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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)09/17
04:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
04:00:00 (GMT) on 09/17
Sea Height:3.0 ft
Primary Swell Height: 2.6 ft
Primary Swell Period: 17.5 secs
Surf Height3.7 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)
09/1704:00:003.0 2.6 se17.5 secs1.6 se12.8 secs0.7 se 9.2secs3.7 -4.6 17.5
09/1703:00:003.1 2.8 se17.7 secs1.5 se12.8 secs0.6 se 9.2secs3.9 -4.9 17.7
09/1702:00:003.5 3.2 se17.7 secs1.6 se12.9 secs0.7 se 9.2secs4.6 -5.7 17.7
09/1701:00:002.9 2.6 se17.5 secs1.9 se20.6 secs1.6 se 13.0secs3.6 -4.5 17.5
09/1700:00:003.2 3.1 se17.6 secs1.5 se13.1 secs0.6 se 9.3secs4.3 -5.4 17.6
09/1623:00:003.5 3.2 se17.6 secs1.7 se13.1 secs0.7 se 9.4secs4.6 -5.7 17.6
09/1622:00:002.7 2.4 se17.5 secs1.4 se13.0 secs0.6 se 9.3secs3.4 -4.3 17.5
09/1621:00:002.9 2.3 se19.4 secs1.9 se14.7 secs1.1 se 11.4secs3.6 -4.5 19.4
09/1620:00:003.3 2.9 se19.1 secs1.8 se14.9 secs1.0 se 11.4secs4.5 -5.6 19.1
09/1619:00:002.8 2.6 se17.8 secs1.1 se12.9 secs0.7 se 9.2secs3.7 -4.6 17.8
09/1618:00:003.1 2.6 se19.1 secs2.0 se15.0 secs1.3 se 11.4secs4.0 -5.0 19.1
09/1617:00:002.6 2.0 se19.7 secs1.6 se14.6 secs1.2 se 11.5secs3.2 -4.0 19.7
09/1616:00:003.2 2.8 se19.4 secs1.9 se15.0 secs0.5 se 25.0secs4.3 -5.4 19.4
09/1615:00:002.4 1.8 se19.9 secs1.3 se14.1 secs0.4 se 25.0secs2.9 -3.6 19.9
09/1614:00:002.8 2.4 se20.1 secs1.5 se14.9 secs0.9 se 25.0secs3.9 -4.9 20.1
09/1613:00:002.9 2.5 se19.7 secs1.6 se14.9 secs0.6 se 25.0secs3.9 -4.8 19.7
09/1612:00:002.9 2.4 se19.8 secs1.5 se14.9 secs0.6 se 25.0secs3.9 -4.9 19.8
09/1611:00:002.6 2.1 se20.3 secs1.5 se14.5 secs0.8 se 25.0secs3.4 -4.2 20.3
09/1610:00:003.1 2.7 se19.5 secs1.8 se15.0 secs0.5 se 25.0secs4.3 -5.3 19.5
09/1609:00:002.7 2.1 se19.9 secs1.6 se14.7 secs0.7 se 25.0secs3.4 -4.2 19.9
09/1608:00:002.8 2.2 se19.9 secs1.7 se14.8 secs0.8 se 25.0secs3.5 -4.4 19.9
09/1607:00:002.4 1.9 se20.2 secs0.8 se25.0 secs1.3 se 14.8secs3.1 -3.8 20.2
09/1606:00:002.5 1.7 se20.0 secs1.5 se14.6 secs0.6 se 25.0secs2.7 -3.4 20.0
09/1605:00:002.5 1.8 se20.3 secs0.8 se25.0 secs1.3 se 14.6secs3.0 -3.7 20.3

 

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
04:00:00 (GMT) on 09/17
Combined Sea Height:3.9 ft
Dominant Period:19.0 secs
Wind Speed: 7.8 kts
Wind Gust: 7.8 kts
Wind Direction:300 degrees
Barometric Pressure:1010.6 mbs
Air Temperature: 64.2 degrees
Water Temperature:64.4 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)
09/1704:00:003.919.07.87.83001010.664.264.4
09/1703:00:003.319.07.87.83001010.564.264.4
09/1702:00:003.619.07.89.82801010.364.464.6
09/1701:00:003.919.07.89.83001010.264.464.6
09/1700:00:003.319.09.89.83001010.164.464.8
09/1623:00:003.619.09.811.73101010.364.664.6
09/1622:00:003.619.011.713.73101010.964.464.6
09/1621:00:003.019.09.811.73201011.364.064.6
09/1620:00:003.319.09.811.73001012.363.764.4
09/1619:00:003.621.05.87.83201012.763.164.6
09/1618:00:003.319.05.87.83601012.863.164.4
09/1617:00:003.319.05.85.83401013.263.364.2
09/1616:00:003.021.03.95.83301013.263.363.1
09/1615:00:003.621.05.87.83101013.163.163.0
09/1614:00:002.621.01.93.93401013.263.363.1
09/1613:00:003.021.05.85.83301013.062.863.3
09/1612:00:003.321.05.87.83501012.962.863.9
09/1611:00:003.321.03.93.93201012.862.663.9
09/1610:00:003.021.01.91.90601013.062.663.3
09/1609:00:003.319.01.93.90801013.363.063.1
09/1608:00:003.021.03.93.91001013.563.063.1
09/1607:00:003.021.00.00.00001013.763.563.7
09/1606:00:002.621.01.91.92501013.864.064.2
09/1605:00:003.019.00.01.90001013.763.964.4

 

000100128 ___0.37116
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