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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)09/26
01:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
01:00:00 (GMT) on 09/26
Sea Height:3.1 ft
Primary Swell Height: 2.0 ft
Primary Swell Period: 9.0 secs
Surf Height1.5 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)
09/2601:00:003.1 2.0 se9.0 secs1.1 se12.6 secs1.2 se 5.9secs1.5 -1.8 9.0
09/2600:00:003.4 2.4 se8.3 secs1.1 se12.6 secs0.2 se 16.7secs1.6 -2.0 8.3
09/2523:00:003.3 2.3 se8.3 secs1.2 se12.4 secs0.3 se 16.7secs1.6 -1.9 8.3
09/2522:00:003.2 2.3 se8.4 secs1.3 se12.5 secs0.3 se 16.7secs1.5 -1.9 8.4
09/2521:00:003.5 2.7 se8.3 secs1.0 se12.5 secs0.2 se 16.7secs1.8 -2.2 8.3
09/2520:00:003.3 2.3 se8.4 secs1.0 se14.5 secs0.0 se 0.0secs1.5 -1.9 8.4
09/2519:00:003.0 2.1 se8.3 secs1.1 se12.5 secs0.2 se 16.7secs1.4 -1.8 8.3
09/2518:00:003.7 2.6 se8.3 secs1.2 se12.5 secs0.3 se 16.7secs1.7 -2.2 8.3
09/2517:00:003.5 2.5 se8.9 secs1.0 se12.4 secs1.1 se 5.6secs1.8 -2.2 8.9
09/2516:00:003.8 2.9 se8.3 secs1.1 se12.3 secs0.3 se 16.7secs1.9 -2.4 8.3
09/2515:00:004.0 2.9 se8.3 secs1.3 se12.4 secs0.4 se 16.7secs1.9 -2.4 8.3
09/2514:00:003.5 2.2 se8.3 secs1.1 se12.5 secs0.3 se 16.7secs1.5 -1.9 8.3
09/2513:00:002.8 1.8 se7.7 secs1.0 se12.4 secs0.6 se 15.9secs1.1 -1.4 7.7
09/2512:00:003.1 1.3 se12.5 secs1.7 se9.0 secs1.1 se 5.9secs1.3 -1.7 12.5
09/2511:00:003.0 1.7 se8.9 secs1.2 se12.3 secs1.4 se 5.9secs1.2 -1.5 8.9
09/2510:00:003.1 1.9 se8.4 secs1.2 se12.3 secs0.3 se 16.7secs1.3 -1.6 8.4
09/2509:00:002.9 2.0 se8.3 secs1.2 se12.5 secs0.8 se 15.7secs1.3 -1.6 8.3
09/2508:00:002.6 1.7 se8.3 secs1.1 se12.1 secs0.4 se 15.6secs1.1 -1.4 8.3
09/2507:00:002.5 1.1 se12.3 secs1.4 se9.0 secs1.1 se 5.9secs1.0 -1.3 12.3
09/2506:00:002.6 1.1 se12.6 secs1.5 se9.0 secs1.1 se 5.9secs1.1 -1.4 12.6
09/2505:00:003.0 2.2 se7.8 secs1.2 se11.2 secs0.5 se 16.3secs1.4 -1.7 7.8
09/2504:00:003.3 2.1 se8.4 secs1.2 se12.4 secs0.4 se 16.7secs1.4 -1.8 8.4
09/2503:00:003.3 1.8 se10.0 secs1.0 se14.1 secs1.6 se 6.7secs1.4 -1.8 10.0
09/2502:00:003.7 2.6 se8.3 secs1.4 se12.3 secs0.3 se 16.7secs1.7 -2.1 8.3

 

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
00:00:00 (GMT) on 09/26
Combined Sea Height:4.9 ft
Dominant Period:8.0 secs
Wind Speed: 13.7 kts
Wind Gust: 17.6 kts
Wind Direction:320 degrees
Barometric Pressure:1011.4 mbs
Air Temperature: 61.9 degrees
Water Temperature:63.0 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)
09/2600:00:004.98.013.717.63201011.461.963.0
09/2523:00:005.28.015.619.53301011.461.562.8
09/2522:00:004.98.013.717.63201011.761.363.0
09/2521:00:004.98.013.717.63201012.261.362.8
09/2520:00:005.28.015.617.63201012.761.062.6
09/2519:00:004.98.011.713.73301013.260.662.6
09/2518:00:004.98.011.713.73301013.760.862.6
09/2517:00:005.68.07.89.83201013.960.662.4
09/2516:00:005.28.03.95.83401014.060.462.4
09/2515:00:005.68.05.87.83601013.960.162.1
09/2514:00:005.98.07.89.83401013.659.762.1
09/2513:00:005.28.07.89.83401013.459.561.9
09/2512:00:004.38.07.89.83301013.259.562.1
09/2511:00:004.68.07.89.83501013.059.262.1
09/2510:00:004.68.011.713.73401012.959.962.1
09/2509:00:004.98.011.713.73201013.060.462.2
09/2508:00:004.38.09.811.73301013.560.862.2
09/2507:00:004.38.011.711.73201013.661.062.2
09/2506:00:003.98.09.811.73201013.761.262.2
09/2505:00:004.38.09.811.73201013.861.762.2
09/2504:00:004.68.07.89.83201014.162.162.4
09/2503:00:004.98.09.813.73201014.062.162.4
09/2502:00:004.98.09.811.73101013.461.762.2
09/2501:00:005.28.09.811.73201013.661.761.9

 

000159097 ___0.178887
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