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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)08/31
23:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
23:00:00 (GMT) on 08/31
Sea Height:4.4 ft
Primary Swell Height: 1.6 ft
Primary Swell Period: 14.4 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)
08/3123:00:004.4 1.6 se14.4 secs2.9 se7.6 secs0.0 se 0.0secs1.8 -2.3 14.4
08/3122:00:004.2 1.8 se14.3 secs2.6 se7.7 secs0.0 se 0.0secs2.1 -2.6 14.3
08/3121:00:004.2 1.8 se14.6 secs2.6 se7.7 secs1.3 se 11.5secs2.1 -2.7 14.6
08/3120:00:004.0 1.8 se14.6 secs2.7 se7.2 secs1.2 se 11.4secs2.1 -2.6 14.6
08/3119:00:003.9 1.6 se14.7 secs2.6 se7.1 secs1.1 se 11.4secs1.9 -2.4 14.7
08/3118:00:004.1 1.5 se14.6 secs2.9 se7.2 secs1.1 se 11.4secs1.8 -2.2 14.6
08/3117:00:004.1 3.0 se7.1 secs1.3 se14.6 secs1.2 se 11.3secs1.7 -2.1 7.1
08/3116:00:004.2 1.5 se14.7 secs3.0 se7.1 secs1.1 se 11.3secs1.8 -2.2 14.7
08/3115:00:004.2 2.9 se7.1 secs1.2 se14.6 secs0.9 se 11.2secs1.6 -2.0 7.1
08/3114:00:003.8 1.4 se14.9 secs2.5 se7.1 secs1.0 se 11.2secs1.7 -2.1 14.9
08/3113:00:003.6 1.3 se14.5 secs2.6 se7.1 secs1.0 se 11.4secs1.5 -1.9 14.5
08/3112:00:003.7 2.4 se7.1 secs1.2 se14.6 secs1.0 se 11.2secs1.4 -1.7 7.1
08/3111:00:004.1 3.0 se7.1 secs1.4 se14.7 secs0.9 se 11.3secs1.7 -2.1 7.1
08/3110:00:004.2 1.9 se14.8 secs3.0 se7.6 secs0.9 se 11.3secs2.2 -2.8 14.8
08/3109:00:004.6 3.3 se7.6 secs1.5 se14.7 secs1.0 se 11.4secs2.0 -2.5 7.6
08/3108:00:004.4 3.1 se7.2 secs1.4 se14.7 secs1.2 se 11.2secs1.8 -2.2 7.2
08/3107:00:004.1 2.9 se7.7 secs1.3 se14.5 secs1.1 se 11.3secs1.7 -2.2 7.7
08/3106:00:005.1 3.8 se7.2 secs1.5 se14.7 secs1.1 se 11.2secs2.2 -2.7 7.2
08/3105:00:004.8 3.2 se7.2 secs1.5 se14.3 secs1.5 se 11.3secs1.8 -2.3 7.2
08/3104:00:005.0 3.2 se7.6 secs1.4 se14.5 secs1.4 se 11.1secs2.0 -2.5 7.6
08/3103:00:004.3 1.5 se14.3 secs2.8 se7.1 secs1.3 se 11.2secs1.7 -2.1 14.3
08/3102:00:004.5 1.7 se14.6 secs3.0 se6.7 secs1.9 se 10.0secs2.0 -2.5 14.6
08/3101:00:004.2 2.8 se7.2 secs1.3 se14.4 secs1.2 se 11.1secs1.6 -2.0 7.2
08/3100:00:004.3 2.8 se7.6 secs1.4 se14.6 secs1.3 se 11.1secs1.7 -2.1 7.6

 

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
23:00:00 (GMT) on 08/31
Combined Sea Height:6.2 ft
Dominant Period:7.0 secs
Wind Speed: 15.6 kts
Wind Gust: 19.5 kts
Wind Direction:310 degrees
Barometric Pressure:1012.5 mbs
Air Temperature: 62.8 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)
08/3123:00:006.27.015.619.53101012.562.863.0
08/3122:00:006.67.013.715.63101013.062.463.0
08/3121:00:006.68.015.619.53201013.362.463.1
08/3120:00:006.28.015.619.53201013.862.463.0
08/3119:00:006.28.017.619.53201014.162.262.8
08/3118:00:006.27.013.719.53201014.462.462.6
08/3117:00:006.67.015.617.63201014.462.262.4
08/3116:00:006.67.017.619.53201014.262.262.4
08/3115:00:006.97.015.621.43201013.962.463.0
08/3114:00:006.67.013.719.53301013.562.663.1
08/3113:00:005.97.015.619.53101013.162.663.3
08/3112:00:005.67.013.717.63201013.262.863.5
08/3111:00:005.97.011.715.63201013.263.063.5
08/3110:00:006.27.013.715.63201013.262.663.7
08/3109:00:006.27.015.619.53201013.162.863.9
08/3108:00:006.97.013.717.63101013.263.363.7
08/3107:00:006.98.015.617.63101013.163.163.7
08/3106:00:006.67.017.623.43101012.963.163.7
08/3105:00:007.97.019.525.43101012.763.163.7
08/3104:00:007.57.021.425.43101012.763.163.9
08/3103:00:007.57.019.523.43201012.564.063.9
08/3102:00:006.97.017.619.53101012.564.263.9
08/3101:00:006.97.019.523.41901012.364.264.0
08/3100:00:006.67.015.617.62001012.764.464.0

 

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