Station 45003 (LLNR 11510) - NORTH HURON - 32NM Northeast of Alpena, MI Image indicating link to RSS feed of recent meteorological observations for station 45003


Conditions at 45003 as of
(9:30 pm EDT on 07/26/2024)
0130 GMT on 07/27/2024:
     

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): S ( 170 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 7.8 kts
5-day plot - Wind Gust Wind Gust (GST): 7.8 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):30.15 in
5-day plot - Air Temperature Air Temperature (ATMP): 68.0 °F
5-day plot - Water Temperature Water Temperature (WTMP): 68.0 °F
5-day plot - Dew Point Dew Point (DEWP): 61.0 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 7.8 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 7.8 kts
5-day plot -  Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Supplemental Measurements
Highest 1-minute Wind Speed
Time (EDT)5-day plot - 1-Minute Wind Speed WSPD 5-day plot - 1-Minute Wind Direction WDIR
9:25 pm 7.8 kts-
Previous observations
TIME
(EDT)
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
2024-07-26 09:20 pm S 7.8 7.8 0.3-3.4-30.15- 68.2 68.0 61.2---
2024-07-26 09:10 pm S 7.8 7.8----30.15- 68.4 68.2 61.0---
2024-07-26 09:00 pm S 5.8 7.8----30.15-0.03 68.4 68.0 60.4---
2024-07-26 08:50 pm S 5.8 7.8 0.3-2.9-30.15- 68.4 68.2 60.4---
2024-07-26 08:40 pm S 5.8 7.8----30.16- 68.5 68.4 60.8---
2024-07-26 08:30 pm S 5.8 7.8----30.16- 68.5 68.2 60.4---
2024-07-26 08:20 pm S 7.8 7.8 0.3-2.9-30.16- 68.7 68.4 59.5---
2024-07-26 08:10 pm S 7.8 7.8 0.3-2.9-30.16- 68.7 68.5 59.4---
2024-07-26 08:00 pm S 7.8 7.8----30.16-0.04 68.7 68.5 59.9---
2024-07-26 07:50 pm S 7.8 7.8 0.3-2.7-30.16- 68.9 68.5 60.1---
2024-07-26 07:40 pm S 7.8 7.8----30.17- 68.9 68.5 59.5---
2024-07-26 07:30 pm S 7.8 7.8----30.16- 68.9 68.5 58.8---
2024-07-26 07:20 pm S 7.8 7.8 0.3-2.7-30.17- 68.7 68.7 59.7---
2024-07-26 07:10 pm S 7.8 9.7 0.3-2.7-30.17- 68.7 68.2 59.9---
2024-07-26 07:00 pm S 5.8 7.8----30.17-0.04 68.7 68.0 59.0---
2024-07-26 06:50 pm S 5.8 7.8 0.3-2.6-30.17- 68.7 68.0 58.8---
2024-07-26 06:40 pm S 3.9 5.8 0.3-2.6-30.17- 68.9 68.2 58.6---
2024-07-26 06:30 pmSSE 3.9 3.9----30.17- 68.7 68.4 58.6---
