What is the difference between Isaac and Joseph's points of view in the early morning hours of September 8th as recorded in the book, Isaac’s Storm: A Man, a Time, and the Deadliest Hurricane in History?

Both Joseph and Isaac awakened early the morning of September 8th and met in the kitchen to talk. They were both concerned about the weather, but Joseph thought they should send a telegram to Washington, whereas Isaac disagreed, saying the situation didn't warrant that.