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Anasuria AWS wave buoy daily means for Apr 2014

Daily means from the Anasuria AWS wave buoy for Apr 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

702 wave-buoy observations covered all 30 days. Typical wave height was 4.6 ft (10th–90th percentile 2.6–9.2 ft), while mean reported wave period; measurement type unavailable was 5.1 seconds (10th–90th percentile 4–6 seconds). Typical wind was 15 mph (10th–90th percentile 5.8–23 mph) and mean water temperature was 7.9°C (10th–90th percentile 7.4–8.4°C). All 3,435 checked values passed quality control. Across 4 comparable years, mean wave height was below the same-month mean of 5.4 ft and mean wave period was below the same-month mean of 5.3 seconds.

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

Typical Wave Height

4.6ft
Mean: 5.3 ft
P10–P90: 2.6 — 9.2 ft
Recorded extremes

1.3 — 13.1 ft

Mean Wave Period

5.1secs
P10–P90: 4 — 6secs
Recorded extremes

4 — 8secs

Mean Water Temperature

7.9°C
P10–P90: 7.4 — 8.4°C
Recorded extremes

7.3 — 9.4°C

Available for 627 of 702 hourly samples

Typical Wind

Variable, 15mph
Mean: 14.4 mph
P10–P90: 5.8 — 23 mph
Recorded extremes

0 — 32.2 mph

Circular concentration: 26%

Compared With Previous Aprils

Historical baseline from 2,707 observations across 4 years.

Wave Height
5.3ft
0.1ft below mean
Historical mean 5.4ft
Wave Period
5.1s
0.2s below mean
Historical mean 5.3s
Water Temperature
7.9°C
1.2°C above mean
Historical mean 6.7°C

Chart showing grouped wave observations for Anasuria 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 Anasuria AWS wave buoy

Anasuria AWS (WMO 62164) is an automatic weather station on privately operated offshore infrastructure in the central North Sea. It is not a free-floating wave buoy. The station contributes meteorological and, when fitted, sea-state observations from an area with extensive offshore energy activity.

Metrics are rows; days run left to right.
Anasuria AWS wave buoy daily means Apr 2014Last observation shown
Metric
Mean wave height (ft)444QC rejected6445543710108698334556564227
Mean observed period(s)5Reported5Reported4Reported5Reported6Reported4Reported5Reported5Reported5Reported4Reported4Reported5Reported6Reported6Reported7Reported5Reported6Reported7Reported6Reported4Reported4Reported5Reported5Reported5Reported5Reported5Reported5Reported4Reported5Reported6Reported
Mean wave power(kW/m)------------------------------
Mean wind directionEconcentration 98%ESEconcentration 96%ESEconcentration 97%ESEconcentration 98%SSWconcentration 90%Sconcentration 96%SSWconcentration 53%Wconcentration 94%WSWconcentration 98%SWconcentration 91%WSWconcentration 71%SWconcentration 92%Wconcentration 94%NNWconcentration 96%Variableconcentration 21%SSWconcentration 98%Wconcentration 75%Nconcentration 80%SSEconcentration 97%Econcentration 89%ENEconcentration 98%ENEconcentration 93%SEconcentration 97%SEconcentration 98%Econcentration 98%ESEconcentration 95%Econcentration 93%Econcentration 91%Variableconcentration 28%NEconcentration 99%
Mean wind speed (mph)12814191418121514101323262192125137101517151713161111312
Mean water temperature(°C)7.47.47.47.47.47.57.67.67.77.77.87.87.67.67.87.77.67.77.98.08.08.18.18.28.28.28.38.79.28.8

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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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