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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)07/31
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 07/31
Sea Height:2.7 ft
Primary Swell Height: 1.9 ft
Primary Swell Period: 14.7 secs
Surf Height2.3 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)
07/3123:00:002.7 1.9 se14.7 secs1.4 se11.3 secs1.0 se 7.8secs2.3 -2.8 14.7
07/3122:00:003.1 2.5 se14.5 secs1.4 se17.6 secs1.2 se 10.0secs2.9 -3.6 14.5
07/3121:00:003.0 2.2 se14.5 secs1.2 se17.6 secs1.6 se 11.4secs2.6 -3.2 14.5
07/3120:00:003.0 2.2 se14.4 secs1.1 se17.7 secs1.7 se 11.4secs2.5 -3.1 14.4
07/3119:00:003.2 2.3 se15.9 secs1.5 se11.3 secs0.6 se 20.0secs2.9 -3.6 15.9
07/3118:00:003.5 2.6 se16.0 secs1.5 se11.2 secs0.5 se 20.0secs3.3 -4.2 16.0
07/3117:00:003.3 2.3 se16.0 secs1.6 se11.3 secs0.5 se 20.0secs2.9 -3.6 16.0
07/3116:00:003.5 2.7 se15.8 secs1.8 se11.2 secs0.5 se 20.0secs3.4 -4.2 15.8
07/3115:00:003.4 2.2 se16.4 secs2.1 se12.7 secs1.7 se 9.2secs2.8 -3.5 16.4
07/3114:00:003.4 2.7 se14.5 secs1.6 se11.4 secs1.1 se 7.8secs3.1 -3.9 14.5
07/3113:00:003.4 2.3 se16.1 secs2.3 se12.9 secs1.6 se 9.1secs2.9 -3.7 16.1
07/3112:00:003.3 2.2 se16.2 secs2.1 se12.9 secs1.5 se 9.1secs2.8 -3.5 16.2
07/3111:00:003.4 2.4 se16.3 secs2.2 se13.0 secs0.9 se 20.0secs3.1 -3.9 16.3
07/3110:00:003.5 2.4 se16.0 secs2.3 se12.9 secs1.6 se 9.1secs3.1 -3.9 16.0
07/3109:00:003.4 2.4 se16.0 secs1.7 se11.1 secs0.5 se 20.0secs3.1 -3.9 16.0
07/3108:00:003.7 2.4 se14.5 secs2.2 se11.1 secs1.3 se 17.6secs2.8 -3.5 14.5
07/3107:00:003.6 2.6 se16.1 secs2.6 se12.9 secs1.6 se 9.2secs3.3 -4.2 16.1
07/3106:00:003.6 2.9 se16.3 secs2.6 se13.1 secs1.0 se 20.0secs3.8 -4.8 16.3
07/3105:00:003.2 2.0 se16.0 secs2.1 se12.9 secs1.8 se 9.3secs2.5 -3.2 16.0
07/3104:00:003.2 2.5 se14.6 secs1.7 se11.4 secs1.3 se 8.4secs2.9 -3.6 14.6
07/3103:00:003.4 2.5 se16.1 secs2.3 se12.9 secs1.5 se 9.2secs3.2 -4.0 16.1
07/3102:00:003.3 2.3 se16.2 secs2.2 se12.9 secs1.6 se 9.2secs3.0 -3.7 16.2
07/3101:00:003.5 2.5 se16.2 secs2.4 se12.9 secs0.7 se 20.0secs3.2 -4.0 16.2
07/3100:00:003.8 2.8 se16.7 secs2.4 se12.9 secs1.3 se 20.0secs3.8 -4.7 16.7

 

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 07/31
Combined Sea Height:3.9 ft
Dominant Period:15.0 secs
Wind Speed: 1.9 kts
Wind Gust: 3.9 kts
Wind Direction:280 degrees
Barometric Pressure:1016.6 mbs
Air Temperature: 63.7 degrees
Water Temperature:63.0 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)
07/3123:00:003.915.01.93.92801016.663.763.0
07/3122:00:003.316.03.93.92901017.063.563.0
07/3121:00:003.614.03.93.92601017.763.562.4
07/3120:00:003.614.03.95.82701017.363.062.4
07/3119:00:003.614.03.93.92801017.762.862.1
07/3118:00:003.914.03.93.92801017.762.461.9
07/3117:00:003.915.03.95.82901017.662.161.9
07/3116:00:003.915.01.93.93301017.761.962.1
07/3115:00:004.315.01.93.93001017.662.262.4
07/3114:00:004.317.00.01.90001017.761.962.2
07/3113:00:003.915.01.91.92901017.361.362.4
07/3112:00:003.915.05.87.83501017.061.561.9
07/3111:00:003.915.05.87.83301016.661.962.1
07/3110:00:004.315.05.87.83201016.761.962.1
07/3109:00:004.315.05.89.82901016.661.762.1
07/3108:00:003.915.03.95.83101016.961.961.7
07/3107:00:004.610.03.97.83201017.162.161.5
07/3106:00:004.315.05.87.83001017.062.161.5
07/3105:00:004.315.05.87.83101017.062.262.1
07/3104:00:003.910.03.95.83001017.162.862.2
07/3103:00:003.915.05.87.83001016.662.662.4
07/3102:00:004.315.05.87.83001016.462.862.4
07/3101:00:003.915.05.89.82801016.262.862.6
07/3100:00:004.315.05.87.82901016.463.162.6

 

000107341 ___0.358482
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