Sentry Shoal
Canada
Last wave reading:
Last reading
This reading is more than 3 hours old. The buoy may have stopped sending waves for now.
Significant wave height at the buoy
0.0 ft
0.0 m
- Dominant period
- 2 s
- Direction
- no direction
This station does not send a swell and wind-wave split, so the numbers are for the whole sea.
Close to flat at the buoy: 0.0 ft of total wave height.
Significant wave height is the average of the biggest third of waves at the buoy. It is not surf height at a beach.
Trend at the buoy
Height at the buoy
- Total (significant height)
Period
- Dominant period
Hourly means of the buoy's readings. Arrows point the way the waves travel.
Model vs the buoy
- Buoy, hourly
- Model, past days
- Model forecast
Over the last day, the model tracked the buoy within 10%.
| Day | Height | Peak period | From |
|---|---|---|---|
| Fri, Nov 13 | 3.9 ft | 4.5 s | ESE |
| Sat, Nov 14 | 7.1 ft | 6 s | SE |
| Sun, Nov 15 | 7.3 ft | 6.1 s | SE |
| Mon, Nov 16 | 2.4 ft | 3.9 s | SSE |
| Tue, Nov 17 | 4.7 ft | 5.1 s | SE |
| Wed, Nov 18 | 4.1 ft | 5.2 s | SE |
| Thu, Nov 19 | 0.4 ft | 1.8 s | NNW |
ECMWF WAM wave model via Open-Meteo, nearest model cell (50.000°N, 125.000°W). Both lines are significant wave height at sea, the same measure the buoy reports. Model output, not a Quiver beach forecast.
Beaches whose Quiver forecast uses this buoy
- Long Beach (Pacific Rim)109 km
Quiver forecast now: 9-10ft
Beach numbers are each beach's own Quiver forecast, not a conversion of this buoy reading.
Nearby buoys
- Halibut Bank0.7 ft · 3 sStale · 110 km
- Entrance to English Bay0.3 ft · 3 sStale · 135 km
- La Perouse Bank10.5 ft · 9 sStale · 140 km
- Neah Bay - 6 NM North of Cape Flattery, WA (Traffic Separation Lighted Buoy)11.8 ftLive · 159 km
- South Brooks12.1 ft · 11 sStale · 209 km
- Angeles Point, WA1.0 ft · 10 sLive · 218 km
Other readings
- Water temperature
- 50°F (9.9°C)
- Wind
- 10 kt from the SE, gusts 12 kt
- Air temperature
- 48°F (8.7°C)
- Pressure
- 998.6 hPa
Reported Nov 12, 6:00 PM PDT.
How to read this buoy
Sentry Shoal sits in open water, 109 km from the closest beach listed here. It sees swell before the coast bends, blocks or shrinks it, so expect beach surf to differ from this reading.
Biggest hourly reading in that record: 7.9 ft at 6 s on Nov 11.
- Station id
- 46131
- Operator
- Environment and Climate Change Canada
- Program
- International Partners
- Position
- 49.910°N, 124.980°W
- Type
- Moored buoy
- Local time zone
- America/Vancouver
- Swell split
- No, whole-sea numbers only
Source: NOAA National Data Buoy Center (NDBC); station operated by Environment and Climate Change Canada. Licence: Public domain (US government work). Station page at the source.
Not for navigation. Readings can be late, missing or wrong; check official marine forecasts before going to sea.
Buoy terms
- Significant height
- The average of the biggest third of waves the buoy measured. Sets in the surf zone can be bigger or smaller.
- Dominant period
- Seconds between the waves carrying the most energy. Longer period means more power and more bend around points.
- Swell vs wind waves
- Swell was made by distant wind; wind waves were made nearby. The buoy splits its spectrum at a cutoff period to report each.
- Direction
- Where waves come from, in degrees true. 270° is from the west.
