Hawaii County Surf Forecast for March 09, 2023
Forecast for Big Island Windward and Southeast
| Shores | Today | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| North Facing | 5-7 | 5-7 | 5-7 | 5-7 |
| East Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
| Weather | Sunny until 12 PM, then partly sunny. Isolated showers. |
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|---|---|---|---|---|---|---|
| High Temperature | Around 80. | |||||
| Winds | North winds 5 to 10 mph. | |||||
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| Sunrise | 6:33 AM HST. | |||||
| Sunset | 6:28 PM HST. | |||||
| Weather | Partly cloudy. | |||||
|---|---|---|---|---|---|---|
| Low Temperature | In the mid 60s. | |||||
| Winds | Northeast winds around 10 mph, becoming northwest after midnight. |
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| Weather | Mostly sunny. Isolated showers. | |||||
|---|---|---|---|---|---|---|
| High Temperature | In the upper 70s. | |||||
| Winds | West winds around 5 mph, becoming northeast in the afternoon. |
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| Sunrise | 6:32 AM HST. | |||||
| Sunset | 6:29 PM HST. | |||||
Forecast for Big Island Leeward
HIGH SURF WARNING FOR WEST FACING SHORES
| Shores | Today | Friday | ||
|---|---|---|---|---|
| Surf | Surf | |||
| AM | PM | AM | PM | |
| West Facing | 12-16 | 10-14 | 7-10 | 7-10 |
| South Facing | 3-5 | 3-5 | 3-5 | 3-5 |
Swell Summary
A very large northwest swell (310-320) peaked at the upstream buoys (51001 and 51101) yesterday evening and is on the down trend. Based on the typical travel times from those buoys, the swell should be peaking early this morning locally. Due to the proximity of the source low around 600 NM north of Molokai, there are quite a mix of periods, ranging from around 10 to 18 seconds, making for very rough and messy conditions. This swell will continue to generate warning-level surf along north and west facing shores of most of the smaller islands, as well as leeward Big Island shores. Due to the lingering swell, the High Surf Warning has been extended through tonight. The combination of the northwest swell and westerly wind waves will lead to overwash of some coastal infrastructure and beach erosion today, as well. This swell will gradually subside late tonight into Friday as the parent low moves away to the northeast. A moderate, medium-period NNW (330-340) swell will move through beginning late Friday, keeping surf elevated, but below advisory level into the weekend. No other significant swells expected.
NORTH EAST
am 
pm 
Surf: Waist to stomach high NW medium period swell for the morning with occasional chest sets. This builds to chest to head high for the afternoon.
Conditions: Clean in the morning with SW winds 5-10mph. Light sideshore texture conditions for the afternoon with the winds shifting to the WNW.
NORTH WEST
am 
pm 
Surf: Waist to chest high W wind swell.
Conditions: Light sideshore texture in the morning with SSW winds 5-10mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting to the W.
WEST
am pm
Surf: Waist to chest high WNW wind swell.
Conditions: Glassy in the morning with NNE winds 5-10mph. Sideshore texture/chop conditions for the afternoon with the winds shifting to the NNW.
SOUTH EAST
am 
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Semi choppy with ENE winds 5-10mph in the morning increasing to 10-15mph in the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com
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