Station 46029 (LLNR 688) - COLUMBIA RIVER BAR - 20NM West of Columbia River Mouth Image indicating link to RSS feed of recent meteorological observations for station 46029


Conditions at 46029 as of
(7:30 am PDT)
1430 GMT on 08/10/2026:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Wind Direction Wind Direction (WDIR): N ( 360 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 9.7 kts
5-day plot - Wind Gust Wind Gust (GST): 11.7 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):30.13 in
5-day plot - Air Temperature Air Temperature (ATMP): 60.1 °F
5-day plot - Water Temperature Water Temperature (WTMP): 61.3 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 9.7 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 9.7 kts
5-day plot -  Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Supplemental Measurements
Lowest 1-minute Pressure
Time (PDT)Pressure
7:25 am30.13 in
Highest 1-minute Wind Speed
Time (PDT)5-day plot - 1-Minute Wind Speed WSPD 5-day plot - 1-Minute Wind Direction WDIR
7:24 am 11.7 kts N ( 360 deg true )
Previous observations
TIME
(PDT)
5-day plot - Wind Direction
WDIR
 
5-day plot - Wind Speed
WSPD
kts
5-day plot - Wind Gust
GST
kts
5-day plot - Wave Height
WVHT
ft
5-day plot - Dominant Wave Period
DPD
sec
5-day plot - Average Wave Period
APD
sec
5-day plot - Mean Wave Direction
MWD
 
5-day plot - Atmospheric Pressure
PRES
in
5-day plot - Pressure Tendency
PTDY
in
5-day plot - Air Temperature
ATMP
°F
5-day plot - Water Temperature
WTMP
°F
5-day plot - Dew Point
DEWP
°F
5-day plot - Salinity
SAL
psu
5-day plot - Visibility
VIS
nmi
5-day plot - Tide (above MLLW)
TIDE
ft
2026-08-10 07:20 am N 9.7 13.6 3.6 64.9NNW30.13- 60.3 61.2----
2026-08-10 07:10 am N 9.7 13.6 3.6-4.9NNW30.13- 60.3 61.3----
2026-08-10 07:00 am N 7.8 11.7----30.12+0.02 60.3 61.7----
2026-08-10 06:50 am N 11.7 15.5 3.6 64.5NNW30.12- 60.3 61.9----
2026-08-10 06:40 am N 11.7 13.6----30.12- 60.3 62.1----
2026-08-10 06:30 amNNW 9.7 13.6----30.12- 60.3 61.9----
2026-08-10 06:20 amNNW 9.7 11.7 3.3 64.3 NW30.12- 60.4 62.4----
2026-08-10 06:10 amNNW 9.7 11.7 3.3-4.3 NW30.12- 60.3 62.8----
2026-08-10 06:00 am N 11.7 13.6----30.12+0.02 60.3 63.0----
2026-08-10 05:50 amNNW 9.7 13.6 3.6 64.6NNW30.12- 60.4 63.0----
2026-08-10 05:40 amNNW 9.7 13.6----30.12- 60.3 63.0----
2026-08-10 05:30 amNNW 13.6 17.5----30.12- 60.4 62.8----
2026-08-10 05:20 amNNW 11.7 15.5 3.6 74.4 NW30.11- 60.4 62.8----
