INT 1 · H 40

Flood tidal stream

Tides & currentsCore

A feathered arrow points in the direction of the flood stream.

What it means
The feathered arrow points in the direction the water flows on the flood. A nearby rate may be shown in knots.
Why it matters
The printed rate is not constant. Use the tidal-stream table or almanac for the time and tidal range of your passage.
IHO INT 1 — H 40