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| Buoy 46012 Half Moon Bay
Longitude = 122.70W Latitude = 37.45N
FAQs | | Current Swell & Surf Analysis | | Buoy 46012 | | 03:00:00 (GMT) on 05/08 | | Sea Height: | 2.3 ft | | Primary Swell Height: | 1.6 ft | | Primary Swell Period: | 14.2 secs | | Surf Height | 1.8 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) | | 05/08 | 03:00:00 | 2.3 | 1.6 se | 14.2 secs | 0.9 se | 18.0 secs | 1.1 se | 10.3secs | 1.8 -2.3 | 14.2 | | 05/08 | 02:00:00 | 2.4 | 1.8 se | 14.2 secs | 1.0 se | 18.2 secs | 1.0 se | 10.4secs | 2.0 -2.5 | 14.2 | | 05/08 | 01:00:00 | 2.4 | 1.6 se | 14.2 secs | 0.9 se | 18.0 secs | 1.3 se | 10.3secs | 1.8 -2.2 | 14.2 | | 05/08 | 00:00:00 | 2.4 | 1.7 se | 13.9 secs | 1.0 se | 18.7 secs | 1.1 se | 10.4secs | 1.9 -2.3 | 13.9 | | 05/07 | 03:00:00 | 2.5 | 1.5 se | 13.9 secs | 1.0 se | 10.3 secs | 1.0 se | 7.1secs | 1.7 -2.1 | 13.9 | | 05/07 | 02:00:00 | 2.6 | 1.8 se | 13.9 secs | 0.7 se | 17.6 secs | 0.9 se | 10.4secs | 2.1 -2.6 | 13.9 | | 05/07 | 01:00:00 | 2.3 | 1.4 se | 14.2 secs | 0.7 se | 17.9 secs | 0.7 se | 10.4secs | 1.6 -2.0 | 14.2 | | 05/07 | 00:00:00 | 2.5 | 1.6 se | 14.0 secs | 0.5 se | 17.3 secs | 0.8 se | 10.4secs | 1.8 -2.2 | 14.0 | | 05/06 | 21:00:00 | 2.7 | 1.6 se | 14.1 secs | 0.7 se | 17.4 secs | 0.9 se | 10.3secs | 1.8 -2.2 | 14.1 | | 05/06 | 06:00:00 | 4.3 | 3.0 se | 7.2 secs | 1.5 se | 13.0 secs | 0.0 se | 0.0secs | 1.7 -2.1 | 7.2 | | 05/06 | 05:00:00 | 4.7 | 3.5 se | 7.2 secs | 1.3 se | 12.8 secs | 0.0 se | 0.0secs | 2.0 -2.5 | 7.2 | | 05/06 | 04:00:00 | 4.7 | 3.4 se | 7.1 secs | 1.4 se | 13.0 secs | 0.0 se | 0.0secs | 2.0 -2.4 | 7.1 | | 05/06 | 03:00:00 | 4.7 | 3.5 se | 7.1 secs | 1.3 se | 12.9 secs | 0.0 se | 0.0secs | 2.0 -2.5 | 7.1 | | 05/05 | 18:00:00 | 4.9 | 3.5 se | 7.1 secs | 1.9 se | 13.0 secs | 0.2 se | 16.7secs | 2.0 -2.5 | 7.1 | | 05/05 | 17:00:00 | 4.9 | 3.6 se | 7.1 secs | 1.6 se | 13.8 secs | 0.0 se | 0.0secs | 2.0 -2.5 | 7.1 | | 05/05 | 16:00:00 | 5.5 | 3.9 se | 6.7 secs | 1.5 se | 13.0 secs | 0.9 se | 10.0secs | 2.1 -2.6 | 6.7 | | 05/05 | 15:00:00 | 5.2 | 3.7 se | 7.1 secs | 1.5 se | 14.0 secs | 0.0 se | 0.0secs | 2.1 -2.6 | 7.1 | | 05/05 | 13:00:00 | 4.7 | 1.7 se | 14.4 secs | 3.4 se | 6.6 secs | 0.9 se | 11.4secs | 2.0 -2.5 | 14.4 | | 05/05 | 12:00:00 | 5.2 | 1.9 se | 14.2 secs | 3.6 se | 6.3 secs | 1.0 se | 10.0secs | 2.2 -2.7 | 14.2 | | 05/05 | 11:00:00 | 4.6 | 2.0 se | 13.7 secs | 3.3 se | 6.3 secs | 0.8 se | 9.7secs | 2.2 -2.7 | 13.7 | | 05/05 | 10:00:00 | 4.4 | 1.5 se | 13.9 secs | 2.7 se | 6.7 secs | 1.0 se | 9.9secs | 1.7 -2.1 | 13.9 | | 05/05 | 09:00:00 | 4.2 | 1.6 se | 14.1 secs | 2.8 se | 6.3 secs | 1.0 se | 9.9secs | 1.8 -2.3 | 14.1 | | 05/05 | 08:00:00 | 3.4 | 2.0 se | 14.3 secs | 1.3 se | 9.1 secs | 2.0 se | 5.5secs | 2.3 -2.9 | 14.3 | | 05/05 | 05:00:00 | 2.7 | 1.8 se | 14.3 secs | 1.3 se | 11.2 secs | 1.1 se | 7.8secs | 2.0 -2.5 | 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 | | 02:00:00 (GMT) on 05/08 | | Combined Sea Height: | 3.0 ft | | Dominant Period: | 12.0 secs | | Wind Speed: | 3.9 kts | | Wind Gust: | 5.8 kts | | Wind Direction: | 290 degrees | | Barometric Pressure: | 1017.4 mbs | | Air Temperature: | 53.2 degrees | | Water Temperature: | 55.0 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) | | 05/08 | 02:00:00 | 3.0 | 12.0 | 3.9 | 5.8 | 290 | 1017.4 | 53.2 | 55.0 | | 05/08 | 01:00:00 | 3.0 | 13.0 | 3.9 | 7.8 | 290 | 1017.2 | 52.9 | 54.9 | | 05/08 | 00:00:00 | 3.0 | 12.0 | 3.9 | 5.8 | 290 | 1017.3 | 52.9 | 54.9 | | 05/07 | 23:00:00 | 3.0 | 13.0 | 3.9 | 5.8 | 250 | 1017.1 | 53.4 | 54.7 | | 05/07 | 02:00:00 | 3.9 | 12.0 | 5.8 | 7.8 | 110 | 1012.5 | 54.9 | 52.7 | | 05/07 | 01:00:00 | 3.6 | 12.0 | 7.8 | 9.8 | 120 | 1012.3 | 55.4 | 52.7 | | 05/07 | 00:00:00 | 3.6 | 13.0 | 7.8 | 9.8 | 120 | 1012.2 | 55.0 | 52.9 | | 05/06 | 23:00:00 | 3.9 | 13.0 | 9.8 | 11.7 | 170 | 1011.8 | 55.0 | 52.9 | | 05/06 | 20:00:00 | 4.3 | 6.0 | 11.7 | 13.7 | 160 | 1012.2 | 54.5 | 52.9 | | 05/06 | 05:00:00 | 6.9 | 7.0 | 21.4 | 27.3 | 160 | 1008.5 | 54.0 | 51.8 | | 05/06 | 04:00:00 | 7.5 | 7.0 | 21.4 | 27.3 | 150 | 1007.8 | 54.3 | 51.4 | | 05/06 | 03:00:00 | 7.5 | 7.0 | 23.4 | 29.2 | 160 | 1007.1 | 54.3 | 51.6 | | 05/06 | 02:00:00 | 7.5 | 7.0 | 23.4 | 27.3 | 160 | 1006.9 | 54.1 | 51.6 | | 05/05 | 17:00:00 | 7.5 | 7.0 | 21.4 | 25.4 | 170 | 1005.4 | 53.4 | 51.6 | | 05/05 | 16:00:00 | 7.9 | 7.0 | 21.4 | 25.4 | 170 | 1004.9 | 53.6 | 51.8 | | 05/05 | 15:00:00 | 8.5 | 7.0 | 21.4 | 25.4 | 170 | 1004.4 | 53.6 | 51.8 | | 05/05 | 14:00:00 | 8.2 | 7.0 | 23.4 | 27.3 | 170 | 1003.8 | 53.6 | 51.8 | | 05/05 | 13:00:00 | 0.0 | 0.0 | 23.4 | 27.3 | 170 | 1003.1 | 53.2 | 52.0 | | 05/05 | 12:00:00 | 7.5 | 6.0 | 23.4 | 29.2 | 160 | 1002.5 | 53.2 | 51.6 | | 05/05 | 11:00:00 | 7.9 | 7.0 | 21.4 | 27.3 | 160 | 1002.4 | 53.2 | 51.6 | | 05/05 | 10:00:00 | 7.2 | 7.0 | 21.4 | 27.3 | 160 | 1002.7 | 53.2 | 51.6 | | 05/05 | 09:00:00 | 6.9 | 7.0 | 21.4 | 25.4 | 160 | 1002.6 | 53.2 | 51.6 | | 05/05 | 08:00:00 | 6.9 | 6.0 | 19.5 | 23.4 | 170 | 1003.5 | 53.2 | 51.8 | | 05/05 | 07:00:00 | 6.2 | 5.0 | 23.4 | 29.2 | 160 | 1002.4 | 53.1 | 51.6 |
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