PAINTED SHORES
MENUBegin
DE · NOAA 8557380 · 38° 47′ N · 75° 07′ W
Tides at Lewes
A mixed, mainly semidiurnal tide (form factor 0.26), 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, 8:44 PM | High | 4.5 ft |
| Mon, Oct 26, 2:37 AM | Low | 0.0 ft |
| Mon, Oct 26, 9:04 AM | High | 5.3 ft |
| Mon, Oct 26, 3:20 PM | Low | -0.0 ft |
| Mon, Oct 26, 9:29 PM | High | 4.4 ft |
| Tue, Oct 27, 3:20 AM | Low | -0.1 ft |
| Tue, Oct 27, 9:49 AM | High | 5.5 ft |
| Tue, Oct 27, 4:07 PM | Low | -0.1 ft |
| Tue, Oct 27, 10:17 PM | High | 4.2 ft |
| Wed, Oct 28, 4:04 AM | Low | -0.1 ft |
| Wed, Oct 28, 10:37 AM | High | 5.5 ft |
| Wed, Oct 28, 4:57 PM | Low | 0.0 ft |
| Wed, Oct 28, 11:07 PM | High | 4.1 ft |
| Thu, Oct 29, 4:51 AM | Low | 0.0 ft |
| Thu, Oct 29, 11:28 AM | High | 5.4 ft |
| Thu, Oct 29, 5:52 PM | Low | 0.2 ft |
| Fri, Oct 30, 12:02 AM | High | 3.9 ft |
| Fri, Oct 30, 5:45 AM | Low | 0.2 ft |
| Fri, Oct 30, 12:25 PM | High | 5.3 ft |
| Fri, Oct 30, 6:53 PM | Low | 0.3 ft |
| Sat, Oct 31, 1:03 AM | High | 3.7 ft |
| Sat, Oct 31, 6:45 AM | Low | 0.4 ft |
| Sat, Oct 31, 1:26 PM | High | 5.0 ft |
| Sat, Oct 31, 7:58 PM | Low | 0.5 ft |
| Sun, Nov 1, 1:08 AM | High | 3.7 ft |
| Sun, Nov 1, 6:52 AM | Low | 0.6 ft |
| Sun, Nov 1, 1:32 PM | High | 4.8 ft |
The constants that make it
| Constituent | Amplitude | Phase |
|---|---|---|
| M2 | 1.9 ft | 31.2° |
| N2 | 0.4 ft | 9.3° |
| S2 | 0.3 ft | 57.2° |
| K1 | 0.3 ft | 202.2° |
| SA | 0.3 ft | 148.1° |
| O1 | 0.3 ft | 189.4° |
| SSA | 0.2 ft | 47.0° |
| P1 | 0.1 ft | 198.1° |
The eight largest of 34. Source: NOAA CO-OPS harmonic constituents for 8557380, public domain.
The year as a print
The last two days, measured
At Sun, Oct 25 16:24 the gauge read 1.4 ft, 0.3 ft above the computed curve: wind and pressure, not the moon. The widest gap of the two days was 1.6 ft, at Fri, Oct 23 22:06.
- 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 | 3.24 ft | 2.47 ft | 2.47 ft |
| Sun, Oct 25 06:00 | 4.42 ft | 3.65 ft | 3.65 ft |
| Sun, Oct 25 07:00 | 5.30 ft | 4.59 ft | 4.59 ft |
| Sun, Oct 25 08:00 | 5.76 ft | 5.05 ft | 5.06 ft |
| Sun, Oct 25 09:00 | 5.68 ft | 4.96 ft | 4.97 ft |
| Sun, Oct 25 10:00 | 5.04 ft | 4.33 ft | 4.34 ft |
| Sun, Oct 25 11:00 | 4.08 ft | 3.26 ft | 3.28 ft |
| Sun, Oct 25 12:00 | 2.79 ft | 2.02 ft | 2.03 ft |
| Sun, Oct 25 13:00 | 1.62 ft | 0.89 ft | 0.91 ft |
| Sun, Oct 25 14:00 | 0.80 ft | 0.21 ft | 0.22 ft |
| Sun, Oct 25 15:00 | 0.69 ft | 0.16 ft | 0.17 ft |
| Sun, Oct 25 16:00 | 1.05 ft | 0.69 ft | 0.69 ft |
Measured heights from NOAA CO-OPS station 8557380, preliminary, above mean lower low water. The print carries the computed curve only: one year, no weather.