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Stormy Petrel

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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

California

Shell Beach

reeftide: mid

2.5Updated 0 min ago

Face

4.7ft

9s period

Swell

WNW

293°

Windcross-off

3 mph

ESE

Tide

2.2 ft

slack

ConditionsMixed

Mixed

40% wind sea

Swell breakdown

WAVEWATCH III

Wind sea

WNW

6.6ft

7s

not surfable

not surfable

P1 (primary)

WNW

4.5ft

9s

74%

P2 (secondary)

Swell components (ft) · next 48h

Spot info

Breakreef

Tide preferencemid

Crowdmoderate

Hazardsrocks, reef, rips, cold water, sharks

Optimal conditions

SwellNW 315°

WindENE offshore

Tidemid

Period10s+

Breakreef

Nearest buoy

BuoyNDBC 46218

Hs8.5 ft

Tp11s

7-day forecast

Time

Rating

Face

Period

Swell

Wind

Tide

Thu, May 14

2am

4.7

10s

WNW292°

1mphcross-off

1.0ft↓

5am

4.5

10s

WNW291°

4mphcross

0.2ft↑

8am

5.9

7s

WNW294°

4mphcross

2.7ft↑

11am

5.5

7s

WNW293°

6mphonshore

3.6ft↓

2pm

3.5

11s

WNW289°

7mphcross-on

1.8ft↑

5pm

1.8

13s

WSW245°

7mphcross

2.0ft↑

8pm

1.7

13s

WSW241°

6mphcross-off

5.1ft↑

11pm

2.8

12s

WSW244°

3mphcross-off

5.4ft

Fri, May 15

2am

8.1

9s

WNW295°

4mphoffshore

1.5ft↓

5am

8.0

9s

WNW295°

3mphcross

-0.7ft↑

8am

2.7

12s

WSW243°

1mphcross

1.6ft↑

11am

1.3

14s

SSW195°

5mphonshore

3.8ft↓

2pm

1.4

14s

SSW195°

6mphonshore

2.5ft↓

5pm

1.5

14s

SSW195°

10mphcross

2.0ft↑

8pm

1.7

16s

WNW297°

14mphcross

4.9ft↑

11pm

2.0

16s

WNW297°

10mphcross

6.2ft

← Back to map More spots in California

Report incorrect data

WSW

2.4ft

12s

21%

P3 (tertiary)

SSW

1.2ft

15s

5%

Wind speed (mph) · next 48h

Tide (ft) · next 48h

Dir

W

Water57°F

Reading5/14/2026, 4:56:00 AM

View NDBC station page →