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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)11/30
13:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
13:00:00 (GMT) on 11/30
Sea Height:4.6 ft
Primary Swell Height: 3.2 ft
Primary Swell Period: 12.7 secs
Surf Height3.2 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)
11/3013:00:004.6 3.2 se12.7 secs1.1 se16.7 secs1.7 se 9.2secs3.2 -4.0 12.7
11/3012:00:005.0 3.6 se14.5 secs2.6 se11.3 secs1.9 se 7.1secs4.1 -5.2 14.5
11/3011:00:005.0 2.7 se16.2 secs3.2 se12.7 secs2.4 se 7.1secs3.6 -4.4 16.2
11/3010:00:004.8 3.1 se12.3 secs2.0 se16.1 secs2.3 se 6.7secs3.1 -3.8 12.3
11/3009:00:004.9 2.9 se12.4 secs2.1 se16.1 secs2.1 se 9.3secs2.8 -3.5 12.4
11/3008:00:004.5 2.9 se12.2 secs1.3 se16.3 secs1.9 se 8.5secs2.9 -3.6 12.2
11/3007:00:004.6 3.2 se12.1 secs1.2 se16.1 secs2.2 se 6.6secs3.0 -3.8 12.1
11/3006:00:004.8 3.6 se11.1 secs1.0 se16.2 secs2.0 se 6.3secs3.2 -3.9 11.1
11/3005:00:004.6 3.6 se11.1 secs1.0 se16.4 secs1.4 se 7.7secs3.2 -4.1 11.1
11/3004:00:004.6 3.2 se12.0 secs2.0 se8.4 secs0.3 se 16.7secs3.1 -3.8 12.0
11/3003:00:004.3 3.3 se11.2 secs1.5 se7.8 secs0.6 se 14.9secs3.0 -3.7 11.2
11/3002:00:004.2 3.2 se11.3 secs1.3 se7.7 secs0.6 se 14.3secs2.9 -3.6 11.3
11/3001:00:004.5 3.5 se11.3 secs0.9 se16.0 secs1.6 se 7.8secs3.2 -4.0 11.3
11/3000:00:004.7 3.4 se12.1 secs2.0 se8.5 secs0.0 se 0.0secs3.3 -4.1 12.1
11/2923:00:004.2 3.0 se12.1 secs1.8 se8.5 secs0.0 se 0.0secs2.9 -3.6 12.1
11/2922:00:004.1 3.2 se11.3 secs1.4 se7.8 secs0.7 se 14.9secs2.9 -3.6 11.3
11/2921:00:004.5 3.5 se11.2 secs1.6 se7.8 secs0.7 se 14.8secs3.1 -3.9 11.2
11/2920:00:004.8 3.6 se12.3 secs2.0 se9.2 secs1.8 se 5.9secs3.5 -4.4 12.3
11/2919:00:004.6 3.8 se11.2 secs1.5 se7.8 secs0.6 se 14.3secs3.4 -4.2 11.2
11/2918:00:004.6 3.5 se12.2 secs1.6 se8.5 secs0.0 se 0.0secs3.5 -4.3 12.2
11/2917:00:004.4 3.0 se12.3 secs2.2 se9.3 secs1.6 se 5.9secs2.9 -3.7 12.3
11/2916:00:004.3 2.9 se12.2 secs1.8 se8.5 secs0.2 se 16.7secs2.8 -3.5 12.2
11/2915:00:004.7 3.7 se12.3 secs1.9 se9.3 secs1.6 se 6.3secs3.7 -4.6 12.3
11/2914:00:004.7 3.8 se12.2 secs1.6 se8.4 secs0.2 se 16.7secs3.7 -4.7 12.2

 

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
14:00:00 (GMT) on 11/30
Combined Sea Height:6.6 ft
Dominant Period:0.0 secs
Wind Speed: 9.8 kts
Wind Gust: 11.7 kts
Wind Direction:340 degrees
Barometric Pressure:1020.5 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)
11/3014:00:006.60.09.811.73401020.555.232.0
11/3013:00:000.00.07.811.73501020.054.732.0
11/3012:00:006.215.09.813.73501020.154.532.0
11/3011:00:000.00.09.813.73401020.453.132.0
11/3010:00:006.211.09.811.73501020.353.132.0
11/3009:00:000.00.011.715.63301020.552.732.0
11/3008:00:006.211.011.715.63401020.652.932.0
11/3007:00:006.211.011.715.63401021.153.132.0
11/3006:00:006.611.013.715.63401020.952.732.0
11/3005:00:006.211.015.619.53301021.052.532.0
11/3004:00:006.611.013.717.63301020.952.532.0
11/3003:00:000.00.017.621.43401020.652.732.0
11/3002:00:005.911.017.621.43301020.452.932.0
11/3001:00:006.211.015.621.43301020.353.132.0
11/3000:00:000.00.015.619.53301020.052.732.0
11/2923:00:005.911.015.619.53301020.152.932.0
11/2922:00:005.911.015.619.53401020.153.232.0
11/2921:00:006.211.017.621.43301020.653.132.0
11/2920:00:006.612.015.617.63401021.053.232.0
11/2919:00:006.211.017.621.43301021.753.232.0
11/2918:00:000.00.013.715.63401022.753.132.0
11/2917:00:000.00.013.717.63501022.453.232.0
11/2916:00:005.911.013.715.63401022.553.132.0
11/2915:00:006.212.015.619.53401022.253.232.0

 

000175688 ___0.027015
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