PT ARENA 19NM North of Point Arena, CA (46014)

Conditions for Sunday

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Marine Data Graph

Current Weather/Wave Observations

Air Temperature: ° F
Wind direction (W Dir): NNW (325 - 334 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): 7 sec
Dominant Wave Height (DWH): 6.56 ft
Dominant Wave Range (DWR): exactly 6.6 ft
Wind Wave Period (WWP): 6 sec
Wind Wave Height (WWH): 3.28 ft
Wind Wave Range (WWR): 2.46 - 4.10 ft
Wave Swell Period (WSP): 7 sec
Wave Swell Height (WSH): 4.92 ft
Wave Swell Range (WSR): 4.10 - 5.74 ft
Atmospheric Pressure (AP): 29.99 in
Pressure Tendency (PT): -0.04 in
Steady or increasing, then decreasing; or decreasing, then decreasing more rapidly

Updated: 4:50 PM PDT on May 24, 2015

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Current Wave Detail Observations

Water Depth: 840 ft
Wave Height: 6.56 ft
Spectral Peak Period: 7.1 sec
Average Wave Period: 5.8 sec
Sampling Interval: 0.6 sec
Wave Record: 2400 sec

Updated: 5:00 PM PDT on May 24, 2015

General Information

Location: 39.235 North -123.974 West
Buoy Type: 3-meter discus buoy
Buoy Hull: 3D44
Payload: AMPS payload
Owned by: NDBC
Windspeed: Measured by obtained from anemometer
Sea Surface: Measured by Intake
Note: "Potential Explosive Hazard Exists for this Buoy"

Weather and Wave Data

Time Temp Humidity Wind Dominant Wave Wind Wave Wave Swell Pressure
  Air
(°F)
Water
(°F)
  Dir Speed
(kts)
Speed
(mph)
Period
(sec)
Height
(ft)
Range
(ft)
Period
(sec)
Height
(ft)
Range
(ft)
Period
(sec)
Height
(ft)
Range
(ft)
Atmo.
(in)
Tend.
(in)
20:50 51
-
North 19.4 22.4 8 9.51 exactly 9.5 8 9.84 9.02 - 10.66 15 1.64 0.82 - 2.46 30.07 -
21:50 51
-
North 17.5 20.1 8 9.51 exactly 9.5 8 9.84 9.02 - 10.66 13 3.28 2.46 - 4.10 30.07 -
22:50 51
-
NNW 21.4 24.6 7 9.19 exactly 9.2 7 9.84 9.02 - 10.66 14 1.64 0.82 - 2.46 30.06 -
23:50 51
-
NNW 21.4 24.6 7 8.86 exactly 8.9 7 8.20 7.38 - 9.02 13 1.64 0.82 - 2.46 30.06 -
00:50 51
-
NNW 19.4 22.4 8 7.55 exactly 7.5 8 6.56 5.74 - 7.38 13 1.64 0.82 - 2.46 30.06 -
01:50 51
-
NNW 19.4 22.4 7 7.55 exactly 7.5 7 8.20 7.38 - 9.02 13 1.64 0.82 - 2.46 30.06 -0.01
02:50 51
-
NNW 19.4 22.4 7 7.87 exactly 7.9 7 8.20 7.38 - 9.02 13 1.64 0.82 - 2.46 30.04 -0.02
03:50 51
-
NNW 19.4 22.4 7 7.55 exactly 7.5 7 8.20 7.38 - 9.02 13 1.64 0.82 - 2.46 30.03 -0.04
04:50 51
-
NNW 21.4 24.6 7 7.55 exactly 7.5 7 4.92 4.10 - 5.74 8 4.92 4.10 - 5.74 30.02 -0.03
05:50 50
-
NNW 21.4 24.6 8 7.55 exactly 7.5 8 6.56 5.74 - 7.38 12 3.28 2.46 - 4.10 30.03 -0.01
06:50 50
-
NNW 19.4 22.4 7 8.53 exactly 8.5 7 8.20 7.38 - 9.02 13 3.28 2.46 - 4.10 30.04 +0.01
07:50 50
-
NNW 19.4 22.4 8 7.87 exactly 7.9 7 6.56 5.74 - 7.38 8 4.92 4.10 - 5.74 30.05 +0.02
08:50 50
-
NNW 17.5 20.1 8 8.86 exactly 8.9 8 8.20 7.38 - 9.02 13 3.28 2.46 - 4.10 30.05 +0.02
09:50 50
-
NNW 19.4 22.4 8 8.20 exactly 8.2 8 8.20 7.38 - 9.02 12 3.28 2.46 - 4.10 30.04 +0.01
10:50 50
-
NNW 15.6 17.9 7 7.55 exactly 7.5 7 6.56 5.74 - 7.38 8 3.28 2.46 - 4.10 30.04 -
11:50 50
-
NNW 15.6 17.9 8 7.87 exactly 7.9 7 6.56 5.74 - 7.38 8 4.92 4.10 - 5.74 30.04 -
12:50 50
-
NNW 15.6 17.9 8 7.22 exactly 7.2 5 4.92 4.10 - 5.74 8 4.92 4.10 - 5.74 30.04 -
13:50 50
-
NNW 17.5 20.1 8 7.22 exactly 7.2 8 6.56 5.74 - 7.38 11 3.28 2.46 - 4.10 30.03 -0.01
14:50 50
-
NNW 13.6 15.7 8 7.22 exactly 7.2 7 4.92 4.10 - 5.74 8 4.92 4.10 - 5.74 30.02 -0.03
15:50 50
-
NNW 13.6 15.7 8 7.22 exactly 7.2 6 4.92 4.10 - 5.74 8 4.92 4.10 - 5.74 30.01 -0.03
16:50 50
-
NNW 13.6 15.7 7 6.56 exactly 6.6 6 3.28 2.46 - 4.10 7 4.92 4.10 - 5.74 29.99 -0.04

