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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:6.0 ft
Primary Swell Height: 4.8 ft
Primary Swell Period: 12.4 secs
Surf Height4.8 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)
08/3123:00:006.0 4.8 se12.4 secs2.1 se9.2 secs1.0 se 17.3secs4.8 -6.0 12.4
08/3122:00:006.1 4.6 se14.1 secs2.8 se10.4 secs1.9 se 7.2secs5.2 -6.5 14.1
08/3121:00:005.6 4.1 se14.3 secs2.6 se10.3 secs1.8 se 7.1secs4.7 -5.9 14.3
08/3120:00:006.2 4.4 se14.2 secs2.9 se10.2 secs2.3 se 6.7secs5.0 -6.3 14.2
08/3119:00:006.3 4.7 se14.4 secs3.1 se10.3 secs1.7 se 7.1secs5.5 -6.8 14.4
08/3118:00:006.0 4.0 se14.1 secs2.8 se10.3 secs2.4 se 7.2secs4.5 -5.6 14.1
08/3117:00:006.2 4.3 se14.4 secs2.6 se10.3 secs2.4 se 7.2secs5.0 -6.2 14.4
08/3116:00:005.7 4.1 se14.4 secs1.9 se10.3 secs2.1 se 7.2secs4.8 -6.0 14.4
08/3115:00:005.2 3.8 se14.5 secs1.9 se8.3 secs0.2 se 20.0secs4.4 -5.5 14.5
08/3114:00:004.9 3.6 se14.4 secs2.3 se6.2 secs1.4 se 10.2secs4.1 -5.2 14.4
08/3113:00:005.3 4.3 se14.9 secs2.1 se11.8 secs1.7 se 7.8secs5.1 -6.4 14.9
08/3112:00:004.9 3.5 se16.0 secs1.5 se11.6 secs1.7 se 7.7secs4.5 -5.7 16.0
08/3111:00:004.4 3.3 se14.9 secs1.5 se8.3 secs0.0 se 0.0secs4.0 -5.0 14.9
08/3110:00:004.3 3.1 se16.2 secs2.4 se13.2 secs0.7 se 20.0secs4.0 -5.0 16.2
08/3109:00:004.0 2.9 se14.7 secs1.6 se7.7 secs0.5 se 20.0secs3.4 -4.3 14.7
08/3108:00:004.7 3.6 se16.1 secs1.7 se11.8 secs0.7 se 20.0secs4.7 -5.8 16.1
08/3107:00:005.0 4.0 se16.0 secs1.5 se11.7 secs1.8 se 8.2secs5.1 -6.4 16.0
08/3106:00:004.1 2.9 se16.4 secs2.2 se13.2 secs0.9 se 20.0secs3.8 -4.7 16.4
08/3105:00:004.6 3.7 se16.1 secs1.6 se11.9 secs1.8 se 7.7secs4.7 -5.9 16.1
08/3104:00:003.7 2.7 se16.1 secs1.3 se11.6 secs1.6 se 7.7secs3.5 -4.3 16.1
08/3103:00:004.7 3.7 se16.4 secs2.1 se13.0 secs2.0 se 7.8secs4.8 -6.0 16.4
08/3102:00:005.6 4.8 se17.0 secs2.4 se20.0 secs2.9 se 13.2secs6.5 -8.2 17.0
08/3101:00:004.5 3.4 se16.4 secs2.7 se13.2 secs1.2 se 20.0secs4.5 -5.6 16.4
08/3100:00:005.2 4.4 se16.7 secs2.7 se13.3 secs1.8 se 20.0secs5.9 -7.4 16.7

 

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:7.5 ft
Dominant Period:11.0 secs
Wind Speed: 15.6 kts
Wind Gust: 19.5 kts
Wind Direction:310 degrees
Barometric Pressure:1013.7 mbs
Air Temperature: 63.1 degrees
Water Temperature:63.5 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)
08/3123:00:007.511.015.619.53101013.763.163.5
08/3122:00:007.511.015.619.53101014.063.063.5
08/3121:00:007.513.015.617.63101014.463.063.3
08/3120:00:006.914.015.619.53101014.962.863.3
08/3119:00:007.913.015.617.63101015.162.663.3
08/3118:00:007.513.013.717.63201015.362.863.1
08/3117:00:007.513.013.715.63101015.362.863.0
08/3116:00:007.912.011.713.73101015.262.863.0
08/3115:00:007.213.013.717.63201015.062.662.6
08/3114:00:006.916.013.717.63201014.862.462.4
08/3113:00:006.613.013.717.63201014.562.662.2
08/3112:00:006.616.013.715.63201014.462.662.4
08/3111:00:006.616.013.715.63201014.562.862.6
08/3110:00:005.916.013.719.53201014.363.162.8
08/3109:00:005.916.013.715.63201014.563.163.0
08/3108:00:005.616.017.619.53201014.563.363.3
08/3107:00:006.216.017.619.53201014.763.763.5
08/3106:00:006.616.017.623.43201014.863.963.5
08/3105:00:005.617.017.621.43101015.164.063.5
08/3104:00:006.216.015.619.53101015.764.863.7
08/3103:00:005.215.017.619.53101015.564.963.7
08/3102:00:006.216.015.619.53001015.364.863.7
08/3101:00:006.617.017.619.53101015.764.864.0
08/3100:00:005.617.017.619.53001016.364.964.4

 

000107877 ___0.224648
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