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Anasuria AWS wave buoy daily means for May 2013

Daily means from the Anasuria AWS wave buoy for May 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

740 wave-buoy observations covered all 31 days. Typical wave height was 4.9 ft (10th–90th percentile 2.3–8.5 ft), while mean reported wave period; measurement type unavailable was 5 seconds (10th–90th percentile 4–6 seconds). Typical wind was 14.5 mph (10th–90th percentile 6.9–24.2 mph) and mean water temperature was 7.9°C (10th–90th percentile 6.6–9°C). 1 of 3,590 checked values (0%) were excluded by quality control. Across 3 comparable years, mean wave height was above the same-month mean of 5 ft and mean wave period was below the same-month mean of 5.1 seconds.

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

Typical Wave Height

4.9ft
Mean: 5.4 ft
P10–P90: 2.3 — 8.5 ft
Recorded extremes

1.3 — 25.6 ft

Available for 739 of 740 hourly samples

Mean Wave Period

5secs
P10–P90: 4 — 6secs
Recorded extremes

3 — 10secs

Mean Water Temperature

7.9°C
P10–P90: 6.6 — 9°C
Recorded extremes

6.5 — 11.4°C

Available for 630 of 740 hourly samples

Typical Wind

Variable, 14.5mph
Mean: 15.3 mph
P10–P90: 6.9 — 24.2 mph
Recorded extremes

0 — 42.5 mph

Circular concentration: 9%

Compared With Previous Mays

Historical baseline from 2,093 observations across 3 years.

Wave Height
5.4ft
0.4ft above mean
Historical mean 5ft
Wave Period
5s
0.1s below mean
Historical mean 5.1s
Water Temperature
7.9°C
1.2°C below mean
Historical mean 9.1°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 May 2013Last observation shown
Metric
Mean wave height (ft)767853224664786556556716114234233
Mean observed period(s)5Reported6Reported6Reported5Reported4Reported4Reported4Reported4Reported4Reported6Reported5Reported4Reported5Reported6Reported5Reported5Reported5Reported5Reported6Reported5Reported5Reported5Reported7Reported7Reported6Reported6Reported4Reported4Reported4Reported4Reported4Reported
Mean wave power(kW/m)-------------------------------
Mean wind directionWSWconcentration 64%SSWconcentration 55%SSWconcentration 53%SWconcentration 90%SWconcentration 96%SSWconcentration 97%SSEconcentration 90%ESEconcentration 96%Sconcentration 86%SSWconcentration 34%SSWconcentration 95%WSWconcentration 69%WSWconcentration 90%SSWconcentration 95%SEconcentration 69%SSEconcentration 75%Nconcentration 88%ENEconcentration 94%NEconcentration 82%NNWconcentration 97%NWconcentration 98%NWconcentration 97%NNWconcentration 89%NNEconcentration 88%NWconcentration 85%Nconcentration 43%SSEconcentration 98%ESEconcentration 86%NNEconcentration 92%NNEconcentration 92%NNWconcentration 97%
Mean wind speed (mph)191017221713101314131614212317101719101520222918731414131113
Mean water temperature(°C)6.66.66.66.66.76.97.67.67.77.77.77.97.77.67.67.87.87.88.08.18.18.17.77.68.29.38.88.89.19.69.2

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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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