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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)01/24
05:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
05:00:00 (GMT) on 01/24
Sea Height:18.3 ft
Primary Swell Height: 16.5 ft
Primary Swell Period: 14.4 secs
Surf Height19.1 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)
01/2405:00:0018.3 16.5 se14.4 secs6.6 se10.3 secs1.4 se 20.0secs19.1 -23.8 14.4
01/2404:00:0017.1 15.1 se14.4 secs6.3 se10.3 secs1.6 se 20.0secs17.4 -21.8 14.4
01/2403:00:0018.7 16.8 se14.3 secs6.6 se10.4 secs1.3 se 20.0secs19.3 -24.1 14.3
01/2402:00:0018.8 16.4 se15.4 secs7.5 se11.4 secs3.8 se 7.8secs20.2 -25.2 15.4
01/2401:00:0017.7 15.6 se14.4 secs7.0 se10.3 secs3.5 se 7.2secs17.9 -22.4 14.4
01/2400:00:0016.7 14.7 se14.6 secs9.2 se11.5 secs3.8 se 8.4secs17.1 -21.4 14.6
01/2323:00:0016.6 15.0 se14.3 secs5.6 se10.3 secs1.2 se 20.0secs17.1 -21.3 14.3
01/2322:00:0015.1 13.3 se14.4 secs5.5 se10.2 secs1.7 se 20.0secs15.4 -19.2 14.4
01/2321:00:0015.5 13.4 se14.4 secs6.8 se10.2 secs1.0 se 20.0secs15.4 -19.3 14.4
01/2320:00:0014.4 11.9 se14.4 secs6.8 se10.3 secs2.9 se 7.2secs13.8 -17.2 14.4
01/2319:00:0012.2 9.8 se14.2 secs4.1 se17.4 secs6.1 se 10.4secs11.1 -13.9 14.2
01/2318:00:0011.5 8.9 se14.1 secs3.6 se17.3 secs6.0 se 10.2secs10.1 -12.6 14.1
01/2317:00:0011.5 9.1 se14.2 secs6.1 se10.3 secs2.2 se 7.2secs10.3 -12.9 14.2
01/2316:00:0012.3 9.4 se14.3 secs4.4 se17.4 secs6.5 se 10.3secs10.8 -13.6 14.3
01/2315:00:0013.0 10.6 se14.1 secs6.4 se10.3 secs2.4 se 7.2secs12.0 -15.0 14.1
01/2314:00:0012.8 10.7 se13.9 secs5.8 se10.3 secs2.7 se 7.3secs11.9 -14.9 13.9
01/2313:00:0012.7 10.9 se12.7 secs3.1 se17.1 secs4.9 se 9.3secs11.1 -13.8 12.7
01/2312:00:0012.3 10.1 se14.2 secs4.2 se17.4 secs5.9 se 10.3secs11.4 -14.3 14.2
01/2311:00:0012.7 10.5 se14.1 secs3.7 se17.1 secs5.9 se 10.3secs11.8 -14.8 14.1
01/2310:00:0012.1 10.2 se12.7 secs2.7 se16.7 secs4.5 se 9.3secs10.4 -13.0 12.7
01/2309:00:0013.9 12.1 se12.7 secs5.3 se9.1 secs2.6 se 16.7secs12.3 -15.4 12.7
01/2308:00:0013.9 12.1 se12.7 secs3.1 se17.2 secs4.4 se 9.2secs12.4 -15.5 12.7
01/2307:00:0014.1 12.6 se12.7 secs4.8 se9.3 secs2.2 se 16.7secs12.8 -16.0 12.7
01/2306:00:0015.2 12.9 se12.7 secs3.8 se17.1 secs6.0 se 9.3secs13.1 -16.4 12.7

 

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
05:00:00 (GMT) on 01/24
Combined Sea Height:15.7 ft
Dominant Period:14.0 secs
Wind Speed: 5.8 kts
Wind Gust: 9.8 kts
Wind Direction:150 degrees
Barometric Pressure:1011.4 mbs
Air Temperature: 49.5 degrees
Water Temperature:54.0 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)
01/2405:00:0015.714.05.89.81501011.449.554.0
01/2404:00:0020.015.03.99.81401011.348.254.0
01/2403:00:0018.715.07.811.72301011.548.254.1
01/2402:00:0020.014.017.621.42201010.648.954.3
01/2401:00:0020.315.013.717.62501010.651.454.3
01/2400:00:0019.414.011.715.62501010.452.254.5
01/2323:00:0018.015.011.715.62401010.452.554.5
01/2322:00:0018.014.09.813.72501010.552.554.5
01/2321:00:0016.714.013.717.62601010.652.054.5
01/2320:00:0017.115.011.715.62801010.752.254.5
01/2319:00:0015.715.015.621.42901011.252.254.5
01/2318:00:0013.813.017.621.42801011.051.854.5
01/2317:00:0013.113.015.619.52801010.651.454.5
01/2316:00:0012.814.015.625.42701009.752.354.5
01/2315:00:0014.115.011.715.62701008.951.454.5
01/2314:00:0014.413.011.715.62701008.451.454.5
01/2313:00:0014.114.019.527.32701007.549.554.5
01/2312:00:0014.414.011.715.62501007.051.154.5
01/2311:00:0013.813.09.813.72301006.750.754.5
01/2310:00:0014.414.07.811.72301006.749.854.5
01/2309:00:0013.814.021.427.32501006.450.454.5
01/2308:00:0015.714.015.619.52301006.252.254.5
01/2307:00:0015.413.015.619.52401006.052.354.5
01/2306:00:0015.713.013.719.52401005.752.554.5

 

000141333 ___0.235998
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