2026-08-10 05:10 am N 9.7 11.7 3.6-4.4 NW30.11- 60.4 62.8----
2026-08-10 05:00 amNNW 9.7 13.6----30.11+0.01 60.4 62.6----
2026-08-10 04:50 amNNW 11.7 17.5 3.6 64.6NNW30.11- 60.3 62.6----
2026-08-10 04:40 am N 11.7 15.5----30.11- 60.3 62.6----
2026-08-10 04:30 amNNW 13.6 17.5----30.11- 60.3 62.6----
2026-08-10 04:20 am N 13.6 17.5 3.6 64.6NNW30.11- 60.3 62.6----
2026-08-10 04:10 am N 13.6 15.5 3.6-4.6NNW30.11- 60.3 62.4----
2026-08-10 04:00 am N 13.6 17.5----30.11+0.00 60.3 62.4----
2026-08-10 03:50 am N 11.7 15.5 3.6 64.4NNW30.11- 60.3 62.4----
2026-08-10 03:40 amNNW 11.7 15.5----30.11- 60.3 62.1----
2026-08-10 03:30 am N 13.6 17.5----30.11- 60.1 61.9----
2026-08-10 03:20 am N 13.6 15.5 3.9 64.4NNW30.11- 60.3 61.7----
2026-08-10 03:10 am N 13.6 17.5 3.9-4.4NNW30.10- 60.3 61.7----
2026-08-10 03:00 am N 11.7 15.5----30.10+0.00 60.3 61.7----
2026-08-10 02:50 am N 13.6 17.5 4.3 64.6 NW30.09- 60.1 61.7----
2026-08-10 02:40 am N 11.7 15.5----30.10- 60.1 61.7----
2026-08-10 02:30 amNNW 13.6 19.4----30.10- 60.1 61.7----
2026-08-10 02:20 am N 11.7 15.5 3.9 64.6NNW30.10- 60.3 61.9----
2026-08-10 02:10 am N 13.6 17.5 3.9-4.6NNW30.09- 60.3 62.1----
2026-08-10 02:00 am N 11.7 15.5----30.10+0.00 60.3 62.4----
2026-08-10 01:50 am N 13.6 15.5 4.6 64.8 NW30.10- 60.4 62.4----
2026-08-10 01:40 am N 11.7 17.5 4.6-4.8 NW30.10- 60.6 62.4----
2026-08-10 01:30 am N 11.7 15.5----30.10- 60.6 62.4----
2026-08-10 01:20 am N 13.6 15.5 4.6 64.8 NW30.10- 60.4 62.4----
2026-08-10 01:10 am N 13.6 17.5----30.10- 60.6 62.6----
2026-08-10 01:00 amNNW 13.6 15.5----30.10+0.00 60.8 62.6----
2026-08-10 12:50 amNNW 11.7 15.5 4.6 65.0 NW30.10- 60.6 62.6----
2026-08-10 12:40 amNNW 13.6 17.5 4.6-5.0 NW30.10- 60.4 62.6----
2026-08-10 12:30 amNNW 13.6 15.5----30.10- 60.4 62.6----
2026-08-10 12:20 amNNW 11.7 17.5 4.3 54.8 NW30.10- 60.6 62.6----
2026-08-10 12:10 amNNW 11.7 15.5----30.10- 60.6 62.8----
2026-08-10 12:00 amNNW 11.7 15.5----30.10+0.01 60.6 62.8----
2026-08-09 11:50 pmNNW 13.6 17.5 4.6 64.9 NW30.10- 60.8 62.8----
2026-08-09 11:40 pmNNW 13.6 15.5----30.11- 60.8 62.8----
2026-08-09 11:30 pmNNW 11.7 17.5----30.11- 60.4 62.8----
2026-08-09 11:20 pmNNW 13.6 17.5 3.9 54.6 NW30.11- 60.6 62.8----
2026-08-09 11:10 pmNNW 13.6 17.5 3.9-4.6 NW30.11- 60.8 63.0----
2026-08-09 11:00 pmNNW 13.6 17.5----30.10+0.00 60.8 63.1----
2026-08-09 10:50 pmNNW 13.6 17.5 4.3 54.7 NW30.10- 60.8 63.1----
2026-08-09 10:40 pmNNW 13.6 17.5 4.3-4.7 NW30.10- 61.0 63.3----
