Mount Rainier Go/No-Go Decision Matrix

This is the matrix we used for making go/no-go decisions for our Mount Rainier summit bids:

Weather Scoring

Decision Matrix: 5 or lower means “go,” 6 or 7 means “cautious go,” and 8 or higher means “no-go” for us.

It’s copied from the excellent route briefs the Mount Rainier climbing rangers have released:

• Emmons-Winthrop Route Brief
• Disappointment Cleaver Route Brief