Relating to upper management boils down to one critical skill: analyzing issues from their perspective, not yours.
Use empathy to deepen your understanding of the bosses' outlook. Step into their shoes. Ask yourself what aspects of your operation management cares about most. What do they like to measure? What pressures do they face? How do they define success?
"Just to clarify where we're at now..."
"As I understand the developments leading up to this point..."
"Let me make sure we're on the same page..."