2024-07-26 06:20 pmSSE 1.9 3.9 0.3-2.6-30.18- 68.7 68.2 59.0---
2024-07-26 06:10 pmSSE 1.9 1.9 0.3-2.6-30.18- 68.7 68.2 59.2---
2024-07-26 06:00 pmSSE 1.9 1.9----30.18-0.04 68.7 68.2 58.8---
2024-07-26 05:50 pm SE 1.9 1.9 0.3-2.6-30.18- 68.9 68.2 59.0---
2024-07-26 05:40 pm SE 1.9 1.9 0.3-2.6-30.18- 68.7 68.4 58.6---
2024-07-26 05:30 pm SE 1.9 1.9----30.19- 68.5 68.2 59.4---
2024-07-26 05:20 pm S 1.9 1.9 0.3-2.4-30.19- 68.4 68.0 59.5---
2024-07-26 05:10 pm- 0.0 1.9 0.3-2.4-30.19- 68.9 68.0 59.7---
2024-07-26 05:00 pm- 0.0 0.0----30.20-0.03 69.3 68.0 59.5---
2024-07-26 04:50 pm- 0.0 0.0 0.3-2.4-30.20- 69.1 68.0 59.5---
2024-07-26 04:40 pm- 0.0 1.9----30.20- 68.9 68.0 59.5---
2024-07-26 04:30 pm- 0.0 1.9----30.19- 68.9 68.0 59.5---
2024-07-26 04:20 pm- 0.0 0.0 0.7-2.4-30.19- 68.5 67.8 59.7---
2024-07-26 04:10 pm- 0.0 1.9 0.7-2.4-30.20- 67.8 67.8 59.5---
2024-07-26 04:00 pm NW 1.9 3.9----30.21-0.03 67.6 67.8 60.1---
2024-07-26 03:50 pm NW 1.9 1.9 0.7-2.5-30.21- 67.6 67.8 59.9---
2024-07-26 03:40 pmNNW 1.9 1.9----30.21- 67.5- 60.3---
2024-07-26 03:30 pm NW 1.9 1.9----30.22- 67.1 67.6 60.4---
2024-07-26 03:20 pmNNW 1.9 3.9 0.7-2.5-30.21- 67.1 67.6 60.6---
2024-07-26 03:10 pm NW 3.9 3.9 0.7-2.5-30.22- 67.1 67.6 60.4---
2024-07-26 03:00 pmNNW 3.9 3.9----30.22-0.03 66.7 67.5 60.1---
2024-07-26 02:50 pm NW 3.9 3.9 0.7-2.5-30.22- 66.7 67.5 60.4---
2024-07-26 02:40 pm NW 3.9 5.8 0.7-2.5-30.22- 66.7 67.5 60.6---
2024-07-26 02:30 pm NW 3.9 5.8----30.22- 66.6 67.5 60.8---
2024-07-26 02:20 pm NW 5.8 5.8 0.7-2.5-30.22- 66.4 67.5 60.8---
2024-07-26 02:10 pmWNW 5.8 5.8 0.7-2.5-30.23- 66.4 67.3 61.0---
2024-07-26 02:00 pmWNW 5.8 5.8----30.23-0.01 66.2 67.3 61.2---
2024-07-26 01:50 pmWNW 5.8 7.8 0.7-2.5-30.23- 66.2 67.3 61.3---
2024-07-26 01:40 pmWNW 5.8 5.8----30.23- 66.2 67.3 61.5---
2024-07-26 01:30 pmWNW 5.8 5.8----30.23- 66.2 67.1 61.2---
2024-07-26 01:20 pmWNW 5.8 5.8 0.7-2.5-30.23- 66.2 67.1 61.0---
2024-07-26 01:10 pmWNW 5.8 7.8 0.7-2.5-30.23- 66.0 67.1 61.2---
2024-07-26 01:00 pmWNW 7.8 7.8----30.23-0.01 66.0 66.9 60.8---
2024-07-26 12:50 pmWNW 7.8 9.7 1.0 32.6WNW30.24- 66.0 66.9 61.3---
2024-07-26 12:40 pmWNW 7.8 9.7----30.24- 65.8 66.9 61.7---
2024-07-26 12:30 pmWNW 7.8 9.7----30.24- 65.8 66.9 61.3---
