South Georgian Bay
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
3.6 ft
1.1 m
- Dominant period
- 4 s
- Direction
- no direction
This station does not send a swell and wind-wave split, so the numbers are for the whole sea.
Short-period wind chop: 3.6 ft at 4 s.
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 ran 12% high against the buoy.
| Day | Height | Peak period | From |
|---|---|---|---|
| Fri, Nov 13 | 4.1 ft | 4.9 s | N |
| Sat, Nov 14 | 5.7 ft | 5.6 s | NNW |
| Sun, Nov 15 | 5.1 ft | 5.5 s | N |
| Mon, Nov 16 | 2.5 ft | 3.7 s | W |
| Tue, Nov 17 | 3.0 ft | 4 s | WSW |
| Wed, Nov 18 | 2.2 ft | 3.4 s | WSW |
| Thu, Nov 19 | 1.8 ft | 3.3 s | SW |
ECMWF WAM wave model via Open-Meteo, nearest model cell (45.000°N, 80.750°W). Both lines are significant wave height at sea, the same measure the buoy reports. Model output, not a Quiver beach forecast.
Nearby buoys
- Georgian Bay2.6 ft · 4 sStale · 73 km
- North Huron Spotter3.9 ftLive · 179 km
- NW Lake Ontario Ajax0.3 ft · 5 sStale · 185 km
- Southern Lake Huron5.2 ft · 6 sStale · 194 km
- North Channel East2.0 ft · 3 sLive · 200 km
- West Lake Ontario - Grimsby3.6 ft · 4 sStale · 207 km
Other readings
- Water temperature
- 52°F (11.2°C)
- Wind
- 17 kt from the NNE, gusts 21 kt
- Air temperature
- 39°F (4.1°C)
- Pressure
- 1011.2 hPa
Reported Nov 12, 8:00 PM EST.
How to read this buoy
Biggest hourly reading in that record: 3.6 ft at 4 s on Nov 12.
- Station id
- 45143
- Operator
- Environment and Climate Change Canada
- Program
- International Partners
- Position
- 44.940°N, 80.627°W
- Type
- Moored buoy
- Local time zone
- America/Toronto
- 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.
