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Buoy 46012 Half Moon Bay
Longitude = 122.70W Latitude = 37.45N
FAQs

 

Frequency Analysis - Current Hour
(Swell height in each period/frequency band)
Measurement Date/Time (GMT)04/26
18:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
18:00:00 (GMT) on 04/26
Sea Height:4.1 ft
Primary Swell Height: 2.7 ft
Primary Swell Period: 12.4 secs
Surf Height2.7 ft

 

24 Hour Observation

Date
(Month/Day)
Time
(GMT)
Sea Height
[>5 secs]
(ft)
Primary Swell Secondary Swell Tertiary Swell Estimated Surf Height (ft)Primary Period (secs)
Height
(ft)
Period
(secs)
Height
(ft)
Period
(secs)
Height
(ft)
Period
(secs)
04/2618:00:004.1 2.7 se12.4 secs1.9 se9.2 secs0.9 se 16.7secs2.7 -3.4 12.4
04/2617:00:004.1 2.5 se12.4 secs1.4 se15.4 secs2.0 se 9.1secs2.5 -3.1 12.4
04/2616:00:004.5 3.2 se12.2 secs1.5 se15.3 secs1.8 se 9.2secs3.1 -3.9 12.2
04/2615:00:004.4 2.4 se12.4 secs2.4 se9.1 secs2.1 se 5.9secs2.4 -3.0 12.4
04/2614:00:004.7 2.7 se12.3 secs2.3 se9.1 secs0.7 se 16.7secs2.7 -3.3 12.3
04/2613:00:005.1 3.1 se12.3 secs1.5 se15.4 secs2.3 se 9.2secs3.1 -3.8 12.3
04/2612:00:005.6 3.5 se12.2 secs2.7 se7.1 secs1.2 se 15.2secs3.4 -4.3 12.2
04/2611:00:005.7 3.7 se12.2 secs2.6 se9.2 secs2.3 se 5.9secs3.6 -4.5 12.2
04/2610:00:006.1 3.7 se12.3 secs1.7 se15.3 secs2.8 se 9.2secs3.6 -4.5 12.3
04/2609:00:006.0 3.9 se12.2 secs2.8 se9.1 secs1.5 se 15.5secs3.8 -4.7 12.2
04/2608:00:006.8 4.9 se12.2 secs1.6 se15.3 secs2.6 se 8.3secs4.7 -5.9 12.2
04/2607:00:006.9 4.2 se12.3 secs3.3 se9.1 secs2.4 se 5.9secs4.1 -5.2 12.3
04/2606:00:007.3 5.7 se11.4 secs2.7 se7.7 secs1.3 se 15.4secs5.2 -6.5 11.4
04/2605:00:007.1 4.8 se12.3 secs3.2 se9.2 secs1.0 se 16.7secs4.7 -5.9 12.3
04/2604:00:006.6 4.9 se12.3 secs2.6 se9.2 secs0.9 se 16.7secs4.8 -6.0 12.3
04/2603:00:006.5 4.7 se12.5 secs2.4 se9.2 secs1.0 se 16.7secs4.7 -5.9 12.5
04/2602:00:007.1 4.9 se12.4 secs3.3 se9.2 secs1.3 se 16.7secs4.9 -6.1 12.4
04/2601:00:006.3 4.5 se12.4 secs2.6 se9.2 secs1.9 se 5.9secs4.5 -5.6 12.4
04/2600:00:006.2 4.6 se12.5 secs2.4 se9.2 secs1.3 se 16.7secs4.6 -5.8 12.5
04/2523:00:006.2 4.5 se12.6 secs2.4 se9.1 secs1.3 se 17.2secs4.6 -5.7 12.6
04/2522:00:005.4 4.0 se12.7 secs2.3 se9.2 secs0.8 se 16.7secs4.1 -5.1 12.7
04/2521:00:006.0 4.3 se12.5 secs1.5 se16.7 secs2.6 se 9.2secs4.3 -5.4 12.5
04/2520:00:006.2 4.5 se12.6 secs2.7 se9.2 secs1.0 se 16.7secs4.6 -5.7 12.6
04/2519:00:005.9 4.1 se12.6 secs2.7 se9.2 secs1.2 se 16.7secs4.2 -5.2 12.6

 

Surf Height Scale
Size Scale (ft)
>11-22-33-44-55-66-77-88-99-1010-1111-1212-1313-1414-1515-2020-2525-3030-3535-4040-4545+

Swell Period Scal
Period Scale (secs)
6.36.77.17.78.39.11011.112.514.316.7202533.3

 

Current Weather Conditions
Buoy 46012
18:00:00 (GMT) on 04/26
Combined Sea Height:5.6 ft
Dominant Period:11.0 secs
Wind Speed: 15.6 kts
Wind Gust: 17.6 kts
Wind Direction:310 degrees
Barometric Pressure:1021.7 mbs
Air Temperature: 52.9 degrees
Water Temperature:51.8 degrees

 

24 Hour Weather Observation

Date
(Month/Day)
Time
(GMT)
Combined Sea Height (ft)Dominant Period
(secs)
Wind Speed
(kts)
Gust
(kts)
Wind Direction
(degrees)
Barometric Pressure
(mbs)
Air Temperature
(F)
Water Temperature
(F)
04/2618:00:005.611.015.617.63101021.752.951.8
04/2617:00:005.911.017.619.53101021.552.751.6
04/2616:00:005.911.017.621.43101020.752.951.8
04/2615:00:006.211.015.619.53101020.252.751.8
04/2614:00:006.69.013.717.63201020.052.751.8
04/2613:00:006.96.013.715.63401019.652.551.8
04/2612:00:007.211.015.619.53201019.152.552.0
04/2611:00:007.911.017.621.43201018.652.752.0
04/2610:00:007.911.013.717.63301018.652.952.0
04/2609:00:008.57.017.621.43101018.053.152.0
04/2608:00:008.211.019.521.43101018.353.152.0
04/2607:00:009.212.019.523.43001018.253.152.0
04/2606:00:009.59.019.525.43101018.152.952.2
04/2605:00:009.511.019.525.43101018.353.152.2
04/2604:00:009.511.023.427.33101017.853.452.3
04/2603:00:008.512.023.427.33101017.153.452.3
04/2602:00:008.513.023.427.33101016.753.452.3
04/2601:00:009.212.017.621.43101016.753.652.3
04/2600:00:008.212.019.523.43101016.353.252.5
04/2523:00:008.211.015.619.53101016.253.152.5
04/2522:00:008.212.015.619.53101016.253.152.5
04/2521:00:007.213.015.621.43001016.453.152.5
04/2520:00:007.912.015.619.53101016.352.752.7
04/2519:00:007.913.013.717.63101016.252.552.7

 

000105570 ___0.27447
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