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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)05/20
11:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
11:00:00 (GMT) on 05/20
Sea Height:4.6 ft
Primary Swell Height: 2.1 ft
Primary Swell Period: 14.6 secs
Surf Height2.4 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)
05/2011:00:004.6 2.1 se14.6 secs3.1 se7.2 secs1.4 se 11.5secs2.4 -3.0 14.6
05/2010:00:004.6 2.0 se14.6 secs3.3 se7.2 secs1.2 se 11.6secs2.3 -2.9 14.6
05/2009:00:004.7 1.8 se14.5 secs3.3 se7.2 secs0.9 se 10.2secs2.0 -2.5 14.5
05/2008:00:004.3 1.9 se14.6 secs2.8 se7.6 secs0.0 se 0.0secs2.2 -2.8 14.6
05/2007:00:004.3 3.1 se7.2 secs1.5 se14.6 secs1.0 se 11.5secs1.8 -2.2 7.2
05/2006:00:004.3 1.6 se14.7 secs3.1 se7.2 secs1.0 se 11.6secs1.9 -2.3 14.7
05/2005:00:004.4 1.9 se14.8 secs3.1 se7.2 secs1.0 se 11.6secs2.2 -2.7 14.8
05/2004:00:004.0 1.7 se14.5 secs3.0 se7.1 secs0.7 se 10.1secs2.0 -2.5 14.5
05/2003:00:003.4 1.3 se16.0 secs2.3 se7.2 secs1.2 se 12.9secs1.6 -2.0 16.0
05/2002:00:003.4 1.7 se14.8 secs2.0 se7.6 secs0.9 se 11.6secs2.0 -2.6 14.8
05/2001:00:003.3 1.4 se14.8 secs2.3 se7.2 secs0.8 se 11.6secs1.6 -2.0 14.8
05/2000:00:003.4 1.7 se14.5 secs1.0 se17.5 secs2.0 se 7.7secs2.0 -2.5 14.5
05/1923:00:003.3 1.5 se14.9 secs2.2 se7.1 secs0.8 se 11.7secs1.8 -2.2 14.9
05/1922:00:003.6 1.6 se14.7 secs2.3 se6.7 secs0.9 se 11.7secs1.9 -2.3 14.7
05/1921:00:003.8 1.5 se16.2 secs2.4 se7.6 secs1.2 se 13.1secs2.0 -2.5 16.2
05/1920:00:004.0 1.4 se16.2 secs2.5 se7.7 secs1.2 se 13.0secs1.8 -2.3 16.2
05/1919:00:004.4 2.0 se16.1 secs2.8 se7.1 secs0.8 se 11.6secs2.6 -3.2 16.1
05/1918:00:004.2 1.7 se16.2 secs2.8 se7.1 secs1.4 se 13.0secs2.2 -2.7 16.2
05/1917:00:003.8 1.7 se16.3 secs2.2 se7.7 secs1.3 se 13.0secs2.3 -2.8 16.3
05/1916:00:004.0 1.7 se16.4 secs2.5 se7.6 secs1.3 se 13.1secs2.3 -2.8 16.4
05/1915:00:003.9 1.9 se15.0 secs2.2 se7.2 secs1.0 se 11.4secs2.3 -2.9 15.0
05/1914:00:003.8 1.7 se14.8 secs2.6 se7.2 secs0.9 se 11.5secs2.0 -2.5 14.8
05/1913:00:003.5 1.7 se16.0 secs2.1 se7.6 secs0.9 se 11.6secs2.1 -2.7 16.0
05/1912:00:003.7 1.7 se16.3 secs2.4 se7.2 secs1.3 se 13.1secs2.2 -2.7 16.3

 

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
10:00:00 (GMT) on 05/20
Combined Sea Height:6.9 ft
Dominant Period:8.0 secs
Wind Speed: 15.6 kts
Wind Gust: 21.4 kts
Wind Direction:310 degrees
Barometric Pressure:1015.0 mbs
Air Temperature: 53.6 degrees
Water Temperature:53.4 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)
05/2010:00:006.98.015.621.43101015.053.653.4
05/2009:00:006.98.015.619.53101015.153.453.4
05/2008:00:007.28.019.523.43001015.153.452.9
05/2007:00:006.68.017.621.43101015.553.652.9
05/2006:00:006.68.017.621.43101015.653.852.9
05/2005:00:006.67.019.523.43101015.753.853.1
05/2004:00:006.97.017.621.43101015.753.853.2
05/2003:00:006.27.017.623.43101015.254.053.2
05/2002:00:005.67.017.621.43101015.254.053.6
05/2001:00:005.27.015.619.53101014.954.053.4
05/2000:00:004.97.013.719.53001015.354.053.2
05/1923:00:004.97.013.715.63001015.453.853.6
05/1922:00:004.97.011.715.63001015.754.054.1
05/1921:00:005.67.011.715.63001016.154.154.3
05/1920:00:005.98.013.715.63001016.454.054.5
05/1919:00:006.28.013.717.63001016.553.854.5
05/1918:00:006.27.011.711.73001016.953.654.3
05/1917:00:006.27.011.715.63001016.653.453.2
05/1916:00:005.97.013.717.63101016.553.453.2
05/1915:00:006.27.013.717.63101016.053.253.1
05/1914:00:005.98.013.715.63101015.753.452.9
05/1913:00:005.98.015.619.53101015.353.453.1
05/1912:00:005.27.017.619.53301015.053.453.2
05/1911:00:005.67.015.619.53201015.053.153.2

 

000153962 ___0.101743
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