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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)05/02
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 05/02
Sea Height:4.7 ft
Primary Swell Height: 3.8 ft
Primary Swell Period: 14.4 secs
Surf Height4.4 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)
05/0204:00:004.7 3.8 se14.4 secs2.1 se17.6 secs2.2 se 10.2secs4.4 -5.5 14.4
05/0203:00:005.1 3.7 se16.3 secs3.2 se12.8 secs1.9 se 9.2secs4.8 -6.0 16.3
05/0202:00:004.8 3.3 se16.4 secs2.9 se12.9 secs1.2 se 20.0secs4.3 -5.4 16.4
05/0201:00:005.0 3.2 se16.7 secs3.0 se12.7 secs1.3 se 20.0secs4.2 -5.3 16.7
05/0200:00:005.0 3.3 se14.3 secs3.3 se11.3 secs1.8 se 18.0secs3.8 -4.7 14.3
05/0123:00:005.5 3.6 se16.4 secs3.7 se12.9 secs1.5 se 20.0secs4.8 -6.0 16.4
05/0122:00:005.4 3.2 se16.5 secs3.4 se12.7 secs3.0 se 9.3secs4.3 -5.3 16.5
05/0121:00:005.3 3.0 se16.4 secs3.3 se12.8 secs2.9 se 9.2secs3.9 -4.9 16.4
05/0120:00:005.3 2.3 se16.4 secs3.5 se10.0 secs0.9 se 20.0secs3.0 -3.8 16.4
05/0119:00:005.6 3.0 se16.9 secs3.2 se12.3 secs1.5 se 20.0secs4.0 -5.0 16.9
05/0118:00:005.6 3.0 se17.0 secs3.0 se12.4 secs1.6 se 20.0secs4.1 -5.1 17.0
05/0117:00:005.2 3.1 se12.4 secs2.3 se16.5 secs2.9 se 9.3secs3.1 -3.9 12.4
05/0116:00:005.2 2.7 se16.9 secs3.2 se10.1 secs1.3 se 20.0secs3.7 -4.6 16.9
05/0115:00:005.6 2.5 se17.2 secs3.9 se10.2 secs2.2 se 7.2secs3.4 -4.2 17.2
05/0114:00:005.9 4.1 se11.0 secs2.1 se16.4 secs2.5 se 7.8secs3.6 -4.5 11.0
05/0113:00:005.6 2.6 se16.7 secs3.7 se11.0 secs1.1 se 20.0secs3.4 -4.3 16.7
05/0112:00:005.7 4.0 se10.1 secs1.9 se17.1 secs1.8 se 6.7secs3.2 -4.0 10.1
05/0111:00:006.3 4.3 se11.0 secs2.3 se17.2 secs2.8 se 7.8secs3.8 -4.7 11.0
05/0110:00:006.3 4.6 se11.0 secs1.9 se17.5 secs2.0 se 14.1secs4.0 -5.0 11.0
05/0109:00:007.2 5.4 se10.9 secs2.1 se17.5 secs2.3 se 14.2secs4.7 -5.9 10.9
05/0108:00:006.5 4.6 se11.2 secs1.9 se17.6 secs2.8 se 7.7secs4.1 -5.2 11.2
05/0107:00:007.3 5.5 se11.1 secs2.0 se17.8 secs2.8 se 7.8secs4.8 -6.0 11.1
05/0106:00:006.8 4.9 se11.1 secs1.6 se16.6 secs2.8 se 7.8secs4.3 -5.4 11.1
05/0105:00:007.4 5.4 se11.0 secs2.4 se14.2 secs1.7 se 18.4secs4.7 -5.9 11.0

 

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 05/02
Combined Sea Height:5.6 ft
Dominant Period:14.0 secs
Wind Speed: 7.8 kts
Wind Gust: 9.8 kts
Wind Direction:190 degrees
Barometric Pressure:1014.3 mbs
Air Temperature: 32.0 degrees
Water Temperature:51.3 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)
05/0204:00:005.614.07.89.81901014.332.051.3
05/0203:00:005.614.07.89.81901013.832.052.0
05/0202:00:005.917.07.89.81901012.632.051.6
05/0201:00:005.914.05.87.81601012.332.052.7
05/0200:00:005.917.05.87.81501012.032.053.4
05/0123:00:006.210.05.87.81601012.132.053.1
05/0122:00:006.614.07.89.81601012.232.053.6
05/0121:00:006.910.03.95.81901012.232.054.5
05/0120:00:006.910.01.93.92201011.932.052.7
05/0119:00:007.29.03.93.92401011.532.051.8
05/0118:00:007.211.03.93.92501011.732.051.1
05/0117:00:007.29.05.85.82501011.432.050.9
05/0116:00:006.910.03.95.81401011.132.050.2
05/0115:00:006.910.01.93.90701010.932.050.2
05/0114:00:007.211.05.87.83401010.632.050.2
05/0113:00:007.910.03.97.83501010.232.050.2
05/0112:00:007.510.09.811.73601010.032.050.2
05/0111:00:007.99.011.713.73201009.632.050.2
05/0110:00:008.210.013.717.63201009.932.050.2
05/0109:00:008.211.013.717.63201009.932.050.2
05/0108:00:009.510.013.715.63301010.332.050.2
05/0107:00:008.511.013.715.63301011.032.050.2
05/0106:00:009.510.013.715.63101010.932.050.2
05/0105:00:009.210.015.619.53201011.132.050.2

 

000117536 ___0.227026
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