2026-08-09 10:30 pm N 13.6 17.5----30.10- 61.2 63.3----
2026-08-09 10:20 pm N 11.7 17.5 3.9 54.6 NW30.10- 61.0 63.3----
2026-08-09 10:10 pmNNW 13.6 17.5 3.9-4.6 NW30.10- 61.2 63.5----
2026-08-09 10:00 pmNNW 13.6 15.5----30.10+0.00 61.0 63.5----
2026-08-09 09:50 pmNNW 13.6 19.4 3.9 64.5 NW30.10- 61.0 63.7----
2026-08-09 09:40 pmNNW 13.6 17.5 3.9-4.5 NW30.10- 61.2 63.7----
2026-08-09 09:30 pm N 13.6 17.5----30.10- 61.2 63.7----
2026-08-09 09:20 pmNNW 13.6 17.5 3.6 64.5 NW30.10- 61.5 63.7----
2026-08-09 09:10 pmNNW 11.7 15.5 3.6-4.5 NW30.09- 61.5 63.9----
2026-08-09 09:00 pmNNW 15.5 17.5----30.09+0.00 61.5 63.9----
2026-08-09 08:50 pm N 13.6 17.5 3.9 54.5 NW30.09- 61.7 63.9----
2026-08-09 08:40 pm N 13.6 15.5----30.09- 61.7 63.9----
2026-08-09 08:30 pm N 13.6 17.5----30.09- 61.7 63.9----
2026-08-09 08:20 pmNNW 13.6 17.5 3.9 54.4 NW30.09- 61.5 63.9----
2026-08-09 08:10 pm N 13.6 19.4 3.9-4.4 NW30.10- 61.5 63.9----
2026-08-09 08:00 pmNNW 13.6 19.4----30.10+0.00 61.5 63.9----
2026-08-09 07:50 pmNNW 13.6 17.5 3.9 64.5 NW30.09- 61.5 63.9----
2026-08-09 07:40 pmNNW 13.6 19.4----30.09- 61.7 63.9----
2026-08-09 07:30 pmNNW 13.6 15.5----30.09- 61.7 63.9----
2026-08-09 07:20 pmNNW 13.6 17.5 3.3 64.2NNW30.09- 61.7 63.9----
2026-08-09 07:10 pmNNW 13.6 17.5 3.3-4.2NNW30.09- 61.7 63.9----
2026-08-09 07:00 pmNNW 13.6 17.5----30.09-0.01 61.7 63.9----
2026-08-09 06:50 pmNNW 15.5 17.5 3.6 134.3WSW30.09- 61.7 63.9----
2026-08-09 06:40 pmNNW 13.6 17.5----30.09- 61.7 63.9----
2026-08-09 06:30 pmNNW 13.6 19.4----30.09- 61.5 63.9----
2026-08-09 06:20 pmNNW 13.6 21.4 3.3 64.2 NW30.09- 61.5 63.9----
2026-08-09 06:10 pmNNW 13.6 17.5----30.10- 61.5 63.9----
2026-08-09 06:00 pmNNW 15.5 17.5----30.09-0.03 61.3 63.9----
2026-08-09 05:50 pmNNW 13.6 17.5 3.3 64.4NNW30.09- 61.3-----
2026-08-09 05:40 pmNNW 15.5 17.5 3.3-4.4NNW30.09- 61.5 63.9----
2026-08-09 05:30 pmNNW 15.5 17.5----30.09- 61.5 63.7----
2026-08-09 05:20 pmNNW 15.5 19.4 3.6 64.3NNW30.09- 61.5 63.7----
2026-08-09 05:10 pmNNW 13.6 17.5 3.6-4.3NNW30.09- 61.5 63.5----
2026-08-09 05:00 pmNNW 13.6 17.5----30.09-0.04 61.5 63.5----
2026-08-09 04:50 pmNNW 13.6 15.5 3.6 64.3NNW30.09- 61.3-----
2026-08-09 04:40 pmNNW 11.7 15.5----30.10- 61.3 63.5----
2026-08-09 04:30 pmNNW 11.7 15.5----30.10- 61.2 63.5----
2026-08-09 04:20 pm N 13.6 17.5 3.6 64.5 NW30.11- 61.0 63.5----
2026-08-09 04:10 pmNNW 11.7 15.5 3.6-4.5 NW30.11- 61.0 63.5----
