Hawaii County Surf Forecast for February 21, 2021
Forecast for South Big Island and Big Island North and East
Shores | Today | Monday | ||
---|---|---|---|---|
Surf | Surf | |||
AM | PM | AM | PM | |
North Facing | 2-4 | 2-4 | 2-4 | 2-4 |
East Facing | 4-6 | 5-7 | 6-8 | 6-8 |
South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
Weather | Partly sunny. Occasional showers. | ||||||
---|---|---|---|---|---|---|---|
High Temperature | Around 80. | ||||||
Winds | Southeast winds 5 to 10 mph. | ||||||
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Sunrise | 6:45 AM HST. | ||||||
Sunset | 6:23 PM HST. |
Weather | Mostly cloudy. Showers likely. | ||||
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Low Temperature | In the mid 60s. | ||||
Winds | East winds 5 to 10 mph. | ||||
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Weather | Partly sunny. Scattered showers. | ||||||
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High Temperature | In the lower 80s. | ||||||
Winds | East winds around 10 mph. | ||||||
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Sunrise | 6:44 AM HST. | ||||||
Sunset | 6:23 PM HST. |
Forecast for Big Island Leeward
Shores | Today | Monday | ||
---|---|---|---|---|
Surf | Surf | |||
AM | PM | AM | PM | |
West Facing | 1-3 | 2-4 | 2-4 | 2-4 |
South Facing | 1-3 | 1-3 | 1-3 | 1-3 |
Weather | Mostly sunny until 12 PM, then mostly cloudy. Hazy. Showers likely and a slight chance of thunderstorms. |
---|---|
High Temperature | In the lower 80s. |
Winds | Northeast winds around 5 mph, becoming west in the afternoon. |
Sunrise | 6:49 AM HST. |
Sunset | 6:27 PM HST. |
Weather | Sunny until 12 PM, then mostly cloudy. Hazy. Scattered showers. |
---|---|
High Temperature | In the lower 80s. |
Winds | Northwest winds around 5 mph. |
Sunrise | 6:48 AM HST. |
Sunset | 6:27 PM HST. |
Swell Summary
In response to strengthened trades over and upstream of the islands, east-facing shoreline surf will be on the rise the next couple of days. Recent satellite ASCAT wind observations verify a large region of strong trades upstream of the state that will generate a long fetch region. High Surf Advisory (HSA) level surf along eastern exposures is expected to develop Monday into Tuesday. These larger wind driven seas will impact eastern-facing shores through next week.
A couple of small, overlapping longer period west northwest swells will travel around the islands in the coming days. The first of these swells is arriving today and be leveling out from tonight through Tuesday afternoon. The second set of similar low west to northwest swells will be moving through during mid to late week. Surf along north and west-facing shores will remain far below HSA levels through Friday. Energy from far Southern Hemispheric gales may clip the islands and provide a subtle bump to south-facing shoreline surf today although much of this energy will pass east of the chain.
NORTH EAST
am
pm
Surf: Knee to waist high E short period wind swell for the morning with occasional stomach sets. This builds to stomach to shoulder high for the afternoon.
Conditions: Sideshore texture/chop with SE winds 10-15mph in the morning increasing to 15-20mph in the afternoon.
NORTH WEST
am
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the early morning with WSW winds less than 5mph. Bumpy/semi bumpy conditions move in during the morning hours with the winds shifting WNW 5-10mph.
WEST
am
pm
Surf: Minimal (ankle high or less) surf.
Conditions: Glassy in the early morning with NNE winds less than 5mph. Semi choppy conditions move in during the morning hours with the winds shifting NW 5-10mph.
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: Sideshore texture/chop with NE winds 5-10mph in the morning shifting E 10-15mph in the afternoon.
Data Courtesy of NOAA.gov and SwellInfo.com