Ocean Gate Terminal tidal current predictions

Now

Flood 0.2 ktToward SW (230°)

Next slack

11:42 PMEDT

Next max flood

0.4 ktSat 9:44 AM

Next max ebb

0.2 ktSat 2:30 AM

Knots along the channel: above the line the flood, running in toward SW (230°); below it the ebb, running out toward NE (50°). Times are Eastern Daylight Time. Today: ebb 0.1 kt 1:40 AM, slack 3:15 AM, slack 5:36 AM, flood 0.3 kt 9:01 AM, slack 12:52 PM, ebb 0.1 kt 2:13 PM, slack 3:26 PM, flood 0.1 kt 4:43 PM, slack 6:07 PM, flood 0.3 kt 9:01 PM, slack 11:42 PM.

• Small Craft Advisory Small Craft Advisory issued September 25 at 2:26PM EDT until September 27 at 8:00PM EDT by NWS Gray MEUntil Sun 8:00 PM
  Full text

  * WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 6 ft. * WHERE...Penobscot Bay and Casco Bay. * WHEN...Until 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft.

  Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

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.

• State Pier, Portland HarborHarmonic current station0.5 mi
• Portland Breakwater Light, 0.3 n.mi east ofHarmonic current station0.7 mi
• Spring Point, NE ofHarmonic current station1.0 mi
• Diamond Island RoadsHarmonic current station1.2 mi
• Fore River, Portland River BridgeHarmonic current station1.4 mi
• Portland Harbor EntranceHarmonic current station2.7 mi
• Hussey Sound, Between Long and Peaks IslandHarmonic current station3.3 mi
• Hussey Sound, Cow IslandHarmonic current station3.7 mi

• Tide times at Portland 0.3 mi
• Tide times at Back Cove 1.3 mi
• Tide times at Presumpscot River Bridge 1.8 mi
• Forecast for Portland, ME
• Open the live map with tidal currents
• All tidal current stations in Maine

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station CAB1405, bin 12: original at NOAA. Marine alerts from the National Weather Service.