Station 46076 (LLNR 25982) - CAPE CLEARE - 17 NM South of Montague Is, AK Image indicating link to RSS feed of recent meteorological observations for station 46076


Conditions at 46076 as of
(9:30 am AKST)
1830 GMT on 11/14/2026:
     

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 ( 10 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 5.8 kts
5-day plot - Wind Gust Wind Gust (GST): 7.8 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):29.10 in
5-day plot - Air Temperature Air Temperature (ATMP): 44.2 °F
5-day plot - Water Temperature Water Temperature (WTMP): 47.7 °F
5-day plot - Wind Chill Wind Chill (CHILL): 40.5 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 5.8 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 5.8 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 (AKST)Pressure
9:27 am29.10 in
Highest 1-minute Wind Speed
Time (AKST)5-day plot - 1-Minute Wind Speed WSPD 5-day plot - 1-Minute Wind Direction WDIR
9:24 am 5.8 ktsNNE ( 20 deg true )
Previous observations
TIME
(AKST)
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
2026-11-14 09:20 am N 5.8 7.8 7.2 118.2 SE29.10- 44.1 47.5----
2026-11-14 09:10 am N 5.8 9.7 7.2-8.2 SE29.10- 44.1 47.5----
2026-11-14 09:00 am N 7.8 9.7----29.09+0.02 44.1 47.7----
2026-11-14 08:50 am N 5.8 9.7 7.2 128.6 SE29.09- 43.9 47.5----
2026-11-14 08:40 am N 5.8 9.7----29.09- 43.9 47.5----
2026-11-14 08:30 am N 5.8 7.8 7.2-8.6 SE29.09- 43.9 47.7----
2026-11-14 08:20 am N 5.8 7.8 6.6 128.2SSE29.09- 44.1-----
2026-11-14 08:10 am N 5.8 7.8 6.6-8.2SSE29.09- 44.1 47.5----
2026-11-14 08:00 am N 5.8 9.7----29.09+0.02 43.9 47.7----
2026-11-14 07:50 amNNE 5.8 7.8 6.2 128.2SSE29.09- 43.9 47.7----
2026-11-14 07:40 amNNE 7.8 9.7----29.08- 43.9 47.7----
2026-11-14 07:30 amNNE 5.8 7.8----29.08- 43.9-----
2026-11-14 07:20 amNNE 5.8 9.7 7.2 118.6SSE29.08- 43.9 47.7----
2026-11-14 07:10 amNNE 5.8 7.8 7.2-8.6SSE29.08- 43.9 47.7----
2026-11-14 07:00 am NE 5.8 7.8----29.08+0.01 43.9 47.7----
2026-11-14 06:50 amNNE 5.8 7.8 6.9 118.4SSE29.08- 43.9 47.7----
2026-11-14 06:40 am NE 5.8 7.8----29.08- 43.9 47.7----
2026-11-14 06:30 am NE 7.8 9.7----29.08- 44.1 47.7----
2026-11-14 06:20 amENE 7.8 11.7 6.6 128.4SSE29.08- 44.1 47.7----
