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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)12/04
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 12/04
Sea Height:7.2 ft
Primary Swell Height: 6.3 ft
Primary Swell Period: 12.5 secs
Surf Height6.3 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)
12/0404:00:007.2 6.3 se12.5 secs3.2 se15.6 secs2.6 se 9.2secs6.3 -7.9 12.5
12/0403:00:006.4 5.6 se12.6 secs2.4 se9.2 secs1.2 se 16.7secs5.6 -7.0 12.6
12/0402:00:007.0 6.3 se12.4 secs2.6 se9.3 secs1.0 se 16.7secs6.3 -7.9 12.4
12/0401:00:005.8 5.2 se12.6 secs1.9 se9.1 secs1.0 se 16.7secs5.2 -6.5 12.6
12/0400:00:005.9 4.9 se12.6 secs2.7 se15.6 secs2.6 se 9.3secs4.9 -6.2 12.6
12/0323:00:006.2 5.6 se12.5 secs2.0 se9.4 secs0.7 se 16.7secs5.6 -6.9 12.5
12/0322:00:006.7 6.1 se12.7 secs2.3 se9.2 secs0.7 se 16.7secs6.2 -7.7 12.7
12/0321:00:005.9 4.9 se12.7 secs2.5 se9.2 secs0.8 se 16.7secs5.0 -6.2 12.7
12/0320:00:005.9 4.9 se12.8 secs2.6 se9.2 secs0.9 se 16.7secs5.1 -6.3 12.8
12/0319:00:005.6 4.9 se12.8 secs2.2 se8.3 secs0.7 se 16.7secs5.0 -6.2 12.8
12/0318:00:006.1 5.2 se12.8 secs2.2 se9.1 secs0.9 se 16.7secs5.4 -6.7 12.8
12/0317:00:007.5 5.9 se14.0 secs4.0 se10.2 secs1.3 se 6.8secs6.6 -8.3 14.0
12/0316:00:007.2 5.9 se14.0 secs3.4 se10.3 secs1.6 se 17.5secs6.6 -8.3 14.0
12/0315:00:006.2 4.9 se12.7 secs2.7 se9.1 secs1.3 se 17.2secs5.0 -6.3 12.7
12/0314:00:006.0 4.6 se12.6 secs1.7 se16.7 secs2.6 se 9.2secs4.6 -5.8 12.6
12/0313:00:007.2 5.5 se14.1 secs3.7 se10.3 secs2.0 se 7.2secs6.2 -7.8 14.1
12/0312:00:007.8 6.4 se14.0 secs3.6 se10.3 secs1.4 se 6.8secs7.2 -9.0 14.0
12/0311:00:006.9 5.7 se12.8 secs2.9 se9.1 secs1.3 se 16.7secs5.9 -7.3 12.8
12/0310:00:007.5 6.1 se14.1 secs3.5 se10.3 secs1.8 se 7.3secs6.8 -8.5 14.1
12/0309:00:007.3 5.8 se14.1 secs3.7 se10.4 secs1.7 se 7.2secs6.5 -8.1 14.1
12/0308:00:007.1 6.0 se12.7 secs1.8 se16.7 secs2.9 se 9.2secs6.1 -7.7 12.7
12/0307:00:007.5 6.2 se14.0 secs3.3 se10.3 secs1.6 se 7.2secs6.9 -8.7 14.0
12/0306:00:008.2 7.0 se14.2 secs3.6 se10.2 secs0.5 se 20.0secs7.9 -9.9 14.2
12/0305:00:007.1 5.8 se14.2 secs3.5 se10.3 secs1.4 se 7.2secs6.5 -8.2 14.2

 

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 12/06
Combined Sea Height:8.5 ft
Dominant Period:13.0 secs
Wind Speed: 13.7 kts
Wind Gust: 17.6 kts
Wind Direction:340 degrees
Barometric Pressure:1023.6 mbs
Air Temperature: 55.2 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)
12/0604:00:008.513.013.717.63401023.655.232.0
12/0603:00:000.00.015.621.43401023.355.032.0
12/0602:00:008.28.017.621.43401023.355.032.0
12/0601:00:008.58.017.623.43401023.555.232.0
12/0600:00:007.98.015.619.53301023.155.632.0
12/0523:00:008.213.017.621.43201023.255.632.0
12/0522:00:008.28.015.621.43401023.655.832.0
12/0521:00:007.912.017.621.43301024.155.932.0
12/0520:00:007.513.013.717.63501024.754.332.0
12/0519:00:000.00.015.619.53401025.853.432.0
12/0518:00:007.213.017.621.43401025.953.232.0
12/0517:00:006.213.015.619.53401025.954.332.0
12/0516:00:006.211.015.621.43401025.954.032.0
12/0515:00:000.00.011.715.63601025.651.832.0
12/0514:00:005.913.011.715.63601025.651.832.0
12/0513:00:006.214.011.715.63501025.451.832.0
12/0512:00:006.613.09.813.73501025.352.532.0
12/0511:00:000.00.013.717.63401025.353.432.0
12/0510:00:006.613.011.717.63401025.353.432.0
12/0509:00:006.213.013.719.53401025.353.432.0
12/0508:00:007.513.011.715.63501025.253.632.0
12/0507:00:000.00.013.717.63401025.753.832.0
12/0506:00:006.613.013.719.53301025.753.632.0
12/0505:00:007.213.013.717.63401025.754.032.0

 

000175923 ___0.026506
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