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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)02/19
22:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
22:00:00 (GMT) on 02/19
Sea Height:7.3 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)
02/1922:00:007.3 4.8 se12.4 secs4.0 se6.6 secs0.9 se 16.7secs4.8 -5.9 12.4
02/1921:00:007.1 5.1 se12.4 secs2.8 se9.3 secs3.1 se 5.9secs5.0 -6.3 12.4
02/1920:00:006.9 5.5 se12.8 secs2.4 se9.1 secs1.0 se 17.4secs5.6 -7.0 12.8
02/1919:00:007.0 5.8 se12.5 secs2.6 se9.2 secs0.8 se 16.7secs5.8 -7.2 12.5
02/1918:00:005.7 4.4 se12.5 secs2.7 se9.2 secs1.0 se 16.7secs4.4 -5.5 12.5
02/1917:00:006.6 5.4 se12.3 secs2.9 se9.2 secs0.6 se 16.7secs5.3 -6.6 12.3
02/1916:00:007.1 5.8 se12.3 secs3.4 se9.2 secs1.3 se 6.0secs5.7 -7.1 12.3
02/1915:00:006.6 5.0 se12.4 secs3.6 se9.3 secs0.6 se 16.7secs5.0 -6.2 12.4
02/1914:00:007.2 5.9 se12.4 secs3.4 se9.2 secs0.7 se 16.7secs5.9 -7.4 12.4
02/1913:00:007.3 5.8 se12.4 secs4.0 se9.3 secs1.2 se 6.3secs5.7 -7.1 12.4
02/1912:00:007.8 6.4 se12.3 secs3.6 se9.3 secs0.9 se 16.7secs6.3 -7.9 12.3
02/1911:00:007.9 6.4 se12.4 secs3.4 se9.3 secs0.8 se 16.7secs6.4 -8.0 12.4
02/1910:00:007.9 6.7 se12.5 secs3.3 se9.2 secs1.0 se 16.7secs6.7 -8.4 12.5
02/1909:00:008.0 6.3 se12.6 secs3.9 se9.2 secs1.2 se 16.7secs6.3 -7.9 12.6
02/1908:00:009.5 8.2 se12.4 secs3.8 se9.3 secs1.2 se 16.7secs8.2 -10.2 12.4
02/1907:00:008.7 7.2 se12.5 secs3.3 se9.2 secs1.0 se 16.7secs7.2 -9.0 12.5
02/1906:00:009.5 7.6 se12.6 secs4.2 se9.2 secs1.3 se 16.7secs7.7 -9.6 12.6
02/1905:00:009.2 7.3 se12.4 secs3.6 se15.4 secs4.2 se 9.2secs7.3 -9.1 12.4
02/1904:00:0011.2 9.6 se12.6 secs4.0 se9.2 secs1.7 se 17.9secs9.7 -12.1 12.6
02/1903:00:009.7 7.8 se12.4 secs3.3 se15.4 secs4.1 se 9.2secs7.7 -9.6 12.4
02/1902:00:0010.5 8.4 se12.5 secs4.9 se9.3 secs2.0 se 17.3secs8.3 -10.4 12.5
02/1901:00:0011.2 9.2 se12.5 secs4.9 se9.3 secs1.7 se 16.7secs9.2 -11.4 12.5
02/1900:00:0011.0 9.2 se12.5 secs4.3 se9.2 secs2.2 se 17.2secs9.2 -11.4 12.5
02/1823:00:0011.8 9.5 se12.5 secs5.3 se9.2 secs1.8 se 16.7secs9.5 -11.9 12.5

 

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
22:00:00 (GMT) on 02/19
Combined Sea Height:11.8 ft
Dominant Period:7.0 secs
Wind Speed: 29.2 kts
Wind Gust: 33.1 kts
Wind Direction:150 degrees
Barometric Pressure:1007.8 mbs
Air Temperature: 52.9 degrees
Water Temperature:55.2 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)
02/1922:00:0011.87.029.233.11501007.852.955.2
02/1921:00:0010.26.029.235.11501007.752.755.2
02/1920:00:009.511.029.235.11501007.952.955.2
02/1919:00:008.914.025.433.11501008.754.055.2
02/1918:00:008.912.025.429.21501009.453.255.2
02/1917:00:007.911.023.427.31501009.453.455.2
02/1916:00:008.511.021.425.41401009.053.655.2
02/1915:00:008.912.021.427.31401008.853.855.2
02/1914:00:008.212.017.623.41401008.753.455.2
02/1913:00:008.511.015.619.51501008.753.255.2
02/1912:00:008.910.013.715.61601008.752.955.2
02/1911:00:009.211.011.713.71701008.852.955.2
02/1910:00:009.512.09.811.72001009.053.155.2
02/1909:00:009.511.09.811.72201009.452.755.2
02/1908:00:009.813.07.89.82401008.852.955.2
02/1907:00:0011.213.013.715.62601009.253.155.2
02/1906:00:0010.211.011.713.72601008.953.155.2
02/1905:00:0011.513.011.713.72901008.652.755.2
02/1904:00:0011.212.011.715.62901008.152.755.2
02/1903:00:0013.113.015.619.52901007.452.755.2
02/1902:00:0011.811.015.619.53001006.852.955.2
02/1901:00:0012.812.017.623.42901005.552.555.2
02/1900:00:0013.412.017.623.42901005.352.755.2
02/1823:00:0013.111.019.523.43001004.852.555.2

 

000143981 ___0.298419
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