Determine the time after 0300 CST (ZD +6) when the velocity of the tidal current will be 0.5 knot on 16 April 1983, at Port Arthur Canal Entrance, TX.

Correct Answer: Option B — 0507

Port Arthur Canal Entrance current tables necessitate interpolating between slack water and maximum current entries using Table 3 of the tide tables to find the precise timestamp when velocity hits 0.5 knot.