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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)05/22
19:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
19:00:00 (GMT) on 05/22
Sea Height:5.2 ft
Primary Swell Height: 2.9 ft
Primary Swell Period: 17.5 secs
Surf Height4.0 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)
05/2219:00:005.2 2.9 se17.5 secs3.0 se9.1 secs1.5 se 12.7secs4.0 -5.0 17.5
05/2218:00:005.3 2.8 se18.8 secs2.1 se15.2 secs3.0 se 9.1secs4.2 -5.2 18.8
05/2217:00:004.9 2.1 se17.5 secs2.9 se9.9 secs2.2 se 6.8secs2.9 -3.7 17.5
05/2216:00:005.3 2.3 se17.4 secs3.5 se9.9 secs2.0 se 6.7secs3.2 -4.0 17.4
05/2215:00:005.5 2.6 se17.7 secs3.2 se10.1 secs2.2 se 6.7secs3.7 -4.6 17.7
05/2214:00:005.3 2.8 se17.3 secs2.6 se10.9 secs2.6 se 7.8secs3.8 -4.8 17.3
05/2213:00:004.9 2.3 se17.7 secs2.9 se10.0 secs2.0 se 6.8secs3.3 -4.1 17.7
05/2212:00:005.5 2.1 se17.5 secs3.4 se9.1 secs1.8 se 12.4secs2.9 -3.7 17.5
05/2211:00:005.7 4.1 se9.0 secs1.9 se17.2 secs1.9 se 12.4secs3.0 -3.7 9.0
05/2210:00:005.9 3.7 se9.9 secs1.8 se17.4 secs1.3 se 20.9secs3.0 -3.7 9.9
05/2209:00:005.6 1.8 se17.5 secs3.4 se9.1 secs1.5 se 12.5secs2.6 -3.2 17.5
05/2208:00:005.6 3.5 se9.0 secs1.9 se16.9 secs2.1 se 12.5secs2.5 -3.2 9.0
05/2207:00:005.4 3.8 se9.1 secs1.4 se16.7 secs1.9 se 12.4secs2.8 -3.5 9.1
05/2206:00:006.0 4.5 se8.4 secs1.5 se17.0 secs1.8 se 12.4secs3.0 -3.8 8.4
05/2205:00:005.5 3.9 se8.4 secs1.9 se17.1 secs2.1 se 12.4secs2.6 -3.3 8.4
05/2204:00:005.6 3.9 se9.1 secs1.5 se16.7 secs1.9 se 12.4secs2.8 -3.5 9.1
05/2203:00:005.4 3.3 se9.9 secs1.4 se16.6 secs2.5 se 6.7secs2.6 -3.3 9.9
05/2202:00:005.4 3.6 se10.0 secs1.3 se16.6 secs2.2 se 6.7secs2.9 -3.6 10.0
05/2201:00:005.6 4.0 se9.1 secs2.0 se12.1 secs1.0 se 16.7secs2.9 -3.6 9.1
05/2200:00:005.6 3.6 se10.0 secs1.9 se16.8 secs1.1 se 20.0secs2.9 -3.6 10.0
05/2123:00:005.5 3.6 se10.0 secs1.4 se14.2 secs2.2 se 6.7secs2.9 -3.6 10.0
05/2122:00:006.1 4.6 se10.1 secs1.2 se16.6 secs2.4 se 6.8secs3.7 -4.7 10.1
05/2121:00:006.7 4.9 se10.0 secs1.4 se13.8 secs2.6 se 6.7secs3.9 -4.9 10.0
05/2120:00:005.7 3.4 se10.0 secs1.5 se14.3 secs2.2 se 6.7secs2.7 -3.4 10.0

 

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
18:00:00 (GMT) on 05/22
Combined Sea Height:7.2 ft
Dominant Period:9.0 secs
Wind Speed: 9.8 kts
Wind Gust: 11.7 kts
Wind Direction:280 degrees
Barometric Pressure:1014.1 mbs
Air Temperature: 52.5 degrees
Water Temperature:53.8 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)
05/2218:00:007.29.09.811.72801014.152.553.8
05/2217:00:007.28.09.811.72801013.852.353.6
05/2216:00:006.99.09.811.72801013.852.353.6
05/2215:00:007.59.07.89.82901013.852.353.4
05/2214:00:007.510.09.811.73001013.152.553.4
05/2213:00:007.210.011.713.73101012.452.953.4
05/2212:00:006.910.011.713.73101012.053.153.4
05/2211:00:007.98.013.715.63101011.853.253.2
05/2210:00:008.28.011.715.63001011.753.153.2
05/2209:00:008.59.011.713.73101011.852.953.4
05/2208:00:008.29.09.811.72901012.152.953.6
05/2207:00:007.98.011.713.73001012.453.153.6
05/2206:00:007.99.011.715.63101012.653.153.4
05/2205:00:008.58.011.715.63101012.953.453.4
05/2204:00:007.98.015.619.53101012.753.653.6
05/2203:00:008.28.015.619.53101012.053.653.6
05/2202:00:007.99.015.621.43101012.053.853.4
05/2201:00:007.910.015.621.43101011.853.853.4
05/2200:00:008.29.015.619.53101011.853.853.4
05/2123:00:007.99.013.715.63001012.253.653.4
05/2122:00:007.99.013.717.63001012.453.853.2
05/2121:00:008.59.013.717.63101012.753.653.2
05/2120:00:009.59.017.623.43101012.653.453.1
05/2119:00:008.58.017.619.53101013.053.452.9

 

000154013 ___0.115582
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