Station 44020 (LLNR 13700) - NANTUCKET SOUND

Owned and maintained by National Data Buoy Center
3-meter discus buoy
SCOOP payload
41.493 N 70.279 W (41°29'35" N 70°16'43" W)

Site elevation: sea level
Air temp height: 4 m above site elevation
Anemometer height: 4 m above site elevation
Barometer elevation: 2.5 m above mean sea level
Sea temp depth: 1 m below water line
Water depth: 14.3 m
Watch circle radius: 102 yards

Caution: Right whales may be active in northeast waters year-round. NOAA recommends vessels reduce speeds below 10 knots, when consistent with safe navigation. For latest sightings, go to: https://www.nefsc.noaa.gov/psb/surveys/

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Important Notice to Mariners

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(24 hours for tsunami stations)

Disclaimer

Buoy Camera Photos taken at 07/23/2019 0910 UTC. Click photo to enlarge.

Photos from Buoy Camera at station 44020

Photos are generally taken hourly during daylight operations.

Conditions at 44020 as of
(4:50 am EDT)
0850 GMT on 07/23/2019:
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):	NW ( 310 deg true )
	Wind Speed (WSPD):	7.8 kts
	Wind Gust (GST):	9.7 kts
	Wave Height (WVHT):	1.0 ft
	Dominant Wave Period (DPD):	3 sec
	Average Period (APD):	3.2 sec
	Mean Wave Direction (MWD):	WSW ( 244 deg true )
	Air Temperature (ATMP):	72.5 °F
	Water Temperature (WTMP):	75.7 °F
	Dew Point (DEWP):	69.6 °F
	Wind Speed at 10 meters (WSPD10M):	9.7 kts
	Wind Speed at 20 meters (WSPD20M):	9.7 kts
	Combined plot of Wind Speed, Gust, and Air Pressure

Supplemental Measurements
Highest 1-minute Wind Speed
Time (EDT)		WSPD		WDIR
4:43 am		9.7 kts		-

