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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)10/01
08:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
08:00:00 (GMT) on 10/01
Sea Height:4.0 ft
Primary Swell Height: 2.9 ft
Primary Swell Period: 16.2 secs
Surf Height3.8 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)
10/0108:00:004.0 2.9 se16.2 secs2.9 se12.8 secs0.8 se 20.0secs3.8 -4.7 16.2
10/0107:00:003.9 2.8 se14.5 secs2.8 se11.2 secs1.7 se 17.7secs3.2 -4.0 14.5
10/0106:00:004.2 3.3 se12.6 secs2.5 se16.0 secs1.5 se 9.4secs3.4 -4.2 12.6
10/0105:00:003.9 2.7 se14.4 secs1.6 se17.6 secs2.4 se 10.4secs3.1 -3.9 14.4
10/0104:00:004.0 2.8 se14.3 secs1.6 se17.9 secs2.3 se 10.5secs3.2 -4.0 14.3
10/0103:00:003.8 2.9 se14.3 secs1.6 se17.7 secs2.0 se 10.3secs3.3 -4.1 14.3
10/0102:00:003.9 3.0 se14.3 secs1.5 se17.7 secs1.7 se 10.3secs3.4 -4.3 14.3
10/0101:00:003.5 2.7 se14.5 secs1.7 se17.7 secs2.0 se 11.4secs3.1 -3.9 14.5
10/0100:00:003.3 2.4 se14.5 secs1.6 se17.9 secs1.4 se 10.3secs2.7 -3.4 14.5
09/3023:00:003.4 2.4 se16.5 secs2.3 se12.9 secs1.0 se 20.0secs3.2 -4.0 16.5
09/3022:00:003.2 2.4 se14.6 secs1.5 se11.5 secs1.3 se 8.4secs2.8 -3.5 14.6
09/3021:00:003.0 2.0 se16.3 secs1.9 se12.8 secs0.5 se 20.0secs2.6 -3.2 16.3
09/3020:00:003.5 2.5 se16.3 secs2.0 se13.0 secs0.7 se 20.0secs3.3 -4.1 16.3
09/3019:00:003.1 1.9 se16.2 secs1.8 se12.8 secs1.1 se 9.2secs2.4 -3.0 16.2
09/3018:00:003.1 1.8 se16.1 secs1.6 se12.9 secs1.3 se 9.2secs2.3 -2.9 16.1
09/3017:00:003.5 2.1 se16.4 secs1.6 se12.8 secs1.3 se 9.1secs2.8 -3.5 16.4
09/3016:00:003.5 2.1 se14.8 secs1.3 se11.4 secs1.6 se 8.3secs2.5 -3.1 14.8
09/3015:00:003.3 1.6 se15.0 secs1.2 se11.1 secs1.4 se 7.7secs2.0 -2.5 15.0
09/3014:00:003.7 2.3 se16.4 secs1.7 se13.1 secs0.6 se 20.0secs3.1 -3.8 16.4
09/3013:00:003.8 2.2 se16.6 secs1.6 se12.9 secs0.7 se 20.0secs2.9 -3.6 16.6
09/3012:00:003.4 2.0 se14.7 secs1.5 se11.2 secs1.4 se 6.7secs2.3 -2.9 14.7
09/3011:00:003.3 1.4 se16.7 secs1.6 se12.6 secs1.6 se 9.1secs1.9 -2.4 16.7
09/3010:00:003.4 1.8 se16.4 secs1.7 se12.7 secs1.4 se 9.2secs2.3 -2.9 16.4
09/3009:00:003.3 1.8 se16.3 secs1.5 se12.6 secs1.6 se 9.1secs2.4 -3.0 16.3

 

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
08:00:00 (GMT) on 10/01
Combined Sea Height:4.9 ft
Dominant Period:11.0 secs
Wind Speed: 11.7 kts
Wind Gust: 15.6 kts
Wind Direction:310 degrees
Barometric Pressure:1019.9 mbs
Air Temperature: 59.2 degrees
Water Temperature:58.6 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)
10/0108:00:004.911.011.715.63101019.959.258.6
10/0107:00:004.915.09.813.73101019.758.858.5
10/0106:00:004.915.015.617.63001019.459.058.6
10/0105:00:005.211.011.713.73001019.359.058.8
10/0104:00:004.911.011.715.63001019.158.858.8
10/0103:00:004.911.013.715.62901018.958.859.0
10/0102:00:004.915.013.715.63001018.658.859.2
10/0101:00:004.912.013.717.62901018.858.859.2
10/0100:00:004.615.015.619.52901018.959.259.2
09/3023:00:004.312.013.717.63001019.159.059.4
09/3022:00:004.615.013.717.63001019.658.859.2
09/3021:00:004.315.013.715.63001019.958.659.2
09/3020:00:004.316.011.713.73001020.458.359.0
09/3019:00:004.916.011.713.73101020.757.758.8
09/3018:00:004.316.013.715.63101020.957.658.6
09/3017:00:004.316.013.717.63101020.657.658.6
09/3016:00:004.916.013.715.63201020.557.458.6
09/3015:00:005.216.015.617.63201020.157.258.8
09/3014:00:004.95.013.715.63201020.057.058.8
09/3013:00:005.216.013.717.63201019.656.759.0
09/3012:00:005.216.015.617.63201019.556.359.0
09/3011:00:004.99.013.717.63201019.355.959.0
09/3010:00:004.98.011.715.63201019.355.459.0
09/3009:00:004.96.013.717.63301019.454.759.0

 

000129406 ___0.228814
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