Station List

Station 46012 (LLNR 325) - HALF MOON BAY - 24NM SSW of San Francisco, CA Image indicating link to RSS feed of recent meteorological observations for station 46012

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

Previous data provided by Saildrone for this station are available at:
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

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Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station 46012

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Station 46012

Conditions at 46012 as of
(2:00 am PDT)
0900 GMT on 05/19/2026:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Wind Direction Wind Direction (WDIR): NW ( 320 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 9.7 kts
5-day plot - Wind Gust Wind Gust (GST): 13.6 kts
5-day plot - Wave Height Wave Height (WVHT): 6.2 ft
5-day plot - Dominant Wave Period Dominant Wave Period (DPD): 8 sec
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):30.01 in
5-day plot - Pressure Tendency Pressure Tendency (PTDY):+0.00 in ( Steady )
5-day plot - Air Temperature Air Temperature (ATMP): 51.4 °F
5-day plot - Water Temperature Water Temperature (WTMP): 50.5 °F
5-day plot - Dew Point Dew Point (DEWP): 48.2 °F
5-day plot - Wind Chill Wind Chill (CHILL): 47.5 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 13.6 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 15.5 kts
5-day plot - Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Previous observations
TIME
(PDT)		 5-day plot - Wind Direction
WDIR
 		 5-day plot - Wind Speed
WSPD
kts		 5-day plot - Wind Gust
GST
kts		 5-day plot - Wave Height
WVHT
ft		 5-day plot - Dominant Wave Period
DPD
sec		 5-day plot - Average Wave Period
APD
sec		 5-day plot - Mean Wave Direction
MWD
 		 5-day plot - Atmospheric Pressure
PRES
in		 5-day plot - Pressure Tendency
PTDY
in		 5-day plot - Air Temperature
ATMP
°F		 5-day plot - Water Temperature
WTMP
°F		 5-day plot - Dew Point
DEWP
°F		 5-day plot - Salinity
SAL
psu		 5-day plot - Visibility
VIS
nmi		 5-day plot - Tide (above MLLW)
TIDE
ft
2026-05-19 01:00 am NW 9.7 11.7 6.6 8--30.02+0.03 51.6 50.5 48.4---
2026-05-19 12:00 am W 13.6 15.5 6.2 8--30.01+0.02 52.0 50.5 48.4---
2026-05-18 11:00 pm W 9.7 13.6 6.2 8--30.01+0.03 52.0 50.5 48.2---
2026-05-18 10:00 pm NW 11.7 15.5 6.2 8--29.99+0.01 52.2- 48.2---
2026-05-18 09:00 pm--- 6.9 7----- 51.1----
2026-05-18 08:00 pm--- 6.9 7----- 51.1----
2026-05-18 07:00 pm--- 6.2 10----- 51.1----
2026-05-18 06:00 pm--- 5.6 10----- 51.4----
2026-05-18 05:00 pm--- 5.6 10----- 51.4----
2026-05-18 04:00 pm--- 5.6 11----- 51.3----
2026-05-18 03:00 pm--- 5.9 11----- 51.1----
2026-05-18 02:00 pm--- 5.9 10----- 51.1----
2026-05-18 01:00 pm--- 5.9 10----- 50.9----
2026-05-18 12:00 pm--- 6.2 10----- 50.5----
2026-05-18 11:00 am--- 6.9 10----- 50.4----
2026-05-18 10:00 am--- 6.2 9----- 50.2----
2026-05-18 09:00 am--- 6.9 10----- 50.2----
2026-05-18 08:00 am--- 6.9 10----- 50.2----
2026-05-18 07:00 am--- 7.5 10----- 50.0----
2026-05-18 06:00 am--- 7.5 10----- 50.0----
2026-05-18 05:00 am--- 8.9 10----- 50.0----
2026-05-18 04:00 am--- 10.2 11----- 50.2----
2026-05-18 03:00 am--- 8.9 10----- 50.2----
2026-05-18 02:00 am--- 9.8 11----- 50.2----
Wave Summary
for 46012 as of (2:00 am PDT)
0900 GMT on 05/19/2026:

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.

5-day plot - Significant Wave Height Significant Wave Height (WVHT): 6.2 ft
5-day plot - Wave Steepness Wave Steepness (STEEPNESS): STEEP
Previous observations
TIME
(PDT)		 5-day plot - Wave Height
WVHT
ft		 5-day plot - Swell Height
SwH
ft		 5-day plot - Swell Period
SwP
sec		 5-day plot - Swell Direction
SwD
 		 5-day plot - Wind Wave Height
WWH
ft		 5-day plot - Wind Wave Period
WWP
sec		 5-day plot - Wind Wave Direction
WWD
 		 5-day plot - Wave Steepness
STEEPNESS
 		 5-day plot - Average Wave Period
APD
sec
2026-05-19 01:00 am 6.6--N/A-- N/A AVERAGE-
2026-05-19 12:00 am 6.2--N/A-- N/A STEEP-
2026-05-18 11:00 pm 6.2--N/A-- N/A AVERAGE-
2026-05-18 10:00 pm 6.2--N/A-- N/A AVERAGE-
2026-05-18 09:00 pm 6.9--N/A-- N/A STEEP-
2026-05-18 08:00 pm 6.9--N/A-- N/A STEEP-
2026-05-18 07:00 pm 6.2--N/A-- N/A AVERAGE-
2026-05-18 06:00 pm 5.6--N/A-- N/A N/A-
2026-05-18 05:00 pm 5.6--N/A-- N/A N/A-
2026-05-18 04:00 pm 5.6--N/A-- N/A N/A-
2026-05-18 03:00 pm 5.9--N/A-- N/A N/A-
2026-05-18 02:00 pm 5.9--N/A-- N/A N/A-
2026-05-18 01:00 pm 5.9--N/A-- N/A N/A-
2026-05-18 12:00 pm 6.2--N/A-- N/A AVERAGE-
2026-05-18 11:00 am 6.6--N/A-- N/A N/A-
2026-05-18 10:00 am 6.2--N/A-- N/A AVERAGE-
2026-05-18 09:00 am 6.6--N/A-- N/A AVERAGE-
2026-05-18 08:00 am 6.9--N/A-- N/A AVERAGE-
2026-05-18 07:00 am 7.5--N/A-- N/A AVERAGE-
2026-05-18 06:00 am 7.5--N/A-- N/A AVERAGE-
2026-05-18 05:00 am 8.9--N/A-- N/A AVERAGE-
2026-05-18 04:00 am 10.2--N/A-- N/A AVERAGE-
2026-05-18 03:00 am 8.9--N/A-- N/A AVERAGE-
2026-05-18 02:00 am 9.8--N/A-- N/A AVERAGE-