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Beryl A AWS wave buoy daily means for May 2014

Daily means from the Beryl A AWS wave buoy for May 2014, 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

742 wave-buoy observations covered all 31 days. Typical wave height was 4.6 ft (10th–90th percentile 2.6–7.2 ft), while mean reported wave period; measurement type unavailable was 5.5 seconds (10th–90th percentile 4–7 seconds). Typical wind was 13.9 mph (10th–90th percentile 5.8–23 mph). All 2,968 checked values passed quality control.

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

Typical Wave Height

4.6ft
Mean: 4.8 ft
P10–P90: 2.6 — 7.2 ft
Recorded extremes

1.6 — 11.5 ft

Mean Wave Period

5.5secs
P10–P90: 4 — 7secs
Recorded extremes

3 — 8secs

Mean Water Temperature

-°C
P10–P90: - — -°C

Available for 0 of 742 hourly samples

Typical Wind

Variable, 13.9mph
Mean: 14.1 mph
P10–P90: 5.8 — 23 mph
Recorded extremes

0 — 32.2 mph

Circular concentration: 13%

Chart showing grouped wave observations for Beryl A 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 Beryl A AWS wave buoy

Beryl A AWS (WMO 63110) 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, with available parameters determined by the platform's installed sensors.

Metrics are rows; days run left to right.
Beryl A AWS wave buoy daily means May 2014Last observation shown
Metric
Mean wave height (ft)75434QC rejected4443467645564348866553223
Mean observed period(s)6Reported6Reported5Reported5Reported5Reported6Reported6Reported6Reported5Reported4Reported5Reported6Reported6Reported6Reported5Reported6Reported6Reported5Reported6Reported5Reported5Reported7Reported7Reported7Reported6Reported7Reported7Reported6Reported6Reported4Reported5Reported
Mean wave power(kW/m)-------------------------------
Mean wind directionNNEconcentration 97%Nconcentration 99%WNWconcentration 93%SSEconcentration 79%Sconcentration 96%SSEconcentration 88%Sconcentration 74%SEconcentration 98%SEconcentration 96%ESEconcentration 95%NEconcentration 89%Nconcentration 98%Nconcentration 99%NNWconcentration 59%SWconcentration 89%SWconcentration 83%SSWconcentration 78%Sconcentration 99%SSEconcentration 98%SSEconcentration 92%Sconcentration 86%NNEconcentration 61%Sconcentration 97%Variableconcentration 25%NNEconcentration 98%Econcentration 84%NEconcentration 98%Nconcentration 40%Nconcentration 33%NNWconcentration 98%Nconcentration 98%
Mean wind speed (mph)16139121723121214161319201321191623161219191751278741112
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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