2024-07-26 12:20 pmWNW 7.8 9.7 1.0 32.7WNW30.24- 65.8 66.9 61.7---
2024-07-26 12:10 pmWNW 9.7 9.7 1.0-2.7WNW30.25- 65.8 66.9 61.3---
2024-07-26 12:00 pmWNW 9.7 9.7----30.25+0.00 65.8 66.9 61.5---
2024-07-26 11:50 amWNW 7.8 9.7 1.0 32.7 NW30.25- 65.7 66.9 61.5---
2024-07-26 11:40 amWNW 7.8 9.7----30.25- 65.7 66.9 61.2---
2024-07-26 11:30 am W 7.8 9.7----30.24- 65.7 66.9 61.9---
2024-07-26 11:20 am W 7.8 9.7 1.0 32.7WNW30.24- 65.5 66.7 62.1---
2024-07-26 11:10 am W 7.8 9.7----30.24- 65.5 66.7 62.2---
2024-07-26 11:00 am W 7.8 9.7----30.24-0.01 65.3 66.7 62.4---
2024-07-26 10:50 am W 7.8 9.7 1.0 32.7WNW30.24- 65.3 66.7 62.6---
2024-07-26 10:40 am W 7.8 9.7 1.0-2.7WNW30.24- 65.3 66.7 63.0---
2024-07-26 10:30 am W 7.8 9.7----30.24- 65.3 66.7 63.0---
2024-07-26 10:20 am W 7.8 9.7 1.0 32.7WNW30.24- 65.7 66.6 63.0---
2024-07-26 10:10 am W 9.7 11.7 1.0-2.7WNW30.24- 65.5 66.6 62.8---
2024-07-26 10:00 am W 9.7 11.7----30.25+0.00 65.3 66.6 63.0---
2024-07-26 09:50 am W 9.7 11.7 1.0 32.8WNW30.25- 65.3 66.6 63.1---
2024-07-26 09:40 am W 9.7 11.7 1.0-2.8WNW30.24- 65.3 66.6 63.3---
2024-07-26 09:30 am W 9.7 11.7----30.25- 65.8 66.6 62.6---
2024-07-26 09:20 am W 7.8 9.7 1.0 42.9WNW30.25- 66.4 66.6 59.7---
2024-07-26 09:10 am W 7.8 9.7 1.0-2.9WNW30.25- 66.2 66.6 59.5---
2024-07-26 09:00 amWNW 7.8 9.7----30.25+0.02 66.2 66.6 59.2---
2024-07-26 08:50 amWNW 7.8 9.7 1.0 43.0WNW30.26- 66.2 66.6 59.4---
2024-07-26 08:40 amWNW 7.8 9.7----30.26- 66.2 66.6 59.4---
2024-07-26 08:30 amWNW 7.8 9.7----30.25- 66.0 66.6 59.7---
2024-07-26 08:20 amWNW 7.8 9.7 1.0 43.0WNW30.25- 66.0 66.6 59.9---
2024-07-26 08:10 amWNW 7.8 9.7 1.0-3.0WNW30.25- 65.8 66.6 59.7---
2024-07-26 08:00 amWNW 7.8 9.7----30.25+0.03 65.8 66.6 59.7---
2024-07-26 07:50 amWNW 7.8 7.8 1.0 43.0WNW30.25- 65.8 66.4 60.1---
2024-07-26 07:40 am NW 7.8 9.7----30.24- 65.8 66.4 60.1---
2024-07-26 07:30 am NW 7.8 9.7----30.24- 65.8 66.4 60.1---
2024-07-26 07:20 am NW 9.7 11.7 1.0 33.0WNW30.24- 65.8 66.4 59.9---
2024-07-26 07:10 am NW 7.8 11.7 1.0-3.0WNW30.25- 65.8 66.6 60.1---
2024-07-26 07:00 am NW 9.7 11.7----30.25+0.03 66.0 66.6 59.9---
2024-07-26 06:50 am NW 7.8 9.7 1.0 43.0WNW30.24- 65.8 66.6 59.7---
