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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)02/27
12:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
12:00:00 (GMT) on 02/27
Sea Height:7.4 ft
Primary Swell Height: 5.3 ft
Primary Swell Period: 8.3 secs
Surf Height3.6 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)
02/2712:00:007.4 5.3 se8.3 secs2.5 se12.5 secs0.9 se 16.7secs3.6 -4.4 8.3
02/2711:00:006.7 4.8 se8.3 secs2.2 se12.4 secs0.9 se 16.7secs3.2 -4.0 8.3
02/2710:00:008.6 6.8 se8.4 secs2.2 se12.4 secs0.8 se 16.7secs4.6 -5.7 8.4
02/2709:00:008.1 6.1 se8.4 secs2.3 se12.2 secs1.2 se 15.5secs4.1 -5.1 8.4
02/2708:00:008.0 5.8 se9.0 secs2.1 se12.2 secs1.3 se 15.5secs4.2 -5.2 9.0
02/2707:00:008.4 6.3 se9.0 secs1.2 se14.0 secs2.8 se 5.9secs4.5 -5.7 9.0
02/2706:00:008.3 6.0 se9.1 secs2.8 se12.3 secs2.7 se 5.9secs4.4 -5.5 9.1
02/2705:00:008.8 6.0 se9.9 secs4.1 se6.7 secs1.8 se 14.0secs4.7 -5.9 9.9
02/2704:00:009.1 6.3 se10.1 secs3.9 se6.7 secs1.8 se 14.1secs5.0 -6.3 10.1
02/2703:00:008.6 6.4 se9.9 secs1.7 se14.1 secs3.4 se 6.8secs5.0 -6.3 9.9
02/2702:00:009.6 7.3 se10.0 secs2.1 se13.5 secs3.5 se 6.7secs5.8 -7.3 10.0
02/2701:00:009.5 6.8 se10.1 secs3.6 se6.8 secs1.7 se 14.1secs5.5 -6.9 10.1
02/2700:00:009.6 6.9 se10.0 secs3.3 se6.7 secs1.5 se 13.8secs5.6 -7.0 10.0
02/2623:00:008.5 5.8 se10.0 secs1.7 se13.6 secs3.3 se 6.7secs4.7 -5.9 10.0
02/2622:00:008.8 6.9 se10.1 secs2.8 se14.2 secs1.4 se 17.4secs5.6 -7.0 10.1
02/2621:00:008.5 5.9 se10.0 secs2.9 se14.2 secs2.9 se 6.7secs4.7 -5.9 10.0
02/2620:00:007.8 5.6 se10.0 secs1.7 se13.5 secs3.0 se 6.8secs4.4 -5.6 10.0
02/2619:00:007.3 5.2 se10.1 secs1.8 se13.4 secs2.9 se 6.7secs4.2 -5.3 10.1
02/2618:00:008.1 6.0 se10.0 secs1.5 se13.3 secs2.9 se 6.7secs4.8 -6.0 10.0
02/2617:00:007.2 4.9 se10.0 secs1.9 se13.6 secs3.3 se 6.7secs3.9 -4.9 10.0
02/2616:00:008.1 5.4 se10.9 secs4.1 se7.8 secs1.2 se 16.7secs4.8 -6.0 10.9
02/2615:00:008.1 6.6 se10.1 secs1.5 se13.1 secs2.8 se 6.7secs5.3 -6.6 10.1
02/2614:00:008.3 5.8 se10.1 secs2.3 se14.1 secs3.4 se 6.7secs4.7 -5.8 10.1
02/2613:00:008.0 5.3 se10.9 secs4.0 se7.7 secs1.0 se 15.0secs4.7 -5.8 10.9

 

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
11:00:00 (GMT) on 02/27
Combined Sea Height:10.8 ft
Dominant Period:8.0 secs
Wind Speed: 25.4 kts
Wind Gust: 29.2 kts
Wind Direction:320 degrees
Barometric Pressure:1012.2 mbs
Air Temperature: 56.3 degrees
Water Temperature:57.7 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)
02/2711:00:0010.88.025.429.23201012.256.357.7
02/2710:00:009.88.023.429.23201012.556.357.7
02/2709:00:0012.88.025.431.23201012.956.357.7
02/2708:00:0011.89.027.335.13201013.356.357.7
02/2707:00:0011.88.027.333.13201013.256.157.7
02/2706:00:0012.59.029.237.03201013.856.157.7
02/2705:00:0012.19.029.235.13201013.656.557.7
02/2704:00:0012.810.029.235.13201013.856.857.7
02/2703:00:0012.810.029.233.13101013.257.057.7
02/2702:00:0012.59.029.235.13201014.056.857.9
02/2701:00:0013.89.029.237.03301013.857.057.9
02/2700:00:0013.48.031.241.03201013.856.857.9
02/2623:00:0013.410.027.333.13301014.856.557.9
02/2622:00:0012.110.027.335.13301015.356.557.9
02/2621:00:0012.110.023.429.23301015.856.757.9
02/2620:00:0011.89.023.429.23301016.356.757.9
02/2619:00:0011.210.023.429.23301017.457.057.9
02/2618:00:0010.510.023.429.23301018.257.057.9
02/2617:00:0011.59.019.525.43301018.457.057.7
02/2616:00:0010.59.017.623.43401018.157.257.7
02/2615:00:0011.510.017.623.43301018.056.857.7
02/2614:00:0011.510.021.425.43301017.156.857.7
02/2613:00:0011.810.021.427.33401017.157.057.7
02/2612:00:0011.510.023.429.23401017.257.057.7

 

000104576 ___0.275786
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