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Cormorant AWS wave buoy daily means for Nov 2017

Daily means from the Cormorant AWS wave buoy for Nov 2017, 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

707 wave-buoy observations covered all 30 days. Typical wave height was 12.8 ft (10th–90th percentile 7.9–19.7 ft), while mean reported wave period; measurement type unavailable was 7.7 seconds (10th–90th percentile 6–9 seconds). Typical wind was 25.3 mph (10th–90th percentile 10.3–36.9 mph). All 2,828 checked values passed quality control. Across 4 comparable years, mean wave height was above the same-month mean of 10.5 ft and mean wave period was above the same-month mean of 7.1 seconds.

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

Typical Wave Height

12.8ft
Mean: 13.1 ft
P10–P90: 7.9 — 19.7 ft
Recorded extremes

4.9 — 25.9 ft

Mean Wave Period

7.7secs
P10–P90: 6 — 9secs
Recorded extremes

5 — 11secs

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 707 hourly samples

Typical Wind

WNW, 25.3mph
Mean: 24.6 mph
P10–P90: 10.3 — 36.9 mph
Recorded extremes

2.2 — 45 mph

Circular concentration: 51%

Compared With Previous Novembers

Historical baseline from 2,301 observations across 4 years.

Wave Height
13.1ft
2.6ft above mean
Historical mean 10.5ft
Wave Period
7.7s
0.6s above mean
Historical mean 7.1s
Water Temperature
–
Not enough comparable data

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 Nov 2017Last observation shown
Metric
Mean wave height (ft)8131081011161418172015131013162220137713101717157131012
Mean observed period(s)6Reported8Reported7Reported7Reported8Reported7Reported9Reported8Reported8Reported9Reported9Reported8Reported8Reported7Reported8Reported8Reported9Reported9Reported7Reported7Reported7Reported7Reported8Reported8Reported9Reported8Reported7Reported7Reported6Reported7Reported
Mean wave power(kW/m)------------------------------
Mean wind directionWconcentration 74%NWconcentration 66%SWconcentration 98%WSWconcentration 97%NNWconcentration 93%SSWconcentration 43%SWconcentration 80%SWconcentration 95%Wconcentration 96%NWconcentration 97%NWconcentration 93%Nconcentration 100%Wconcentration 31%Wconcentration 93%Wconcentration 81%WSWconcentration 78%Wconcentration 99%NWconcentration 93%NNWconcentration 98%Nconcentration 82%ESEconcentration 91%NEconcentration 83%NWconcentration 88%Wconcentration 99%WNWconcentration 94%NNWconcentration 91%Variableconcentration 25%NNEconcentration 99%Nconcentration 99%NNEconcentration 98%
Mean wind speed (mph)271822151719212931293029172322363538281114311730292711312426
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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