Answer
Approximately $3:18$ am, approximately $2.4$ ft
Work Step by Step
For Lahaina, the data for Kahului Harbor needs to adjusted by $+1:18$ in case of the high tide. In regards for Kahului Harbor, on January 22, the highest point on the graph occurs at approximately 2 am. Since the highest point on the graph corresponds to the high tide, this means that the high tide occurs at approximately 2 am. Therefore, for Lahaina, the high tide occurs at approximately:
$2+1:18=3:18$ am
For Lahaina, the data for Kahului Harbor needs to adjusted by $-0.2$ ft when finding height related to the high tide. According to the graph for Kahului Harbor, the height that corresponds to the high tide is approximately $2.6$ feet. Therefore, for Lahaina, the hieght corresponding to the high tide is:
$+2.6-0.2=2.4$ ft
