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Stormy Petrel

Free surf forecasts · No paywall, no ads.

Data sources

NWPS — nearshore wave model
WAVEWATCH III — spectral swell
HRRR — 3 km wind
NDBC — realtime buoys
CO-OPS — tide predictions

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Forecasts refresh every 6 h · buoys hourly

Hawaii

Keaau Beach

beachtide: mid

1.0Updated 0 min ago

Face

1.4ft

9s period

Swell

NW

324°

Windoffshore

10 mph

ENE

Tide

1.0 ft

slack

ConditionsBlown out

Blown out

65% wind sea

Swell breakdown

WAVEWATCH III

Wind sea

ENE

5.3ft

6s

not surfable

not surfable

P1 (primary)

NW

1.4ft

9s

43%

P2 (secondary)

N

1.2ft

8s

30%

P3 (tertiary)

NW

1.1ft

17s

27%

Swell components (ft) · next 48h

Wind speed (mph) · next 48h

Tide (ft) · next 48h

Spot info

Breakbeach

Tide preferencemid

Crowd—

Hazards—

Optimal conditions

SwellW 269°

WindE offshore

Tidemid

Period10s+

Breakbeach

Nearest buoy

No nearby buoy.

7-day forecast

Time

Rating

Face

Period

Swell

Wind

Tide

Thu, May 14

2am

1.8

17s

NW323°

6mphoffshore

1.0ft

5am

2.1

16s

NW323°

4mphcross

1.0ft↓

8am

2.3

16s

NW324°

2mphcross-off

0.7ft↓

11am

2.3

15s

NW324°

4mphoffshore

-0.2ft↑

2pm

2.6

15s

NW324°

9mphoffshore

0.1ft↑

5pm

2.8

14s

NW325°

11mphoffshore

1.5ft↑

8pm

2.8

14s

NW325°

8mphoffshore

1.9ft↓

11pm

2.9

14s

NW325°

8mphoffshore

0.9ft

Fri, May 15

2am

2.8

13s

NW325°

6mphoffshore

0.2ft↑

5am

2.5

13s

NW325°

6mphoffshore

0.6ft

8am

3.7

10s

NNE15°

3mphoffshore

0.7ft↓

11am

3.0

13s

NW324°

3mphoffshore

-0.2ft

2pm

2.7

10s

N8°

2mphcross

-0.1ft↑

5pm

2.6

12s

NW324°

2mphcross

1.3ft↑

8pm

2.0

12s

NW324°

10mphoffshore

2.2ft↓

11pm

2.2

10s

NNE14°

10mphoffshore

1.3ft

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