View the latest observations near Central Pacific Tropical Storm Pena.
Station 46012 (LLNR 325) - HALF MOON BAY - 24NM SSW of San Francisco, CA 
Owned and maintained by National Data Buoy Center
Data provided by @Orchard
Uncrewed Surface Vehicle
DataXplorer
37.356 N 122.881 W (37°21'20" N 122°52'51" W)
Site elevation: sea level
Air temp height: 1.3 m above site elevation
Anemometer height: 1.3 m above site elevation
Barometer elevation: 1.3 m above mean sea level
Sea temp depth: 0.2 m below MLLW
Water depth: 208.8 m
Watch circle radius: 20253.7 yards
SD-1073 (1801589) -- 0000Z, 9/1/23 to 2359Z, 4/25/24 and 2000Z, 5/8/25 to 0000Z, 8/4/25
SD-1077 (1801593) -- 1200Z, 7/27/24 to 1959Z, 5/8/25
SD-1063 (1801583) -- 0000Z, 4/26/24 to 0330Z, 7/24/24.
Stations with recent data
Stations with no data in last 8 hours(24 hours for tsunami stations)
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Click on the graph icon in the table below to see a time series plot of the last five days of that observation. | |
 Wind Direction (WDIR): | NW ( 320 deg true ) |
| Wind Speed (WSPD): | 13.6 kts |
| Wind Gust (GST): | 17.5 kts |
| Wave Height (WVHT): | 7.5 ft |
| Dominant Wave Period (DPD): | 13 sec |
| Atmospheric Pressure (PRES): | 30.13 in |
| Pressure Tendency (PTDY): | +0.00 in ( Steady ) |
| Air Temperature (ATMP): | 63.5 °F |
| Water Temperature (WTMP): | 66.4 °F |
| Dew Point (DEWP): | 59.5 °F |
| Wind Speed at 10 meters (WSPD10M): | 17.5 kts |
| Wind Speed at 20 meters (WSPD20M): | 19.4 kts |
| Combined plot of Wind Speed, Gust, and Air Pressure |
|
| TIME (PST) |
WDIR |
WSPD kts |
GST kts |
WVHT ft |
DPD sec |
APD sec |
MWD |
PRES in |
PTDY in |
ATMP °F |
WTMP °F |
DEWP °F |
SAL psu |
VIS nmi |
TIDE ft |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-11-08 01:00 am | NW | 11.7 | 15.5 | 7.9 | 13 | - | - | 30.13 | -0.01 | 63.5 | 66.4 | 59.7 | - | - | - |
| 2026-11-08 12:00 am | NW | 11.7 | 15.5 | 9.2 | 14 | - | - | 30.13 | +0.00 | 62.8 | 66.6 | 59.5 | - | - | - |
| 2026-11-07 11:00 pm | NW | 11.7 | 15.5 | 8.2 | 14 | - | - | 30.13 | +0.01 | 62.4 | 66.6 | 59.7 | - | - | - |
| 2026-11-07 10:00 pm | NW | 15.5 | 19.4 | 8.2 | 14 | - | - | 30.14 | +0.03 | 62.8 | 66.4 | 60.4 | - | - | - |
| 2026-11-07 09:00 pm | NW | 17.5 | 21.4 | 8.2 | 14 | - | - | 30.13 | +0.04 | 63.3 | 66.2 | 60.4 | - | - | - |
| 2026-11-07 08:00 pm | WNW | 13.6 | 17.5 | 9.8 | 14 | - | - | 30.12 | +0.02 | 63.3 | 65.1 | 59.7 | - | - | - |
| 2026-11-07 07:00 pm | WNW | 7.8 | 11.7 | 9.2 | 15 | - | - | 30.11 | +0.00 | 63.0 | 64.8 | 59.2 | - | - | - |
| 2026-11-07 06:00 pm | WNW | 5.8 | 7.8 | 9.2 | 15 | - | - | 30.09 | -0.01 | 63.0 | 64.8 | 59.2 | - | - | - |
| 2026-11-07 05:00 pm | NW | 7.8 | 11.7 | 8.5 | 15 | - | - | 30.10 | +0.00 | 63.3 | 64.9 | 59.7 | - | - | - |
| 2026-11-07 04:00 pm | WNW | 9.7 | 13.6 | 8.5 | 13 | - | - | 30.10 | +0.01 | 63.9 | 64.9 | 60.3 | - | - | - |
| 2026-11-07 03:00 pm | WNW | 11.7 | 13.6 | 7.9 | 14 | - | - | 30.10 | +0.01 | 64.0 | 65.1 | 60.3 | - | - | - |
| 2026-11-07 02:00 pm | WNW | 9.7 | 13.6 | 8.2 | 14 | - | - | 30.09 | +0.01 | 64.4 | 65.3 | 60.3 | - | - | - |
| 2026-11-07 01:00 pm | WNW | 5.8 | 9.7 | 7.5 | 13 | - | - | 30.09 | +0.01 | 63.9 | 65.5 | 60.1 | - | - | - |
| 2026-11-07 12:00 pm | WNW | 3.9 | 5.8 | 7.5 | 13 | - | - | 30.09 | +0.01 | 63.9 | 65.7 | 59.2 | - | - | - |
