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NY · NOAA 8516945 · 40° 49′ N · 73° 46′ W
Tides at Kings Point
A semidiurnal tide (form factor 0.12), spring this week. Predicted from the station's 34 harmonic constants; heights above mean lower low water, times in station time. Weather is not in these numbers.
This week
| When | Water | Height |
|---|---|---|
| Sun, Oct 25, 5:34 PM | Low | -0.4 ft |
| Sun, Oct 25, 11:17 PM | High | 8.0 ft |
| Mon, Oct 26, 5:27 AM | Low | 0.0 ft |
| Mon, Oct 26, 11:25 AM | High | 9.1 ft |
| Mon, Oct 26, 6:17 PM | Low | -0.6 ft |
| Tue, Oct 27, 12:01 AM | High | 8.1 ft |
| Tue, Oct 27, 6:11 AM | Low | -0.0 ft |
| Tue, Oct 27, 12:09 PM | High | 9.3 ft |
| Tue, Oct 27, 7:03 PM | Low | -0.6 ft |
| Wed, Oct 28, 12:48 AM | High | 8.0 ft |
| Wed, Oct 28, 6:58 AM | Low | 0.0 ft |
| Wed, Oct 28, 12:57 PM | High | 9.2 ft |
| Wed, Oct 28, 7:52 PM | Low | -0.5 ft |
| Thu, Oct 29, 1:38 AM | High | 7.8 ft |
| Thu, Oct 29, 7:47 AM | Low | 0.2 ft |
| Thu, Oct 29, 1:49 PM | High | 8.9 ft |
| Thu, Oct 29, 8:47 PM | Low | -0.2 ft |
| Fri, Oct 30, 2:33 AM | High | 7.5 ft |
| Fri, Oct 30, 8:42 AM | Low | 0.5 ft |
| Fri, Oct 30, 2:45 PM | High | 8.5 ft |
| Fri, Oct 30, 9:58 PM | Low | 0.2 ft |
| Sat, Oct 31, 3:37 AM | High | 7.3 ft |
| Sat, Oct 31, 9:50 AM | Low | 0.8 ft |
| Sat, Oct 31, 3:50 PM | High | 8.0 ft |
| Sat, Oct 31, 11:21 PM | Low | 0.4 ft |
| Sun, Nov 1, 3:59 AM | High | 7.2 ft |
| Sun, Nov 1, 10:32 AM | Low | 1.0 ft |
The constants that make it
| Constituent | Amplitude | Phase |
|---|---|---|
| M2 | 3.8 ft | 115.7° |
| N2 | 0.8 ft | 94.5° |
| S2 | 0.6 ft | 142.5° |
| K1 | 0.3 ft | 193.0° |
| SA | 0.3 ft | 142.8° |
| M6 | 0.3 ft | 160.1° |
| L2 | 0.2 ft | 135.8° |
| O1 | 0.2 ft | 220.9° |
The eight largest of 34. Source: NOAA CO-OPS harmonic constituents for 8516945, public domain.
The year as a print
The last two days, measured
At Sun, Oct 25 16:24 the gauge read 0.5 ft, 0.4 ft above the computed curve: wind and pressure, not the moon. The widest gap of the two days was 1.4 ft, at Sat, Oct 24 07:48.
- Computed here, from the constants
- NOAA's own prediction
- Measured at the gauge, every six minutes
The last twelve hours as numbers
| Station time | Measured | Computed here | NOAA |
|---|---|---|---|
| Sun, Oct 25 05:00 | 0.91 ft | 0.17 ft | 0.14 ft |
| Sun, Oct 25 06:00 | 0.95 ft | 0.60 ft | 0.57 ft |
| Sun, Oct 25 07:00 | 2.20 ft | 1.85 ft | 1.83 ft |
| Sun, Oct 25 08:00 | 4.96 ft | 4.22 ft | 4.21 ft |
| Sun, Oct 25 09:00 | 7.39 ft | 6.90 ft | 6.89 ft |
| Sun, Oct 25 10:00 | 8.55 ft | 8.52 ft | 8.52 ft |
| Sun, Oct 25 11:00 | 8.82 ft | 8.80 ft | 8.81 ft |
| Sun, Oct 25 12:00 | 8.74 ft | 8.27 ft | 8.29 ft |
| Sun, Oct 25 13:00 | 7.54 ft | 7.07 ft | 7.10 ft |
| Sun, Oct 25 14:00 | 5.17 ft | 5.03 ft | 5.06 ft |
| Sun, Oct 25 15:00 | 2.60 ft | 2.54 ft | 2.58 ft |
| Sun, Oct 25 16:00 | 0.81 ft | 0.57 ft | 0.60 ft |
Measured heights from NOAA CO-OPS station 8516945, preliminary, above mean lower low water. The print carries the computed curve only: one year, no weather.