Thunder is a reason to act immediately. No outdoor position offers reliable protection during a thunderstorm.
Avoid committing to exposed ground
Check forecasts and discuss when the route reaches ridges or open slopes. Leave room to change direction before storms develop. A summit plan needs a weather decision, not only a target arrival time.
Seek proper shelter
The National Weather Service recommends a substantial building or enclosed metal-topped vehicle. A tent, isolated tree or open shelter is not equivalent protection. Leave exposed high ground as safely as possible if caught outdoors; no crouching technique makes the situation safe.
Wait before returning outside
Follow the official guidance to remain sheltered for at least 30 minutes after the last thunder. Rain easing does not establish that the danger has passed. Ask Atlas Hikes about realistic weather alternatives for your route. Starting early helps scheduling but does not guarantee storm-free conditions.
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Atlas Hikes
Editorial team