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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)12/04
12:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
12:00:00 (GMT) on 12/04
Sea Height:11.3 ft
Primary Swell Height: 9.1 ft
Primary Swell Period: 14.6 secs
Surf Height10.6 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)
12/0412:00:0011.3 9.1 se14.6 secs6.1 se11.5 secs1.8 se 20.0secs10.6 -13.3 14.6
12/0411:00:0013.2 11.4 se16.5 secs7.1 se13.1 secs3.2 se 20.0secs15.1 -18.8 16.5
12/0410:00:0014.4 12.4 se16.1 secs5.4 se11.4 secs2.6 se 20.0secs16.0 -20.0 16.1
12/0409:00:0011.8 10.1 se16.6 secs6.6 se13.1 secs3.9 se 20.0secs13.4 -16.8 16.6
12/0408:00:0013.1 11.6 se16.9 secs4.5 se20.0 secs5.6 se 13.0secs15.7 -19.6 16.9
12/0407:00:0011.4 9.6 se17.2 secs4.5 se12.5 secs3.5 se 9.1secs13.2 -16.5 17.2
12/0406:00:0010.1 7.6 se17.0 secs3.5 se20.0 secs5.3 se 12.7secs10.3 -12.9 17.0
12/0405:00:0010.4 7.6 se17.3 secs5.1 se12.6 secs3.7 se 9.0secs10.5 -13.1 17.3
12/0404:00:0010.6 8.2 se17.5 secs4.6 se12.6 secs4.1 se 8.3secs11.5 -14.4 17.5
12/0403:00:0011.4 9.5 se18.2 secs4.1 se12.7 secs3.1 se 9.1secs13.8 -17.3 18.2
12/0402:00:009.0 6.9 se18.3 secs5.7 se15.2 secs3.6 se 11.3secs10.1 -12.6 18.3
12/0401:00:009.0 6.4 se17.8 secs4.6 se14.7 secs4.6 se 11.3secs9.2 -11.5 17.8
12/0400:00:009.1 6.1 se18.9 secs3.9 se14.6 secs4.4 se 11.3secs9.2 -11.6 18.9
12/0323:00:008.7 5.3 se17.9 secs5.1 se12.3 secs3.2 se 8.3secs7.7 -9.6 17.9
12/0322:00:007.6 4.5 se17.7 secs3.9 se14.3 secs3.6 se 10.3secs6.4 -8.0 17.7
12/0321:00:009.2 6.2 se17.7 secs5.2 se14.4 secs5.5 se 11.4secs8.7 -10.9 17.7
12/0320:00:008.5 5.1 se19.2 secs4.2 se14.5 secs4.3 se 11.3secs7.9 -9.9 19.2
12/0319:00:008.1 4.8 se19.9 secs5.0 se12.4 secs3.0 se 9.1secs7.6 -9.5 19.9
12/0318:00:007.4 4.3 se17.9 secs4.1 se12.3 secs3.1 se 9.1secs6.2 -7.8 17.9
12/0317:00:008.8 5.9 se17.9 secs5.0 se14.4 secs3.5 se 10.3secs8.5 -10.6 17.9
12/0316:00:008.3 5.5 se19.0 secs3.8 se14.3 secs3.6 se 10.2secs8.4 -10.5 19.0
12/0315:00:007.6 4.1 se17.6 secs4.8 se12.4 secs3.3 se 8.3secs5.8 -7.2 17.6
12/0314:00:008.5 4.9 se17.7 secs4.7 se14.1 secs4.0 se 10.2secs7.0 -8.7 17.7
12/0313:00:007.7 4.9 se17.7 secs4.3 se12.6 secs3.1 se 9.1secs6.9 -8.6 17.7

 

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
12:00:00 (GMT) on 12/04
Combined Sea Height:15.4 ft
Dominant Period:16.0 secs
Wind Speed: 17.6 kts
Wind Gust: 23.4 kts
Wind Direction:330 degrees
Barometric Pressure:1020.5 mbs
Air Temperature: 54.7 degrees
Water Temperature:55.6 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)
12/0412:00:0015.416.017.623.43301020.554.755.6
12/0411:00:0013.114.017.621.43301020.654.755.6
12/0410:00:0014.816.015.623.43201021.054.755.6
12/0409:00:0016.116.017.623.43201021.254.755.8
12/0408:00:0013.416.019.523.43201021.554.955.8
12/0407:00:0014.417.017.621.43201021.955.255.9
12/0406:00:0013.117.015.621.43201022.155.255.9
12/0405:00:0011.817.017.621.43301021.755.255.9
12/0404:00:0012.517.017.621.43301021.755.256.1
12/0403:00:0012.517.019.521.43301021.655.256.1
12/0402:00:0013.117.019.525.43301021.655.256.1
12/0401:00:0010.817.021.425.43201021.555.255.9
12/0400:00:0010.819.019.525.43201021.955.055.9
12/0323:00:0011.219.021.425.43201021.955.255.9
12/0322:00:0010.519.017.623.43301022.355.255.9
12/0321:00:009.519.019.523.43301022.654.955.9
12/0320:00:0011.219.021.425.43301023.054.755.9
12/0319:00:0010.519.019.523.43301023.955.055.9
12/0318:00:009.819.019.523.43301024.655.455.9
12/0317:00:009.219.015.619.53301025.055.655.9
12/0316:00:0010.519.015.619.53401024.555.655.9
12/0315:00:0010.219.017.619.53401024.055.455.9
12/0314:00:009.512.017.621.43301023.755.455.9
12/0313:00:0010.519.019.523.43301023.455.255.9

 

000136309 ___0.179997
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