Hawaii County Surf Forecast for August 21, 2021
Forecast for Big Island Leeward
Shores | Today | Sunday | ||
---|---|---|---|---|
Surf | Surf | |||
AM | PM | AM | PM | |
West Facing | 1-3 | 1-3 | 1-3 | 1-3 |
South Facing | 2-4 | 2-4 | 2-4 | 2-4 |
Weather | Mostly cloudy until 12 AM, then partly cloudy. Isolated showers. |
---|---|
Low Temperature | Around 70. |
Winds | Southeast winds around 5 mph in the evening, becoming light and variable. |
Weather | Mostly sunny until 12 PM, then mostly cloudy. Scattered showers and a slight chance of thunderstorms. |
---|---|
High Temperature | In the mid 80s. |
Winds | Northwest winds around 5 mph. |
Sunrise | 6:07 AM HST. |
Sunset | 6:47 PM HST. |
Swell Summary
The medium period easterly swell from former Tropical Cyclone Linda will keep moderate surf along east facing shores today. Surf along east facing shores will start to build today from locally generated wind waves as the remnant low moves near the islands. Surf heights may approach advisory levels for the eastern half of the island chain tonight into Sunday, before reaching the western islands Sunday night into Monday. How large the waves become is highly dependent on the eventual track and strength of the low over the coming days.
The current south swell will continue to slowly decline over the next couple of days. A series of small, moderate-period south swells will prevent surf from going flat into early next week.
NORTH EAST
am pm
Surf: Knee high NE short period wind swell in the morning builds in the afternoon with occasional sets up to waist high.
Conditions: Glassy in the morning with W winds less than 5mph. Semi choppy conditions for the afternoon with the winds shifting NNW 5-10mph.
NORTH WEST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the morning with ESE winds less than 5mph. Light sideshore texture conditions for the afternoon with the winds shifting SW 5-10mph.
WEST
am pm
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the morning with E winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting SW 5-10mph.
SOUTH EAST
am pm
Surf: Small scale (ankle to knee high) surf.
Conditions: Semi clean/textured in the morning with N winds 10-15mph. Clean conditions for the afternoon with the winds shifting NNW 15-20mph.
Data Courtesy of NOAA.gov and SwellInfo.com