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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)07/20
09:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
09:00:00 (GMT) on 07/20
Sea Height:5.1 ft
Primary Swell Height: 3.9 ft
Primary Swell Period: 10.1 secs
Surf Height3.2 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)
07/2009:00:005.1 3.9 se10.1 secs1.5 se14.3 secs0.8 se 17.5secs3.2 -4.0 10.1
07/2008:00:004.6 3.7 se10.1 secs1.3 se14.3 secs1.6 se 6.7secs3.0 -3.7 10.1
07/2007:00:005.2 4.2 se10.0 secs1.2 se14.3 secs0.7 se 17.6secs3.3 -4.2 10.0
07/2006:00:005.0 3.7 se10.1 secs1.5 se14.4 secs1.7 se 6.8secs3.0 -3.7 10.1
07/2005:00:005.3 4.1 se10.0 secs1.6 se14.2 secs1.6 se 6.7secs3.3 -4.1 10.0
07/2004:00:004.6 3.2 se9.9 secs1.4 se14.1 secs1.7 se 6.7secs2.5 -3.2 9.9
07/2003:00:005.0 3.8 se10.0 secs1.6 se14.2 secs1.5 se 6.8secs3.1 -3.8 10.0
07/2002:00:004.6 3.5 se10.1 secs1.4 se14.2 secs0.7 se 17.5secs2.8 -3.5 10.1
07/2001:00:004.9 3.9 se10.0 secs1.6 se14.0 secs0.7 se 17.5secs3.2 -4.0 10.0
07/2000:00:004.6 3.8 se10.1 secs1.4 se14.1 secs0.7 se 17.5secs3.1 -3.8 10.1
07/1923:00:005.3 4.1 se11.0 secs1.0 se15.9 secs1.8 se 7.8secs3.6 -4.5 11.0
07/1922:00:005.0 3.6 se11.0 secs1.1 se16.1 secs2.2 se 7.8secs3.2 -4.0 11.0
07/1921:00:004.9 3.5 se10.9 secs2.6 se7.8 secs1.4 se 14.0secs3.0 -3.8 10.9
07/1920:00:004.9 3.8 se10.1 secs1.4 se14.0 secs0.6 se 17.6secs3.0 -3.8 10.1
07/1919:00:004.6 3.6 se9.1 secs1.7 se12.3 secs0.9 se 15.6secs2.6 -3.3 9.1
07/1918:00:004.9 3.5 se10.0 secs1.4 se14.4 secs1.6 se 6.7secs2.8 -3.5 10.0
07/1917:00:004.5 3.4 se9.0 secs1.8 se12.2 secs0.9 se 16.4secs2.4 -3.0 9.0
07/1916:00:004.7 3.3 se10.0 secs1.2 se14.2 secs0.7 se 18.0secs2.6 -3.3 10.0
07/1915:00:004.5 3.1 se10.0 secs1.2 se14.1 secs1.8 se 6.7secs2.5 -3.1 10.0
07/1914:00:004.6 3.7 se9.1 secs1.4 se12.2 secs0.6 se 16.5secs2.7 -3.3 9.1
07/1913:00:004.6 3.5 se9.1 secs1.6 se12.3 secs1.1 se 16.5secs2.5 -3.2 9.1
07/1912:00:003.9 2.4 se10.0 secs1.1 se14.3 secs0.8 se 17.9secs1.9 -2.4 10.0
07/1911:00:003.7 2.4 se9.1 secs1.5 se12.3 secs0.8 se 16.2secs1.8 -2.2 9.1
07/1910:00:003.7 2.4 se10.0 secs1.0 se14.4 secs0.6 se 17.6secs1.9 -2.4 10.0

 

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
16:00:00 (GMT) on 07/20
Combined Sea Height:6.2 ft
Dominant Period:10.0 secs
Wind Speed: 13.7 kts
Wind Gust: 17.6 kts
Wind Direction:180 degrees
Barometric Pressure:1014.3 mbs
Air Temperature: 58.5 degrees
Water Temperature:59.5 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)
07/2016:00:006.210.013.717.61801014.358.559.5
07/2015:00:006.910.013.717.61601014.058.359.5
07/2014:00:007.510.011.715.61701013.557.759.7
07/2013:00:006.910.011.715.61801013.257.059.9
07/2012:00:007.210.011.715.61701013.056.559.7
07/2010:00:007.210.07.89.81601013.055.960.1
07/2009:00:006.610.07.811.71701012.756.160.3
07/2008:00:006.910.07.89.81801012.956.360.4
07/2007:00:006.610.05.89.81701013.156.360.6
07/2006:00:007.210.07.89.81901013.256.860.4
07/2004:00:007.210.03.97.82001013.356.560.3
07/2003:00:006.69.05.87.82201012.956.760.4
07/2002:00:006.910.01.93.92401012.756.560.8
07/1923:00:006.29.05.87.82301013.557.761.5
07/1922:00:006.910.05.87.82601014.157.261.3
07/1921:00:006.610.07.89.82601014.557.061.5
07/1917:00:006.910.03.95.82301015.657.261.0
07/1916:00:006.68.03.95.82101015.457.060.8
07/1915:00:006.69.05.87.82001015.556.860.4
07/1914:00:006.210.03.95.82201015.156.760.4
07/1912:00:006.69.05.87.82101014.556.860.4
07/1911:00:005.69.07.811.71801014.656.560.4
07/1910:00:005.28.03.95.81801014.356.360.6
07/1908:00:005.29.01.93.93001014.556.160.6

 

000154912 ___0.092154
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