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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)05/08
20:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
20:00:00 (GMT) on 05/08
Sea Height:9.2 ft
Primary Swell Height: 7.1 ft
Primary Swell Period: 11.0 secs
Surf Height6.3 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)
05/0820:00:009.2 7.1 se11.0 secs3.9 se7.8 secs0.5 se 14.3secs6.3 -7.8 11.0
05/0819:00:008.8 6.4 se11.0 secs3.9 se7.6 secs1.1 se 14.9secs5.7 -7.1 11.0
05/0818:00:009.4 7.4 se11.0 secs3.2 se7.7 secs1.0 se 14.3secs6.5 -8.1 11.0
05/0817:00:009.2 7.2 se10.9 secs3.6 se7.8 secs1.3 se 14.9secs6.3 -7.9 10.9
05/0816:00:0010.7 9.0 se11.1 secs3.7 se7.9 secs1.3 se 15.0secs8.0 -10.0 11.1
05/0815:00:009.4 7.8 se11.0 secs3.3 se7.7 secs0.9 se 14.3secs6.9 -8.6 11.0
05/0814:00:008.5 6.7 se11.2 secs3.4 se7.8 secs1.0 se 14.3secs6.0 -7.6 11.2
05/0813:00:009.9 8.1 se11.9 secs4.4 se8.5 secs0.0 se 0.0secs7.7 -9.7 11.9
05/0812:00:009.8 7.9 se11.3 secs3.9 se7.8 secs1.2 se 15.0secs7.2 -8.9 11.3
05/0811:00:009.7 7.9 se11.1 secs3.2 se7.7 secs1.0 se 14.3secs7.0 -8.8 11.1
05/0810:00:009.8 7.9 se11.1 secs3.5 se7.8 secs1.1 se 14.3secs7.0 -8.7 11.1
05/0809:00:0010.2 8.1 se11.2 secs4.0 se7.7 secs1.4 se 14.3secs7.2 -9.0 11.2
05/0808:00:0012.1 10.3 se11.2 secs4.3 se7.7 secs1.2 se 14.3secs9.2 -11.5 11.2
05/0807:00:0010.3 7.9 se11.1 secs4.3 se7.8 secs1.4 se 14.3secs7.0 -8.8 11.1
05/0806:00:0012.0 10.3 se11.1 secs3.6 se7.7 secs1.1 se 14.3secs9.1 -11.4 11.1
05/0805:00:0012.2 9.8 se11.1 secs4.9 se7.8 secs0.6 se 14.3secs8.7 -10.8 11.1
05/0804:00:0013.4 11.6 se11.1 secs3.9 se7.8 secs0.7 se 14.3secs10.3 -12.9 11.1
05/0803:00:0012.2 9.5 se11.0 secs5.4 se7.8 secs1.0 se 14.3secs8.4 -10.5 11.0
05/0802:00:0012.6 9.9 se11.0 secs5.1 se7.8 secs1.7 se 15.0secs8.7 -10.9 11.0
05/0801:00:0012.1 9.1 se10.9 secs5.3 se7.8 secs0.6 se 14.3secs8.0 -10.0 10.9
05/0800:00:0011.3 8.8 se11.0 secs5.1 se7.8 secs1.3 se 14.3secs7.7 -9.7 11.0
05/0723:00:009.4 6.5 se10.0 secs3.2 se6.7 secs0.7 se 14.3secs5.3 -6.6 10.0
05/0722:00:009.2 6.1 se11.2 secs4.2 se7.8 secs1.3 se 14.3secs5.5 -6.9 11.2
05/0721:00:008.6 5.9 se11.0 secs3.9 se7.8 secs1.4 se 14.3secs5.2 -6.5 11.0

 

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
21:00:00 (GMT) on 05/08
Combined Sea Height:0.0 ft
Dominant Period:0.0 secs
Wind Speed: 19.5 kts
Wind Gust: 25.4 kts
Wind Direction:330 degrees
Barometric Pressure:1018.2 mbs
Air Temperature: 52.0 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)
05/0821:00:000.00.019.525.43301018.252.032.0
05/0820:00:000.00.017.623.43301018.651.632.0
05/0819:00:000.00.019.525.43301018.751.432.0
05/0818:00:000.00.019.525.43301018.851.432.0
05/0817:00:000.00.017.623.43301018.951.132.0
05/0816:00:000.00.017.623.43301018.650.932.0
05/0815:00:000.00.017.623.43301018.350.932.0
05/0814:00:000.00.017.621.43401018.150.932.0
05/0813:00:000.00.019.523.43401017.650.732.0
05/0812:00:000.00.017.623.43301017.250.532.0
05/0811:00:000.00.021.427.33301017.250.532.0
05/0810:00:000.00.021.429.23301017.550.932.0
05/0809:00:000.00.021.427.33301017.650.732.0
05/0808:00:000.00.019.525.43301018.150.932.0
05/0807:00:000.00.023.429.23301018.151.132.0
05/0806:00:000.00.021.429.23301017.950.932.0
05/0805:00:000.00.023.429.23301018.151.132.0
05/0804:00:000.00.025.431.23201017.951.132.0
05/0803:00:000.00.027.335.13201017.651.132.0
05/0802:00:000.00.027.335.13201017.951.332.0
05/0801:00:000.00.025.433.13201018.151.432.0
05/0800:00:000.00.025.433.13201018.651.632.0
05/0723:00:000.00.025.435.13201019.351.632.0
05/0722:00:000.00.023.429.23201019.651.432.0

 

000172431 ___0.016858
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