Hawaii County Surf Forecast for February 23, 2021
Photo Credit: James Grenz
Forecast for South Big Island and Big Island North and East
HIGH SURF ADVISORY FOR EAST FACING SHORES
| Shores | Today | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| East Facing | 7-10 | 7-10 | 7-10 | 7-10 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Mostly cloudy. Occasional showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | Around 80. | |||||
| Winds | Southeast winds 5 to 10 mph. | |||||
|
||||||
| Sunrise | 6:43 AM HST. | |||||
| Sunset | 6:23 PM HST. | |||||
| Weather | Mostly cloudy. Occasional showers. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the mid 60s. | |||||
| Winds | Southeast winds around 10 mph. | |||||
|
||||||
| Weather | Partly sunny. Scattered showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | Around 80. | |||||
| Winds | East winds 10 to 15 mph. | |||||
|
||||||
| Sunrise | 6:43 AM HST. | |||||
| Sunset | 6:24 PM HST. | |||||
Forecast for Big Island Leeward
| Shores | Today | Wednesday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 2-4 | 2-4 | 2-4 | 2-4 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Partly sunny. Scattered showers. |
|---|---|
| High Temperature | In the lower 80s. |
| Winds | East winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:47 AM HST. |
| Sunset | 6:27 PM HST. |
| Weather | Partly sunny. Scattered showers. |
|---|---|
| High Temperature | In the lower 80s. |
| Winds | East winds around 5 mph, becoming west in the afternoon. |
| Sunrise | 6:47 AM HST. |
| Sunset | 6:28 PM HST. |
Swell Summary
Recent ASCAT satellite passes confirm a large region of strong trades upstream of the state generating a long fetch that will be the impetus to the arrival of higher easterly swells. Strong trade winds will also build large wind-driven easterly seas. The combination of both heightened trade wind waves and east swells will translate to rough sea conditions and higher east-facing shoreline surf. Surf heights along eastern-facing shores will exceed surf advisory levels this week. A High Surf Advisory (HSA) will remain in effect for most island's eastern exposures for the remainder of the week.
A couple of small, overlapping relatively longer period west to northwest swells will travel around the islands the next few days. The first of these swells has arrived and will level out through the day. The second set of similar low west to northwest swells will move through during mid to late week. Surf along north and west-facing shores will remain well below HSA levels through Friday. Surf along south-facing shores will remain small into the weekend. A small bump in southern swell arriving later in the week will provide a slight increase to south-facing shoreline surf by Friday.
NORTH EAST
am 
pm 
Surf: Waist to stomach high ENE short period wind swell in the morning builds to stomach to shoulder high for the afternoon.
Conditions: Sideshore texture/chop with SSE winds 15-20mph in the morning shifting SE for the afternoon.
NORTH WEST
am 
pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Clean in the early morning with ESE winds less than 5mph. Sideshore texture/chop conditions move in during the morning hours with the winds shifting SW 5-10mph.
WEST
am pm 
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the morning with ESE winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting to the WNW.
SOUTH EAST
am 
pm
Surf: Knee to waist high E short period wind swell in the morning builds to waist to chest high for the afternoon.
Conditions: Clean in the morning with NNW winds 5-10mph. Sideshore texture/chop conditions for the afternoon with the winds shifting to the NE.
Data Courtesy of NOAA.gov and SwellInfo.com
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