🔍 Key Concepts

• Tidal current tables for subordinate stations related to a primary reference station • How to apply time and velocity differences from the reference station to the subordinate station • Understanding time zones (EST vs ZD +5) when reading tables dated in local or standard time

💭 Think About

• Which publication would you use to find current predictions for Mystic River, and which is the primary reference station you must start from? • Once you have the predictions at the reference station, how do you adjust the times and speeds to obtain the current at the Highway Bridge at 1900 EST on that specific date? • After converting the time correctly, where does 1900 fall in the tidal cycle (flood, ebb, or slack) according to the adjusted current table?

✅ Before You Answer

• Confirm you are using the correct year and date for the current table (24 January 1983). • Double-check your time conversion between EST, ZD +5, and any time used in the tables so you are reading the right line for 1900. • Verify you applied the correct time and rate differences from the primary reference station to the Highway Bridge subordinate station before deciding on the state and strength of the current.