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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)08/27
11:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
11:00:00 (GMT) on 08/27
Sea Height:5.0 ft
Primary Swell Height: 4.1 ft
Primary Swell Period: 14.5 secs
Surf Height4.8 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)
08/2711:00:005.0 4.1 se14.5 secs1.8 se10.2 secs0.5 se 20.0secs4.8 -6.0 14.5
08/2710:00:004.8 4.1 se14.5 secs1.6 se10.2 secs0.6 se 20.0secs4.8 -5.9 14.5
08/2709:00:004.5 3.3 se14.5 secs2.1 se17.8 secs1.9 se 10.1secs3.9 -4.9 14.5
08/2708:00:004.4 3.5 se14.6 secs1.9 se8.4 secs0.5 se 20.0secs4.0 -5.1 14.6
08/2707:00:004.6 3.5 se14.4 secs2.1 se17.7 secs2.0 se 10.2secs4.1 -5.1 14.4
08/2706:00:004.0 2.5 se14.4 secs1.6 se17.8 secs2.1 se 10.1secs2.9 -3.7 14.4
08/2705:00:004.3 3.1 se14.4 secs2.2 se10.1 secs0.5 se 20.0secs3.6 -4.4 14.4
08/2704:00:004.0 2.8 se14.3 secs1.6 se18.0 secs1.7 se 10.1secs3.2 -4.0 14.3
08/2703:00:004.2 2.9 se14.2 secs1.3 se17.6 secs2.1 se 10.0secs3.3 -4.2 14.2
08/2702:00:004.5 3.5 se14.2 secs1.6 se17.8 secs1.8 se 10.0secs3.9 -4.9 14.2
08/2701:00:004.5 3.4 se14.2 secs1.5 se18.0 secs2.0 se 9.0secs3.9 -4.9 14.2
08/2700:00:004.3 3.0 se14.1 secs1.3 se17.8 secs2.0 se 10.1secs3.4 -4.3 14.1
08/2623:00:004.0 2.8 se14.3 secs1.3 se17.5 secs1.9 se 9.9secs3.1 -3.9 14.3
08/2622:00:004.0 2.5 se14.3 secs1.5 se17.9 secs2.0 se 10.0secs2.8 -3.5 14.3
08/2621:00:003.8 2.3 se14.3 secs2.0 se11.3 secs1.2 se 17.9secs2.7 -3.4 14.3
08/2620:00:003.7 2.3 se14.3 secs1.1 se17.5 secs2.1 se 9.1secs2.6 -3.3 14.3
08/2619:00:004.0 2.1 se16.5 secs2.2 se12.8 secs2.4 se 9.8secs2.8 -3.5 16.5
08/2618:00:004.0 2.3 se14.2 secs1.3 se18.2 secs2.6 se 9.1secs2.6 -3.2 14.2
08/2617:00:003.7 2.2 se14.2 secs1.2 se18.0 secs2.2 se 8.4secs2.5 -3.1 14.2
08/2616:00:004.1 2.4 se14.1 secs2.6 se9.0 secs1.0 se 17.6secs2.7 -3.4 14.1
08/2615:00:004.0 2.0 se16.5 secs2.2 se12.8 secs2.2 se 9.1secs2.7 -3.4 16.5
08/2614:00:004.0 2.2 se16.7 secs2.2 se12.8 secs1.1 se 20.0secs2.9 -3.7 16.7
08/2613:00:003.8 2.3 se14.1 secs1.0 se17.9 secs2.2 se 8.4secs2.6 -3.3 14.1
08/2612:00:003.7 2.0 se14.1 secs2.1 se8.4 secs1.0 se 18.0secs2.2 -2.8 14.1

 

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
11:00:00 (GMT) on 08/27
Combined Sea Height:5.9 ft
Dominant Period:16.0 secs
Wind Speed: 5.8 kts
Wind Gust: 7.8 kts
Wind Direction:330 degrees
Barometric Pressure:1016.6 mbs
Air Temperature: 63.1 degrees
Water Temperature:64.8 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)
08/2711:00:005.916.05.87.83301016.663.164.8
08/2710:00:005.916.05.85.83201016.563.364.9
08/2709:00:005.614.05.87.83101016.463.565.1
08/2708:00:005.214.03.95.83001016.163.564.9
08/2707:00:005.214.03.95.83001016.163.764.9
08/2706:00:005.213.05.85.83101016.163.764.8
08/2705:00:004.98.03.95.83201016.263.964.9
08/2704:00:005.212.03.95.83201016.063.964.9
08/2703:00:004.913.05.87.83201015.464.064.9
08/2702:00:005.213.05.87.83301015.064.065.1
08/2701:00:005.213.05.87.83301014.864.465.3
08/2700:00:005.614.05.87.83201014.964.665.3
08/2623:00:005.214.07.89.83101015.064.465.7
08/2622:00:004.914.05.87.83101015.464.265.8
08/2621:00:004.99.05.87.82901015.863.966.0
08/2620:00:004.99.03.93.92901016.363.765.7
08/2619:00:004.68.03.93.92601016.663.566.0
08/2618:00:005.29.01.93.92001016.763.765.1
08/2617:00:005.29.03.93.91801016.963.964.9
08/2616:00:004.69.01.93.91301016.563.764.4
08/2615:00:005.29.01.93.91501016.162.864.2
08/2614:00:005.29.01.93.91201015.862.664.2
08/2613:00:005.28.01.93.90901015.562.664.2
08/2612:00:004.98.01.93.90601014.962.464.2

 

000099823 ___0.570287
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