2026-11-14 06:10 am NE 7.8 9.7 6.6-8.4SSE29.08- 44.1 47.7----
2026-11-14 06:00 amENE 7.8 9.7----29.08+0.00 44.1 47.7----
2026-11-14 05:50 am NE 7.8 9.7 6.6 128.5SSE29.08- 44.1 47.7----
2026-11-14 05:40 amENE 7.8 9.7 6.6-8.5SSE29.07- 43.9 47.7----
2026-11-14 05:30 am NE 7.8 11.7----29.07- 43.9 47.7----
2026-11-14 05:20 amENE 7.8 9.7 7.9 139.1SSE29.07- 43.9 47.7----
2026-11-14 05:10 amENE 7.8 9.7 7.9-9.1SSE29.07- 43.9 47.7----
2026-11-14 05:00 amENE 7.8 9.7----29.07+0.00 43.9 47.7----
2026-11-14 04:50 amENE 7.8 9.7 7.2 118.4SSE29.07- 43.9 47.7----
2026-11-14 04:40 amENE 5.8 7.8 7.2-8.4SSE29.07- 43.9 47.7----
2026-11-14 04:30 am NE 5.8 7.8----29.07- 43.7 47.7----
2026-11-14 04:20 am NE 5.8 7.8 9.2 139.5SSE29.07- 43.9-----
2026-11-14 04:10 am NE 5.8 9.7 9.2-9.5SSE29.07- 43.9 47.7----
2026-11-14 04:00 amNNE 7.8 9.7----29.07-0.01 43.9 47.7----
2026-11-14 03:50 amNNE 9.7 11.7 8.2 139.1SSE29.07- 43.9 47.7----
2026-11-14 03:40 amNNE 9.7 13.6 8.2-9.1SSE29.07- 43.9 47.7----
2026-11-14 03:30 amNNE 9.7 13.6----29.07- 43.9 47.7----
2026-11-14 03:20 amNNE 9.7 13.6 8.5-8.9SSE29.07-- 47.7----
2026-11-14 03:10 am N 9.7 13.6----29.07- 43.7 47.7----
2026-11-14 03:00 am N 9.7 13.6----29.07-0.01 43.7 47.5----
2026-11-14 02:50 am N 9.7 13.6 8.2 128.7SSE29.07- 43.7 47.5----
2026-11-14 02:40 am N 9.7 13.6----29.07- 43.5 47.7----
2026-11-14 02:30 am N 11.7 13.6----29.07- 43.3 47.5----
2026-11-14 02:20 am N 11.7 13.6 9.2 128.7 SE29.07- 43.2 47.7----
2026-11-14 02:10 am N 11.7 15.5 9.2-8.7 SE29.07- 43.2 47.5----
2026-11-14 02:00 am N 11.7 15.5----29.08-0.01 43.2 47.5----
2026-11-14 01:50 am N 11.7 15.5 9.8 128.9SSE29.08- 43.2 47.5----
2026-11-14 01:40 am N 11.7 15.5----29.08- 43.3 47.5----
2026-11-14 01:30 am N 11.7 15.5----29.08- 43.3 47.5----
2026-11-14 01:20 am N 13.6 15.5 9.5 138.9SSE29.08- 43.2 47.5----
2026-11-14 01:10 am N 13.6 17.5 9.5-8.9SSE29.08- 43.2 47.5----
2026-11-14 01:00 am N 13.6 17.5----29.08-0.02 43.0 47.5----
2026-11-14 12:50 am N 13.6 17.5 10.5 129.2SSE29.08- 42.8 47.5----
2026-11-14 12:40 am N 13.6 17.5----29.08- 42.8 47.5----
2026-11-14 12:30 am N 13.6 19.4----29.08- 42.6 47.5----
2026-11-14 12:20 amNNW 13.6 17.5 8.5 128.5 SE29.08- 42.4 47.3----
2026-11-14 12:10 amNNW 13.6 17.5 8.5-8.5 SE29.08- 42.4 47.3----
