Lahaina tidal current predictions

Now

Ebb 0.7 ktToward NNW (330°)

Next slack

11:45 PMHST

Next max flood

0.4 ktSat 1:42 AM

Next max ebb

0.8 kt7:47 PM

Knots along the channel: above the line the flood, running in toward SE (134°); below it the ebb, running out toward NNW (330°). Times are Hawaii-Aleutian Standard Time. Today: flood 0.4 kt 1:07 AM, slack 3:13 AM, ebb 0.8 kt 7:22 AM, slack 11:31 AM, flood 0.3 kt 1:17 PM, slack 3:10 PM, ebb 0.8 kt 7:47 PM, slack 11:45 PM.

• Tropical Storm Watch Tropical Storm Watch issued September 25 at 2:17PM HST by NWS Honolulu HIUntil Sat 3:30 AM
  Full text

  * WHAT...East winds 25 to 35 knots. Seas 10 to 18 feet. * WHERE...Kaiwi Channel, Maui County Windward Waters, Maui County Leeward Waters, Maalaea Bay and Pailolo Channel. * WHEN...Through Saturday afternoon. * IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.

  Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas.

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.

• Auau ChannelHarmonic current station4.0 mi
• Hawea PointHarmonic current station9.2 mi
• Pailalo ChannelHarmonic current station15 mi
• Kalohi ChannelHarmonic current station20 mi
• Alalakeiki ChannelHarmonic current station21 mi

• Tide times at Lahaina 1.0 mi
• Tide times at Kahului, Kahului Harbor 14 mi
• Tide times at Kihei, Maalaea Bay 15 mi
• Forecast for Lahaina, HI
• Open the live map with tidal currents
• All tidal current stations in Hawaii

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station HAI1120, bin 14: original at NOAA. Marine alerts from the National Weather Service.