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Cormorant AWS wave buoy daily means for Dec 2013

Daily means from the Cormorant AWS wave buoy for Dec 2013, including available wave height, period, direction, wind and sea temperature data.

Last observation shown

Data available:  to 

Monthly means for

Latest

Period Summary

Programmatically generated summary. Hog Says

741 wave-buoy observations covered all 31 days. Typical wave height was 15.1 ft (10th–90th percentile 9.2–23.3 ft), while mean reported wave period; measurement type unavailable was 8 seconds (10th–90th percentile 7–10 seconds). Typical wind was 26.4 mph (10th–90th percentile 13.9–42.5 mph). All 2,964 checked values passed quality control.

Generated only from the observations and comparisons shown on this page.

Typical Wave Height

15.1ft
Mean: 15.7 ft
P10–P90: 9.2 — 23.3 ft
Recorded extremes

6.6 — 38.7 ft

Mean Wave Period

8secs
P10–P90: 7 — 10secs
Recorded extremes

5 — 13secs

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 741 hourly samples

Typical Wind

SW, 26.4mph
Mean: 27.1 mph
P10–P90: 13.9 — 42.5 mph
Recorded extremes

3.4 — 61.1 mph

Circular concentration: 56%

Chart showing grouped wave observations for Cormorant AWS. Use the table on this page for a text version of the same measurements. To open hourly observations, use a linked day name in the table.

About Cormorant AWS wave buoy

Cormorant AWS (WMO 63112) is an automatic weather station on a privately operated oil platform in the northern North Sea. It is not a free-floating wave buoy. The station provides offshore meteorological observations for operations and forecasting; the parameters available through the international feed depend on the platform's installed sensors.

Metrics are rows; days run left to right.
Cormorant AWS wave buoy daily means Dec 2013Last observation shown
Metric
Mean wave height (ft)171110142227171171191110142119162023161718162126151915101113
Mean observed period(s)9Reported7Reported7Reported8Reported9Reported11Reported10Reported7Reported6Reported7Reported7Reported7Reported7Reported8Reported9Reported9Reported8Reported8Reported9Reported8Reported8Reported9Reported8Reported8Reported9Reported8Reported8Reported9Reported7Reported7Reported9Reported
Mean wave power(kW/m)-------------------------------
Mean wind directionNWconcentration 85%WSWconcentration 99%WNWconcentration 88%Wconcentration 97%NNWconcentration 82%NNWconcentration 97%Wconcentration 33%Wconcentration 91%WSWconcentration 93%SSWconcentration 98%SWconcentration 98%Variableconcentration 26%SEconcentration 75%SSWconcentration 89%SWconcentration 89%WSWconcentration 92%SWconcentration 94%Sconcentration 99%SSWconcentration 89%SWconcentration 91%SWconcentration 97%WSWconcentration 95%SSWconcentration 61%Sconcentration 95%SSWconcentration 94%SWconcentration 95%SSEconcentration 95%WNWconcentration 35%WNWconcentration 81%Sconcentration 32%Variableconcentration 21%
Mean wind speed (mph)23262030393616192223252523293529303935233023273840303216161820
Mean water temperature(°C)-------------------------------

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Wave metric colour key

Colours move through the scale as each number increases. They do not by themselves mean that conditions are good, safe or suitable for you.

Wave & swell height0–40+ ft
Wave & swell period0–22+ s
Wind speed0–75 mph

The displayed numbers remain the source of truth; colour is an additional visual cue.

Which wave period is shown?

The table shows the best period measurement supplied for each observation. It is not necessarily the energy period used to calculate wave power.

Tp
Peak period: the period at the strongest spectral peak.
Tavg
The provider's average wave period.
Tm02
A mean period calculated from the wave spectrum.
Tz
Mean zero-crossing period.
Reported
A legacy value whose period type was not recorded.
Mixed
A daily or monthly mean containing more than one period type.

Wave power needs a genuine energy period (Te). SurfHog does not substitute Tp, Tavg, Tm02 or Tz when Te is missing.

What does buoy wave power mean?

kW/m means kilowatts of wave power per metre of wave crest. It describes the rate at which the observed sea state carries energy past the buoy.

Unlike the shore-directed forecast value, buoy wave power is the total power at the observation point. It is not projected towards a particular beach and does not predict breaking wave height.

In deep water, wave power can be calculated with:

P is approximately 0.49 times significant wave height squared times wave energy period.

P is power in kW/m, Hs is significant wave height in metres, and Te is wave energy period in seconds.

  • Provider-reported power is used when available.
  • Otherwise, a value is calculated only when both significant height and a genuine energy period are available. The ≈ symbol marks calculated values.
  • A dash is shown instead of substituting peak, Tm02, zero-crossing or other period measurements.
  • Daily and monthly figures use the mean of hourly-normalized observation power values; they are not calculated from mean height and period.

Wave direction, spectrum, water depth and local bathymetry still matter. Wave power is best read alongside height, period and direction rather than as a standalone surf-quality score.

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