| 2026-11-07 11:00 am | SSW | 1.9 | 3.9 | 7.5 | 14 | - | - | 30.08 | +0.02 | 64.4 | 65.3 | 59.0 | - | - | - |
| 2026-11-07 10:00 am | S | 1.9 | 3.9 | 9.2 | 15 | - | - | 30.08 | +0.04 | 63.9 | 64.9 | 58.8 | - | - | - |
| 2026-11-07 09:00 am | S | 5.8 | 7.8 | 9.8 | 15 | - | - | 30.07 | +0.03 | 62.4 | 64.8 | 59.0 | - | - | - |
| 2026-11-07 08:00 am | NW | 7.8 | 9.7 | 7.9 | 14 | - | - | 30.07 | +0.02 | 62.2 | 64.9 | 59.7 | - | - | - |
| 2026-11-07 07:00 am | NW | 7.8 | 11.7 | 8.9 | 14 | - | - | 30.05 | -0.01 | 62.2 | 64.9 | 59.9 | - | - | - |
| 2026-11-07 06:00 am | NW | 7.8 | 11.7 | 7.9 | 14 | - | - | 30.04 | -0.02 | 63.1 | 64.9 | 60.3 | - | - | - |
| 2026-11-07 05:00 am | NNW | 9.7 | 13.6 | 7.9 | 15 | - | - | 30.05 | -0.01 | 63.5 | 64.9 | 60.4 | - | - | - |
| 2026-11-07 04:00 am | NNW | 11.7 | 13.6 | 7.5 | 13 | - | - | 30.06 | -0.01 | 63.7 | 64.9 | 60.8 | - | - | - |
| 2026-11-07 03:00 am | NW | 11.7 | 13.6 | 7.2 | 13 | - | - | 30.07 | +0.00 | 64.0 | 64.9 | 61.0 | - | - | - |
|
These wave data are displayed in rounded times. Click on the graph icon in the table below to see a time series plot of the last five days of that observation. | |
| Significant Wave Height (WVHT): | 7.5 ft |
| TIME (PST) |
WVHT ft |
SwH ft |
SwP sec |
SwD |
WWH ft |
WWP sec |
WWD |
STEEPNESS |
APD sec |
|---|---|---|---|---|---|---|---|---|---|
| 2026-11-08 01:00 am | 7.9 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-08 12:00 am | 9.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 11:00 pm | 8.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 10:00 pm | 8.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 09:00 pm | 8.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 08:00 pm | 9.8 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 07:00 pm | 9.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 06:00 pm | 9.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 05:00 pm | 8.5 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 04:00 pm | 8.5 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 03:00 pm | 7.9 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 02:00 pm | 8.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 01:00 pm | 7.5 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 12:00 pm | 7.5 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 11:00 am | 7.5 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 10:00 am | 9.2 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 09:00 am | 9.8 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 08:00 am | 7.9 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 07:00 am | 8.9 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 06:00 am | 7.9 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 05:00 am | 7.9 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 04:00 am | 7.5 | - | - | N/A | - | - | N/A | N/A | - |
| 2026-11-07 03:00 am | 7.2 | - | - | N/A | - | - | N/A | N/A | - |
Links which are specific to this station are listed below:
Real Time Data in tabular form for the last forty-five days.
Historical Data & Climatic Summaries for quality controlled data for prior months and years.
The weekly status report and the weekly maintenance report also provide valuable station information.
Note that the payload types and the station locations occasionally change.
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