2026-08-09 04:00 pmNNW 13.6 15.5----30.11-0.03 60.8 63.5----
2026-08-09 03:50 pmNNW 13.6 17.5 3.6 64.5 NW30.11- 60.8 63.5----
2026-08-09 03:40 pm N 11.7 15.5 3.6-4.5 NW30.11- 60.8 63.7----
2026-08-09 03:30 pmNNW 13.6 15.5----30.11- 61.0 63.7----
2026-08-09 03:20 pmNNW 11.7 15.5 3.6 64.6 NW30.12- 61.0 63.7----
2026-08-09 03:10 pmNNW 11.7 15.5 3.6-4.6 NW30.12- 60.8 63.7----
2026-08-09 03:00 pmNNW 11.7 13.6----30.13+0.00 60.8 63.7----
2026-08-09 02:50 pmNNW 11.7 15.5 3.6 64.6 NW30.12- 60.6 63.7----
2026-08-09 02:40 pmNNW 11.7 15.5----30.12- 60.6 63.7----
2026-08-09 02:30 pmNNW 11.7 13.6----30.12- 60.6 63.7----
2026-08-09 02:20 pmNNW 11.7 13.6 3.9 64.6 NW30.12- 60.6 63.7----
2026-08-09 02:10 pmNNW 13.6 15.5 3.9-4.6 NW30.12- 60.6 63.7----
2026-08-09 02:00 pm NW 13.6 15.5----30.12+0.00 60.6 63.7----
2026-08-09 01:50 pmNNW 13.6 15.5 3.6 64.7 NW30.13- 60.8 63.7----
2026-08-09 01:40 pmNNW 11.7 13.6 3.6-4.7 NW30.13- 60.8 63.7----
2026-08-09 01:30 pmNNW 11.7 13.6----30.13- 60.8 63.7----
2026-08-09 01:20 pm NW 11.7 15.5 3.6 64.8 NW30.13- 60.8 63.9----
2026-08-09 01:10 pmNNW 11.7 15.5 3.6-4.8 NW30.13- 60.8 63.9----
2026-08-09 01:00 pmNNW 11.7 13.6----30.13+0.00 60.8 63.9----
2026-08-09 12:50 pmNNW 9.7 13.6----30.13- 60.8 63.9----
2026-08-09 12:40 pmNNW 9.7 13.6----30.13- 60.6 63.9----
2026-08-09 12:30 pm N 9.7 13.6----30.13- 60.4 63.9----
2026-08-09 12:20 pm N 9.7 11.7 3.9 64.8 NW30.12- 60.4 63.9----
2026-08-09 12:10 pm N 9.7 13.6 3.9-4.8 NW30.12-- 63.9----
2026-08-09 12:00 pmNNW 9.7 11.7----30.13+0.00 60.3 63.9----
2026-08-09 11:50 am N 9.7 13.6 3.9 64.9NNW30.13- 60.3 63.9----
2026-08-09 11:40 amNNW 9.7 13.6----30.13- 60.3 63.9----
2026-08-09 11:30 am N 9.7 11.7----30.13- 60.4 63.9----
2026-08-09 11:20 amNNW 9.7 13.6 3.9 64.9 NW30.12- 60.4 63.9----
2026-08-09 11:10 am N 9.7 11.7 3.9-4.9 NW30.12- 60.4 63.7----
2026-08-09 11:00 amNNW 9.7 13.6----30.12+0.01 60.3 63.7----
2026-08-09 10:50 amNNW 9.7 13.6 3.9 64.9NNW30.12- 60.3 63.5----
2026-08-09 10:40 am N 11.7 13.6----30.12- 60.1 63.5----
2026-08-09 10:30 amNNW 9.7 13.6----30.12- 60.1 63.5----
2026-08-09 10:20 amNNW 9.7 13.6 3.6 64.7 NW30.13- 60.1 63.5----
2026-08-09 10:10 amNNW 9.7 11.7 3.6-4.7 NW30.13- 59.9 63.5----
2026-08-09 10:00 am N 11.7 13.6----30.13+0.00 59.7 63.5----
2026-08-09 09:50 amNNW 11.7 15.5 3.9 64.8NNW30.13- 59.9 63.5----
2026-08-09 09:40 amNNW 11.7 13.6----30.13- 59.9 63.5----
2026-08-09 09:30 amNNW 11.7 15.5----30.14- 59.7 63.5----
