NANTUCKET SOUND (44020)

Conditions for Saturday

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Weekly
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Marine Data Graph

Current Weather/Wave Observations

Air Temperature: 64° F
Humidity: 82
Wind direction (W Dir): East (95 - 104 Degrees)
Wind Speed (W Spd): 13.6 kts (15.7 mph)
Wind Gust (W Spd): 15.6 kts (17.9 mph)
Dominant Wave Period (DWP): 3 sec
Dominant Wave Height (DWH): 0.98 ft
Dominant Wave Range (DWR): exactly 1.0 ft
Wind Wave Period (WWP): 3 sec
Wind Wave Height (WWH): 1.64 ft
Wind Wave Range (WWR): 0.82 - 2.46 ft
Atmospheric Pressure (AP): 30.13 in

Updated: 3:50 PM EDT on July 21, 2018

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General Information

Location: 41.443 North -70.187 West
Buoy Type: 3-meter discus buoy
Buoy Hull: 3D41
Payload: ARES 4.4 payload
Owned by: NDBC
Windspeed: Measured by obtained from anemometer
Sea Surface: Measured by Intake
Note: 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: http://rwhalesightings.nefsc.noaa.gov/

Weather and Wave Data

Time Temp Humidity Wind Dominant Wave Wind Wave Pressure
  Air
(°F)
Water
(°F)
  Dir Speed
(kts)
Speed
(mph)
Period
(sec)
Height
(ft)
Range
(ft)
Period
(sec)
Height
(ft)
Range
(ft)
Atmo.
(in)
Tend.
(in)
20:10 69 75 51 South 5.8 6.7 - - - 30.16 -
20:30 69 75 49 South 3.9 4.5 - - - 30.16 -
20:50 69 75 51 South 5.8 6.7 0.66 exactly 0.7 - - - 30.16 -
21:20 69 75 51 SE 1.9 2.2 - - - 30.17 -
21:30 69 75 51 SE 1.9 2.2 - - - 30.17 -
21:40 69 75 52 SE 1.9 2.2 - - - 30.17 -
21:50 69 75 51 SE 1.9 2.2 0.66 exactly 0.7 - - - 30.17 -
22:10 69 74 54 ESE 5.8 6.7 - - - 30.17 -
22:20 69 74 56 SE 3.9 4.5 - - - 30.17 -
22:30 69 74 53 SE 3.9 4.5 - - - 30.17 -
22:40 69 74 54 SE 3.9 4.5 - - - 30.17 -
23:10 68 74 59 SSE 1.9 2.2 - - - 30.17 -
23:20 68 74 61 SE 3.9 4.5 - - - 30.17 -
23:30 68 74 61 SE 1.9 2.2 - - - 30.17 -
23:40 68 74 63 SE 1.9 2.2 - - - 30.16 -
23:50 68 74 62 ESE 1.9 2.2 0.33 exactly 0.3 - - - 30.16 -
00:10 68 74 63 SE 1.9 2.2 - - - 30.16 -
00:20 68 74 64 SE 1.9 2.2 - - - 30.16 -
00:30 68
-
64 SE 1.9 2.2 - - - 30.16 -
00:40 68 74 64 ESE 1.9 2.2 - - - 30.15 -
00:50 68 74 64 East 1.9 2.2 0.33 exactly 0.3 - - - 30.15 -
01:10 68 74 63 SE 1.9 2.2 - - - 30.16 -
01:30 68 74 62 ESE 1.9 2.2 - - - 30.16 -
01:40 68 74 62 ESE 1.9 2.2 - - - 30.16 -
01:50 68 74 59 SE 1.9 2.2 0.33 exactly 0.3 - - - 30.15 -
02:00 68 74 57 SE 1.9 2.2 - - - 30.15 -0.01
02:10 68 74 56 SE 1.9 2.2 - - - 30.15 -
02:20 68 74 55 ESE 1.9 2.2 - - - 30.15 -
02:30 68 74 54 SE 1.9 2.2 - - - 30.15 -
02:40 68 74 55 East 1.9 2.2 - - - 30.15 -
02:50 68 74 56 East 3.9 4.5 0.33 exactly 0.3 - - - 30.14 -
03:00 68 74 57 ESE 3.9 4.5 - - - 30.14 -0.01
03:10 68 74 57 ESE 3.9 4.5 - - - 30.14 -
03:30 68 74 57 ESE 3.9 4.5 - - - 30.15 -
03:40 68 74 57 SE 3.9 4.5 - - - 30.15 -
03:50 68 74 58 SE 3.9 4.5 0.33 exactly 0.3 - - - 30.15 -
04:00 68
-
59 ESE 1.9 2.2 - - - 30.15 -
04:10 68 74 59 ESE 3.9 4.5 - - - 30.15 -
04:30 67 74 63 ESE 5.8 6.7 - - - 30.14 -
