Station 46025 (LLNR 181) - Santa Monica Basin - 33NM WSW of Santa Monica, CA

Owned and maintained by National Data Buoy Center
3-meter foam buoy w/ seal cage
SCOOP payload
33.758 N 119.044 W (33°45'30" N 119°2'40" W)

Site elevation: sea level
Air temp height: 3.7 m above site elevation
Anemometer height: 4.1 m above site elevation
Barometer elevation: 2.7 m above mean sea level
Sea temp depth: 1.5 m below water line
Water depth: 890 m
Watch circle radius: 1291 yards

Latest NWS Marine Forecast

Important Notice to Mariners

Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships

Regional HF Radar Surface Current Observations

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Stations with recent data

Stations with no data in last 8 hours
(24 hours for tsunami stations)

Disclaimer

Buoy Camera Photos taken at 02/24/2021 1710 UTC. Click photo to enlarge.

Photos from Buoy Camera at station 46025

Photos are generally taken hourly during daylight operations.

Conditions at 46025 as of
(10:10 am PST)
1810 GMT on 02/24/2021:
Unit of Measure: Time Zone: 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):	ENE ( 70 deg true )
	Wind Speed (WSPD):	5.8 kts
	Wind Gust (GST):	9.7 kts
	Atmospheric Pressure (PRES):	30.07 in
	Air Temperature (ATMP):	56.8 °F
	Dew Point (DEWP):	54.5 °F
	Wind Speed at 10 meters (WSPD10M):	5.8 kts
	Wind Speed at 20 meters (WSPD20M):	7.8 kts
	Combined plot of Wind Speed, Gust, and Air Pressure

Supplemental Measurements
Highest 1-minute Wind Speed
Time (PST)		WSPD		WDIR
10:01 am		7.8 kts		-

