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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)08/29
17:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
17:00:00 (GMT) on 08/29
Sea Height:2.9 ft
Primary Swell Height: 2.4 ft
Primary Swell Period: 10.0 secs
Surf Height1.9 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)
08/2917:00:002.9 2.4 se10.0 secs0.9 se6.8 secs0.0 se 0.0secs1.9 -2.4 10.0
08/2812:00:003.4 2.1 se9.0 secs1.4 se12.3 secs0.7 se 15.9secs1.5 -1.9 9.0
08/2811:00:003.5 1.8 se11.0 secs1.1 se14.1 secs2.1 se 7.2secs1.6 -2.0 11.0
08/2810:00:003.6 2.5 se9.0 secs1.3 se12.4 secs0.9 se 16.0secs1.8 -2.3 9.0
08/2809:00:003.2 1.8 se10.1 secs1.0 se14.1 secs1.5 se 6.7secs1.5 -1.8 10.1
08/2808:00:003.2 2.0 se10.0 secs0.9 se14.1 secs1.5 se 6.7secs1.6 -1.9 10.0
08/2807:00:002.9 1.6 se10.0 secs1.0 se14.2 secs1.4 se 6.7secs1.3 -1.6 10.0
08/2806:00:002.8 1.8 se8.4 secs1.2 se12.4 secs0.4 se 16.7secs1.2 -1.5 8.4
08/2805:00:003.2 2.0 se9.1 secs1.3 se12.3 secs1.4 se 5.9secs1.4 -1.8 9.1
08/2804:00:002.9 1.7 se10.1 secs1.0 se14.3 secs1.4 se 6.7secs1.3 -1.7 10.1
08/2803:00:003.2 1.9 se10.1 secs1.0 se14.2 secs1.5 se 6.7secs1.5 -1.9 10.1
08/2802:00:003.6 2.3 se9.0 secs1.3 se12.2 secs1.5 se 5.9secs1.7 -2.1 9.0
08/2801:00:003.9 2.7 se8.4 secs1.4 se12.3 secs0.4 se 16.7secs1.8 -2.2 8.4
08/2800:00:004.4 3.1 se9.1 secs1.6 se12.3 secs1.5 se 5.9secs2.3 -2.9 9.1
08/2723:00:004.4 3.1 se9.0 secs1.7 se12.2 secs1.5 se 5.9secs2.2 -2.8 9.0
08/2722:00:004.2 2.7 se9.0 secs1.6 se12.2 secs1.5 se 5.9secs1.9 -2.4 9.0
08/2721:00:004.1 2.8 se9.1 secs1.5 se12.5 secs1.3 se 5.9secs2.1 -2.6 9.1
08/2720:00:004.5 3.1 se9.0 secs1.9 se12.4 secs1.5 se 5.9secs2.2 -2.7 9.0
08/2719:00:004.0 2.8 se9.0 secs1.5 se12.2 secs0.7 se 15.4secs2.0 -2.5 9.0
08/2718:00:004.1 2.8 se8.9 secs1.8 se12.3 secs1.4 se 5.9secs2.0 -2.5 8.9
08/2717:00:004.0 2.9 se8.4 secs1.6 se12.4 secs0.3 se 16.7secs1.9 -2.4 8.4
08/2716:00:003.7 2.1 se9.9 secs1.3 se13.8 secs1.8 se 6.7secs1.7 -2.1 9.9
08/2715:00:004.2 2.7 se9.9 secs1.5 se13.7 secs1.6 se 6.7secs2.1 -2.6 9.9
08/2714:00:003.7 1.8 se12.2 secs2.4 se8.3 secs0.7 se 15.2secs1.8 -2.2 12.2

 

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
19:00:00 (GMT) on 08/29
Combined Sea Height:0.0 ft
Dominant Period:0.0 secs
Wind Speed: 7.8 kts
Wind Gust: 9.8 kts
Wind Direction:150 degrees
Barometric Pressure: 0.0 mbs
Air Temperature: 64.4 degrees
Water Temperature:65.1 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)
08/2919:00:000.00.07.89.81500.064.465.1
08/2916:00:004.310.011.713.71400.072.573.6
08/2811:00:004.98.03.93.91300.058.659.2
08/2810:00:004.98.01.93.90500.059.259.4
08/2809:00:005.28.05.85.83400.059.759.4
08/2808:00:004.68.05.87.83200.060.159.4
08/2807:00:004.98.07.89.83100.060.159.4
08/2806:00:004.39.05.85.83200.059.959.2
08/2805:00:004.38.011.713.73100.059.259.2
08/2802:00:004.98.011.715.63200.058.559.0
08/2801:00:005.68.011.713.73200.058.859.0
08/2800:00:005.98.011.713.73100.059.259.2
08/2723:00:006.69.09.811.73000.058.859.2
08/2722:00:006.69.09.811.73000.058.358.8
08/2721:00:006.28.07.89.82900.058.158.8
08/2720:00:005.98.07.89.82700.058.358.8
08/2719:00:006.68.05.87.82200.058.858.8
08/2718:00:005.98.03.95.82500.058.858.6
08/2717:00:005.98.03.93.92600.058.658.6
08/2716:00:005.98.03.95.82100.058.358.8
08/2715:00:005.69.05.87.82600.057.958.5
08/2714:00:005.99.05.87.82600.058.358.6
08/2713:00:005.28.07.89.82600.058.858.5
08/2712:00:004.98.07.89.82400.059.558.6

 

000155900 ___0.101166
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