2026-08-09 09:20 amNNW 11.7 15.5 3.9 54.8 NW30.14- 59.9 63.5----
2026-08-09 09:10 amNNW 11.7 15.5 3.9-4.8 NW30.14- 59.7 63.5----
2026-08-09 09:00 amNNW 11.7 13.6----30.14+0.01 59.7 63.5----
2026-08-09 08:50 am N 11.7 15.5 3.9 64.7NNW30.13- 59.7 63.5----
2026-08-09 08:40 am N 11.7 15.5----30.13- 59.9 63.5----
2026-08-09 08:30 am N 11.7 15.5----30.12- 59.9 63.5----
2026-08-09 08:20 am N 11.7 15.5 3.9 54.7NNW30.12- 59.7 63.5----
2026-08-09 08:10 am N 11.7 15.5 3.9-4.7NNW30.12- 59.9 63.5----
2026-08-09 08:00 am N 11.7 17.5----30.12+0.00 59.7 63.5----
2026-08-09 07:50 am N 13.6 17.5 3.9 64.6 NW30.12- 59.7 63.7----
2026-08-09 07:40 am N 11.7 15.5----30.13- 59.7 63.7----
2026-08-09 07:30 am N 13.6 15.5----30.13- 59.9 63.7----
2026-08-09 07:20 am N 13.6 17.5 3.9 64.6 NW30.13- 59.9 63.7----
2026-08-09 07:10 amNNW 13.6 17.5----30.13- 59.9 63.7----
2026-08-09 07:00 amNNW 13.6 17.5----30.13+0.00 60.1 63.7----
2026-08-09 06:50 am N 13.6 17.5 4.3 54.5 NW30.12- 60.1 63.7----

Wave Summary
for 46029 as of (7:10 am PDT)
1410 GMT on 08/10/2026:

These wave data are displayed in rounded times.

     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Significant Wave Height Significant Wave Height (WVHT): 3.6 ft
5-day plot - Swell Height Swell Height (SwH): 3.0 ft
5-day plot - Swell Period Swell Period (SwP): 5.9 sec
5-day plot - Swell Direction Swell Direction (SwD):NNW
5-day plot - Wind Wave Height Wind Wave Height (WWH): 2.3 ft
5-day plot - Wind Wave Period Wind Wave Period (WWP): 4.8 sec
5-day plot - Wind Wave Direction Wind Wave Direction (WWD):NNW
5-day plot - Wave Steepness Wave Steepness (STEEPNESS): STEEP
5-day plot - Average Wave Period Average Wave Period (APD): 4.9 sec
Previous observations
TIME
(PDT)
5-day plot - Wave Height
WVHT
ft
5-day plot - Swell Height
SwH
ft
5-day plot - Swell Period
SwP
sec
5-day plot - Swell Direction
SwD
 
5-day plot - Wind Wave Height
WWH
ft
5-day plot - Wind Wave Period
WWP
sec
5-day plot - Wind Wave Direction
WWD
 
5-day plot - Wave Steepness
STEEPNESS
 
5-day plot - Average Wave Period
APD
sec
2026-08-10 06:40 am 3.6 2.0 6.7 NW 3.0 5.9 NNW STEEP 4.5
2026-08-10 06:10 am 3.3 2.3 6.2 NW 2.3 5.0 NW STEEP 4.3
2026-08-10 05:40 am 3.6 3.0 6.2NNW 2.3 4.3 NNW STEEP 4.6
2026-08-10 05:10 am 3.6 2.6 6.7 NW 2.3 4.8 NNW STEEP 4.4
2026-08-10 04:40 am 3.6 2.3 6.2NNW 3.0 5.3 NNW STEEP 4.6
2026-08-10 04:10 am 3.6 2.0 16.0 SW 3.0 6.2 NNW STEEP 4.6