Previous observations

MM	DD	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
02	24	10:00 am	ENE	5.8	7.8	-	-	-	-	30.07	+0.04	56.8	-	54.7	-	-	-
02	24	9:50 am	E	7.8	9.7	3.0	15	5.9	SW	30.06	-	56.7	-	54.7	-	-	-
02	24	9:40 am	E	7.8	9.7	3.0	-	5.9	SW	30.06	-	56.5	-	54.7	-	-	-
02	24	9:30 am	E	7.8	11.7	-	-	-	-	30.06	-	56.3	-	54.7	-	-	-
02	24	9:20 am	E	9.7	11.7	-	-	-	-	30.06	-	55.9	-	54.5	-	-	-
02	24	9:10 am	ESE	9.7	13.6	-	-	-	-	30.05	-	55.6	-	54.1	-	-	-
02	24	9:00 am	E	9.7	11.7	-	-	-	-	30.05	+0.04	55.6	-	54.1	-	-	-
02	24	8:50 am	E	9.7	13.6	2.6	15	5.1	S	30.05	-	55.8	-	54.3	-	-	-
02	24	8:40 am	ESE	9.7	13.6	2.6	-	5.1	S	30.05	-	55.8	-	54.3	-	-	-
02	24	8:30 am	ESE	11.7	13.6	-	-	-	-	30.04	-	55.8	-	54.5	-	-	-
02	24	8:20 am	ESE	9.7	13.6	-	-	-	-	30.04	-	55.8	-	54.7	-	-	-
02	24	8:10 am	E	11.7	13.6	-	-	-	-	30.04	-	55.6	-	54.5	-	-	-
02	24	8:00 am	ESE	11.7	13.6	-	-	-	-	30.04	+0.04	55.6	-	54.7	-	-	-
02	24	7:50 am	ESE	9.7	13.6	2.6	15	5.9	SSW	30.04	-	55.6	-	54.7	-	-	-
02	24	7:40 am	E	9.7	13.6	2.6	-	5.9	SSW	30.04	-	55.4	-	54.5	-	-	-
02	24	7:30 am	ESE	9.7	13.6	-	-	-	-	30.03	-	55.4	-	54.7	-	-	-
02	24	7:20 am	E	9.7	13.6	-	-	-	-	30.03	-	55.4	-	54.7	-	-	-
02	24	7:10 am	E	11.7	13.6	-	-	-	-	30.02	-	55.2	-	54.5	-	-	-
02	24	7:00 am	E	11.7	13.6	-	-	-	-	30.02	+0.03	54.9	-	54.1	-	-	-
02	24	6:50 am	E	11.7	13.6	2.6	15	6.2	SW	30.02	-	54.7	-	53.8	-	-	-
02	24	6:40 am	E	9.7	11.7	2.6	-	6.2	SW	30.01	-	55.4	-	54.1	-	-	-
02	24	6:30 am	E	9.7	11.7	-	-	-	-	30.01	-	56.7	-	55.4	-	-	-
02	24	6:20 am	E	7.8	9.7	-	-	-	-	30.01	-	57.0	-	55.8	-	-	-
02	24	6:10 am	ESE	5.8	7.8	-	-	-	-	30.01	-	57.0	-	55.8	-	-	-
02	24	6:00 am	ESE	5.8	7.8	-	-	-	-	30.01	+0.02	57.0	-	55.8	-	-	-
02	24	5:50 am	E	7.8	9.7	2.6	15	6.4	SSW	30.01	-	57.0	-	55.8	-	-	-
02	24	5:40 am	E	7.8	9.7	2.6	-	6.4	SSW	30.01	-	57.0	-	55.8	-	-	-
02	24	5:30 am	E	5.8	7.8	-	-	-	-	30.01	-	57.2	-	56.1	-	-	-
02	24	5:20 am	ESE	7.8	9.7	-	-	-	-	30.01	-	57.2	-	56.1	-	-	-
02	24	5:10 am	ESE	7.8	9.7	-	-	-	-	30.01	-	57.2	-	56.1	-	-	-
02	24	5:00 am	ESE	7.8	9.7	-	-	-	-	30.00	+0.00	57.4	-	56.1	-	-	-
02	24	4:50 am	ESE	7.8	9.7	2.3	15	6.3	SW	30.00	-	57.2	-	55.9	-	-	-
02	24	4:40 am	ESE	7.8	9.7	2.3	-	6.3	SW	30.00	-	57.2	-	55.9	-	-	-
02	24	4:30 am	E	9.7	11.7	-	-	-	-	30.00	-	57.2	-	55.9	-	-	-
02	24	4:20 am	E	9.7	11.7	-	-	-	-	29.99	-	57.4	-	56.1	-	-	-
