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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)02/27
16:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
16:00:00 (GMT) on 02/27
Sea Height:4.4 ft
Primary Swell Height: 3.6 ft
Primary Swell Period: 15.8 secs
Surf Height4.6 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)
02/2716:00:004.4 3.6 se15.8 secs1.6 se11.4 secs1.3 se 8.4secs4.6 -5.7 15.8
02/2715:00:004.9 4.1 se16.0 secs1.9 se11.6 secs0.7 se 20.0secs5.3 -6.6 16.0
02/2714:00:005.0 4.2 se16.4 secs2.8 se13.0 secs1.0 se 20.0secs5.5 -6.9 16.4
02/2713:00:005.4 4.7 se16.0 secs1.6 se11.4 secs1.3 se 8.4secs6.0 -7.5 16.0
02/2712:00:004.7 3.7 se16.6 secs2.5 se13.0 secs1.3 se 20.0secs4.9 -6.2 16.6
02/2711:00:005.6 4.8 se16.5 secs2.8 se13.0 secs1.3 se 20.0secs6.4 -8.0 16.5
02/2710:00:005.6 4.6 se16.3 secs3.4 se13.1 secs1.2 se 20.0secs6.0 -7.5 16.3
02/2709:00:006.1 5.2 se16.6 secs3.4 se13.1 secs1.7 se 20.0secs6.9 -8.6 16.6
02/2708:00:005.9 4.8 se16.3 secs3.5 se13.2 secs1.2 se 20.0secs6.2 -7.8 16.3
02/2707:00:005.4 4.0 se16.3 secs3.7 se13.0 secs1.2 se 20.0secs5.2 -6.5 16.3
02/2706:00:005.7 4.7 se16.0 secs2.3 se11.4 secs0.8 se 20.0secs6.0 -7.5 16.0
02/2705:00:005.6 4.1 se16.0 secs3.8 se12.8 secs2.1 se 9.1secs5.2 -6.5 16.0
02/2704:00:005.6 4.1 se16.3 secs3.5 se13.0 secs1.1 se 20.0secs5.3 -6.6 16.3
02/2703:00:006.2 4.9 se16.2 secs4.0 se13.0 secs1.2 se 20.0secs6.4 -8.0 16.2
02/2702:00:006.3 5.1 se16.4 secs3.4 se13.0 secs1.2 se 20.0secs6.7 -8.4 16.4
02/2701:00:005.7 4.1 se16.3 secs3.4 se12.7 secs2.3 se 9.2secs5.4 -6.8 16.3
02/2700:00:005.6 4.2 se16.3 secs3.5 se12.8 secs0.9 se 20.0secs5.5 -6.9 16.3
02/2623:00:005.0 3.5 se16.7 secs2.9 se12.6 secs1.3 se 20.0secs4.7 -5.9 16.7
02/2622:00:005.1 3.8 se16.5 secs2.8 se12.8 secs1.1 se 20.0secs5.0 -6.3 16.5
02/2621:00:004.7 3.3 se16.4 secs3.2 se12.9 secs1.1 se 20.0secs4.3 -5.4 16.4
02/2620:00:004.4 3.0 se14.4 secs2.0 se18.3 secs2.9 se 11.3secs3.5 -4.4 14.4
02/2619:00:004.5 3.2 se16.7 secs3.2 se12.7 secs1.5 se 20.5secs4.2 -5.3 16.7
02/2618:00:004.0 3.0 se16.7 secs2.8 se12.9 secs1.5 se 20.8secs4.0 -5.0 16.7
02/2617:00:004.0 3.0 se16.5 secs2.8 se13.0 secs1.2 se 20.0secs3.9 -4.9 16.5

 

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
16:00:00 (GMT) on 02/27
Combined Sea Height:6.2 ft
Dominant Period:15.0 secs
Wind Speed: 9.8 kts
Wind Gust: 13.7 kts
Wind Direction:340 degrees
Barometric Pressure:1014.5 mbs
Air Temperature: 49.8 degrees
Water Temperature:53.8 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)
02/2716:00:006.215.09.813.73401014.549.853.8
02/2715:00:005.215.09.813.73501013.949.353.8
02/2714:00:005.616.09.813.73301013.449.354.0
02/2713:00:005.916.09.811.73601013.048.954.0
02/2712:00:006.616.011.713.73401012.749.154.0
02/2711:00:005.916.09.813.73101012.549.354.0
02/2710:00:006.616.013.715.63201012.849.554.1
02/2709:00:006.616.011.715.63001013.150.454.1
02/2708:00:006.917.09.811.72701013.250.454.1
02/2707:00:006.916.09.811.72701013.250.054.1
02/2706:00:006.616.09.813.72901013.349.354.1
02/2705:00:006.916.09.811.73101013.349.554.3
02/2704:00:006.616.09.813.73001013.150.054.3
02/2703:00:006.616.011.713.72901013.149.654.5
02/2702:00:007.216.011.715.63101013.350.454.7
02/2701:00:007.216.09.813.73001013.351.454.9
02/2700:00:006.916.09.813.73101013.751.855.0
02/2623:00:006.616.09.811.72901013.952.354.7
02/2622:00:005.917.09.811.73001014.252.054.7
02/2621:00:005.916.07.811.73101014.752.054.9
02/2620:00:005.214.09.811.73101015.252.254.7
02/2619:00:005.210.05.87.83001015.752.254.3
02/2618:00:004.914.03.97.83401015.852.054.0
02/2617:00:004.614.05.85.83301015.751.853.6

 

000144802 ___0.178629
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