PAINTED SHORES
MENUBegin
HI · NOAA 1611400 · 21° 57′ N · 159° 21′ W
Tides at Nawiliwili
A mixed, mainly semidiurnal tide (form factor 1.12), spring this week. Predicted from the station's 30 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, 2:41 PM | High | 1.2 ft |
| Sun, Oct 25, 8:39 PM | Low | -0.1 ft |
| Mon, Oct 26, 3:55 AM | High | 2.3 ft |
| Mon, Oct 26, 10:30 AM | Low | 0.6 ft |
| Mon, Oct 26, 3:13 PM | High | 1.1 ft |
| Mon, Oct 26, 9:09 PM | Low | -0.1 ft |
| Tue, Oct 27, 4:39 AM | High | 2.4 ft |
| Tue, Oct 27, 11:32 AM | Low | 0.6 ft |
| Tue, Oct 27, 3:44 PM | High | 0.9 ft |
| Tue, Oct 27, 9:41 PM | Low | -0.1 ft |
| Wed, Oct 28, 5:27 AM | High | 2.4 ft |
| Wed, Oct 28, 12:46 PM | Low | 0.6 ft |
| Wed, Oct 28, 4:17 PM | High | 0.8 ft |
| Wed, Oct 28, 10:18 PM | Low | -0.1 ft |
| Thu, Oct 29, 6:20 AM | High | 2.4 ft |
| Thu, Oct 29, 2:30 PM | Low | 0.6 ft |
| Thu, Oct 29, 4:53 PM | High | 0.7 ft |
| Thu, Oct 29, 10:59 PM | Low | 0.0 ft |
| Fri, Oct 30, 7:21 AM | High | 2.3 ft |
| Fri, Oct 30, 4:34 PM | Low | 0.6 ft |
| Fri, Oct 30, 6:13 PM | High | 0.6 ft |
| Fri, Oct 30, 11:49 PM | Low | 0.2 ft |
| Sat, Oct 31, 8:27 AM | High | 2.1 ft |
| Sat, Oct 31, 5:21 PM | Low | 0.5 ft |
| Sat, Oct 31, 8:51 PM | High | 0.6 ft |
| Sun, Nov 1, 1:01 AM | Low | 0.4 ft |
| Sun, Nov 1, 9:36 AM | High | 2.0 ft |
The constants that make it
| Constituent | Amplitude | Phase |
|---|---|---|
| M2 | 0.5 ft | 48.1° |
| K1 | 0.5 ft | 230.3° |
| O1 | 0.3 ft | 221.3° |
| S2 | 0.2 ft | 45.3° |
| SA | 0.2 ft | 181.1° |
| P1 | 0.2 ft | 228.0° |
| N2 | 0.1 ft | 35.0° |
| Q1 | 0.0 ft | 212.4° |
The eight largest of 30. Source: NOAA CO-OPS harmonic constituents for 1611400, public domain.
The year as a print
The last two days, measured
At Sun, Oct 25 10:24 the gauge read 0.7 ft, on the computed curve to the tenth of a foot: a quiet sky.
- 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 |
|---|---|---|---|
| Sat, Oct 24 23:00 | 0.87 ft | 0.73 ft | 0.72 ft |
| Sun, Oct 25 00:00 | 1.36 ft | 1.20 ft | 1.19 ft |
| Sun, Oct 25 01:00 | 1.80 ft | 1.63 ft | 1.63 ft |
| Sun, Oct 25 02:00 | 2.15 ft | 1.95 ft | 1.95 ft |
| Sun, Oct 25 03:00 | 2.34 ft | 2.10 ft | 2.11 ft |
| Sun, Oct 25 04:00 | 2.31 ft | 2.05 ft | 2.06 ft |
| Sun, Oct 25 05:00 | 2.01 ft | 1.81 ft | 1.82 ft |
| Sun, Oct 25 06:00 | 1.59 ft | 1.45 ft | 1.46 ft |
| Sun, Oct 25 07:00 | 1.22 ft | 1.05 ft | 1.07 ft |
| Sun, Oct 25 08:00 | 0.85 ft | 0.74 ft | 0.76 ft |
| Sun, Oct 25 09:00 | 0.66 ft | 0.56 ft | 0.58 ft |
| Sun, Oct 25 10:00 | 0.64 ft | 0.55 ft | 0.57 ft |
Measured heights from NOAA CO-OPS station 1611400, preliminary, above mean lower low water. The print carries the computed curve only: one year, no weather.