COLUMBIA RIVER BAR 20NM West of Columbia River Mouth (46029)

Conditions for Monday

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Marine Data Graph

Current Weather/Wave Observations

Air Temperature: 58° F
Humidity: 83
Wind direction (W Dir): NNW (335 - 344 Degrees)
Wind Speed (W Spd): 19.4 kts (22.4 mph)
Wind Gust (W Spd): 21.4 kts (24.6 mph)
Dominant Wave Period (DWP): 10 sec
Dominant Wave Height (DWH): 5.58 ft
Dominant Wave Range (DWR): exactly 5.6 ft
Wind Wave Period (WWP): 5 sec
Wind Wave Height (WWH): 4.92 ft
Wind Wave Range (WWR): 4.10 - 5.74 ft
Wave Swell Period (WSP): 10 sec
Wave Swell Height (WSH): 3.28 ft
Wave Swell Range (WSR): 2.46 - 4.10 ft
Atmospheric Pressure (AP): 30.06 in
Pressure Tendency (PT): -0.02 in
Steady or increasing, then decreasing; or decreasing, then decreasing more rapidly

Updated: 5:50 PM PDT on May 22, 2017

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Current Wave Detail Observations

Water Depth: 440 ft
Wave Height: 5.48 ft
Spectral Peak Period: 10.0 sec
Average Wave Period: 4.9 sec
Sampling Interval: 0.6 sec
Wave Record: 2400 sec

Updated: 6:00 PM PDT on May 22, 2017

General Information

Location: 46.159 North -124.514 West
Buoy Type: 3-meter discus buoy
Buoy Hull: 3D78
Payload: AMPS payload
Owned by: NDBC
Windspeed: Measured by obtained from anemometer
Sea Surface: Measured by Intake

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 55 56 97 North 19.4 22.4 5 4.59 exactly 4.6 5 4.92 4.10 - 5.74 10 1.64 0.82 - 2.46 30.15 -
22:50 56 57 94 North 15.6 17.9 5 4.27 exactly 4.3 5 3.28 2.46 - 4.10 11 1.64 0.82 - 2.46 30.17 +0.02
23:50 56 57 93 North 15.6 17.9 5 4.27 exactly 4.3 5 3.28 2.46 - 4.10 11 1.64 0.82 - 2.46 30.16 +0.01
00:50 56 56 91 North 17.5 20.1 6 4.59 exactly 4.6 6 4.92 4.10 - 5.74 9 1.64 0.82 - 2.46 30.15 -0.01
01:50 57 56 85 North 17.5 20.1 6 4.92 exactly 4.9 6 4.92 4.10 - 5.74 10 1.64 0.82 - 2.46 30.15 -0.02
02:50 57 56 88 North 17.5 20.1 6 4.59 exactly 4.6 6 3.28 2.46 - 4.10 11 1.64 0.82 - 2.46 30.14 -0.02
03:50 57 56 88 North 17.5 20.1 5 4.92 exactly 4.9 5 4.92 4.10 - 5.74 10 1.64 0.82 - 2.46 30.13 -0.02
04:50 56 56 95 North 15.6 17.9 6 4.92 exactly 4.9 6 4.92 4.10 - 5.74 10 3.28 2.46 - 4.10 30.12 -0.03
05:50 56 55 96 North 15.6 17.9 10 4.92 exactly 4.9 6 3.28 2.46 - 4.10 10 3.28 2.46 - 4.10 30.11 -0.03
06:50 56 55 95 North 15.6 17.9 10 5.25 exactly 5.2 5 4.92 4.10 - 5.74 10 3.28 2.46 - 4.10 30.12 -0.01
07:50 56 55 95 North 15.6 17.9 11 4.92 exactly 4.9 6 3.28 2.46 - 4.10 11 3.28 2.46 - 4.10 30.12 -
08:50 56 55 95 NNW 17.5 20.1 10 4.92 exactly 4.9 6 3.28 2.46 - 4.10 10 3.28 2.46 - 4.10 30.12 +0.01
09:50 57 56 90 North 17.5 20.1 10 5.58 exactly 5.6 6 3.28 2.46 - 4.10 10 3.28 2.46 - 4.10 30.12 -
10:50 58 57 84 North 15.6 17.9 10 4.92 exactly 4.9 5 3.28 2.46 - 4.10 10 3.28 2.46 - 4.10 30.11 -
11:50 58 57 83 NNE 13.6 15.7 11 4.92 exactly 4.9 5 3.28 2.46 - 4.10 11 3.28 2.46 - 4.10 30.10 -0.02
12:50 59 57 83 NNW 11.7 13.4 10 4.59 exactly 4.6 5 3.28 2.46 - 4.10 10 3.28 2.46 - 4.10 30.09 -0.03
13:50 59 58 85 NNW 19.4 22.4 10 4.59 exactly 4.6 5 3.28 2.46 - 4.10 10 3.28 2.46 - 4.10 30.09 -0.03
14:50 58 58 89 NNW 19.4 22.4 10 5.25 exactly 5.2 5 3.28 2.46 - 4.10 10 4.92 4.10 - 5.74 30.08 -0.02
16:50 58 58 86 NNW 21.4 24.6 9 4.92 exactly 4.9 6 3.28 2.46 - 4.10 9 3.28 2.46 - 4.10 30.07 -0.01
17:50 58 57 83 NNW 19.4 22.4 10 5.58 exactly 5.6 5 4.92 4.10 - 5.74 10 3.28 2.46 - 4.10 30.06 -0.02

Detailed Wave Spectra

Time Water Depth Wave Height Spectral Peak Period Average Wave Period Sampling Interval Wave Record
21:00 440 ft 4.69 ft 5.3 sec 4.7 sec 0.6 sec 2400 sec
00:00 440 ft 4.30 ft 5.3 sec 4.7 sec 0.6 sec 2400 sec
01:00 440 ft 4.69 ft 5.6 sec 4.8 sec 0.6 sec 2400 sec
02:00 440 ft 4.86 ft 5.6 sec 4.8 sec 0.6 sec 2400 sec
03:00 440 ft 4.49 ft 5.6 sec 4.5 sec 0.6 sec 2400 sec
04:00 440 ft 4.92 ft 5.3 sec 4.7 sec 0.6 sec 2400 sec
05:00 440 ft 4.89 ft 5.6 sec 4.8 sec 0.6 sec 2400 sec
06:00 440 ft 5.02 ft 10.0 sec 5.1 sec 0.6 sec 2400 sec
09:00 440 ft 4.92 ft 10.0 sec 5.6 sec 0.6 sec 2400 sec
10:00 440 ft 5.54 ft 10.0 sec 5.6 sec 0.6 sec 2400 sec
11:00 440 ft 4.86 ft 10.0 sec 5.4 sec 0.6 sec 2400 sec
12:00 440 ft 4.89 ft 10.8 sec 5.7 sec 0.6 sec 2400 sec
18:00 440 ft 5.48 ft 10.0 sec 4.9 sec 0.6 sec 2400 sec