Norwalk Harbor tidal current predictions
Flooding 0.2 kt now, toward NNW (339°), easing. Slack at 11:20 PM, then ebb to 0.4 kt at Sat 3:00 AM.
Now
Today, Fri, Sep 25, at 2 ft deep.
- Now
- Flood 0.2 ktToward NNW (339°)
- Next slack
- 11:20 PMEDT
- Next max flood
- 0.5 ktSat 8:00 AM
- Next max ebb
- 0.4 ktSat 3:00 AM
Knots along the channel: above the line the flood, running in toward NNW (339°); below it the ebb, running out toward SSE (148°). Times are Eastern Daylight Time. Today: ebb 0.4 kt 2:12 AM, slack 5:01 AM, flood 0.5 kt 7:19 AM, slack 11:26 AM, ebb 0.5 kt 2:49 PM, slack 5:30 PM, flood 0.5 kt 7:42 PM, slack 11:20 PM.
Alerts in force1
National Weather Service marine and coastal products at this station’s position.
- Gale Warning Gale Warning issued September 25 at 2:50PM EDT until September 27 at 6:00AM EDT by NWS Upton NYUntil Sun 6:00 AM
Full text
* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and seas 4 to 7 feet. * WHERE...Long Island Sound west of Port Jefferson and New Haven. * WHEN...Until 6 AM EDT Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.
7-day current table
Strongest flood this week 0.7 kt, Tue, Sep 29 at 10:12 AM. Strongest ebb 0.6 kt, Tue, Sep 29 at 5:56 PM.
| Time | Event | Speed | Toward |
|---|---|---|---|
| Fri, Sep 25 | |||
| 2:12 AM | Maximum ebb | 0.4 kt | SSE (148°) |
| 5:01 AM | Slack water | ||
| 7:19 AM | Maximum flood | 0.5 kt | NNW (339°) |
| 11:26 AM | Slack water | ||
| 2:49 PM | Maximum ebb | 0.5 kt | SSE (148°) |
| 5:30 PM | Slack water | ||
| 7:42 PM | Maximum flood | 0.5 kt | NNW (339°) |
| 11:20 PM | Slack water | ||
| Sat, Sep 26 | |||
| 3:00 AM | Maximum ebb | 0.4 kt | SSE (148°) |
| 5:41 AM | Slack water | ||
| 8:00 AM | Maximum flood | 0.5 kt | NNW (339°) |
| 11:57 AM | Slack water | ||
| 3:39 PM | Maximum ebb | 0.5 kt | SSE (148°) |
| 6:16 PM | Slack water | ||
| 8:25 PM | Maximum flood | 0.5 kt | NNW (339°) |
| 11:54 PM | Slack water | ||
| Sun, Sep 27 | |||
| 3:48 AM | Maximum ebb | 0.5 kt | SSE (148°) |
| 6:22 AM | Slack water | ||
| 8:42 AM | Maximum flood | 0.6 kt | NNW (339°) |
| 12:24 PM | Slack water | ||
| 4:26 PM | Maximum ebb | 0.5 kt | SSE (148°) |
| 7:01 PM | Slack water | ||
| 9:10 PM | Maximum flood | 0.6 kt | NNW (339°) |
| Mon, Sep 28 | |||
| 12:37 AM | Slack water | ||
| 4:36 AM | Maximum ebb | 0.5 kt | SSE (148°) |
| 7:05 AM | Slack water | ||
| 9:26 AM | Maximum flood | 0.7 kt | NNW (339°) |
| 12:55 PM | Slack water | ||
| 5:12 PM | Maximum ebb | 0.6 kt | SSE (148°) |
| 7:47 PM | Slack water | ||
| 9:57 PM | Maximum flood | 0.6 kt | NNW (339°) |
| Tue, Sep 29 | |||
| 1:25 AM | Slack water | ||
| 5:24 AM | Maximum ebb | 0.5 kt | SSE (148°) |
| 7:50 AM | Slack water | ||
| 10:12 AM | Maximum flood | 0.7 kt | NNW (339°) |
| 1:32 PM | Slack water | ||
| 5:56 PM | Maximum ebb | 0.6 kt | SSE (148°) |
| 8:32 PM | Slack water | ||
| 10:46 PM | Maximum flood | 0.6 kt | NNW (339°) |
| Wed, Sep 30 | |||
| 2:17 AM | Slack water | ||
| 6:10 AM | Maximum ebb | 0.5 kt | SSE (148°) |
| 8:39 AM | Slack water | ||
| 11:01 AM | Maximum flood | 0.7 kt | NNW (339°) |
| 2:16 PM | Slack water | ||
| 6:40 PM | Maximum ebb | 0.6 kt | SSE (148°) |
| 9:20 PM | Slack water | ||
| 11:37 PM | Maximum flood | 0.6 kt | NNW (339°) |
| Thu, Oct 1 | |||
| 3:10 AM | Slack water | ||
| 6:57 AM | Maximum ebb | 0.5 kt | SSE (148°) |
| 9:32 AM | Slack water | ||
| 11:53 AM | Maximum flood | 0.6 kt | NNW (339°) |
| 3:07 PM | Slack water | ||
| 7:28 PM | Maximum ebb | 0.5 kt | SSE (148°) |
| 10:12 PM | Slack water | ||
Other depths
NOAA predicts the current at more than one depth here. This page is for the shallowest; the water deeper down turns at different times and runs at different speeds.
| Depth | Strongest flood today | Strongest ebb today |
|---|---|---|
| 2 ft | 0.5 kt 7:42 PM | 0.5 kt 2:49 PM |
| 11 ft | 0.5 kt 7:24 PM | 0.3 kt 2:37 PM |
What this means
The flood is the tidal current running in from the sea, the ebb the current running back out. Slack water is the short turn between them, when the current is weakest: the time to cross a strong channel, anchor, or dive. Slack in a channel is not the time of high or low tide; it can come hours after.
Speeds are knots along the channel's main axis, and directions are degrees true toward which the water flows, as NOAA prints its tables. A current against the wind stands the waves up steep and close together.
Predictions are astronomical: the moon and the sun, not the weather. Strong wind, river flow after heavy rain and storm surge all change the real current.
Nearby8
The closest other NOAA current stations, nearest first.
- Sheffield I. Hbr., 0.5 mile southeast ofSubordinate current station
- Saugatuck River, 0.3 mi. NW of Bluff PtSubordinate current station
- Sheffield I. Tower, 1.1 miles SE ofSubordinate current station
- Eatons Neck, 3 miles north ofHarmonic current station
- Long Neck Point, 0.6 mile south ofSubordinate current station
- Eatons Neck Pt., 2.5 nmi NNW ofSubordinate current station
- Eatons Neck Pt., 1.3 miles north ofSubordinate current station
- The Cows, 2 miles SE ofHarmonic current station
More for this place
Sources
Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station LIS1031, bin 6: original at NOAA. Marine alerts from the National Weather Service.