02	24	4:10 am	E	9.7	11.7	-	-	-	-	30.00	-	57.6	-	56.3	-	-	-
02	24	4:00 am	ESE	9.7	11.7	-	-	-	-	29.99	-0.02	57.6	-	56.1	-	-	-
02	24	3:50 am	ESE	9.7	11.7	2.6	15	7.3	WSW	29.99	-	57.6	-	55.9	-	-	-
02	24	3:40 am	ESE	7.8	9.7	2.6	-	7.3	WSW	29.99	-	57.6	-	55.9	-	-	-
02	24	3:30 am	E	7.8	9.7	-	-	-	-	29.99	-	57.6	-	55.8	-	-	-
02	24	3:20 am	ESE	7.8	9.7	-	-	-	-	29.99	-	57.4	-	55.4	-	-	-
02	24	3:10 am	ESE	7.8	9.7	-	-	-	-	29.99	-	57.2	-	55.2	-	-	-
02	24	3:00 am	ESE	7.8	7.8	-	-	-	-	30.00	-0.01	57.4	-	55.4	-	-	-
02	24	2:50 am	ESE	7.8	7.8	2.3	15	7.1	SSW	30.00	-	57.4	-	55.4	-	-	-
02	24	2:40 am	ESE	5.8	7.8	2.3	-	7.1	SSW	30.00	-	57.2	-	55.2	-	-	-
02	24	2:30 am	ESE	5.8	7.8	-	-	-	-	30.00	-	57.2	-	55.2	-	-	-
02	24	2:20 am	ESE	5.8	7.8	-	-	-	-	30.00	-	57.2	-	55.2	-	-	-
02	24	2:10 am	SE	5.8	5.8	-	-	-	-	30.00	-	57.2	-	55.2	-	-	-
02	24	2:00 am	ESE	5.8	5.8	-	-	-	-	30.00	+0.00	57.4	-	55.4	-	-	-
02	24	1:50 am	ESE	5.8	5.8	2.6	10	7.1	W	30.00	-	57.4	-	55.4	-	-	-
02	24	1:40 am	ESE	5.8	5.8	2.6	-	7.1	W	30.01	-	57.4	-	55.4	-	-	-
02	24	1:30 am	SE	5.8	5.8	-	-	-	-	30.01	-	57.2	-	55.0	-	-	-
02	24	1:20 am	SE	3.9	5.8	-	-	-	-	30.01	-	57.4	-	55.2	-	-	-
02	24	1:10 am	SE	5.8	5.8	-	-	-	-	30.01	-	57.4	-	55.2	-	-	-
02	24	1:00 am	SE	5.8	5.8	-	-	-	-	30.01	+0.00	57.4	-	55.2	-	-	-
02	24	12:50 am	SE	5.8	5.8	2.6	15	7.8	SSW	30.01	-	57.6	-	55.4	-	-	-
02	24	12:40 am	SE	5.8	5.8	2.6	-	7.8	SSW	30.01	-	57.6	-	55.2	-	-	-
02	24	12:30 am	SSE	3.9	3.9	-	-	-	-	30.01	-	57.6	-	55.2	-	-	-
02	24	12:20 am	SSE	3.9	5.8	-	-	-	-	30.01	-	57.4	-	55.0	-	-	-
02	24	12:10 am	S	5.8	5.8	-	-	-	-	30.01	-	57.6	-	55.2	-	-	-
02	24	12:00 am	S	5.8	5.8	-	-	-	-	30.00	+0.00	57.6	-	55.2	-	-	-
02	23	11:50 pm	S	5.8	7.8	2.6	16	8.2	SSW	30.00	-	57.6	-	55.2	-	-	-
02	23	11:40 pm	SSW	5.8	7.8	2.6	-	8.2	SSW	30.00	-	57.6	-	55.2	-	-	-
02	23	11:30 pm	SSW	5.8	7.8	-	-	-	-	30.00	-	57.7	-	55.2	-	-	-
02	23	11:20 pm	SSW	5.8	7.8	-	-	-	-	30.00	-	57.7	-	55.2	-	-	-
02	23	11:10 pm	SSW	5.8	7.8	-	-	-	-	30.00	-	57.7	-	55.0	-	-	-
02	23	11:00 pm	SSW	5.8	7.8	-	-	-	-	30.00	+0.01	57.7	-	55.0	-	-	-
02	23	10:50 pm	SSW	5.8	7.8	3.0	16	7.7	SSW	30.01	-	57.9	-	55.2	-	-	-
02	23	10:40 pm	SSW	5.8	7.8	3.0	-	7.7	SSW	30.01	-	57.9	-	55.0	-	-	-
02	23	10:30 pm	SSW	5.8	7.8	-	-	-	-	30.01	-	57.9	-	55.0	-	-	-
02	23	10:20 pm	SSW	5.8	7.8	-	-	-	-	30.01	-	57.9	-	55.2	-	-	-
