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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)07/22
16:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
16:00:00 (GMT) on 07/22
Sea Height:3.8 ft
Primary Swell Height: 2.5 ft
Primary Swell Period: 8.3 secs
Surf Height1.7 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)
07/2216:00:003.8 2.5 se8.3 secs1.1 se14.6 secs0.0 se 0.0secs1.7 -2.1 8.3
07/2215:00:003.8 2.6 se8.3 secs1.2 se14.3 secs0.0 se 0.0secs1.7 -2.2 8.3
07/2214:00:003.6 2.3 se8.2 secs1.2 se14.5 secs1.0 se 11.3secs1.5 -1.9 8.2
07/2213:00:003.0 1.0 se14.5 secs1.8 se7.7 secs0.8 se 11.3secs1.1 -1.4 14.5
07/2212:00:003.3 1.5 se14.5 secs2.0 se7.7 secs0.0 se 0.0secs1.8 -2.2 14.5
07/2211:00:003.2 1.0 se15.9 secs2.2 se7.1 secs0.7 se 11.5secs1.3 -1.7 15.9
07/2210:00:003.6 1.3 se14.6 secs2.5 se7.2 secs0.7 se 11.4secs1.6 -2.0 14.6
07/2209:00:003.8 2.7 se7.1 secs1.1 se14.2 secs0.0 se 0.0secs1.6 -1.9 7.1
07/2208:00:003.7 1.5 se14.5 secs2.2 se7.6 secs0.9 se 11.4secs1.7 -2.1 14.5
07/2207:00:003.7 2.5 se7.2 secs1.1 se14.4 secs0.0 se 0.0secs1.4 -1.8 7.2
07/2206:00:004.1 3.0 se7.2 secs1.3 se14.4 secs0.7 se 10.2secs1.7 -2.1 7.2
07/2205:00:004.2 3.0 se7.2 secs1.4 se14.5 secs0.9 se 11.5secs1.7 -2.2 7.2
07/2204:00:003.9 1.6 se15.0 secs2.8 se7.1 secs0.7 se 11.5secs1.9 -2.4 15.0
07/2203:00:003.7 1.6 se14.7 secs2.4 se7.2 secs0.8 se 11.5secs1.9 -2.4 14.7
07/2202:00:003.1 1.5 se14.6 secs2.0 se7.1 secs0.8 se 11.5secs1.7 -2.1 14.6
07/2201:00:003.7 1.7 se14.6 secs2.2 se7.2 secs0.9 se 11.6secs2.0 -2.5 14.6
07/2200:00:003.3 1.5 se14.6 secs2.2 se7.2 secs0.9 se 11.4secs1.8 -2.2 14.6
07/2123:00:003.4 1.5 se14.6 secs1.9 se7.2 secs0.8 se 11.4secs1.7 -2.1 14.6
07/2122:00:003.7 1.6 se14.5 secs2.4 se7.2 secs1.1 se 11.4secs1.9 -2.4 14.5
07/2121:00:003.8 1.4 se14.8 secs2.6 se7.1 secs0.6 se 11.5secs1.7 -2.1 14.8
07/2120:00:003.9 1.4 se14.6 secs2.6 se7.6 secs0.8 se 11.4secs1.7 -2.1 14.6
07/2119:00:004.3 1.5 se14.6 secs3.0 se7.2 secs0.7 se 11.5secs1.7 -2.2 14.6
07/2118:00:004.2 3.1 se7.2 secs1.2 se14.5 secs0.8 se 11.3secs1.8 -2.2 7.2
07/2117:00:004.6 3.3 se7.2 secs1.5 se14.5 secs0.8 se 11.4secs1.9 -2.3 7.2

 

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
15:00:00 (GMT) on 07/22
Combined Sea Height:5.9 ft
Dominant Period:8.0 secs
Wind Speed: 15.6 kts
Wind Gust: 17.6 kts
Wind Direction:320 degrees
Barometric Pressure:1014.3 mbs
Air Temperature: 53.6 degrees
Water Temperature:57.0 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)
07/2215:00:005.98.015.617.63201014.353.657.0
07/2214:00:005.98.017.621.43101013.654.057.0
07/2213:00:005.68.015.619.53201013.354.956.8
07/2212:00:004.98.015.619.53201013.455.657.0
07/2211:00:004.98.09.813.73001013.355.857.0
07/2210:00:004.97.09.811.73001013.555.957.2
07/2209:00:005.28.07.89.83001013.856.357.4
07/2208:00:005.97.05.87.83101014.356.357.2
07/2207:00:005.97.07.89.83001014.656.757.4
07/2206:00:005.98.07.89.83001014.857.057.4
07/2205:00:006.27.09.89.83001015.257.457.4
07/2204:00:006.67.09.811.73001015.157.457.6
07/2203:00:005.97.09.813.73001015.057.457.6
07/2202:00:005.67.011.715.63001015.057.757.7
07/2201:00:004.97.013.715.62901015.357.957.6
07/2200:00:005.67.011.713.73001015.757.957.6
07/2123:00:005.27.011.713.73001016.357.757.6
07/2122:00:005.27.011.713.73001016.557.457.4
07/2121:00:005.67.011.713.73101016.857.257.2
07/2120:00:005.97.015.619.53001016.657.257.0
07/2119:00:006.27.013.717.63101017.257.256.8
07/2118:00:006.67.015.619.53101017.357.256.8
07/2117:00:006.67.013.717.63201017.257.456.8
07/2116:00:007.28.021.425.43001016.657.456.7

 

000154962 ___0.186161
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