2024-07-26 06:40 amWNW 7.8 9.7----30.24- 65.8 66.6 59.7---
2024-07-26 06:30 amWNW 7.8 9.7----30.24- 65.8 66.6 59.9---
2024-07-26 06:20 am NW 7.8 9.7 1.0 43.0WNW30.24- 65.8 66.6 59.4---
2024-07-26 06:10 am NW 7.8 9.7 1.0-3.0WNW30.24- 65.8 66.6 59.2---
2024-07-26 06:00 am NW 9.7 11.7----30.23+0.01 66.0 66.6 59.2---
2024-07-26 05:50 am NW 9.7 11.7 1.0 43.1 NW30.23- 66.0 66.6 59.0---
2024-07-26 05:40 amWNW 7.8 9.7----30.23- 66.0 66.6 59.0---
2024-07-26 05:30 amWNW 7.8 9.7----30.23- 66.0 66.6 58.6---
2024-07-26 05:20 amWNW 9.7 11.7 1.3 43.1WNW30.23- 66.0 66.6 58.6---
2024-07-26 05:10 amWNW 9.7 11.7 1.3-3.1WNW30.23- 66.0 66.6 58.6---
2024-07-26 05:00 am NW 9.7 11.7----30.23+0.01 66.0 66.6 58.8---
2024-07-26 04:50 am NW 9.7 11.7 1.0 43.1 NW30.23- 66.0 66.6 58.8---
2024-07-26 04:40 am NW 9.7 11.7----30.22- 66.2 66.6 58.1---
2024-07-26 04:30 am NW 9.7 11.7----30.22- 66.2 66.6 58.1---
2024-07-26 04:20 am NW 7.8 9.7 1.3 33.1WNW30.22- 66.2 66.6 58.6---
2024-07-26 04:10 am NW 9.7 9.7----30.22- 66.2 66.6 58.5---
2024-07-26 04:00 am NW 7.8 9.7----30.22+0.00 66.2 66.6 58.5---
2024-07-26 03:50 am NW 9.7 11.7 1.0 43.0WNW30.22- 66.2 66.6 58.1---
2024-07-26 03:40 am NW 9.7 11.7 1.0-3.0WNW30.22- 66.2 66.6 58.3---
2024-07-26 03:30 am NW 9.7 11.7----30.22- 66.2 66.6 58.3---
2024-07-26 03:20 am NW 9.7 11.7 1.3 33.0WNW30.22- 66.2 66.6 59.0---
2024-07-26 03:10 am NW 9.7 11.7 1.3-3.0WNW30.22- 66.2 66.6 59.4---
2024-07-26 03:00 am NW 9.7 11.7----30.22+0.01 66.2 66.6 59.2---
2024-07-26 02:50 am NW 9.7 11.7 1.3 32.9WNW30.22- 66.4 66.6 59.0---
2024-07-26 02:40 am NW 9.7 11.7 1.3-2.9WNW30.22- 66.4 66.6 58.8---
2024-07-26 02:30 am NW 9.7 11.7----30.22- 66.4 66.6 58.8---
2024-07-26 02:20 am NW 9.7 11.7 1.3 32.9WNW30.22- 66.7 66.6 58.3---
2024-07-26 02:10 am NW 9.7 11.7 1.3-2.9WNW30.22- 66.7 66.6 57.7---
2024-07-26 02:00 am NW 11.7 13.6----30.22+0.00 66.7 66.6 57.4---
2024-07-26 01:50 am NW 9.7 11.7 1.3 32.9WNW30.22- 66.7 66.6 57.9---
2024-07-26 01:40 am NW 9.7 11.7 1.3-2.9WNW30.21- 66.7 66.6 57.6---
2024-07-26 01:30 am NW 9.7 11.7----30.22- 66.9 66.6 58.1---
2024-07-26 01:20 am NW 9.7 11.7 1.3 32.9WNW30.22- 66.9 66.6 58.3---
2024-07-26 01:10 am NW 9.7 13.6 1.3-2.9WNW30.22- 66.9 66.6 58.1---