Detailed Wave Spectra

Time Water Depth Wave Height Spectral Peak Period Average Wave Period Sampling Interval Wave Record
21:00 840 ft 9.35 ft 7.7 sec 6.0 sec 0.6 sec 2400 sec
22:00 840 ft 9.65 ft 7.7 sec 6.1 sec 0.6 sec 2400 sec
23:00 840 ft 9.19 ft 7.1 sec 6.0 sec 0.6 sec 2400 sec
00:00 840 ft 8.99 ft 7.1 sec 5.9 sec 0.6 sec 2400 sec
02:00 840 ft 7.64 ft 7.1 sec 5.6 sec 0.6 sec 2400 sec
03:00 840 ft 7.87 ft 7.1 sec 5.7 sec 0.6 sec 2400 sec
04:00 840 ft 7.68 ft 7.1 sec 5.6 sec 0.6 sec 2400 sec
05:00 840 ft 7.71 ft 6.7 sec 5.8 sec 0.6 sec 2400 sec
06:00 840 ft 7.64 ft 7.7 sec 5.6 sec 0.6 sec 2400 sec
07:00 840 ft 8.56 ft 7.1 sec 5.8 sec 0.6 sec 2400 sec
09:00 840 ft 8.99 ft 8.3 sec 6.0 sec 0.6 sec 2400 sec
10:00 840 ft 8.20 ft 8.3 sec 5.9 sec 0.6 sec 2400 sec
11:00 840 ft 7.71 ft 6.7 sec 5.7 sec 0.6 sec 2400 sec
12:00 840 ft 7.97 ft 8.3 sec 5.9 sec 0.6 sec 2400 sec
13:00 840 ft 7.19 ft 7.7 sec 5.7 sec 0.6 sec 2400 sec
15:00 840 ft 7.09 ft 7.7 sec 5.7 sec 0.6 sec 2400 sec
16:00 840 ft 7.09 ft 7.7 sec 5.7 sec 0.6 sec 2400 sec
17:00 840 ft 6.56 ft 7.1 sec 5.8 sec 0.6 sec 2400 sec