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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)03/23
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 03/23
Sea Height:7.6 ft
Primary Swell Height: 5.4 ft
Primary Swell Period: 12.4 secs
Surf Height5.3 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)
03/2308:00:007.6 5.4 se12.4 secs3.3 se15.9 secs3.7 se 9.4secs5.3 -6.7 12.4
03/2307:00:007.0 4.6 se14.5 secs4.5 se11.2 secs2.1 se 7.7secs5.3 -6.6 14.5
03/2306:00:007.3 5.5 se12.6 secs3.6 se15.6 secs3.4 se 9.3secs5.5 -6.9 12.6
03/2305:00:007.4 5.5 se12.4 secs3.1 se15.7 secs3.6 se 9.3secs5.5 -6.8 12.4
03/2304:00:007.2 4.5 se14.5 secs4.6 se11.2 secs2.7 se 17.6secs5.2 -6.5 14.5
03/2303:00:006.7 5.1 se12.4 secs3.0 se15.9 secs3.0 se 9.3secs5.1 -6.4 12.4
03/2302:00:007.2 5.5 se12.5 secs3.4 se15.7 secs3.4 se 9.3secs5.5 -6.9 12.5
03/2301:00:006.4 4.7 se12.3 secs2.3 se16.1 secs3.2 se 9.2secs4.6 -5.8 12.3
03/2300:00:007.3 5.8 se12.6 secs4.0 se15.7 secs3.1 se 9.4secs5.9 -7.3 12.6
03/2223:00:006.8 5.3 se12.4 secs3.0 se15.9 secs3.0 se 9.2secs5.3 -6.6 12.4
03/2222:00:007.3 5.9 se12.3 secs3.1 se15.7 secs2.1 se 8.4secs5.8 -7.3 12.3
03/2221:00:007.0 5.5 se12.4 secs3.2 se15.8 secs2.5 se 9.3secs5.5 -6.9 12.4
03/2220:00:008.0 6.7 se12.4 secs3.2 se16.0 secs3.0 se 9.2secs6.7 -8.4 12.4
03/2219:00:006.9 5.3 se12.5 secs3.0 se15.8 secs3.2 se 9.2secs5.3 -6.6 12.5
03/2218:00:006.8 4.5 se14.1 secs4.1 se10.2 secs2.1 se 17.5secs5.1 -6.4 14.1
03/2217:00:007.4 5.4 se12.5 secs3.5 se15.8 secs3.7 se 9.3secs5.4 -6.8 12.5
03/2216:00:007.2 5.1 se12.4 secs2.8 se16.0 secs3.9 se 9.3secs5.1 -6.3 12.4
03/2215:00:006.5 4.2 se14.2 secs3.8 se10.1 secs2.1 se 17.8secs4.8 -6.0 14.2
03/2214:00:006.0 4.4 se14.6 secs3.2 se11.4 secs2.5 se 8.3secs5.1 -6.4 14.6
03/2213:00:005.1 3.7 se14.7 secs2.4 se11.4 secs2.1 se 8.3secs4.3 -5.4 14.7
03/2212:00:004.8 3.1 se16.3 secs2.6 se12.9 secs2.3 se 7.8secs4.1 -5.1 16.3
03/2211:00:004.9 3.5 se16.2 secs2.5 se7.6 secs1.5 se 11.2secs4.5 -5.7 16.2
03/2210:00:003.9 2.6 se16.4 secs1.7 se13.2 secs0.7 se 20.0secs3.5 -4.3 16.4
03/2209:00:004.7 3.9 se16.1 secs1.3 se11.1 secs0.7 se 20.0secs5.0 -6.3 16.1

 

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 03/23
Combined Sea Height:9.8 ft
Dominant Period:11.0 secs
Wind Speed: 19.5 kts
Wind Gust: 23.4 kts
Wind Direction:320 degrees
Barometric Pressure:1021.2 mbs
Air Temperature: 53.4 degrees
Water Temperature:55.0 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)
03/2308:00:009.811.019.523.43201021.253.455.0
03/2307:00:009.811.021.425.43101020.953.455.0
03/2306:00:008.911.019.521.43101020.953.455.2
03/2305:00:009.211.019.523.43101020.453.655.4
03/2304:00:009.211.019.523.43101020.153.455.4
03/2303:00:009.211.017.621.43101019.653.455.6
03/2302:00:008.211.017.619.53001019.053.655.6
03/2301:00:008.911.017.621.43101018.953.855.6
03/2300:00:008.212.015.619.53001018.854.155.6
03/2223:00:008.911.013.717.63001018.854.155.6
03/2222:00:008.511.015.617.63001019.054.055.6
03/2221:00:008.911.011.715.63001019.054.355.6
03/2220:00:008.211.011.715.63001019.154.355.6
03/2219:00:009.512.011.715.63101019.154.155.4
03/2218:00:008.511.011.713.73201018.854.155.4
03/2217:00:008.512.011.713.73001018.454.555.2
03/2216:00:009.210.013.717.63101017.654.755.2
03/2215:00:008.910.011.715.63101017.054.955.2
03/2214:00:008.210.013.715.63001016.354.755.4
03/2213:00:007.215.013.717.63001015.554.955.4
03/2212:00:006.216.09.813.72901015.055.055.4
03/2211:00:006.216.05.89.82601014.655.455.6
03/2210:00:006.216.09.811.72701014.455.655.6
03/2209:00:005.216.05.87.82401014.455.855.6

 

000146545 ___0.240463
.
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