2024-07-26 01:00 am NW 9.7 11.7----30.22+0.00 67.1 66.6 58.3---
2024-07-26 12:50 am NW 11.7 13.6 1.3 32.8WNW30.22- 67.1 66.6 58.5---
2024-07-26 12:40 am NW 9.7 13.6 1.3-2.8WNW30.22- 67.1 66.6 59.2---
2024-07-26 12:30 am NW 9.7 13.6----30.22- 67.1 66.6 58.8---
2024-07-26 12:20 am NW 11.7 13.6 1.3 32.8WNW30.22- 67.3 66.6 58.6---
2024-07-26 12:10 am NW 11.7 13.6----30.22- 67.3 66.6 58.3---
2024-07-26 12:00 am NW 11.7 13.6----30.21+0.01 67.3 66.7 58.3---
2024-07-25 11:50 pm NW 11.7 15.5 1.3 32.9 NW30.21- 67.5 66.7 58.3---
2024-07-25 11:40 pm NW 11.7 13.6 1.3-2.9 NW30.22- 67.6 66.7 58.5---
2024-07-25 11:30 pm NW 11.7 15.5----30.22- 67.5 66.7 58.5---
2024-07-25 11:20 pm NW 11.7 13.6 1.3 32.9WNW30.22- 67.5 66.7 59.2---
2024-07-25 11:10 pm NW 11.7 13.6 1.3-2.9WNW30.22- 67.6 66.7 59.5---
2024-07-25 11:00 pm NW 11.7 13.6----30.22+0.02 67.6 66.7 59.5---
2024-07-25 10:50 pm NW 9.7 11.7 1.3 43.0WNW30.22- 67.5 66.7 60.3---
2024-07-25 10:40 pm NW 9.7 11.7----30.22- 67.5 66.7 60.6---
2024-07-25 10:30 pmWNW 9.7 11.7----30.22- 67.3 66.7 61.5---
2024-07-25 10:20 pmWNW 9.7 11.7 1.6 33.1 NW30.22- 67.5 66.7 61.3---
2024-07-25 10:10 pmWNW 9.7 11.7 1.6-3.1 NW30.22- 67.5 66.7 61.2---
2024-07-25 10:00 pmWNW 9.7 11.7----30.21+0.01 67.6 66.7 61.0---
2024-07-25 09:50 pmWNW 9.7 11.7 1.6 43.1 NW30.21- 67.6 66.7 60.6---
2024-07-25 09:40 pmWNW 9.7 11.7 1.6-3.1 NW30.21- 67.8 66.7 60.3---
2024-07-25 09:30 pmWNW 9.7 11.7----30.21- 67.8 66.7 59.7---
2024-07-25 09:20 pmWNW 11.7 13.6 1.6 43.0WNW30.20- 68.0 66.9 59.4---
2024-07-25 09:10 pmWNW 11.7 13.6 1.6-3.0WNW30.20- 68.0 66.9 59.4---
2024-07-25 09:00 pmWNW 11.7 13.6----30.20+0.00 68.2 66.9 59.0---
2024-07-25 08:50 pmWNW 11.7 13.6 1.6 43.1WNW30.20- 68.4 66.9 58.3---

Detailed Wave Summary
for 45003 as of
(9:10 pm EDT on 07/26/2024)
0110 GMT on 07/27/2024:

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): 0.3 ft
5-day plot - Average Wave Period Average Wave Period (APD): 3.4 sec
Previous observations
TIME
(EDT)
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
2024-07-26 08:40 pm 0.3------ N/A 2.9
2024-07-26 08:10 pm 0.3------ N/A 2.9
2024-07-26 07:40 pm 0.3------ N/A 2.7
2024-07-26 07:10 pm 0.3------ N/A 2.7
2024-07-26 06:40 pm 0.3------ N/A 2.6