02	23	10:10 pm	SSW	5.8	5.8	-	-	-	-	30.01	-	58.1	-	55.4	-	-	-
02	23	10:00 pm	SSW	5.8	7.8	-	-	-	-	30.01	+0.03	58.1	-	55.2	-	-	-
02	23	9:50 pm	SSW	3.9	5.8	3.0	9	7.1	W	30.01	-	58.1	-	55.2	-	-	-
02	23	9:40 pm	SSW	3.9	5.8	3.0	-	7.1	W	30.01	-	58.3	-	55.0	-	-	-
02	23	9:30 pm	SSW	3.9	5.8	-	-	-	-	30.01	-	58.3	-	54.9	-	-	-
02	23	9:20 pm	SSW	3.9	5.8	-	-	-	-	30.01	-	58.3	-	54.7	-	-	-
02	23	9:10 pm	SSW	5.8	5.8	-	-	-	-	30.01	-	58.1	-	54.5	-	-	-
02	23	9:00 pm	SSW	3.9	5.8	-	-	-	-	30.01	+0.03	57.9	-	55.0	-	-	-
02	23	8:50 pm	SW	1.9	3.9	3.0	11	6.9	W	30.00	-	58.3	-	55.8	-	-	-
02	23	8:40 pm	SW	3.9	5.8	3.0	-	6.9	W	30.00	-	58.1	-	55.6	-	-	-
02	23	8:30 pm	S	3.9	5.8	-	-	-	-	29.99	-	58.1	-	55.6	-	-	-
02	23	8:20 pm	WSW	1.9	3.9	-	-	-	-	30.00	-	58.1	-	55.4	-	-	-
02	23	8:10 pm	WSW	3.9	3.9	-	-	-	-	29.99	-	58.1	-	55.2	-	-	-
02	23	8:00 pm	WSW	3.9	3.9	-	-	-	-	29.99	+0.02	58.1	-	55.0	-	-	-
02	23	7:50 pm	WSW	1.9	3.9	3.0	11	7.0	W	29.99	-	58.5	-	55.4	-	-	-
02	23	7:40 pm	WSW	1.9	3.9	3.0	-	7.0	W	29.99	-	58.1	-	54.7	-	-	-
02	23	7:30 pm	SSW	1.9	3.9	-	-	-	-	30.00	-	57.9	-	54.7	-	-	-
02	23	7:20 pm	S	3.9	3.9	-	-	-	-	29.98	-	57.7	-	54.7	-	-	-
02	23	7:10 pm	-	0.0	1.9	-	-	-	-	29.98	-	57.6	-	54.9	-	-	-
02	23	7:00 pm	-	0.0	0.0	-	-	-	-	29.98	+0.00	57.7	-	55.0	-	-	-
02	23	6:50 pm	-	0.0	1.9	3.0	10	7.2	W	29.98	-	57.9	-	55.0	-	-	-
02	23	6:40 pm	W	1.9	1.9	3.0	-	7.2	W	29.97	-	57.7	-	54.9	-	-	-
02	23	6:30 pm	NW	1.9	3.9	-	-	-	-	29.98	-	57.9	-	55.0	-	-	-
02	23	6:20 pm	W	1.9	3.9	-	-	-	-	29.98	-	57.7	-	54.9	-	-	-
02	23	6:10 pm	WNW	1.9	1.9	-	-	-	-	29.97	-	57.7	-	54.9	-	-	-
02	23	6:00 pm	W	1.9	1.9	-	-	-	-	29.97	-0.01	57.7	-	54.9	-	-	-
02	23	5:50 pm	W	1.9	3.9	3.3	9	7.7	W	29.98	-	57.9	-	55.0	-	-	-
02	23	5:40 pm	NW	3.9	3.9	3.3	-	7.7	W	29.98	-	58.3	-	55.6	-	-	-
02	23	5:30 pm	NW	3.9	5.8	-	-	-	-	29.98	-	58.5	-	55.4	-	-	-
02	23	5:20 pm	WNW	3.9	5.8	-	-	-	-	29.98	-	58.6	-	55.4	-	-	-
02	23	5:10 pm	WNW	3.9	5.8	-	-	-	-	29.98	-	59.2	-	55.6	-	-	-
02	23	5:00 pm	WNW	3.9	5.8	-	-	-	-	29.98	-0.02	59.2	-	55.8	-	-	-
02	23	4:50 pm	WNW	3.9	5.8	3.0	10	7.1	W	29.98	-	59.4	-	56.1	-	-	-
02	23	4:40 pm	WNW	3.9	5.8	3.0	-	7.1	W	29.98	-	59.4	-	56.1	-	-	-
02	23	4:30 pm	WNW	3.9	5.8	-	-	-	-	29.98	-	59.5	-	56.1	-	-	-
02	23	4:20 pm	WNW	3.9	5.8	-	-	-	-	29.98	-	59.5	-	56.1	-	-	-
02	23	4:10 pm	WNW	5.8	7.8	-	-	-	-	29.98	-	59.4	-	55.9	-	-	-
