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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)11/23
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 11/23
Sea Height:9.6 ft
Primary Swell Height: 7.8 ft
Primary Swell Period: 13.9 secs
Surf Height8.7 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)
11/2319:00:009.6 7.8 se13.9 secs4.6 se10.3 secs2.1 se 7.2secs8.7 -10.8 13.9
11/2318:00:0010.0 8.4 se14.2 secs4.3 se10.3 secs1.7 se 6.3secs9.5 -11.9 14.2
11/2317:00:009.7 8.2 se14.1 secs4.1 se10.3 secs2.1 se 7.2secs9.2 -11.5 14.1
11/2316:00:009.1 7.3 se14.1 secs4.3 se10.3 secs2.3 se 7.2secs8.3 -10.3 14.1
11/2315:00:009.6 7.7 se14.3 secs4.5 se10.2 secs2.5 se 7.2secs8.8 -11.1 14.3
11/2314:00:009.3 7.7 se14.4 secs4.0 se10.1 secs1.8 se 6.8secs8.8 -11.0 14.4
11/2313:00:0010.4 8.7 se14.3 secs4.4 se10.3 secs2.4 se 7.3secs10.0 -12.4 14.3
11/2312:00:009.4 7.4 se14.3 secs4.6 se10.3 secs2.7 se 7.2secs8.5 -10.6 14.3
11/2311:00:009.4 7.4 se14.5 secs5.6 se11.4 secs2.4 se 7.7secs8.7 -10.8 14.5
11/2310:00:009.2 7.6 se14.4 secs3.8 se10.3 secs2.6 se 7.2secs8.8 -10.9 14.4
11/2309:00:008.8 6.7 se14.5 secs5.3 se11.4 secs2.9 se 8.4secs7.8 -9.7 14.5
11/2308:00:009.6 7.7 se14.4 secs4.4 se17.4 secs4.6 se 10.4secs8.9 -11.1 14.4
11/2307:00:008.5 6.0 se14.6 secs5.1 se11.4 secs3.0 se 8.3secs7.0 -8.8 14.6
11/2306:00:009.3 7.0 se14.3 secs4.7 se10.4 secs2.7 se 7.1secs8.0 -9.9 14.3
11/2305:00:008.3 5.7 se12.7 secs2.0 se16.7 secs3.5 se 9.2secs5.8 -7.2 12.7
11/2304:00:008.6 6.7 se12.5 secs4.1 se15.6 secs3.0 se 9.1secs6.7 -8.3 12.5
11/2303:00:007.5 5.3 se14.3 secs3.5 se10.2 secs2.9 se 7.1secs6.1 -7.6 14.3
11/2302:00:007.3 5.5 se12.5 secs3.2 se15.6 secs2.9 se 9.3secs5.5 -6.9 12.5
11/2301:00:007.4 5.8 se12.5 secs2.7 se9.2 secs1.3 se 17.5secs5.8 -7.3 12.5
11/2300:00:006.3 4.0 se14.2 secs3.9 se10.2 secs1.8 se 17.2secs4.6 -5.8 14.2
11/2223:00:006.7 5.2 se12.4 secs2.9 se15.9 secs2.8 se 9.2secs5.2 -6.5 12.4
11/2222:00:005.9 4.1 se12.4 secs2.3 se16.4 secs2.8 se 9.1secs4.1 -5.1 12.4
11/2221:00:005.7 4.0 se12.4 secs2.3 se16.2 secs2.6 se 9.3secs4.0 -5.0 12.4
11/2220:00:006.0 4.3 se12.3 secs2.1 se16.2 secs3.1 se 9.3secs4.2 -5.3 12.3

 

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
19:00:00 (GMT) on 11/23
Combined Sea Height:10.5 ft
Dominant Period:14.0 secs
Wind Speed: 11.7 kts
Wind Gust: 13.7 kts
Wind Direction:360 degrees
Barometric Pressure:1025.7 mbs
Air Temperature: 59.0 degrees
Water Temperature:58.6 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)
11/2319:00:0010.514.011.713.73601025.759.058.6
11/2318:00:0010.813.013.715.63401026.459.058.5
11/2317:00:0011.514.011.715.63401026.659.058.6
11/2316:00:0010.814.013.717.63301025.959.058.6
11/2315:00:0010.514.013.717.63401025.758.558.6
11/2314:00:0011.215.09.811.70101024.958.158.8
11/2313:00:0010.515.011.713.73601025.358.358.8
11/2312:00:0011.515.011.715.63501025.158.359.0
11/2311:00:0010.814.013.717.63501024.558.559.0
11/2310:00:0010.815.013.717.63501024.258.659.0
11/2309:00:0010.815.015.619.53501023.459.059.0
11/2308:00:0010.515.015.617.63501023.759.259.0
11/2307:00:0010.813.017.621.43501023.359.459.0
11/2306:00:0010.515.017.621.43301023.559.759.0
11/2305:00:0011.213.019.523.43301023.159.959.2
11/2304:00:0010.514.019.523.43201022.960.159.4
11/2303:00:0010.511.019.525.43201022.260.459.4
11/2302:00:009.513.019.523.43301021.760.459.4
11/2301:00:009.212.017.621.43301021.460.859.5
11/2300:00:009.211.017.623.43301021.161.059.5
11/2223:00:008.210.015.619.53201020.961.359.9
11/2222:00:008.211.017.619.53201020.561.560.3
11/2221:00:007.59.015.619.53201019.961.760.4
11/2220:00:007.211.013.717.63101019.761.760.6

 

000101922 ___0.227166
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