Port Graham tidal current predictions

Now

Ebb 2.0 ktToward SSW (203°)

Next slack

10:03 PMAKDT

Next max flood

3.6 ktSat 12:59 AM

Next max ebb

3.1 ktSat 7:12 AM

Knots along the channel: above the line the flood, running in toward NE (35°); below it the ebb, running out toward SSW (203°). Times are Alaska Daylight Time. Today: flood 3.1 kt 12:30 AM, slack 3:44 AM, ebb 2.9 kt 6:45 AM, slack 9:49 AM, flood 3.4 kt 12:46 PM, slack 4:04 PM, ebb 3.0 kt 7:03 PM, slack 10:03 PM.

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.

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.

• Point Pogishi, southwest ofHarmonic current station2.3 mi
• SeldoviaHarmonic current station9.4 mi
• Kachemak Bay EntranceSubordinate current station12 mi
• Port ChathamHarmonic current station14 mi
• Kachemak Bay, southwest ofHarmonic current station15 mi
• Kachemak Bay, west ofSubordinate current station16 mi
• Barabara PointHarmonic current station16 mi
• Chugach PassageHarmonic current station17 mi

• Tide times at Port Graham 6.0 mi
• Tide times at Seldovia 9.1 mi
• Tide times at Kasitsna Bay, Kachemak Bay 15 mi
• Forecast for Homer, AK
• Open the live map with tidal currents
• All tidal current stations in Alaska

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station COI0516, bin 10: original at NOAA. Marine alerts from the National Weather Service.