02	23	4:00 pm	W	5.8	7.8	-	-	-	-	29.98	-0.03	59.4	-	55.9	-	-	-
02	23	3:50 pm	W	5.8	7.8	3.3	11	7.4	W	29.98	-	59.4	-	56.1	-	-	-
02	23	3:40 pm	WNW	5.8	7.8	3.3	-	7.4	W	29.98	-	59.5	-	56.5	-	-	-
02	23	3:20 pm	WNW	3.9	5.8	-	-	-	-	29.99	-	59.9	-	56.7	-	-	-
02	23	3:10 pm	WNW	3.9	5.8	-	-	-	-	29.99	-	59.9	-	56.7	-	-	-
02	23	3:00 pm	W	3.9	5.8	-	-	-	-	29.99	-0.04	60.1	-	56.7	-	-	-
02	23	2:50 pm	SSW	1.9	3.9	3.0	10	7.2	W	29.98	-	60.3	-	56.8	-	-	-
02	23	2:40 pm	-	0.0	1.9	3.0	-	7.2	W	29.98	-	60.1	-	56.8	-	-	-
02	23	2:30 pm	-	0.0	1.9	-	-	-	-	29.99	-	60.1	-	57.0	-	-	-
02	23	2:20 pm	-	0.0	1.9	-	-	-	-	30.00	-	59.7	-	56.8	-	-	-
02	23	2:10 pm	NW	1.9	3.9	-	-	-	-	30.00	-	59.4	-	56.5	-	-	-
02	23	2:00 pm	NNW	1.9	3.9	-	-	-	-	30.00	-0.05	59.4	-	56.3	-	-	-
02	23	1:50 pm	-	0.0	1.9	2.6	16	7.7	SSW	30.00	-	59.7	-	56.7	-	-	-
02	23	1:40 pm	WNW	1.9	1.9	2.6	-	7.7	SSW	30.00	-	59.5	-	56.5	-	-	-
02	23	1:30 pm	WNW	1.9	1.9	-	-	-	-	30.00	-	59.2	-	56.1	-	-	-
02	23	1:20 pm	-	0.0	1.9	-	-	-	-	30.01	-	59.5	-	56.7	-	-	-
02	23	1:10 pm	NW	1.9	3.9	-	-	-	-	30.01	-	59.2	-	56.5	-	-	-
02	23	1:00 pm	-	0.0	1.9	-	-	-	-	30.01	-0.04	59.4	-	56.7	-	-	-
02	23	12:50 pm	S	3.9	7.8	2.3	10	7.2	W	30.01	-	59.2	-	56.5	-	-	-
02	23	12:40 pm	S	7.8	7.8	2.3	-	7.2	W	30.01	-	59.2	-	56.3	-	-	-
02	23	12:30 pm	S	5.8	7.8	-	-	-	-	30.01	-	59.2	-	55.9	-	-	-
02	23	12:20 pm	S	3.9	5.8	-	-	-	-	30.02	-	59.2	-	55.8	-	-	-
02	23	12:10 pm	SSE	3.9	3.9	-	-	-	-	30.02	-	59.2	-	55.8	-	-	-
02	23	12:00 pm	SSE	1.9	3.9	-	-	-	-	30.03	-0.03	59.2	-	55.8	-	-	-
02	23	11:50 am	S	3.9	3.9	2.0	11	6.6	WSW	30.03	-	59.2	-	55.8	-	-	-
02	23	11:40 am	S	3.9	3.9	2.0	-	6.6	WSW	30.03	-	59.2	-	55.8	-	-	-
02	23	11:30 am	SSW	1.9	3.9	-	-	-	-	30.04	-	59.0	-	55.6	-	-	-
02	23	11:20 am	S	3.9	5.8	-	-	-	-	30.04	-	58.8	-	55.2	-	-	-
02	23	11:10 am	S	3.9	3.9	-	-	-	-	30.04	-	59.0	-	55.2	-	-	-
02	23	11:00 am	-	0.0	1.9	-	-	-	-	30.05	+0.00	59.0	-	55.4	-	-	-
02	23	10:50 am	SSE	1.9	3.9	2.3	11	7.1	WSW	30.05	-	58.5	-	55.0	-	-	-
02	23	10:40 am	ESE	1.9	1.9	2.3	-	7.1	WSW	30.05	-	57.9	-	54.7	-	-	-
02	23	10:30 am	ENE	1.9	1.9	-	-	-	-	30.06	-	57.7	-	54.3	-	-	-
02	23	10:20 am	E	1.9	1.9	-	-	-	-	30.06	-	57.9	-	54.5	-	-	-
02	23	10:10 am	ESE	3.9	3.9	-	-	-	-	30.05	-	57.9	-	54.5	-	-	-
02	23	10:00 am	E	1.9	3.9	-	-	-	-	30.06	+0.03	57.9	-	54.1	-	-	-
02	23	9:50 am	E	1.9	3.9	2.3	11	7.3	WSW	30.06	-	57.9	-	54.0	-	-	-

