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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)10/21
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 10/21
Sea Height:6.9 ft
Primary Swell Height: 5.5 ft
Primary Swell Period: 10.0 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)
10/2112:00:006.9 5.5 se10.0 secs1.9 se14.2 secs2.4 se 6.8secs4.4 -5.5 10.0
10/2111:00:006.7 5.2 se10.0 secs1.8 se14.0 secs0.9 se 18.3secs4.1 -5.2 10.0
10/2110:00:006.9 5.5 se10.0 secs1.8 se14.0 secs2.3 se 6.7secs4.4 -5.5 10.0
10/2109:00:006.4 5.0 se9.9 secs1.4 se14.0 secs2.2 se 6.7secs3.9 -4.9 9.9
10/2108:00:006.6 4.9 se9.9 secs2.0 se14.1 secs2.4 se 6.8secs3.9 -4.8 9.9
10/2107:00:006.1 4.9 se10.0 secs1.7 se14.0 secs0.8 se 18.3secs3.9 -4.9 10.0
10/2106:00:005.8 4.4 se10.0 secs1.7 se16.3 secs1.7 se 6.7secs3.5 -4.4 10.0
10/2105:00:005.6 3.8 se9.9 secs1.7 se14.0 secs2.1 se 6.8secs3.0 -3.8 9.9
10/2104:00:005.5 3.8 se10.0 secs2.0 se14.1 secs0.9 se 18.0secs3.0 -3.8 10.0
10/2103:00:004.8 3.0 se10.0 secs1.6 se14.0 secs1.8 se 6.7secs2.4 -3.0 10.0
10/2102:00:005.3 4.0 se9.2 secs2.1 se12.5 secs0.5 se 16.7secs2.9 -3.6 9.2
10/2101:00:005.3 4.0 se9.9 secs1.3 se14.1 secs2.1 se 6.7secs3.2 -3.9 9.9
10/2100:00:005.3 4.1 se9.2 secs1.7 se12.4 secs1.6 se 5.9secs3.0 -3.8 9.2
10/2023:00:005.1 3.6 se9.8 secs1.4 se16.4 secs2.1 se 6.7secs2.8 -3.5 9.8
10/2022:00:005.6 4.3 se9.1 secs1.6 se16.4 secs1.9 se 12.7secs3.1 -3.9 9.1
10/2021:00:005.5 4.1 se9.1 secs2.1 se12.3 secs1.3 se 15.4secs3.0 -3.7 9.1
10/2020:00:005.3 4.1 se10.1 secs1.3 se14.5 secs2.1 se 6.8secs3.3 -4.1 10.1
10/2019:00:005.8 4.0 se10.0 secs2.0 se14.5 secs2.1 se 6.7secs3.2 -4.0 10.0
10/2018:00:005.4 3.8 se10.0 secs1.4 se14.1 secs2.1 se 6.8secs3.1 -3.8 10.0
10/2017:00:005.3 3.6 se9.9 secs1.5 se14.5 secs2.0 se 6.7secs2.9 -3.6 9.9
10/2016:00:005.4 3.8 se9.9 secs1.6 se14.6 secs1.9 se 6.7secs3.0 -3.8 9.9
10/2015:00:006.5 5.1 se9.9 secs2.3 se6.8 secs1.0 se 14.5secs4.0 -5.0 9.9
10/2014:00:006.3 4.2 se10.0 secs1.7 se14.6 secs2.8 se 6.8secs3.4 -4.2 10.0
10/2013:00:006.6 4.9 se9.9 secs1.6 se14.7 secs2.5 se 6.7secs3.9 -4.8 9.9

 

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
13:00:00 (GMT) on 10/21
Combined Sea Height:0.0 ft
Dominant Period:0.0 secs
Wind Speed: 11.7 kts
Wind Gust: 15.6 kts
Wind Direction:340 degrees
Barometric Pressure:1010.7 mbs
Air Temperature: 57.2 degrees
Water Temperature:32.0 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)
10/2113:00:000.00.011.715.63401010.757.232.0
10/2112:00:000.00.011.715.63301010.357.232.0
10/2111:00:000.00.011.715.63201010.257.232.0
10/2110:00:000.00.09.813.73301010.657.432.0
10/2109:00:000.00.09.813.73401010.857.632.0
10/2108:00:000.00.09.813.73401010.857.732.0
10/2107:00:000.00.011.713.73301011.158.132.0
10/2106:00:000.00.07.811.73101011.558.532.0
10/2105:00:000.00.03.95.82901011.658.332.0
10/2104:00:000.00.03.95.83101011.658.332.0
10/2103:00:000.00.05.87.83101011.558.532.0
10/2102:00:000.00.05.89.83301011.258.132.0
10/2101:00:000.00.07.89.83401011.157.732.0
10/2100:00:000.00.07.89.83301011.355.432.0
10/2023:00:000.00.05.89.83401011.653.232.0
10/2022:00:000.00.03.97.83501012.153.232.0
10/2021:00:000.00.05.89.83601012.553.432.0
10/2020:00:000.00.07.89.83401013.154.032.0
10/2019:00:000.00.03.97.83301013.453.832.0
10/2018:00:000.00.03.97.83101013.753.232.0
10/2017:00:000.00.01.95.83201014.153.232.0
10/2016:00:000.00.05.87.83601014.453.832.0
10/2015:00:000.00.07.811.70101013.754.532.0
10/2014:00:000.00.09.811.73301013.555.432.0

 

000165597 ___0.016507
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