04:40 67 74 64 ESE 5.8 6.7 - - - 30.14 -
04:50 74
-
ESE 5.8 6.7 0.33 exactly 0.3 - - - 30.14 -
05:00 67 74 67 East 5.8 6.7 - - - 30.14 -0.01
05:10 67 74 68 East 5.8 6.7 - - - 30.14 -
05:20 67 74 69 East 5.8 6.7 - - - 30.14 -
05:40 67 74 72 East 5.8 6.7 - - - 30.15 -
05:50 67 74 73 East 7.8 8.9 0.33 exactly 0.3 - - - 30.15 -
06:20 65 74 83 ESE 9.7 11.2 - - - 30.14 -
06:30 64
-
85 ESE 9.7 11.2 - - - 30.15 -
06:40 63 74 90 ESE 9.7 11.2 - - - 30.15 -
06:50 63 74 91 East 9.7 11.2 0.66 exactly 0.7 - - - 30.15 -
07:10 61 74 95 East 9.7 11.2 - - - 30.16 -
07:20 61 74 93 East 9.7 11.2 - - - 30.16 -
07:30 61 74 93 ESE 9.7 11.2 - - - 30.16 -
07:40 61 74 95 East 9.7 11.2 - - - 30.16 -
07:50 61 74 96 East 9.7 11.2 0.66 exactly 0.7 - - - 30.16 -
08:00 61 74 94 East 9.7 11.2 - - - 30.16 +0.02
08:10 60 74 97 East 9.7 11.2 - - - 30.17 -
08:20 60 74 95 East 9.7 11.2 - - - 30.17 -
08:30 60 74 93 East 9.7 11.2 - - - 30.17 -
08:50 60 74 91 East 9.7 11.2 3 0.98 exactly 1.0 - - - 30.18 -
09:10 60 74 94 East 9.7 11.2 - - - 30.17 -
09:20 60
-
94 East 9.7 11.2 - - - 30.17 -
09:30 60 73 95 East 11.7 13.4 - - - 30.17 -
09:40 61 73 92 East 11.7 13.4 - - - 30.18 -
10:10 61 73 93 East 11.7 13.4 - - - 30.17 -
10:30 62 73 87 East 11.7 13.4 - - - 30.17 -
10:40 62 73 89 East 11.7 13.4 - - - 30.18 -
10:50 63 73 85 East 9.7 11.2 2 0.98 exactly 1.0 - - - 30.18 -
11:00 63
-
85 ESE 7.8 8.9 - - - 30.18 +0.02
11:10 63
-
86 ESE 7.8 8.9 - - - 30.18 -
11:20 63 73 86 ESE 7.8 8.9 - - - 30.18 -
11:30 63 73 88 ESE 7.8 8.9 - - - 30.18 -
12:10 63 73 88 ESE 9.7 11.2 - - - 30.17 -
12:20 62 73 91 ESE 9.7 11.2 - - - 30.18 -
12:30 63
-
87 ESE 9.7 11.2 - - - 30.18 -
12:40 62 73 90 ESE 9.7 11.2 - - - 30.18 -
12:50 62 73 90 ESE 9.7 11.2 0.66 exactly 0.7 - - - 30.18 -
13:00 63 73 87 ESE 11.7 13.4 - - - 30.18 -
13:20 63 73 85 East 11.7 13.4 - - - 30.17 -
13:30 63 73 86 East 9.7 11.2 - - - 30.16 -
13:40 63 73 86 East 9.7 11.2 - - - 30.15 -
13:50 63 73 87 East 9.7 11.2 5 0.98 exactly 1.0 - - - 30.14 -
14:30 63 73 87 ESE 11.7 13.4 - - - 30.14 -
14:40 63 73 85 ESE 11.7 13.4 - - - 30.15 -
14:50 64 73 84 East 9.7 11.2 3 0.98 exactly 1.0 3 1.64 0.82 - 2.46 30.14 -
15:20 64 73 84 East 11.7 13.4 - - - 30.13 -
15:30 64 73 83 East 11.7 13.4 - - - 30.13 -
15:40 64 73 83 East 11.7 13.4 - - - 30.13 -
15:50 64 73 82 East 13.6 15.7 3 0.98 exactly 1.0 3 1.64 0.82 - 2.46 30.13 -

Detailed Wave Spectra

Time Water Depth Wave Height Spectral Peak Period Average Wave Period Sampling Interval Wave Record
20:00 46 ft 0.82 ft 3.3 sec 0.6 sec 2400 sec
21:00 46 ft 0.59 ft 3.6 sec 0.6 sec 2400 sec
22:00 46 ft 0.52 ft 3.7 sec 0.6 sec 2400 sec
23:00 46 ft 0.46 ft 3.8 sec 0.6 sec 2400 sec
01:00 46 ft 0.43 ft 4.7 sec 0.6 sec 2400 sec
06:00 46 ft 0.36 ft 4.4 sec 0.6 sec 2400 sec
07:00 46 ft 0.59 ft 3.4 sec 0.6 sec 2400 sec
10:00 46 ft 0.82 ft 3.0 sec 0.6 sec 2400 sec
12:00 46 ft 0.69 ft 2.8 sec 0.6 sec 2400 sec
14:00 46 ft 0.92 ft 5.0 sec 3.1 sec 0.6 sec 2400 sec
15:00 46 ft 0.95 ft 2.6 sec 2.9 sec 0.6 sec 2400 sec