Detailed Wave Summary
for 46025 as of (9:40 am PST)
1740 GMT on 02/24/2021:
These wave data are displayed in rounded times. Unit of Measure: Time Zone: 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):	3.0 ft
	Swell Height (SwH):	2.6 ft
	Swell Period (SwP):	14.8 sec
	Swell Direction (SwD):	SW
	Wind Wave Height (WWH):	1.0 ft
	Wind Wave Period (WWP):	2.9 sec
	Wind Wave Direction (WWD):	ESE
	Wave Steepness (STEEPNESS):	SWELL
	Average Wave Period (APD):	5.9 sec

Previous observations

MM	DD	TIME (PST)	WVHT ft	SwH ft	SwP sec	SwD	WWH ft	WWP sec	WWD	STEEPNESS	APD sec
02	24	8:40 am	2.6	2.0	14.8	S	1.3	2.7	ESE	N/A	5.1
02	24	7:40 am	2.6	2.3	14.8	SSW	1.3	5.0	WSW	SWELL	5.9
02	24	6:40 am	2.6	2.3	14.8	SW	1.0	4.5	WSW	SWELL	6.2
02	24	5:40 am	2.6	2.3	14.8	SSW	0.7	3.4	WSW	N/A	6.4
02	24	4:40 am	2.3	2.3	14.8	SW	0.7	3.6	WSW	N/A	6.3
02	24	3:40 am	2.6	2.3	14.8	WSW	0.7	3.7	W	N/A	7.3
02	24	2:40 am	2.3	2.3	14.8	SSW	0.7	3.8	WSW	N/A	7.1
02	24	1:40 am	2.6	2.6	10.0	W	0.7	3.4	SW	N/A	7.1
02	24	12:40 am	2.6	2.3	14.8	SSW	0.3	3.8	SW	N/A	7.8
02	23	11:40 pm	2.6	2.6	16.0	SSW	0.3	4.0	WSW	SWELL	8.2
02	23	10:40 pm	3.0	3.0	16.0	SSW	0.7	3.7	WSW	SWELL	7.7
02	23	9:40 pm	3.0	2.6	9.1	W	0.7	3.7	WSW	SWELL	7.1
02	23	8:40 pm	3.0	2.6	10.8	W	0.7	3.6	W	SWELL	6.9
02	23	7:40 pm	3.0	2.6	10.8	W	0.7	3.8	W	SWELL	7.0
02	23	6:40 pm	3.0	3.0	10.0	W	0.7	3.8	W	SWELL	7.2
02	23	5:40 pm	3.3	3.3	9.1	W	0.7	4.0	WSW	SWELL	7.7
02	23	4:40 pm	3.0	3.0	10.0	W	0.7	3.8	W	SWELL	7.1
02	23	3:40 pm	3.3	3.3	10.8	W	0.7	3.3	ENE	SWELL	7.4
02	23	2:40 pm	3.0	2.6	10.0	W	0.7	4.0	WNW	SWELL	7.2
02	23	1:40 pm	2.6	2.6	16.0	SSW	0.7	3.4	WSW	SWELL	7.7
02	23	12:40 pm	2.3	2.3	10.0	W	0.7	3.8	W	N/A	7.2
02	23	11:40 am	2.0	2.0	10.8	WSW	0.7	3.8	W	N/A	6.6
02	23	10:40 am	2.3	2.0	10.8	WSW	0.7	4.0	W	N/A	7.1

Plot of wave energy versus frequency (and period)

Description of Measurements

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 the current month, previous months, and previous 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.
Please refer to the NDBC data inventory for the data history of each station.