2026-11-14 12:00 amNNW 13.6 17.5----29.08-0.03 42.3 47.3----
2026-11-13 11:50 pmNNW 13.6 15.5 10.2 129.1 SE29.08- 42.4 47.5----
2026-11-13 11:40 pmNNW 13.6 19.4----29.09- 42.3 47.5----
2026-11-13 11:30 pmNNW 11.7 15.5----29.09- 42.4 47.5----
2026-11-13 11:20 pmNNW 13.6 15.5 10.8 139.6 SE29.09- 42.3 47.5----
2026-11-13 11:10 pmNNW 13.6 17.5 10.8-9.6 SE29.09- 42.3 47.5----
2026-11-13 11:00 pmNNW 13.6 17.5----29.09-0.03 42.1 47.5----
2026-11-13 10:50 pmNNW 13.6 17.5 10.2 139.4 SE29.09- 42.3 47.5----
2026-11-13 10:40 pmNNW 11.7 17.5----29.09- 42.1 47.5----
2026-11-13 10:30 pmNNW 13.6 17.5----29.09- 42.1 47.5----
2026-11-13 10:20 pmNNW 13.6 17.5 9.8 129.0 SE29.10- 42.3 47.5----
2026-11-13 10:10 pmNNW 13.6 17.5 9.8-9.0 SE29.10- 42.4 47.5----
2026-11-13 10:00 pmNNW 13.6 17.5----29.10-0.04 42.6 47.5----
2026-11-13 09:50 pmNNW 13.6 17.5 10.8 139.6 SE29.10- 42.6 47.5----
2026-11-13 09:40 pmNNW 13.6 17.5 10.8-9.6 SE29.10- 42.8 47.5----
2026-11-13 09:30 pmNNW 11.7 15.5----29.11- 43.0 47.5----
2026-11-13 09:20 pmNNW 11.7 15.5 11.2 1310.1ESE29.11- 43.0 47.5----
2026-11-13 09:10 pm N 11.7 15.5 11.2-10.1ESE29.11- 43.2 47.5----
2026-11-13 09:00 pmNNW 11.7 13.6----29.11-0.04 43.2 47.5----
2026-11-13 08:50 pmNNW 11.7 15.5 10.2 1210.0 SE29.11- 43.2 47.5----
2026-11-13 08:40 pmNNW 9.7 15.5 10.2-10.0 SE29.11- 43.3 47.7----
2026-11-13 08:30 pmNNW 9.7 13.6----29.11- 43.2 47.7----
2026-11-13 08:20 pmNNW 9.7 15.5 8.9 129.7 SE29.12- 43.2 47.7----
2026-11-13 08:10 pmNNW 9.7 13.6 8.9-9.7 SE29.12- 43.3 47.7----
2026-11-13 08:00 pmNNW 9.7 13.6----29.12-0.02 43.5 47.7----
2026-11-13 07:50 pmNNW 9.7 13.6 8.9 129.3 SE29.12- 43.5 47.7----
2026-11-13 07:40 pmNNW 9.7 13.6 8.9-9.3 SE29.13- 43.7 47.5----
2026-11-13 07:30 pmNNW 9.7 13.6----29.13- 43.7 47.5----
2026-11-13 07:20 pmNNW 9.7 13.6 8.5 129.3SSE29.13- 43.5 47.5----
2026-11-13 07:10 pm N 7.8 11.7 8.5-9.3SSE29.13- 43.5 47.5----
2026-11-13 07:00 pmNNW 7.8 9.7----29.13-0.03 43.5 47.5----
2026-11-13 06:50 pm N 7.8 9.7 8.2 118.7SSE29.14- 43.5 47.3----
2026-11-13 06:40 pmNNW 5.8 9.7----29.14- 43.3 47.1----
2026-11-13 06:30 pm N 5.8 9.7----29.14- 43.2 47.3----
2026-11-13 06:20 pm N 3.9 7.8 8.2 129.4SSE29.14- 43.2 47.3----
2026-11-13 06:10 pm N 3.9 7.8 8.2-9.4SSE29.15- 43.0 47.3----