2026-08-10 03:40 am 3.6 2.0 16.0WSW 3.3 6.2 NNW STEEP 4.4
2026-08-10 03:10 am 3.9 2.0 16.0 W 3.3 6.2 NNW STEEP 4.4
2026-08-10 02:40 am 4.3 2.3 16.0 W 3.6 5.9 NW STEEP 4.6
2026-08-10 02:10 am 3.9 2.0 8.3WNW 3.6 5.6 NNWVERY_STEEP 4.6
2026-08-10 01:40 am 4.6 2.6 6.2 NW 3.6 5.3 NW STEEP 4.8
2026-08-10 01:10 am 4.6 2.3 16.0 S 4.3 6.2 NW STEEP 4.8
2026-08-10 12:40 am 4.6 2.6 16.0SSW 3.6 5.9 NW STEEP 5.0
2026-08-10 12:10 am 4.3 2.6 6.7NNW 3.6 5.0 NWVERY_STEEP 4.8
2026-08-09 11:40 pm 4.6 2.3 16.0 NW 3.9 5.6 NWVERY_STEEP 4.9
2026-08-09 11:10 pm 3.9 2.0 16.0 SW 3.6 4.8 NWVERY_STEEP 4.6
2026-08-09 10:40 pm 4.3 1.6 12.1WNW 3.9 4.8 NWVERY_STEEP 4.7
2026-08-09 10:10 pm 3.9 2.0 16.0SSW 3.6 4.5 NWVERY_STEEP 4.6
2026-08-09 09:40 pm 3.9 1.6 17.4SSW 3.6 5.9 NW STEEP 4.5
2026-08-09 09:10 pm 3.6 2.0 12.1WNW 3.3 5.9 NW STEEP 4.5
2026-08-09 08:40 pm 3.9 2.0 16.0SSW 3.3 4.8 NWVERY_STEEP 4.5
2026-08-09 08:10 pm 3.9 2.0 16.0SSW 3.3 4.5 NWVERY_STEEP 4.4
2026-08-09 07:40 pm 3.9 2.0 6.7NNW 3.3 5.9 NW STEEP 4.5
2026-08-09 07:10 pm 3.3 2.0 16.0WSW 3.0 6.2 NNW STEEP 4.2
2026-08-09 06:40 pm 3.6 2.0 12.9WSW 3.0 6.2 NW AVERAGE 4.3
2026-08-09 06:10 pm 3.3 1.6 10.0WNW 3.0 6.2 NW STEEP 4.2
2026-08-09 05:40 pm 3.3 1.6 17.4 S 2.6 6.2 NNW STEEP 4.4
2026-08-09 05:10 pm 3.6 1.6 11.4 W 3.0 6.2 NNW STEEP 4.3
2026-08-09 04:40 pm 3.6 2.3 6.2NNW 2.6 5.6 NNW STEEP 4.3
2026-08-09 04:10 pm 3.6 2.3 10.0 W 2.6 5.9 NW STEEP 4.5
2026-08-09 03:40 pm 3.6 2.3 12.9 SW 2.6 5.9 NW STEEP 4.5
2026-08-09 03:10 pm 3.6 2.3 6.2 NW 3.0 4.8 NW STEEP 4.6
2026-08-09 02:40 pm 3.6 2.0 10.0WNW 3.3 6.2 NW STEEP 4.6
2026-08-09 02:10 pm 3.9 2.0 10.0WNW 3.3 5.9 NW STEEP 4.6
2026-08-09 01:40 pm 3.6 2.6 5.9 NW 2.6 4.3 NNW STEEP 4.7
2026-08-09 01:10 pm 3.6 2.0 12.9 W 3.0 5.9 NW STEEP 4.8
2026-08-09 12:10 pm 3.9 3.0 6.2 NW 2.6 4.5 NW STEEP 4.8
2026-08-09 11:40 am 3.9 3.0 5.9NNW 2.3 5.0 NW STEEP 4.9
2026-08-09 11:10 am 3.9 3.6 5.9 NW 2.0 3.8 NW STEEP 4.9
2026-08-09 10:40 am 3.9 3.0 5.9NNW 2.6 5.0 NW STEEP 4.9
2026-08-09 10:10 am 3.6 3.0 6.2 NW 2.3 4.2 NW STEEP 4.7
2026-08-09 09:40 am 3.9 3.0 6.2NNW 3.0 5.0 NW STEEP 4.8
2026-08-09 09:10 am 3.9 2.6 6.2NNW 3.0 5.3 NWVERY_STEEP 4.8
2026-08-09 08:40 am 3.9 2.6 5.9NNW 3.0 5.3 NW STEEP 4.7
2026-08-09 08:10 am 3.9 2.3 6.7NNW 3.3 5.0 NNWVERY_STEEP 4.7
2026-08-09 07:40 am 3.9 2.3 6.2 NW 3.3 5.6 NW STEEP 4.6
2026-08-09 07:10 am 3.9 1.6 10.8 NW 3.6 6.2 NW STEEP 4.6

Plot icon Plot of wave energy versus frequency (and period)