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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)11/27
21:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
21:00:00 (GMT) on 11/27
Sea Height:2.2 ft
Primary Swell Height: 1.8 ft
Primary Swell Period: 12.5 secs
Surf Height1.8 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)
11/2721:00:002.2 1.8 se12.5 secs1.2 se16.3 secs0.4 se 20.0secs1.8 -2.3 12.5
11/2720:00:002.5 2.1 se12.5 secs1.3 se16.5 secs0.6 se 20.0secs2.1 -2.6 12.5
11/2719:00:002.7 2.4 se12.2 secs0.9 se16.1 secs0.8 se 9.2secs2.4 -3.0 12.2
11/2718:00:002.7 2.3 se12.4 secs1.2 se16.0 secs1.1 se 9.3secs2.3 -2.9 12.4
11/2717:00:002.3 1.9 se12.5 secs1.0 se15.8 secs1.0 se 9.2secs1.9 -2.4 12.5
11/2716:00:002.3 1.9 se12.3 secs0.9 se16.0 secs1.1 se 9.2secs1.9 -2.3 12.3
11/2715:00:002.5 2.2 se12.4 secs0.9 se15.5 secs1.1 se 9.2secs2.1 -2.7 12.4
11/2714:00:002.5 2.0 se12.4 secs0.9 se15.5 secs1.2 se 9.2secs2.0 -2.5 12.4
11/2713:00:002.8 2.4 se12.3 secs0.8 se8.5 secs0.4 se 16.7secs2.3 -2.9 12.3
11/2712:00:003.0 2.6 se12.4 secs1.2 se9.3 secs0.4 se 16.7secs2.6 -3.3 12.4
11/2711:00:002.7 2.4 se12.4 secs1.1 se9.3 secs0.4 se 16.7secs2.4 -3.0 12.4
11/2710:00:003.0 2.6 se12.4 secs1.2 se9.3 secs0.4 se 16.7secs2.6 -3.3 12.4
11/2709:00:003.2 3.0 se12.4 secs0.7 se8.5 secs0.3 se 16.7secs2.9 -3.7 12.4
11/2708:00:003.0 2.5 se12.3 secs1.0 se8.6 secs0.4 se 16.7secs2.5 -3.1 12.3
11/2707:00:002.6 2.3 se12.3 secs1.0 se15.5 secs0.8 se 8.5secs2.2 -2.8 12.3
11/2706:00:002.9 2.6 se12.2 secs0.8 se8.5 secs0.3 se 16.7secs2.5 -3.1 12.2
11/2705:00:002.7 2.3 se12.2 secs0.9 se8.5 secs0.3 se 16.7secs2.2 -2.8 12.2
11/2704:00:002.9 2.5 se12.4 secs1.1 se9.3 secs0.4 se 16.7secs2.5 -3.2 12.4
11/2703:00:002.8 2.5 se12.3 secs1.0 se9.2 secs0.4 se 16.7secs2.5 -3.1 12.3
11/2702:00:002.9 2.4 se12.5 secs1.4 se9.3 secs0.4 se 16.7secs2.4 -3.0 12.5
11/2701:00:003.0 2.7 se12.4 secs1.0 se9.2 secs0.4 se 16.7secs2.7 -3.3 12.4
11/2700:00:003.2 2.6 se12.3 secs1.5 se9.3 secs0.2 se 16.7secs2.6 -3.2 12.3
11/2623:00:003.7 3.3 se12.4 secs1.0 se8.4 secs0.3 se 16.7secs3.3 -4.1 12.4
11/2622:00:003.8 3.4 se12.3 secs1.3 se9.2 secs0.2 se 16.7secs3.4 -4.2 12.3

 

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
21:00:00 (GMT) on 11/27
Combined Sea Height:2.6 ft
Dominant Period:12.0 secs
Wind Speed: 5.8 kts
Wind Gust: 7.8 kts
Wind Direction:280 degrees
Barometric Pressure:1018.4 mbs
Air Temperature: 59.7 degrees
Water Temperature:60.4 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)
11/2721:00:002.612.05.87.82801018.459.760.4
11/2720:00:002.611.01.93.92501019.060.160.3
11/2719:00:003.012.03.93.92601020.159.260.1
11/2718:00:003.011.03.93.93001020.858.859.7
11/2717:00:003.011.05.85.82901021.158.859.4
11/2716:00:002.612.05.85.83001021.259.059.4
11/2715:00:002.611.03.95.83101021.058.659.4
11/2714:00:003.012.05.85.83101020.958.659.4
11/2713:00:003.013.03.95.83001020.758.859.4
11/2712:00:003.311.03.95.82901020.558.859.4
11/2711:00:003.311.01.93.92601020.859.259.4
11/2710:00:003.012.01.91.93201021.059.459.5
11/2709:00:003.312.00.01.90001021.359.459.5
11/2708:00:003.612.03.93.93001021.659.959.4
11/2707:00:003.311.01.91.92701021.859.759.2
11/2706:00:003.011.01.95.82801022.159.759.2
11/2705:00:003.311.05.85.82901022.660.159.4
11/2704:00:003.311.03.95.82801022.559.759.4
11/2703:00:003.311.03.93.93101022.360.359.2
11/2702:00:003.312.05.85.82701022.160.359.5
11/2701:00:003.612.03.93.92601022.060.659.7
11/2700:00:003.612.01.91.92101022.060.460.1
11/2623:00:003.911.01.93.92701022.361.560.3
11/2622:00:004.312.01.93.93501022.260.860.4

 

000102040 ___0.241128
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