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| Buoy 46012 Half Moon Bay
Longitude = 122.70W Latitude = 37.45N
FAQs | | Current Swell & Surf Analysis | | Buoy 46012 | | 20:00:00 (GMT) on 11/20 | | Sea Height: | 12.3 ft | | Primary Swell Height: | 9.2 ft | | Primary Swell Period: | 14.2 secs | | Surf Height | 10.5 ft |
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) | | 11/20 | 20:00:00 | 12.3 | 9.2 se | 14.2 secs | 4.5 se | 10.2 secs | 4.8 se | 6.6secs | 10.5 -13.1 | 14.2 | | 11/20 | 19:00:00 | 11.1 | 8.3 se | 14.1 secs | 4.5 se | 10.4 secs | 4.6 se | 5.9secs | 9.4 -11.7 | 14.1 | | 11/20 | 18:00:00 | 10.6 | 8.8 se | 14.2 secs | 3.7 se | 10.3 secs | 3.4 se | 5.5secs | 10.0 -12.5 | 14.2 | | 11/20 | 17:00:00 | 9.3 | 7.6 se | 14.3 secs | 4.3 se | 10.2 secs | 1.9 se | 7.2secs | 8.7 -10.8 | 14.3 | | 11/20 | 16:00:00 | 9.3 | 8.0 se | 14.3 secs | 3.9 se | 10.2 secs | 1.2 se | 6.8secs | 9.1 -11.4 | 14.3 | | 11/20 | 15:00:00 | 10.4 | 8.8 se | 14.2 secs | 4.9 se | 10.3 secs | 1.7 se | 7.2secs | 10.0 -12.5 | 14.2 | | 11/20 | 14:00:00 | 10.3 | 8.6 se | 14.4 secs | 5.1 se | 10.2 secs | 0.8 se | 20.0secs | 9.9 -12.3 | 14.4 | | 11/20 | 13:00:00 | 10.7 | 9.0 se | 14.3 secs | 3.9 se | 17.4 secs | 5.0 se | 10.3secs | 10.2 -12.8 | 14.3 | | 11/20 | 12:00:00 | 8.9 | 7.2 se | 14.2 secs | 2.9 se | 17.3 secs | 4.4 se | 10.1secs | 8.1 -10.2 | 14.2 | | 11/20 | 11:00:00 | 10.9 | 8.7 se | 14.2 secs | 3.7 se | 17.3 secs | 5.9 se | 10.2secs | 9.9 -12.4 | 14.2 | | 11/20 | 10:00:00 | 12.0 | 10.1 se | 14.0 secs | 3.4 se | 17.2 secs | 5.5 se | 10.3secs | 11.4 -14.2 | 14.0 | | 11/20 | 09:00:00 | 11.7 | 9.4 se | 14.2 secs | 3.6 se | 17.2 secs | 5.7 se | 10.1secs | 10.7 -13.4 | 14.2 | | 11/20 | 08:00:00 | 10.4 | 8.7 se | 12.7 secs | 2.5 se | 17.3 secs | 4.2 se | 9.3secs | 8.9 -11.1 | 12.7 | | 11/20 | 07:00:00 | 10.1 | 8.1 se | 14.1 secs | 5.2 se | 10.2 secs | 3.0 se | 17.2secs | 9.1 -11.4 | 14.1 | | 11/20 | 06:00:00 | 12.0 | 9.9 se | 14.1 secs | 3.6 se | 17.2 secs | 6.0 se | 10.3secs | 11.2 -14.0 | 14.1 | | 11/20 | 05:00:00 | 11.3 | 9.2 se | 14.1 secs | 5.5 se | 10.3 secs | 2.2 se | 7.2secs | 10.4 -13.0 | 14.1 | | 11/20 | 04:00:00 | 11.4 | 9.6 se | 14.0 secs | 5.3 se | 10.3 secs | 2.2 se | 7.3secs | 10.8 -13.5 | 14.0 | | 11/20 | 03:00:00 | 11.2 | 9.3 se | 14.1 secs | 3.5 se | 17.2 secs | 5.4 se | 10.3secs | 10.5 -13.1 | 14.1 | | 11/20 | 02:00:00 | 11.4 | 9.6 se | 14.0 secs | 5.5 se | 10.2 secs | 1.7 se | 6.7secs | 10.7 -13.4 | 14.0 | | 11/20 | 01:00:00 | 10.2 | 8.3 se | 14.1 secs | 3.0 se | 17.4 secs | 5.0 se | 10.2secs | 9.4 -11.7 | 14.1 | | 11/20 | 00:00:00 | 10.2 | 8.0 se | 14.3 secs | 5.4 se | 10.2 secs | 2.3 se | 7.2secs | 9.1 -11.4 | 14.3 | | 11/19 | 23:00:00 | 12.7 | 11.0 se | 14.2 secs | 5.5 se | 10.2 secs | 1.9 se | 6.8secs | 12.5 -15.6 | 14.2 | | 11/19 | 22:00:00 | 10.8 | 8.5 se | 14.2 secs | 5.9 se | 10.2 secs | 2.1 se | 6.8secs | 9.6 -12.0 | 14.2 | | 11/19 | 21:00:00 | 13.0 | 10.4 se | 14.3 secs | 7.0 se | 10.3 secs | 2.3 se | 7.2secs | 12.0 -14.9 | 14.3 |
