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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)09/26
00:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
00:00:00 (GMT) on 09/26
Sea Height:4.6 ft
Primary Swell Height: 2.5 ft
Primary Swell Period: 14.8 secs
Surf Height2.9 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)
09/2600:00:004.6 2.5 se14.8 secs2.6 se11.0 secs2.3 se 7.8secs2.9 -3.7 14.8
09/2523:00:005.0 2.9 se14.6 secs3.0 se11.2 secs2.4 se 7.8secs3.4 -4.3 14.6
09/2522:00:004.6 2.5 se14.7 secs2.9 se11.1 secs2.2 se 7.7secs3.0 -3.7 14.7
09/2521:00:004.9 2.7 se16.1 secs2.8 se12.5 secs2.1 se 9.3secs3.5 -4.4 16.1
09/2520:00:005.7 2.9 se16.0 secs3.2 se12.4 secs3.0 se 9.1secs3.7 -4.6 16.0
09/2519:00:005.7 3.6 se12.3 secs2.6 se16.1 secs2.8 se 9.2secs3.5 -4.4 12.3
09/2518:00:005.5 3.5 se12.2 secs2.2 se16.2 secs2.8 se 9.1secs3.4 -4.3 12.2
09/2517:00:006.1 3.5 se14.8 secs3.6 se11.2 secs2.8 se 7.8secs4.2 -5.2 14.8
09/2516:00:006.0 3.8 se12.2 secs2.6 se16.2 secs2.8 se 9.1secs3.7 -4.7 12.2
09/2515:00:006.2 2.6 se16.4 secs4.3 se10.0 secs2.1 se 6.7secs3.5 -4.3 16.4
09/2514:00:006.7 4.8 se11.1 secs2.7 se14.4 secs1.7 se 17.6secs4.3 -5.4 11.1
09/2513:00:006.2 3.1 se16.5 secs3.6 se12.4 secs3.5 se 9.1secs4.0 -5.1 16.5
09/2512:00:006.9 4.0 se14.7 secs4.7 se11.2 secs2.9 se 7.8secs4.7 -5.8 14.7
09/2511:00:006.7 4.1 se12.2 secs2.8 se16.5 secs3.5 se 9.2secs4.0 -5.0 12.2
09/2510:00:006.5 3.4 se14.6 secs4.3 se11.2 secs2.5 se 17.7secs3.9 -4.9 14.6
09/2509:00:006.8 4.6 se12.1 secs2.9 se16.2 secs3.0 se 8.4secs4.4 -5.6 12.1
09/2508:00:006.0 3.3 se16.7 secs3.4 se12.4 secs2.8 se 9.2secs4.4 -5.6 16.7
09/2507:00:006.3 3.8 se14.6 secs4.2 se11.3 secs0.9 se 20.0secs4.5 -5.6 14.6
09/2506:00:007.8 4.7 se14.6 secs5.7 se11.3 secs1.1 se 20.0secs5.5 -6.8 14.6
09/2505:00:006.3 3.8 se14.7 secs4.4 se11.4 secs1.1 se 20.0secs4.5 -5.6 14.7
09/2504:00:007.1 4.8 se14.3 secs2.9 se17.7 secs4.2 se 10.3secs5.5 -6.9 14.3
09/2503:00:006.7 4.1 se14.5 secs5.0 se11.3 secs2.9 se 17.6secs4.8 -6.0 14.5
09/2502:00:006.3 3.4 se17.0 secs3.9 se12.3 secs1.6 se 20.0secs4.6 -5.7 17.0
09/2501:00:006.3 4.0 se14.4 secs4.5 se11.4 secs2.7 se 17.6secs4.7 -5.8 14.4

 

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
00:00:00 (GMT) on 09/26
Combined Sea Height:6.2 ft
Dominant Period:10.0 secs
Wind Speed: 3.9 kts
Wind Gust: 3.9 kts
Wind Direction:340 degrees
Barometric Pressure:1015.0 mbs
Air Temperature: 61.7 degrees
Water Temperature:59.0 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)
09/2600:00:006.210.03.93.93401015.061.759.0
09/2523:00:005.910.05.85.83501015.361.759.4
09/2522:00:006.211.05.85.83101015.662.159.7
09/2521:00:005.911.05.85.82901016.061.359.5
09/2520:00:006.216.05.87.82801016.661.359.4
09/2519:00:007.211.05.87.82501017.160.657.9
09/2518:00:007.211.01.93.92201017.160.857.6
09/2517:00:006.911.03.95.83301017.259.257.4
09/2516:00:007.516.03.95.83001017.058.557.4
09/2515:00:007.511.05.87.83301016.657.957.4
09/2514:00:008.29.05.85.83101016.457.456.8
09/2513:00:008.511.03.95.83101016.056.857.2
09/2512:00:007.99.03.95.83501015.956.857.6
09/2511:00:008.511.05.87.83201015.956.857.9
09/2510:00:008.511.05.87.83401016.256.857.4
09/2509:00:008.211.05.87.83301017.057.057.4
09/2508:00:008.511.07.89.83201017.357.257.6
09/2507:00:007.510.05.87.83101017.657.257.6
09/2506:00:007.911.07.89.83201017.957.457.6
09/2505:00:009.211.09.811.73201017.957.257.6
09/2504:00:007.511.011.713.73201017.757.257.4
09/2503:00:008.212.013.715.63201017.757.257.4
09/2502:00:008.211.011.717.63201017.557.457.4
09/2501:00:007.910.013.717.63201017.557.757.2

 

000128918 ___0.448157
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