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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)03/27
15:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
15:00:00 (GMT) on 03/27
Sea Height:4.0 ft
Primary Swell Height: 2.5 ft
Primary Swell Period: 14.5 secs
Surf Height2.9 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)
03/2715:00:004.0 2.5 se14.5 secs1.7 se17.8 secs2.7 se 11.3secs2.9 -3.7 14.5
03/2714:00:004.7 3.4 se12.3 secs2.3 se16.3 secs2.0 se 9.3secs3.3 -4.1 12.3
03/2713:00:005.0 3.7 se12.4 secs2.5 se16.3 secs2.3 se 9.3secs3.7 -4.6 12.4
03/2712:00:004.5 3.1 se12.3 secs2.0 se16.6 secs1.8 se 8.5secs3.1 -3.9 12.3
03/2711:00:004.3 2.7 se14.6 secs1.9 se18.5 secs3.0 se 11.3secs3.1 -3.9 14.6
03/2710:00:004.4 3.1 se14.2 secs1.6 se17.4 secs2.6 se 10.3secs3.5 -4.4 14.2
03/2709:00:004.4 2.8 se14.5 secs3.3 se11.3 secs1.8 se 17.9secs3.2 -4.0 14.5
03/2708:00:004.2 3.0 se12.3 secs1.9 se16.7 secs1.8 se 9.2secs2.9 -3.6 12.3
03/2707:00:004.8 3.7 se12.2 secs2.0 se16.9 secs0.9 se 20.0secs3.6 -4.5 12.2
03/2706:00:004.9 3.7 se12.3 secs1.9 se16.4 secs1.6 se 8.5secs3.6 -4.6 12.3
03/2705:00:004.5 3.5 se12.2 secs1.7 se16.4 secs1.4 se 8.5secs3.5 -4.3 12.2
03/2704:00:004.6 3.2 se12.2 secs1.8 se16.5 secs1.9 se 8.5secs3.2 -4.0 12.2
03/2703:00:005.5 4.5 se12.2 secs1.9 se16.4 secs2.1 se 9.1secs4.4 -5.4 12.2
03/2702:00:004.9 3.9 se11.2 secs1.6 se16.3 secs1.7 se 7.7secs3.5 -4.4 11.2
03/2701:00:004.8 3.3 se12.3 secs2.0 se16.6 secs2.4 se 9.2secs3.2 -4.0 12.3
03/2700:00:005.3 4.2 se11.3 secs1.9 se17.2 secs1.6 se 7.8secs3.8 -4.8 11.3
03/2623:00:004.5 3.2 se12.3 secs1.6 se16.4 secs2.2 se 9.3secs3.1 -3.9 12.3
03/2622:00:004.5 3.6 se11.2 secs1.2 se16.4 secs1.4 se 7.7secs3.3 -4.1 11.2
03/2621:00:004.7 3.5 se12.2 secs1.9 se16.8 secs0.9 se 20.0secs3.4 -4.3 12.2
03/2620:00:004.2 2.9 se12.3 secs1.4 se16.5 secs1.9 se 9.2secs2.8 -3.5 12.3
03/2619:00:004.5 3.2 se12.1 secs1.2 se16.5 secs1.5 se 8.4secs3.1 -3.9 12.1
03/2618:00:004.6 3.2 se12.2 secs1.5 se16.8 secs1.9 se 9.2secs3.1 -3.9 12.2
03/2617:00:005.1 3.9 se12.2 secs1.4 se16.1 secs1.8 se 8.4secs3.8 -4.7 12.2
03/2616:00:005.1 3.6 se12.1 secs1.7 se16.5 secs2.0 se 7.1secs3.5 -4.4 12.1

 

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
15:00:00 (GMT) on 03/27
Combined Sea Height:5.2 ft
Dominant Period:12.0 secs
Wind Speed: 9.8 kts
Wind Gust: 13.7 kts
Wind Direction:320 degrees
Barometric Pressure:1020.7 mbs
Air Temperature: 53.1 degrees
Water Temperature:56.8 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)
03/2715:00:005.212.09.813.73201020.753.156.8
03/2714:00:004.911.09.811.73201020.352.757.6
03/2713:00:005.611.09.811.73001019.652.557.7
03/2712:00:005.911.09.811.73201019.452.257.9
03/2711:00:005.611.07.811.73201019.252.357.9
03/2710:00:005.211.07.811.73201019.152.357.9
03/2709:00:005.212.07.811.73301019.452.257.9
03/2708:00:005.211.05.89.83201019.652.557.9
03/2707:00:005.211.07.89.83101019.652.758.1
03/2706:00:005.911.09.811.72901019.953.158.1
03/2705:00:005.912.07.811.73201019.653.157.9
03/2704:00:005.611.07.89.83201019.352.957.7
03/2703:00:005.911.09.811.73101018.953.457.7
03/2702:00:006.911.011.713.73201018.453.457.9
03/2701:00:006.210.011.713.73201018.354.058.3
03/2700:00:006.211.013.715.63201018.354.058.5
03/2623:00:006.611.011.715.63101018.354.358.5
03/2622:00:005.912.013.715.63101018.554.758.5
03/2621:00:005.911.09.811.73201018.955.958.5
03/2620:00:005.911.011.713.73301019.654.958.3
03/2619:00:005.611.011.713.73201020.354.758.3
03/2618:00:005.911.09.811.73301020.754.158.1
03/2617:00:005.911.011.713.73401021.153.458.1
03/2616:00:006.611.011.713.73401020.952.957.9

 

000104978 ___0.553417
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