Previous observations

MM	DD	TIME (EDT)	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
07	23	4:30 am	NW	7.8	11.7	-	-	-	-	-	-	72.7	75.7	70.0	-	-	-
07	23	4:20 am	WNW	7.8	11.7	-	-	-	-	-	-	72.7	75.7	70.0	-	-	-
07	23	4:10 am	WNW	9.7	11.7	-	-	-	-	-	-	72.7	-	70.0	-	-	-
07	23	4:00 am	-	9.7	11.7	-	-	-	-	29.75	+0.03	-	75.7	-	-	-	-
07	23	3:50 am	WNW	11.7	15.5	1.3	-	2.8	WSW	-	-	73.2	-	70.7	-	-	-
07	23	3:40 am	-	11.7	13.6	1.3	-	2.8	WSW	29.74	-	-	-	-	-	-	-
07	23	3:20 am	-	13.6	15.5	-	-	-	-	29.74	-	-	75.7	-	-	-	-
07	23	3:10 am	W	13.6	17.5	-	-	-	-	-	-	72.5	-	70.3	-	-	-
07	23	2:40 am	-	-	-	1.0	2	2.7	NE	-	-	-	75.7	-	-	-	-
07	23	1:40 am	-	13.6	15.5	1.0	-	3.0	SSE	29.71	-	-	-	-	-	-	-
07	23	1:30 am	SSW	13.6	15.5	-	-	-	-	-	-	72.9	-	71.4	-	-	-
07	23	1:20 am	-	11.7	13.6	-	-	-	-	29.72	-	-	75.9	-	-	-	-
07	23	1:00 am	SSW	9.7	13.6	-	-	-	-	-	-	73.2	-	71.8	-	-	-
07	23	12:40 am	-	9.7	11.7	1.0	-	3.0	ESE	29.71	-	-	-	-	-	-	-
07	23	12:30 am	S	9.7	11.7	1.0	-	3.0	ESE	-	-	73.8	75.6	72.1	-	-	-
07	23	12:20 am	S	7.8	9.7	-	-	-	-	-	-	74.1	-	72.5	-	-	-
07	22	11:40 pm	-	-	-	1.0	3	3.1	ESE	-	-	-	75.2	-	-	-	-
07	22	11:20 pm	S	7.8	9.7	-	-	-	-	-	-	74.8	-	73.2	-	-	-
07	22	11:00 pm	-	7.8	11.7	-	-	-	-	29.75	-0.02	-	-	-	-	-	-
07	22	10:40 pm	-	-	-	1.3	3	3.0	E	-	-	-	75.2	-	-	-	-
07	22	10:20 pm	-	9.7	19.4	-	-	-	-	29.76	-	-	75.4	-	-	-	-
07	22	9:40 pm	-	-	-	1.6	3	2.8	ESE	-	-	-	75.4	-	-	-	-
07	22	9:20 pm	ESE	15.5	19.4	-	-	-	-	-	-	71.4	75.4	70.2	-	-	-
07	22	9:00 pm	-	13.6	15.5	-	-	-	-	29.77	-	-	-	-	-	-	-
07	22	8:40 pm	-	-	-	1.0	3	2.7	ENE	-	-	-	75.7	-	-	-	-
07	22	8:30 pm	E	13.6	17.5	-	-	-	-	-	-	72.0	-	70.5	-	-	-
07	22	8:20 pm	E	15.5	19.4	-	-	-	-	-	-	72.0	-	70.3	-	-	-
07	22	8:10 pm	E	17.5	19.4	-	-	-	-	-	-	72.1	75.9	70.5	-	-	-
07	22	8:00 pm	-	15.5	17.5	-	-	-	-	29.77	-0.03	-	-	-	-	-	-
07	22	7:40 pm	-	-	-	1.3	3	2.7	NE	-	-	-	76.3	-	-	-	-
07	22	7:10 pm	E	13.6	15.5	-	-	-	-	-	-	72.3	-	70.3	-	-	-
07	22	6:50 pm	E	15.5	17.5	1.0	-	2.9	ENE	-	-	73.0	-	70.3	-	-	-
07	22	6:40 pm	-	-	-	1.0	3	2.9	ENE	-	-	-	76.5	-	-	-	-
07	22	6:30 pm	E	13.6	15.5	-	-	-	-	-	-	72.9	-	70.3	-	-	-
07	22	6:10 pm	E	11.7	13.6	-	-	-	-	-	-	73.2	-	70.3	-	-	-
07	22	5:40 pm	-	11.7	13.6	1.3	-	2.8	ENE	29.80	-	-	-	-	-	-	-
07	22	5:20 pm	ENE	15.5	17.5	-	-	-	-	-	-	73.8	-	70.7	-	-	-
07	22	5:10 pm	E	13.6	17.5	-	-	-	-	-	-	74.1	-	70.9	-	-	-
07	22	5:00 pm	-	11.7	15.5	-	-	-	-	29.80	-	-	77.2	-	-	-	-
07	22	4:40 pm	-	-	-	1.0	5	3.3	E	-	-	-	77.2	-	-	-	-
07	22	4:20 pm	-	7.8	11.7	-	-	-	-	29.82	-	-	-	-	-	-	-
07	22	4:00 pm	ENE	3.9	5.8	-	-	-	-	-	-	75.6	76.8	70.9	-	-	-
07	22	3:40 pm	NE	5.8	7.8	0.7	-	3.6	-	-	-	75.4	-	71.1	-	-	-
07	22	3:30 pm	NE	7.8	9.7	-	-	-	-	-	-	75.4	-	70.9	-	-	-
07	22	3:10 pm	NNE	7.8	9.7	-	-	-	-	-	-	75.4	76.8	70.5	-	-	-
07	22	3:00 pm	N	9.7	11.7	-	-	-	-	-	-	74.8	-	70.9	-	-	-
07	22	2:40 pm	-	7.8	9.7	0.7	-	3.2	-	29.84	-	-	-	-	-	-	-
07	22	2:10 pm	N	11.7	15.5	-	-	-	-	-	-	74.7	-	70.5	-	-	-
07	22	1:40 pm	NNW	5.8	9.7	1.0	-	3.7	E	-	-	77.9	-	72.3	-	-	-
07	22	1:30 pm	N	7.8	9.7	-	-	-	-	-	-	77.9	75.9	72.1	-	-	-
07	22	1:20 pm	-	3.9	5.8	-	-	-	-	29.83	-	-	-	-	-	-	-
07	22	12:40 pm	-	-	-	1.0	5	3.2	ESE	-	-	-	75.7	-	-	-	-
07	22	12:00 pm	-	3.9	3.9	-	-	-	-	29.85	+0.00	-	-	-	-	-	-
07	22	11:40 am	-	-	-	1.0	4	3.2	SSW	-	-	-	75.7	-	-	-	-
07	22	11:10 am	N	3.9	5.8	-	-	-	-	-	-	77.7	75.6	69.4	-	-	-
07	22	11:00 am	-	1.9	1.9	-	-	-	-	29.85	+0.02	-	-	-	-	-	-
07	22	10:40 am	-	3.9	5.8	1.0	-	3.0	SSE	29.85	-	-	-	-	-	-	-
07	22	10:20 am	N	5.8	5.8	-	-	-	-	-	-	76.8	-	69.3	-	-	-
07	22	10:00 am	-	7.8	7.8	-	-	-	-	29.85	+0.02	-	75.4	-	-	-	-
07	22	9:40 am	-	-	-	0.7	-	3.0	-	-	-	-	75.2	-	-	-	-
07	22	9:30 am	N	5.8	7.8	-	-	-	-	-	-	76.3	-	69.3	-	-	-
07	22	9:20 am	-	5.8	7.8	-	-	-	-	-	-	-	-	-	-	-	-
07	22	9:10 am	N	7.8	9.7	-	-	-	-	-	-	76.3	-	69.1	-	-	-
07	22	9:00 am	-	7.8	9.7	-	-	-	-	29.85	-	-	75.2	-	-	-	-
07	22	8:40 am	-	-	-	1.0	3	2.9	NNW	-	-	-	75.0	-	-	-	-
07	22	8:20 am	-	7.8	7.8	-	-	-	-	-	-	-	-	-	-	-	-
07	22	8:00 am	N	7.8	9.7	-	-	-	-	-	-	76.6	-	69.1	-	-	-
07	22	7:40 am	-	9.7	11.7	0.7	-	2.7	-	-	-	-	-	-	-	-	-
07	22	7:30 am	N	11.7	13.6	-	-	-	-	-	-	76.8	-	68.0	-	-	-
07	22	7:20 am	N	11.7	13.6	-	-	-	-	29.84	-	76.8	75.6	68.0	-	-	-
07	22	7:00 am	N	9.7	11.7	-	-	-	-	29.83	-	76.8	75.7	68.4	-	-	-
07	22	6:50 am	N	9.7	11.7	0.7	-	3.0	-	-	-	77.0	-	68.2	-	-	-
07	22	6:40 am	N	7.8	11.7	0.7	-	3.0	-	-	-	77.2	-	68.9	-	-	-
07	22	6:30 am	NNW	7.8	9.7	-	-	-	-	-	-	77.2	75.9	69.3	-	-	-
07	22	6:20 am	-	7.8	7.8	-	-	-	-	29.83	-	-	75.9	-	-	-	-
07	22	6:10 am	NNW	7.8	9.7	-	-	-	-	-	-	77.0	-	69.1	-	-	-
07	22	5:50 am	NW	7.8	7.8	0.7	-	2.8	-	-	-	77.2	76.1	69.4	-	-	-
07	22	5:40 am	NW	7.8	9.7	-	-	-	-	-	-	77.4	-	69.3	-	-	-
07	22	5:20 am	-	7.8	7.8	-	-	-	-	29.82	-	-	76.1	-	-	-	-

