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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)04/28
08:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
08:00:00 (GMT) on 04/28
Sea Height:4.6 ft
Primary Swell Height: 2.2 ft
Primary Swell Period: 14.6 secs
Surf Height2.6 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)
04/2808:00:004.6 2.2 se14.6 secs2.6 se10.0 secs2.1 se 6.7secs2.6 -3.2 14.6
04/2807:00:004.3 1.8 se14.6 secs2.3 se10.1 secs1.8 se 6.7secs2.1 -2.7 14.6
04/2806:00:004.2 2.1 se11.1 secs1.5 se14.2 secs2.2 se 6.6secs1.9 -2.4 11.1
04/2805:00:004.2 2.4 se11.1 secs1.2 se15.4 secs2.1 se 7.8secs2.1 -2.7 11.1
04/2804:00:004.2 1.8 se13.9 secs2.0 se10.1 secs2.3 se 6.7secs2.1 -2.6 13.9
04/2803:00:004.0 1.7 se12.6 secs2.3 se9.1 secs1.8 se 5.9secs1.7 -2.2 12.6
04/2802:00:004.1 1.6 se14.0 secs1.8 se10.0 secs2.1 se 6.7secs1.8 -2.3 14.0
04/2801:00:003.9 1.7 se13.9 secs2.1 se8.9 secs1.6 se 5.9secs1.9 -2.4 13.9
04/2800:00:004.0 1.6 se12.7 secs2.0 se8.3 secs0.4 se 16.7secs1.6 -2.0 12.7
04/2723:00:003.8 1.5 se14.0 secs2.3 se7.7 secs0.0 se 0.0secs1.7 -2.1 14.0
04/2722:00:003.9 1.5 se13.7 secs2.5 se7.7 secs0.0 se 0.0secs1.7 -2.1 13.7
04/2721:00:003.4 1.3 se14.0 secs2.0 se8.3 secs0.0 se 0.0secs1.4 -1.8 14.0
04/2720:00:003.8 2.6 se7.7 secs1.3 se13.8 secs0.0 se 0.0secs1.6 -2.0 7.7
04/2719:00:003.7 2.2 se8.3 secs0.9 se14.0 secs0.0 se 0.0secs1.5 -1.8 8.3
04/2718:00:003.5 2.4 se7.1 secs0.9 se13.9 secs0.0 se 0.0secs1.3 -1.7 7.1
04/2717:00:003.8 2.4 se7.7 secs1.1 se14.2 secs1.3 se 11.0secs1.5 -1.8 7.7
04/2716:00:004.0 2.8 se7.7 secs1.2 se12.9 secs0.0 se 0.0secs1.7 -2.2 7.7
04/2715:00:003.7 2.4 se7.1 secs1.1 se14.4 secs1.0 se 11.0secs1.4 -1.7 7.1
04/2714:00:003.7 2.2 se7.1 secs1.0 se14.2 secs1.1 se 10.9secs1.3 -1.6 7.1
04/2713:00:004.0 2.5 se7.1 secs1.3 se11.0 secs0.7 se 14.3secs1.4 -1.8 7.1
04/2712:00:004.1 2.8 se6.6 secs1.1 se12.7 secs0.0 se 0.0secs1.5 -1.8 6.6
04/2711:00:003.6 2.3 se6.7 secs1.1 se12.9 secs0.1 se 16.7secs1.2 -1.5 6.7
04/2710:00:003.9 2.5 se6.7 secs1.2 se12.8 secs0.3 se 16.7secs1.4 -1.7 6.7
04/2709:00:004.1 1.5 se12.8 secs2.3 se7.1 secs0.5 se 16.7secs1.6 -2.0 12.8

 

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
08:00:00 (GMT) on 04/28
Combined Sea Height:6.9 ft
Dominant Period:7.0 secs
Wind Speed: 15.6 kts
Wind Gust: 19.5 kts
Wind Direction:330 degrees
Barometric Pressure:1017.4 mbs
Air Temperature: 52.5 degrees
Water Temperature:52.5 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)
04/2808:00:006.97.015.619.53301017.452.552.5
04/2807:00:006.69.015.617.63301017.852.552.0
04/2806:00:006.28.013.715.63201017.552.552.2
04/2805:00:006.26.015.619.53201017.152.551.8
04/2804:00:006.28.015.621.43201017.052.351.8
04/2803:00:006.27.017.621.43201016.152.251.8
04/2802:00:006.28.017.621.43201015.452.251.8
04/2801:00:006.67.019.523.43101014.952.051.8
04/2800:00:006.28.017.621.43101014.851.852.0
04/2723:00:006.67.015.619.53201015.151.651.8
04/2722:00:006.28.017.621.43201015.451.651.8
04/2721:00:006.28.017.619.53101016.051.452.0
04/2720:00:005.68.017.619.53101016.150.952.0
04/2719:00:005.97.013.717.63201016.451.152.0
04/2718:00:005.68.09.811.73101017.052.751.8
04/2717:00:005.67.011.713.73301016.952.751.6
04/2716:00:005.97.013.715.63201016.852.551.6
04/2715:00:006.28.011.713.73301016.852.551.4
04/2714:00:005.97.09.811.73301016.852.751.4
04/2713:00:005.97.011.715.63401016.352.551.4
04/2712:00:006.27.015.619.53301015.952.551.4
04/2711:00:006.66.015.619.53301016.252.551.4
04/2710:00:005.96.013.715.63301016.752.751.6
04/2709:00:006.26.015.619.53301016.852.951.6

 

000105590 ___0.236038
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