2026-11-13 06:00 pmNNW 1.9 5.8----29.14-0.03 43.0 47.3----
2026-11-13 05:50 pm NW 1.9 3.9 8.5 129.6SSE29.15- 42.6 47.3----
2026-11-13 05:40 pmWNW 1.9 3.9----29.15- 42.6 47.3----
2026-11-13 05:30 pmWNW 1.9 3.9----29.15- 42.6 47.1----
2026-11-13 05:20 pmWNW 1.9 5.8 8.2 129.1SSE29.15- 42.6 47.1----
2026-11-13 05:10 pmWNW 1.9 5.8 8.2-9.1SSE29.15- 42.6 47.5----
2026-11-13 05:00 pmWNW 1.9 3.9----29.15-0.06 42.6 47.3----
2026-11-13 04:50 pm NW 1.9 3.9 7.5 129.0SSE29.15- 42.4 47.3----
2026-11-13 04:40 pm- 0.0 1.9 7.5-9.0SSE29.15- 42.6 47.5----
2026-11-13 04:30 pm- 0.0 1.9----29.15- 42.6 47.5----
2026-11-13 04:20 pmWNW 1.9 3.9 7.2 118.8SSE29.15- 42.8 47.5----
2026-11-13 04:10 pm NW 1.9 3.9 7.2-8.8SSE29.16- 43.0 47.5----
2026-11-13 04:00 pm- 0.0 3.9----29.16-0.07 43.0 47.5----
2026-11-13 03:50 pmNNW 1.9 3.9 6.6-8.4 S29.16- 42.8 47.5----
2026-11-13 03:40 pm--- 6.6 118.4 S--------
2026-11-13 03:30 pm NW 1.9 3.9----29.17- 43.3 47.5----
2026-11-13 03:20 pmNNW 1.9 5.8 6.2 138.1SSE29.17- 43.3 47.5----
2026-11-13 03:10 pm N 3.9 5.8----29.18- 43.3 47.5----
2026-11-13 03:00 pm N 1.9 3.9----29.18-0.08 43.5 47.5----
2026-11-13 02:50 pmNNE 1.9 5.8 6.6 128.1SSE29.18- 43.5 47.5----
2026-11-13 02:40 pmNNW 1.9 5.8----29.19- 43.3 47.5----
2026-11-13 02:10 pm N 3.9 5.8 6.9-8.3SSE29.20- 42.6 47.3----
2026-11-13 02:00 pm N 3.9 5.8----29.21-0.07 42.8 47.5----
2026-11-13 01:50 pm N 3.9 7.8 6.9 128.3SSE29.21- 42.8 47.5----
2026-11-13 01:40 pm N 3.9 5.8----29.22- 42.8 47.7----
2026-11-13 01:30 pm N 3.9 5.8----29.22- 43.0 47.7----
2026-11-13 01:20 pmNNE 3.9 7.8 6.9 118.4SSE29.23- 43.0 47.7----
2026-11-13 01:10 pm N 3.9 5.8 6.9-8.4SSE29.23- 43.0 47.7----
2026-11-13 01:00 pm N 3.9 7.8----29.23-0.06 43.2 47.7----
2026-11-13 12:50 pm N 3.9 7.8 7.2 108.3SSE29.23- 43.2 47.7----
2026-11-13 12:40 pmNNE 3.9 7.8 7.2-8.3SSE29.24- 43.0 47.8----
2026-11-13 12:30 pm N 5.8 9.7----29.25- 43.0 47.8----
2026-11-13 12:20 pmNNE 3.9 7.8 6.2 117.7SSE29.25- 43.0 47.8----
2026-11-13 12:10 pm NE 3.9 5.8 6.2-7.7SSE29.26- 43.0 47.8----
2026-11-13 12:00 pm NE 5.8 7.8----29.26-0.05 43.0 47.8----
2026-11-13 11:50 am NE 5.8 7.8 7.2 98.1SSE29.26- 43.0 47.8----
2026-11-13 11:40 amNNE 5.8 7.8----29.26- 43.0 47.8----
2026-11-13 11:30 am NE 5.8 7.8----29.27- 43.0 47.8----