Detailed Wave Summary
for 44020 as of (4:40 am EDT)
0840 GMT on 07/23/2019:
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):	1.0 ft
	Swell Height (SwH):	0.7 ft
	Swell Period (SwP):	6.2 sec
	Swell Direction (SwD):	SSE
	Wind Wave Height (WWH):	1.0 ft
	Wind Wave Period (WWP):	2.9 sec
	Wind Wave Direction (WWD):	WSW
	Average Wave Period (APD):	3.2 sec

Previous observations

MM	DD	TIME (EDT)	WVHT ft	SwH ft	SwP sec	SwD	WWH ft	WWP sec	WWD	STEEPNESS	APD sec
07	23	3:40 am	1.3	0.3	6.2	SSE	1.0	2.6	WSW	N/A	2.8
07	23	2:40 am	1.0	0.3	5.9	SSE	1.0	2.2	NE	N/A	2.7
07	23	1:40 am	1.0	0.3	5.6	S	1.0	2.7	SSE	N/A	3.0
07	23	12:40 am	1.0	-	-	-	-	-	-	N/A	3.0
07	22	11:40 pm	1.0	0.3	5.3	E	1.0	2.9	ESE	N/A	3.1
07	22	10:40 pm	1.3	0.3	5.6	ESE	1.3	3.1	E	N/A	3.0
07	22	9:40 pm	1.6	0.3	7.1	S	1.6	2.6	ESE	N/A	2.8
07	22	8:40 pm	1.0	0.3	6.7	E	1.0	2.7	ENE	N/A	2.7
07	22	7:40 pm	1.3	0.3	5.6	ESE	1.0	2.7	NE	N/A	2.7
07	22	6:40 pm	1.0	0.3	5.6	E	1.0	2.7	ENE	N/A	2.9
07	22	5:40 pm	1.3	0.3	6.2	ESE	1.3	2.6	ENE	N/A	2.8
07	22	4:40 pm	1.0	0.7	4.5	E	0.7	2.5	E	N/A	3.3
07	22	3:40 pm	0.7	-	-	-	-	-	-	N/A	3.6
07	22	2:40 pm	0.7	-	-	-	-	-	-	N/A	3.2
07	22	1:40 pm	1.0	0.7	4.5	E	0.7	4.0	SSW	N/A	3.7
07	22	12:40 pm	1.0	0.3	5.0	ESE	0.7	3.0	SSE	N/A	3.2
07	22	11:40 am	1.0	0.7	5.3	SE	0.7	3.8	SSW	N/A	3.2
07	22	10:40 am	1.0	0.7	5.6	SE	0.7	2.4	SSE	N/A	3.0
07	22	9:40 am	0.7	-	-	-	-	-	-	N/A	3.0
07	22	8:40 am	1.0	0.3	5.9	ESE	1.0	2.7	NNW	N/A	2.9
07	22	7:40 am	0.7	-	-	-	-	-	-	N/A	2.7
07	22	6:40 am	0.7	-	-	-	-	-	-	N/A	3.0
07	22	5:40 am	0.7	-	-	-	-	-	-	N/A	2.8

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.