Definition of "upper-level" []

• At an elevated level in rank or importance (adjective)

WordNet. Princeton University. 2010.

• "Those drone strikes killed dozens of lower-ranking militants and at least ten mid-and upper-level leaders within al-Qaeda or the Taliban."
• "Monday night is tricky as the fairly powerful upper-level disturbance passes by in a potentially optimal path for some snow around here."
• "A vigorous upper-level disturbance could send a band of snow toward or into the area Monday night."