Surf Height Scale| Size Scale (ft) | | >1 | 1-2 | 2-3 | 3-4 | 4-5 | 5-6 | 6-7 | 7-8 | 8-9 | 9-10 | 10-11 | 11-12 | 12-13 | 13-14 | 14-15 | 15-20 | 20-25 | 25-30 | 30-35 | 35-40 | 40-45 | 45+ |
Swell Period Scal| Period Scale (secs) | | 6.3 | 6.7 | 7.1 | 7.7 | 8.3 | 9.1 | 10 | 11.1 | 12.5 | 14.3 | 16.7 | 20 | 25 | 33.3 |
| Current Weather Conditions | | Buoy 46012 | | 20:00:00 (GMT) on 11/20 | | Combined Sea Height: | 15.7 ft | | Dominant Period: | 13.0 secs | | Wind Speed: | 13.7 kts | | Wind Gust: | 17.6 kts | | Wind Direction: | 210 degrees | | Barometric Pressure: | 0.0 mbs | | Air Temperature: | 53.8 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) | | 11/20 | 20:00:00 | 15.7 | 13.0 | 13.7 | 17.6 | 210 | 0.0 | 53.8 | 32.0 | | 11/20 | 19:00:00 | 13.1 | 14.0 | 11.7 | 15.6 | 220 | 0.0 | 52.5 | 32.0 | | 11/20 | 18:00:00 | 11.8 | 14.0 | 19.5 | 25.4 | 210 | 0.0 | 53.2 | 32.0 | | 11/20 | 17:00:00 | 11.5 | 14.0 | 25.4 | 31.2 | 170 | 0.0 | 54.5 | 32.0 | | 11/20 | 16:00:00 | 10.5 | 14.0 | 25.4 | 33.1 | 160 | 0.0 | 55.0 | 32.0 | | 11/20 | 15:00:00 | 10.2 | 14.0 | 23.4 | 29.2 | 160 | 0.0 | 54.7 | 32.0 | | 11/20 | 14:00:00 | 10.8 | 14.0 | 19.5 | 25.4 | 160 | 0.0 | 54.5 | 32.0 | | 11/20 | 13:00:00 | 10.5 | 14.0 | 17.6 | 21.4 | 170 | 0.0 | 54.5 | 32.0 | | 11/20 | 12:00:00 | 10.8 | 14.0 | 13.7 | 17.6 | 180 | 0.0 | 54.0 | 32.0 | | 11/20 | 11:00:00 | 9.2 | 14.0 | 13.7 | 17.6 | 160 | 0.0 | 53.8 | 32.0 | | 11/20 | 10:00:00 | 11.2 | 14.0 | 9.8 | 13.7 | 160 | 0.0 | 53.1 | 32.0 | | 11/20 | 09:00:00 | 12.1 | 13.0 | 7.8 | 11.7 | 170 | 0.0 | 53.1 | 32.0 | | 11/20 | 08:00:00 | 11.8 | 14.0 | 5.8 | 7.8 | 170 | 0.0 | 52.3 | 32.0 | | 11/20 | 07:00:00 | 10.5 | 14.0 | 3.9 | 5.8 | 230 | 0.0 | 52.3 | 32.0 | | 11/20 | 06:00:00 | 10.5 | 14.0 | 3.9 | 5.8 | 290 | 0.0 | 52.3 | 32.0 | | 11/20 | 05:00:00 | 12.1 | 14.0 | 7.8 | 9.8 | 290 | 0.0 | 52.3 | 32.0 | | 11/20 | 04:00:00 | 11.5 | 14.0 | 5.8 | 9.8 | 310 | 0.0 | 52.3 | 32.0 | | 11/20 | 03:00:00 | 11.5 | 14.0 | 9.8 | 11.7 | 330 | 0.0 | 52.3 | 32.0 | | 11/20 | 02:00:00 | 11.5 | 14.0 | 9.8 | 11.7 | 330 | 0.0 | 52.5 | 32.0 | | 11/20 | 01:00:00 | 11.5 | 13.0 | 9.8 | 11.7 | 320 | 0.0 | 52.5 | 32.0 | | 11/20 | 00:00:00 | 10.5 | 14.0 | 9.8 | 11.7 | 300 | 0.0 | 52.5 | 32.0 | | 11/19 | 23:00:00 | 10.5 | 14.0 | 9.8 | 13.7 | 310 | 0.0 | 53.2 | 32.0 | | 11/19 | 22:00:00 | 13.1 | 14.0 | 9.8 | 11.7 | 340 | 0.0 | 53.4 | 32.0 | | 11/19 | 21:00:00 | 11.2 | 14.0 | 11.7 | 15.6 | 330 | 0.0 | 53.1 | 32.0 |
| 000056266 ___0.647145 | |
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