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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)08/14
02:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
02:00:00 (GMT) on 08/14
Sea Height:3.5 ft
Primary Swell Height: 1.7 ft
Primary Swell Period: 15.9 secs
Surf Height2.2 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)
08/1402:00:003.5 1.7 se15.9 secs2.1 se6.7 secs0.7 se 11.5secs2.2 -2.8 15.9
08/1400:00:003.6 1.8 se16.2 secs2.2 se7.6 secs0.4 se 20.0secs2.4 -3.0 16.2
08/1323:00:003.6 2.4 se7.6 secs1.0 se16.3 secs0.8 se 13.1secs1.4 -1.8 7.6
08/1321:00:004.2 1.8 se15.9 secs2.6 se7.2 secs0.7 se 11.0secs2.3 -2.9 15.9
08/1320:00:004.3 2.0 se15.2 secs2.5 se7.6 secs0.9 se 11.3secs2.4 -3.0 15.2
08/1319:00:003.9 1.3 se16.2 secs2.7 se6.6 secs1.0 se 13.0secs1.6 -2.1 16.2
08/1316:00:003.5 1.3 se16.5 secs2.2 se6.7 secs1.1 se 9.8secs1.7 -2.1 16.5
08/1315:00:003.5 1.6 se16.7 secs2.2 se6.3 secs1.1 se 12.9secs2.1 -2.6 16.7
08/1314:00:003.1 1.4 se16.4 secs1.1 se13.0 secs1.8 se 6.6secs1.8 -2.3 16.4
08/1313:00:003.0 1.7 se16.6 secs1.0 se12.8 secs1.8 se 6.3secs2.2 -2.8 16.6
08/1312:00:003.0 1.5 se15.0 secs1.9 se6.3 secs0.9 se 11.1secs1.8 -2.2 15.0
08/1311:00:003.3 1.3 se16.6 secs1.2 se12.8 secs2.3 se 6.3secs1.7 -2.2 16.6
08/1310:00:003.6 1.5 se16.7 secs2.3 se6.3 secs1.4 se 9.8secs1.9 -2.4 16.7
08/1309:00:003.8 2.7 se6.2 secs1.1 se14.5 secs1.0 se 11.2secs1.4 -1.7 6.2
08/1307:00:004.0 1.4 se14.8 secs1.7 se10.0 secs2.3 se 6.7secs1.6 -2.0 14.8
08/1306:00:003.9 1.2 se16.1 secs1.3 se12.7 secs2.4 se 6.2secs1.6 -2.0 16.1
08/1305:00:003.7 1.4 se16.6 secs1.5 se9.9 secs1.2 se 12.9secs1.8 -2.3 16.6
08/1304:00:003.3 1.4 se16.6 secs1.1 se12.9 secs1.3 se 9.9secs1.9 -2.4 16.6
08/1303:00:002.9 1.5 se17.0 secs1.3 se9.9 secs1.7 se 5.9secs2.1 -2.6 17.0
08/1302:00:002.7 1.0 se14.4 secs1.3 se11.0 secs0.6 se 17.9secs1.2 -1.5 14.4
08/1300:00:002.8 1.4 se16.9 secs0.7 se20.0 secs1.2 se 12.8secs1.9 -2.4 16.9
08/1223:00:002.6 1.3 se17.1 secs1.3 se9.9 secs1.4 se 5.8secs1.7 -2.2 17.1
08/1222:00:002.7 1.4 se16.7 secs1.6 se9.9 secs0.7 se 20.0secs1.8 -2.3 16.7
08/1221:00:002.6 1.2 se16.9 secs1.5 se9.9 secs0.7 se 20.0secs1.7 -2.1 16.9

 

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
04:00:00 (GMT) on 08/14
Combined Sea Height:0.0 ft
Dominant Period:0.0 secs
Wind Speed: 15.6 kts
Wind Gust: 17.6 kts
Wind Direction:310 degrees
Barometric Pressure:1016.8 mbs
Air Temperature: 61.2 degrees
Water Temperature:32.0 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)
08/1404:00:000.00.015.617.63101016.861.232.0
08/1403:00:000.00.013.715.63101017.061.332.0
08/1402:00:005.26.013.715.63101017.061.532.0
08/1401:00:000.00.09.813.73101017.261.532.0
08/1400:00:005.67.013.717.63201017.532.032.0
08/1323:00:005.68.015.619.53201017.861.732.0
08/1322:00:000.00.011.715.63101018.261.332.0
08/1321:00:006.60.013.717.63201018.361.532.0
08/1320:00:000.00.013.717.63201018.661.332.0
08/1319:00:000.00.013.717.63301019.161.332.0
08/1318:00:000.00.013.717.63201019.061.232.0
08/1317:00:000.00.011.715.63201018.860.832.0
08/1316:00:000.00.013.717.63201018.660.832.0
08/1315:00:000.00.013.717.63301018.560.632.0
08/1314:00:004.97.013.719.50000.060.632.0
08/1313:00:000.00.015.619.53201017.560.832.0
08/1312:00:004.90.013.717.63201017.432.032.0
08/1311:00:000.00.011.715.63201017.160.832.0
08/1310:00:000.00.013.717.63201017.360.832.0
08/1309:00:000.00.013.715.63301017.361.032.0
08/1308:00:000.00.013.717.63301017.332.032.0
08/1307:00:006.60.015.619.53301017.432.032.0
08/1306:00:000.00.017.621.43201017.361.532.0
08/1305:00:006.26.017.623.40000.061.532.0

 

000181917 ___0.027551
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