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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)10/23
18:00:00
 Wait ...
 Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile
      

 

Current Swell & Surf Analysis
Buoy 46012
18:00:00 (GMT) on 10/23
Sea Height:8.1 ft
Primary Swell Height: 7.2 ft
Primary Swell Period: 12.7 secs
Surf Height7.3 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)
10/2318:00:008.1 7.2 se12.7 secs2.6 se9.3 secs1.4 se 16.7secs7.3 -9.1 12.7
10/2317:00:006.8 5.7 se12.7 secs2.8 se9.2 secs1.2 se 17.6secs5.8 -7.2 12.7
10/2316:00:008.7 7.8 se12.6 secs3.2 se9.2 secs1.4 se 16.7secs7.8 -9.8 12.6
10/2315:00:009.5 7.9 se13.8 secs4.7 se10.3 secs0.9 se 6.7secs8.8 -11.0 13.8
10/2314:00:008.4 7.6 se12.6 secs1.8 se17.2 secs2.7 se 9.2secs7.6 -9.5 12.6
10/2313:00:009.9 8.7 se13.7 secs4.2 se10.3 secs1.6 se 17.5secs9.5 -11.9 13.7
10/2312:00:008.7 7.0 se14.0 secs4.7 se10.4 secs2.5 se 17.1secs7.8 -9.8 14.0
10/2311:00:009.8 8.0 se14.0 secs5.1 se10.4 secs2.6 se 17.3secs8.9 -11.1 14.0
10/2310:00:009.0 7.5 se14.0 secs4.4 se10.4 secs1.6 se 7.2secs8.4 -10.4 14.0
10/2309:00:0010.1 9.0 se14.0 secs4.1 se10.3 secs1.6 se 7.2secs10.1 -12.6 14.0
10/2308:00:008.8 7.1 se14.1 secs2.9 se17.5 secs4.5 se 10.4secs8.1 -10.1 14.1
10/2307:00:009.0 7.7 se14.0 secs4.1 se10.4 secs2.4 se 17.1secs8.7 -10.8 14.0
10/2306:00:008.2 6.6 se14.2 secs3.0 se17.2 secs4.3 se 10.4secs7.4 -9.3 14.2
10/2305:00:007.8 5.9 se14.1 secs2.8 se17.7 secs4.5 se 10.4secs6.7 -8.4 14.1
10/2304:00:007.3 5.5 se14.2 secs4.1 se10.4 secs2.4 se 17.3secs6.2 -7.8 14.2
10/2303:00:007.3 6.0 se12.3 secs2.8 se16.0 secs3.0 se 9.3secs5.9 -7.3 12.3
10/2302:00:007.1 5.9 se12.4 secs3.1 se16.0 secs2.7 se 9.2secs5.8 -7.3 12.4
10/2301:00:006.5 5.2 se12.3 secs2.0 se16.0 secs3.1 se 9.2secs5.1 -6.4 12.3
10/2300:00:006.2 5.1 se12.3 secs2.1 se15.7 secs2.6 se 9.3secs5.1 -6.3 12.3
10/2223:00:007.5 6.4 se12.6 secs3.3 se9.3 secs0.9 se 18.2secs6.4 -8.0 12.6
10/2222:00:007.4 6.6 se12.5 secs2.8 se9.2 secs0.7 se 17.9secs6.6 -8.3 12.5
10/2221:00:006.3 5.0 se12.4 secs3.1 se9.3 secs0.6 se 16.7secs4.9 -6.2 12.4
10/2220:00:006.8 5.7 se12.5 secs3.0 se9.3 secs0.6 se 17.9secs5.8 -7.2 12.5
10/2219:00:008.2 7.4 se12.5 secs2.7 se9.2 secs1.2 se 6.0secs7.4 -9.3 12.5

 

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
18:00:00 (GMT) on 10/23
Combined Sea Height:9.2 ft
Dominant Period:14.0 secs
Wind Speed: 3.9 kts
Wind Gust: 5.8 kts
Wind Direction:130 degrees
Barometric Pressure:1018.0 mbs
Air Temperature: 61.0 degrees
Water Temperature:61.9 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)
10/2318:00:009.214.03.95.81301018.061.061.9
10/2317:00:009.214.03.97.81201017.961.361.7
10/2316:00:007.913.01.93.91001017.961.361.7
10/2315:00:009.511.01.93.90601017.761.361.5
10/2314:00:0010.514.01.95.81001017.161.261.5
10/2313:00:009.211.01.91.90501016.861.261.5
10/2312:00:0010.813.01.91.90201016.561.761.5
10/2311:00:009.513.03.95.80901016.161.361.5
10/2310:00:0010.513.01.93.93401016.762.261.7
10/2309:00:009.813.01.93.93301016.962.161.7
10/2308:00:0010.814.01.93.93001016.862.161.9
10/2307:00:009.513.01.95.82901016.862.162.1
10/2306:00:009.513.01.93.92601016.962.162.1
10/2305:00:009.213.03.95.80901017.161.962.2
10/2304:00:008.513.01.93.93301017.162.862.2
10/2303:00:008.213.03.97.83001017.162.462.1
10/2302:00:008.511.05.87.83001016.862.662.1
10/2301:00:008.212.03.95.83001016.762.662.2
10/2300:00:007.911.05.87.83001017.062.662.6
10/2223:00:007.213.05.87.83001017.163.062.6
10/2222:00:008.913.05.87.83101016.762.662.8
10/2221:00:008.512.05.87.83301017.162.262.6
10/2220:00:007.512.01.93.90101017.762.162.6
10/2219:00:007.913.03.95.83301018.161.762.1

 

000101171 ___0.242189
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