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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)03/30
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 03/30
Sea Height:8.7 ft
Primary Swell Height: 6.1 ft
Primary Swell Period: 14.2 secs
Surf Height6.9 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)
03/3011:00:008.7 6.1 se14.2 secs3.1 se17.4 secs4.5 se 10.3secs6.9 -8.6 14.2
03/3010:00:008.0 5.0 se14.4 secs3.1 se17.7 secs4.2 se 10.2secs5.8 -7.2 14.4
03/3009:00:008.1 4.4 se16.8 secs4.9 se12.5 secs1.9 se 20.0secs6.0 -7.5 16.8
03/3008:00:008.5 5.2 se14.4 secs3.7 se18.1 secs4.5 se 10.2secs5.9 -7.4 14.4
03/3007:00:007.9 4.4 se14.4 secs4.8 se11.3 secs2.9 se 17.6secs5.1 -6.4 14.4
03/3006:00:008.9 5.2 se14.2 secs3.4 se18.1 secs5.1 se 10.2secs5.9 -7.4 14.2
03/3005:00:008.3 4.6 se16.9 secs4.6 se12.4 secs4.2 se 9.1secs6.2 -7.8 16.9
03/3004:00:007.5 4.0 se16.7 secs4.6 se12.5 secs4.1 se 9.1secs5.4 -6.7 16.7
03/3003:00:007.2 3.7 se16.9 secs4.4 se12.3 secs1.7 se 20.0secs5.0 -6.2 16.9
03/3002:00:006.7 3.6 se16.8 secs3.7 se12.4 secs3.5 se 9.1secs4.8 -6.0 16.8
03/3001:00:006.3 3.5 se16.9 secs3.2 se12.4 secs1.5 se 20.0secs4.8 -5.9 16.9
03/3000:00:006.8 3.9 se17.1 secs3.4 se12.4 secs3.4 se 9.2secs5.4 -6.7 17.1
03/2923:00:006.5 3.1 se16.8 secs3.7 se12.4 secs3.2 se 9.2secs4.2 -5.2 16.8
03/2922:00:006.2 3.4 se16.9 secs2.7 se12.6 secs3.7 se 9.0secs4.6 -5.8 16.9
03/2921:00:006.9 3.3 se16.4 secs3.5 se12.4 secs4.1 se 9.1secs4.4 -5.5 16.4
03/2920:00:007.6 4.1 se16.6 secs3.8 se12.5 secs4.5 se 9.0secs5.4 -6.7 16.6
03/2919:00:007.5 3.9 se16.9 secs3.9 se12.4 secs4.0 se 9.0secs5.3 -6.6 16.9
03/2918:00:007.0 3.4 se17.0 secs3.7 se12.2 secs3.9 se 9.1secs4.7 -5.8 17.0
03/2917:00:007.2 4.8 se11.2 secs3.6 se14.6 secs2.8 se 17.7secs4.3 -5.3 11.2
03/2916:00:007.6 5.2 se10.0 secs3.2 se14.4 secs2.1 se 17.7secs4.2 -5.2 10.0
03/2915:00:007.8 3.3 se17.1 secs4.9 se10.0 secs2.7 se 6.8secs4.5 -5.6 17.1
03/2914:00:008.4 4.2 se14.7 secs3.3 se17.7 secs4.9 se 11.2secs4.9 -6.1 14.7
03/2913:00:007.6 5.4 se11.2 secs2.5 se16.7 secs3.0 se 7.8secs4.8 -6.1 11.2
03/2912:00:007.4 4.2 se12.3 secs2.6 se16.5 secs4.6 se 9.1secs4.2 -5.2 12.3

 

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
11:00:00 (GMT) on 03/30
Combined Sea Height:10.2 ft
Dominant Period:13.0 secs
Wind Speed: 15.6 kts
Wind Gust: 19.5 kts
Wind Direction:330 degrees
Barometric Pressure:1016.3 mbs
Air Temperature: 55.0 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)
03/3011:00:0010.213.015.619.53301016.355.055.2
03/3010:00:0010.512.015.619.53301016.455.255.2
03/3009:00:009.88.015.617.63301016.655.655.2
03/3008:00:009.817.011.715.63201016.955.855.2
03/3007:00:0010.58.07.89.83301017.455.855.2
03/3006:00:0010.28.09.811.73301017.555.855.2
03/3005:00:0011.212.07.811.73201017.655.855.2
03/3004:00:0010.28.011.713.73101017.555.954.9
03/3003:00:009.28.011.715.63201017.256.354.9
03/3002:00:008.911.011.713.73201017.055.954.9
03/3001:00:008.59.015.617.63201016.955.954.9
03/3000:00:008.28.013.717.63201017.156.154.9
03/2923:00:008.917.015.619.53201017.255.854.9
03/2922:00:008.511.015.619.53201017.655.454.9
03/2921:00:008.58.017.619.53201018.155.454.9
03/2920:00:009.29.017.621.43301018.555.254.9
03/2919:00:0010.28.017.621.43301019.055.454.9
03/2918:00:009.88.015.619.53301019.555.054.7
03/2917:00:009.28.013.717.63301019.754.954.7
03/2916:00:009.59.013.717.63301019.855.054.5
03/2915:00:0010.29.015.619.53301019.654.954.5
03/2914:00:0010.59.017.619.53201019.554.754.5
03/2913:00:0010.88.015.619.53301019.354.554.5
03/2912:00:009.811.015.619.53301019.154.554.5

 

000105017 ___0.258209
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