Hawaii County Surf Forecast for August 17, 2021
Forecast for Big Island Leeward
HIGH SURF ADVISORY FOR SOUTH FACING SHORES
| Shores | Today | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 5-7 | 5-7 | 5-7 | 5-7 |
| South Facing | 8-12 | 8-12 | 8-12 | 8-12 |
| Weather | Mostly cloudy until 12 AM, then partly cloudy. Scattered showers. |
|---|---|
| Low Temperature | Around 70. |
| Winds | East winds around 5 mph, becoming north after midnight. |
Swell Summary
The anticipated large, long period south swell has arrived and will produce High Surf Advisory (HSA) surf (peaking 10 foot or greater faces) along south facing shores through Wednesday. Offshore southern buoys are verifying this high south swell arrival, 6 to 7 foot swells within the 17-19 second spectral bands. The nearshore PacIOOS Barber's Point buoy is observing consistent 3 foot or greater swell heights within the high 18-22 second spectral bands. The HSA will be in effect through Wednesday afternoon as the enhanced southern swell energy drives this high south shore surf event through mid week.
The fairly low, moderate period northwest to west swell will be slowly declining through Tuesday. This will have north and west facing shore surf gradually falling through the day. Surf along east facing shores will remain small the next several days. Swell within the small captured fetch from Hurricane Linda in the East Pacific might reach the east facing shores of the eastern most islands late this week as small, moderate period east swell.
NORTH EAST
am 
pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Light sideshore texture in the morning with SSE winds 10-15mph. Sideshore texture/chop conditions for the afternoon with the winds shifting to the SE.
NORTH WEST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Fairly clean in the morning with ENE winds 5-10mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting WNW less than 5mph.
WEST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the morning with NNE winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting to the WNW.
SOUTH EAST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi glassy/semi bumpy with SSE winds less than 5mph in the morning increasing to 5-10mph in the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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