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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)10/22
21:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
21:00:00 (GMT) on 10/22
Sea Height:6.3 ft
Primary Swell Height: 5.0 ft
Primary Swell Period: 12.4 secs
Surf Height4.9 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)
10/2221:00:006.3 5.0 se12.4 secs3.1 se9.3 secs0.6 se 16.7secs4.9 -6.2 12.4
10/2220:00:006.8 5.7 se12.5 secs3.0 se9.3 secs0.6 se 17.9secs5.8 -7.2 12.5
10/2219:00:008.2 7.4 se12.5 secs2.7 se9.2 secs1.2 se 6.0secs7.4 -9.3 12.5
10/2218:00:008.0 7.3 se12.6 secs2.5 se9.2 secs0.6 se 16.7secs7.3 -9.1 12.6
10/2217:00:007.3 6.3 se12.5 secs3.0 se9.3 secs1.0 se 17.5secs6.3 -7.8 12.5
10/2216:00:008.2 7.3 se12.4 secs3.0 se9.3 secs0.9 se 16.7secs7.2 -9.0 12.4
10/2215:00:006.6 5.5 se12.6 secs3.1 se9.4 secs1.0 se 17.7secs5.5 -6.9 12.6
10/2214:00:006.8 5.8 se12.6 secs3.0 se9.4 secs0.7 se 17.7secs5.8 -7.3 12.6
10/2213:00:006.7 5.6 se12.7 secs2.9 se9.3 secs1.1 se 17.4secs5.7 -7.1 12.7
10/2212:00:008.3 7.5 se12.8 secs2.8 se9.2 secs0.7 se 16.7secs7.7 -9.6 12.8
10/2211:00:007.7 7.0 se12.9 secs2.5 se9.1 secs0.6 se 16.7secs7.2 -9.0 12.9
10/2210:00:008.3 7.3 se12.6 secs3.0 se9.2 secs1.5 se 17.8secs7.4 -9.2 12.6
10/2209:00:008.0 7.0 se12.7 secs2.9 se9.2 secs1.1 se 17.7secs7.1 -8.9 12.7
10/2208:00:007.6 6.0 se13.9 secs3.6 se10.3 secs1.8 se 17.2secs6.7 -8.4 13.9
10/2207:00:007.2 5.7 se12.6 secs1.8 se17.5 secs3.1 se 9.2secs5.8 -7.2 12.6
10/2206:00:008.0 6.5 se12.7 secs3.3 se9.2 secs1.8 se 16.7secs6.6 -8.2 12.7
10/2205:00:007.9 6.6 se12.6 secs1.9 se16.7 secs3.0 se 9.2secs6.7 -8.4 12.6
10/2204:00:009.4 7.6 se14.2 secs3.6 se17.8 secs4.3 se 10.3secs8.7 -10.8 14.2
10/2203:00:0010.7 8.4 se14.1 secs5.7 se10.4 secs3.0 se 17.2secs9.4 -11.8 14.1
10/2202:00:009.8 7.8 se14.1 secs5.1 se10.4 secs2.4 se 7.2secs8.7 -10.9 14.1
10/2201:00:0011.3 10.2 se14.1 secs4.3 se10.3 secs1.8 se 7.1secs11.4 -14.3 14.1
10/2200:00:0011.6 9.9 se14.0 secs4.9 se10.3 secs2.1 se 7.2secs11.1 -13.9 14.0
10/2123:00:0012.0 10.5 se14.3 secs4.6 se17.4 secs5.2 se 10.4secs12.0 -15.0 14.3
10/2122:00:0011.8 9.7 se14.2 secs6.0 se10.4 secs2.1 se 7.2secs11.1 -13.8 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
21:00:00 (GMT) on 10/22
Combined Sea Height:8.5 ft
Dominant Period:12.0 secs
Wind Speed: 5.8 kts
Wind Gust: 7.8 kts
Wind Direction:330 degrees
Barometric Pressure:1017.1 mbs
Air Temperature: 62.2 degrees
Water Temperature:62.6 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)
10/2221:00:008.512.05.87.83301017.162.262.6
10/2220:00:007.512.01.93.90101017.762.162.6
10/2219:00:007.913.03.95.83301018.161.762.1
10/2218:00:009.213.03.95.83101018.361.761.7
10/2217:00:008.913.07.89.83101018.461.261.5
10/2216:00:008.212.03.95.83201018.061.261.5
10/2215:00:009.211.05.87.83201017.961.261.0
10/2214:00:007.913.05.87.83401017.060.661.0
10/2213:00:007.913.05.87.83501016.860.661.2
10/2212:00:007.913.07.87.83501016.860.861.0
10/2211:00:009.213.07.87.83501016.760.861.0
10/2210:00:008.914.07.87.83501017.061.061.0
10/2209:00:009.514.05.87.83501017.361.261.2
10/2208:00:009.214.05.87.83501017.061.561.3
10/2207:00:008.913.09.811.73301017.261.761.3
10/2206:00:008.513.09.811.73401017.261.761.5
10/2205:00:009.513.09.811.73301017.161.761.5
10/2204:00:009.212.09.813.73301017.061.961.5
10/2203:00:0010.513.011.713.73201016.861.961.5
10/2202:00:0011.811.011.715.63201016.861.961.3
10/2201:00:0011.214.013.715.63201016.661.961.2
10/2200:00:0012.514.011.715.63101017.062.161.3
10/2123:00:0012.814.011.717.63101017.261.961.2
10/2122:00:0012.814.013.717.63201017.661.561.3

 

000101137 ___0.227826
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