Main Ship Channel tidal current predictions
Flooding 0.1 kt now, toward WNW (295°), easing. Slack at 10:04 PM, then ebb to 1.0 kt at Sat 1:16 AM.
Now
Today, Fri, Sep 25, at 6 ft deep.
- Now
- Flood 0.1 ktToward WNW (295°)
- Next slack
- 10:04 PMEDT
- Next max flood
- 1.3 ktSat 7:16 AM
- Next max ebb
- 1.0 ktSat 1:16 AM
Knots along the channel: above the line the flood, running in toward WNW (295°); below it the ebb, running out toward ESE (110°). Times are Eastern Daylight Time. Today: ebb 0.9 kt 12:41 AM, slack 3:49 AM, flood 1.2 kt 6:36 AM, slack 9:48 AM, ebb 0.9 kt 1:00 PM, slack 4:08 PM, flood 1.2 kt 6:53 PM, slack 10:04 PM.
Alerts in force
National Weather Service marine and coastal products at this station’s position.
None right now. The National Weather Service issues small craft advisories, gale and storm warnings, special marine warnings, dense fog advisories and coastal flood products for water like this.
7-day current table
Strongest flood this week 1.5 kt, Tue, Sep 29 at 9:28 AM. Strongest ebb 1.2 kt, Tue, Sep 29 at 2:58 AM.
| Time | Event | Speed | Toward |
|---|---|---|---|
| Fri, Sep 25 | |||
| 12:41 AM | Maximum ebb | 0.9 kt | ESE (110°) |
| 3:49 AM | Slack water | ||
| 6:36 AM | Maximum flood | 1.2 kt | WNW (295°) |
| 9:48 AM | Slack water | ||
| 1:00 PM | Maximum ebb | 0.9 kt | ESE (110°) |
| 4:08 PM | Slack water | ||
| 6:53 PM | Maximum flood | 1.2 kt | WNW (295°) |
| 10:04 PM | Slack water | ||
| Sat, Sep 26 | |||
| 1:16 AM | Maximum ebb | 1.0 kt | ESE (110°) |
| 4:25 AM | Slack water | ||
| 7:16 AM | Maximum flood | 1.3 kt | WNW (295°) |
| 10:31 AM | Slack water | ||
| 1:38 PM | Maximum ebb | 1.0 kt | ESE (110°) |
| 4:47 PM | Slack water | ||
| 7:34 PM | Maximum flood | 1.2 kt | WNW (295°) |
| 10:43 PM | Slack water | ||
| Sun, Sep 27 | |||
| 1:49 AM | Maximum ebb | 1.1 kt | ESE (110°) |
| 5:02 AM | Slack water | ||
| 7:59 AM | Maximum flood | 1.4 kt | WNW (295°) |
| 11:14 AM | Slack water | ||
| 2:15 PM | Maximum ebb | 1.1 kt | ESE (110°) |
| 5:26 PM | Slack water | ||
| 8:17 PM | Maximum flood | 1.3 kt | WNW (295°) |
| 11:21 PM | Slack water | ||
| Mon, Sep 28 | |||
| 2:23 AM | Maximum ebb | 1.2 kt | ESE (110°) |
| 5:40 AM | Slack water | ||
| 8:43 AM | Maximum flood | 1.4 kt | WNW (295°) |
| 11:57 AM | Slack water | ||
| 2:52 PM | Maximum ebb | 1.1 kt | ESE (110°) |
| 6:07 PM | Slack water | ||
| 9:01 PM | Maximum flood | 1.3 kt | WNW (295°) |
| Tue, Sep 29 | |||
| 12:02 AM | Slack water | ||
| 2:58 AM | Maximum ebb | 1.2 kt | ESE (110°) |
| 6:22 AM | Slack water | ||
| 9:28 AM | Maximum flood | 1.5 kt | WNW (295°) |
| 12:43 PM | Slack water | ||
| 3:30 PM | Maximum ebb | 1.1 kt | ESE (110°) |
| 6:51 PM | Slack water | ||
| 9:45 PM | Maximum flood | 1.3 kt | WNW (295°) |
| Wed, Sep 30 | |||
| 12:47 AM | Slack water | ||
| 3:37 AM | Maximum ebb | 1.2 kt | ESE (110°) |
| 7:09 AM | Slack water | ||
| 10:14 AM | Maximum flood | 1.4 kt | WNW (295°) |
| 1:32 PM | Slack water | ||
| 4:14 PM | Maximum ebb | 1.0 kt | ESE (110°) |
| 7:41 PM | Slack water | ||
| 10:33 PM | Maximum flood | 1.2 kt | WNW (295°) |
| Thu, Oct 1 | |||
| 1:35 AM | Slack water | ||
| 4:23 AM | Maximum ebb | 1.1 kt | ESE (110°) |
| 8:02 AM | Slack water | ||
| 11:04 AM | Maximum flood | 1.4 kt | WNW (295°) |
| 2:25 PM | Slack water | ||
| 5:11 PM | Maximum ebb | 0.9 kt | ESE (110°) |
| 8:36 PM | Slack water | ||
| 11:25 PM | Maximum flood | 1.1 kt | WNW (295°) |
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 |
|---|---|---|
| 6 ft | 1.2 kt 6:53 PM | 0.9 kt 1:00 PM |
| 16 ft | 1.1 kt 6:48 PM | 0.8 kt 1:05 PM |
| 33 ft | 0.9 kt 7:08 PM | 0.6 kt 1:03 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.
- Lummus Island, SW cornerHarmonic current station
- Norris CutHarmonic current station
- Lummus Island Turning BasinHarmonic current station
- Pilot HouseHarmonic current station
- Fisher Island Turning BasinHarmonic current station
- Dodge Island Cut, west endHarmonic current station
- West entrance, south sideHarmonic current station
- Miami Harbor EntranceHarmonic current station
More for this place
Sources
Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station MIH0808, bin 9: original at NOAA. Marine alerts from the National Weather Service.