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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)10/31
23:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
23:00:00 (GMT) on 10/31
Sea Height:3.2 ft
Primary Swell Height: 2.1 ft
Primary Swell Period: 14.7 secs
Surf Height2.5 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)
10/3123:00:003.2 2.1 se14.7 secs1.5 se11.1 secs1.1 se 7.8secs2.5 -3.2 14.7
10/3122:00:003.3 2.2 se14.7 secs1.6 se11.2 secs1.3 se 7.8secs2.5 -3.2 14.7
10/3121:00:003.4 2.2 se14.7 secs1.6 se11.2 secs1.0 se 7.8secs2.6 -3.3 14.7
10/3120:00:003.0 1.9 se14.5 secs1.7 se11.3 secs1.2 se 7.8secs2.2 -2.8 14.5
10/3119:00:002.9 1.7 se14.5 secs1.7 se11.2 secs1.3 se 7.8secs1.9 -2.4 14.5
10/3118:00:002.8 1.8 se14.5 secs1.6 se11.3 secs1.2 se 7.8secs2.0 -2.6 14.5
10/3117:00:002.9 1.8 se12.6 secs1.7 se9.1 secs0.6 se 16.7secs1.9 -2.3 12.6
10/3116:00:002.7 1.7 se14.3 secs0.9 se17.4 secs1.5 se 10.0secs1.9 -2.4 14.3
10/3115:00:002.3 1.4 se14.4 secs1.3 se11.3 secs1.1 se 7.8secs1.6 -2.0 14.4
10/3114:00:002.2 1.2 se14.3 secs1.3 se10.0 secs0.9 se 6.8secs1.4 -1.7 14.3
10/3113:00:002.4 1.4 se14.2 secs1.5 se10.2 secs0.7 se 17.5secs1.6 -2.1 14.2
10/3112:00:002.3 1.5 se12.4 secs1.0 se15.8 secs1.2 se 9.3secs1.5 -1.8 12.4
10/3111:00:002.4 1.3 se14.4 secs1.5 se11.2 secs1.0 se 7.7secs1.5 -1.9 14.4
10/3110:00:002.7 1.4 se14.4 secs1.8 se11.0 secs1.1 se 7.8secs1.6 -2.0 14.4
10/3109:00:002.9 1.9 se12.4 secs1.2 se16.0 secs1.7 se 9.3secs1.8 -2.3 12.4
10/3108:00:003.0 2.0 se12.3 secs1.2 se16.0 secs1.5 se 9.2secs1.9 -2.4 12.3
10/3107:00:003.3 2.3 se12.3 secs1.2 se15.6 secs1.4 se 9.2secs2.3 -2.9 12.3
10/3106:00:002.9 2.2 se12.2 secs1.0 se15.7 secs1.4 se 9.1secs2.1 -2.6 12.2
10/3105:00:002.8 2.0 se11.1 secs1.3 se14.2 secs0.6 se 17.5secs1.8 -2.3 11.1
10/3104:00:003.0 2.0 se12.4 secs1.1 se16.2 secs1.7 se 9.1secs2.0 -2.5 12.4
10/3103:00:003.0 2.1 se11.3 secs0.8 se15.9 secs1.4 se 7.8secs1.9 -2.3 11.3
10/3102:00:003.3 2.2 se12.2 secs1.9 se9.2 secs0.9 se 15.7secs2.1 -2.7 12.2
10/3101:00:003.7 2.7 se12.2 secs2.0 se9.2 secs1.0 se 15.2secs2.6 -3.3 12.2
10/3100:00:003.8 3.0 se11.2 secs1.0 se15.4 secs1.4 se 7.8secs2.7 -3.4 11.2

 

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
23:00:00 (GMT) on 10/31
Combined Sea Height:4.6 ft
Dominant Period:15.0 secs
Wind Speed: 9.8 kts
Wind Gust: 11.7 kts
Wind Direction:310 degrees
Barometric Pressure:1008.3 mbs
Air Temperature: 60.6 degrees
Water Temperature:61.7 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)
10/3123:00:004.615.09.811.73101008.360.661.7
10/3122:00:004.315.09.811.73101009.060.861.7
10/3121:00:004.615.09.811.73101008.960.361.5
10/3120:00:004.99.07.89.83101009.559.261.7
10/3119:00:004.69.05.87.83401011.058.861.5
10/3118:00:004.69.09.811.73401010.958.861.5
10/3117:00:004.39.011.715.63401011.858.161.7
10/3116:00:004.39.07.89.83201011.958.161.9
10/3115:00:003.99.07.89.83101011.657.761.9
10/3114:00:003.39.011.713.71701010.462.162.1
10/3113:00:003.39.013.715.61701010.462.162.2
10/3112:00:003.310.013.715.61801010.561.962.2
10/3111:00:003.311.013.715.61501009.561.362.2
10/3110:00:003.310.011.713.71601010.961.362.2
10/3109:00:003.610.011.713.71601011.860.862.2
10/3108:00:003.610.011.713.71501011.961.262.2
10/3107:00:003.911.09.811.71501012.361.262.2
10/3106:00:003.911.09.811.71501012.560.662.4
10/3105:00:003.611.09.811.71501012.760.662.4
10/3104:00:003.611.07.89.81501012.360.862.4
10/3103:00:003.99.05.87.81501012.360.862.4
10/3102:00:003.911.05.85.81801012.360.462.6
10/3101:00:004.311.03.95.81601011.960.862.6
10/3100:00:004.611.03.93.92001012.060.662.6

 

000101367 ___0.235529
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