2026-11-13 11:20 am NE 5.8 9.7 6.9 117.8SSE29.27- 43.2 47.8----
2026-11-13 11:10 am NE 5.8 7.8 6.9-7.8SSE29.28- 43.2 47.8----
2026-11-13 11:00 am NE 7.8 9.7----29.28-0.05 43.0 47.8----
2026-11-13 10:50 am NE 7.8 9.7 6.2 117.7SSE29.28- 43.2 47.8----
2026-11-13 10:40 am NE 7.8 11.7 6.2-7.7SSE29.28- 43.2 47.8----
2026-11-13 10:30 am NE 7.8 11.7----29.29- 43.2 47.8----
2026-11-13 10:20 am NE 9.7 11.7 5.9 117.4SSE29.29- 43.2 47.8----
2026-11-13 10:10 am NE 7.8 11.7 5.9-7.4SSE29.29- 43.2 47.8----
2026-11-13 10:00 am NE 9.7 11.7----29.30-0.04 43.2 47.8----
2026-11-13 09:50 amNNE 9.7 11.7 6.2 117.2SSE29.30- 43.3 47.8----
2026-11-13 09:40 amNNE 9.7 11.7 6.2-7.2SSE29.30- 43.2 47.8----
2026-11-13 09:30 am NE 7.8 11.7----29.31- 43.0 47.8----
2026-11-13 09:20 am NE 9.7 11.7 5.6 116.8 S29.31- 43.0 47.8----
2026-11-13 09:10 am NE 7.8 11.7 5.6-6.8 S29.31- 43.0 47.8----
2026-11-13 09:00 am NE 7.8 9.7----29.31-0.05 43.0 47.8----
2026-11-13 08:50 am NE 9.7 13.6 5.6 106.7 SE29.32- 43.0 47.8----

Wave Summary
for 46076 as of (9:10 am AKST)
1810 GMT on 11/14/2026:

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): 7.2 ft
5-day plot - Swell Height Swell Height (SwH): 6.9 ft
5-day plot - Swell Period Swell Period (SwP): 11.4 sec
5-day plot - Swell Direction Swell Direction (SwD): SE
5-day plot - Wind Wave Height Wind Wave Height (WWH): 1.3 ft
5-day plot - Wind Wave Period Wind Wave Period (WWP): 4.0 sec
5-day plot - Wind Wave Direction Wind Wave Direction (WWD):ENE
5-day plot - Wave Steepness Wave Steepness (STEEPNESS): SWELL
5-day plot - Average Wave Period Average Wave Period (APD): 8.2 sec
Previous observations
TIME
(AKST)
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
2026-11-14 08:40 am 7.2 7.2 12.1 SE 1.3 4.0 ENE SWELL 8.6
2026-11-14 08:10 am 6.6 6.6 12.1SSE 1.3 4.0 NE SWELL 8.2
2026-11-14 07:40 am 6.2 6.2 12.1SSE 1.3 4.0 ENE SWELL 8.2
2026-11-14 07:10 am 7.2 7.2 11.4SSE 1.3 3.8 NW SWELL 8.6
2026-11-14 06:40 am 6.9 6.9 10.8SSE 1.0 3.8 E SWELL 8.4
2026-11-14 06:10 am 6.6 6.6 12.1SSE 1.0 3.8 NW SWELL 8.4
2026-11-14 05:40 am 6.6 6.6 12.1SSE 1.3 4.0 E SWELL 8.5
2026-11-14 05:10 am 7.9 7.9 12.9SSE 1.0 4.0 ENE SWELL 9.1
2026-11-14 04:40 am 7.2 6.9 11.4SSE 1.3 3.3 NNE SWELL 8.4
2026-11-14 04:10 am 9.2 9.2 12.9SSE 1.3 3.8 NE SWELL 9.5
