning with S winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting SW 5-10mph.
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South East
ampm
Surf: Waist high ESE short period wind swell with occasional stomach high sets.
Conditions: Light sideshore texture in the morning with NE winds 5-10mph. Sideshore texture/chop conditions for the afternoon as the winds increase to 10-15mph.
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.**
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