2024-07-26 06:10 pm 0.3------ N/A 2.6
2024-07-26 05:40 pm 0.3------ N/A 2.6
2024-07-26 05:10 pm 0.3------ N/A 2.4
2024-07-26 04:40 pm 0.3------ N/A 2.4
2024-07-26 04:10 pm 0.7------ N/A 2.4
2024-07-26 03:40 pm 0.7------ N/A 2.5
2024-07-26 03:10 pm 0.7------ N/A 2.5
2024-07-26 02:40 pm 0.7------ N/A 2.5
2024-07-26 02:10 pm 0.7------ N/A 2.5
2024-07-26 01:40 pm 0.7------ N/A 2.5
2024-07-26 01:10 pm 0.7------ N/A 2.5
2024-07-26 12:40 pm 1.0 0.0 6.2 NW 1.0 2.9 WNW N/A 2.6
2024-07-26 12:10 pm 1.0 0.0 16.0SSW 1.0 2.9 WNW N/A 2.7
2024-07-26 11:40 am 1.0 0.0 7.1 W 1.0 3.1 NW N/A 2.7
2024-07-26 11:10 am 1.0 0.0 4.5 NW 1.0 3.1 WNW N/A 2.7
2024-07-26 10:40 am 1.0 0.3 4.5WNW 1.0 2.9 WNW N/A 2.7
2024-07-26 10:10 am 1.0 0.0 5.9WSW 1.0 3.3 WNW N/A 2.7
2024-07-26 09:40 am 1.0 0.0 4.8 W 1.0 2.9 WNW N/A 2.8
2024-07-26 09:10 am 1.0 0.0 5.6NNW 1.0 3.6 WNW N/A 2.9
2024-07-26 08:40 am 1.0 0.0 7.7 NW 1.0 3.6 WNW N/A 3.0
2024-07-26 08:10 am 1.0 0.3 5.6WSW 1.0 3.7 WNW N/A 3.0
2024-07-26 07:40 am 1.0 0.3 7.1ESE 1.0 3.7 WNW N/A 3.0
2024-07-26 07:10 am 1.0 0.0 5.0WSW 1.0 3.3 WNW N/A 3.0
2024-07-26 06:40 am 1.0 0.0 5.3WSW 1.0 3.8 WNW N/A 3.0
2024-07-26 06:10 am 1.0 0.3 6.2SSW 1.0 3.6 WNW N/A 3.0
2024-07-26 05:40 am 1.0 0.3 4.8WNW 1.0 3.6 NW N/A 3.1
2024-07-26 05:10 am 1.3 0.0 5.9NNW 1.3 3.6 WNW N/A 3.1
2024-07-26 04:40 am 1.0 0.0 5.9 NW 1.0 3.7 NW N/A 3.1
2024-07-26 04:10 am 1.3 0.0 7.7ENE 1.3 3.4 WNW N/A 3.1
2024-07-26 03:40 am 1.0 0.0 5.9WSW 1.0 3.6 WNW N/A 3.0
2024-07-26 03:10 am 1.3 0.0 5.0 W 1.3 3.4 WNW N/A 3.0
2024-07-26 02:40 am 1.3 0.0 5.0WSW 1.3 3.3 WNW N/A 2.9
2024-07-26 02:10 am 1.3 0.0 10.0WNW 1.3 3.3 WNW N/A 2.9
2024-07-26 01:40 am 1.3 0.0 5.6NNW 1.3 3.4 WNW N/A 2.9
2024-07-26 01:10 am 1.3 0.0 6.2ESE 1.3 3.2 WNW N/A 2.9
2024-07-26 12:40 am 1.3 0.0 10.8ESE 1.3 3.3 WNW N/A 2.8
2024-07-26 12:10 am 1.3 0.0 7.1 NW 1.3 3.2 WNW N/A 2.8
2024-07-25 11:40 pm 1.3 0.0 7.1 N 1.3 3.3 NW N/A 2.9
2024-07-25 11:10 pm 1.3 0.0 6.2 N 1.3 3.4 WNW N/A 2.9
2024-07-25 10:40 pm 1.3 0.3 19.0NNW 1.3 3.6 WNW N/A 3.0
2024-07-25 10:10 pm 1.6 0.0 7.1WSW 1.6 3.4 NW N/A 3.1
2024-07-25 09:40 pm 1.6 0.0 6.7 NW 1.6 3.7 NW N/A 3.1
2024-07-25 09:10 pm 1.6 0.0 5.6 NW 1.6 3.7 WNW N/A 3.0

Plot of wave energy versus frequency (and period)