2026-11-14 03:40 am 8.2 8.2 12.9SSE 1.6 4.5 ESE SWELL 9.1
2026-11-14 03:10 am 8.5 8.2 12.9SSE 1.6 3.3 N SWELL 8.9
2026-11-14 02:40 am 8.2 7.9 12.1SSE 1.6 4.8 ESE SWELL 8.7
2026-11-14 02:10 am 9.2 8.9 12.1 SE 2.3 3.3 N SWELL 8.7
2026-11-14 01:40 am 9.8 9.5 12.1SSE 2.3 4.8 ESE SWELL 8.9
2026-11-14 01:10 am 9.5 9.2 12.9SSE 2.6 6.2 SSE SWELL 8.9
2026-11-14 12:40 am 10.5 10.2 12.1SSE 2.6 5.3 SSE SWELL 9.2
2026-11-14 12:10 am 8.5 8.2 12.1 SE 2.6 3.6 NNW SWELL 8.5
2026-11-13 11:40 pm 10.2 9.8 12.1 SE 2.6 3.6 NNW SWELL 9.1
2026-11-13 11:10 pm 10.8 10.5 12.9 SE 2.3 5.9 S SWELL 9.6
2026-11-13 10:40 pm 10.2 10.2 12.9 SE 2.3 5.9 S SWELL 9.4
2026-11-13 10:10 pm 9.8 9.5 12.1 SE 2.3 5.0 SE SWELL 9.0
2026-11-13 09:40 pm 10.8 10.5 12.9 SE 2.3 5.0 SE SWELL 9.6
2026-11-13 09:10 pm 11.2 11.2 12.9ESE 2.0 4.0 ENE SWELL 10.1
2026-11-13 08:40 pm 10.2 10.2 12.1 SE 1.6 5.0 SE SWELL 10.0
2026-11-13 08:10 pm 8.9 8.9 12.1 SE 1.3 4.5 ESE SWELL 9.7
2026-11-13 07:40 pm 8.9 8.5 12.1 SE 1.3 4.3 ESE SWELL 9.3
2026-11-13 07:10 pm 8.5 8.2 12.1SSE 1.0 3.7 SE SWELL 9.3
2026-11-13 06:40 pm 8.2 7.9 10.8SSE 1.0 3.8 E SWELL 8.7
2026-11-13 06:10 pm 8.2 8.2 12.1SSE 1.0 3.8 E SWELL 9.4
2026-11-13 05:40 pm 8.5 8.2 12.1SSE 1.0 3.7 NE SWELL 9.6
2026-11-13 05:10 pm 8.2 8.2 12.1SSE 1.0 4.0 E SWELL 9.1
2026-11-13 04:40 pm 7.5 7.5 12.1SSE 1.0 3.2 ENE SWELL 9.0
2026-11-13 04:10 pm 7.2 7.2 10.8SSE 1.0 4.0 E SWELL 8.8
2026-11-13 03:40 pm 6.6 6.2 10.8 S 1.0 4.0 ENE SWELL 8.4
2026-11-13 03:10 pm 6.2 6.2 12.9SSE 1.0 3.7 E SWELL 8.1
2026-11-13 02:40 pm 6.6 6.6 12.1SSE 1.0 4.0 ENE SWELL 8.1
2026-11-13 02:10 pm 6.9 6.9 10.8SSE 1.0 3.8 E SWELL 8.3
2026-11-13 01:40 pm 6.9 6.9 12.1SSE 1.3 4.0 ENE SWELL 8.3
2026-11-13 01:10 pm 6.9 6.9 11.4SSE 1.0 4.0 E SWELL 8.4
2026-11-13 12:40 pm 7.2 7.2 10.0SSE 1.3 3.6 NE AVERAGE 8.3
2026-11-13 12:10 pm 6.2 5.9 10.8SSE 1.3 3.3 NNE SWELL 7.7
2026-11-13 11:40 am 7.2 6.9 9.1SSE 1.3 3.3 E AVERAGE 8.1
2026-11-13 11:10 am 6.9 6.6 10.8SSE 1.6 3.7 ENE SWELL 7.8
2026-11-13 10:40 am 6.2 6.2 10.8SSE 1.6 4.2 ENE SWELL 7.7
2026-11-13 10:10 am 5.9 5.6 10.8SSE 1.6 4.2 ENE SWELL 7.4
2026-11-13 09:40 am 6.2 5.9 11.4SSE 2.0 4.3 E SWELL 7.2
2026-11-13 09:10 am 5.6 5.2 10.8 S 1.6 3.6 ENE SWELL 6.8

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