For runners caught in a thunderstorm, Runner's World offered advice from the National Oceanic and Atmospheric Administration in 2016. The top tip is to get inside - even if it means continuing to run until you reach a car or a building - as soon as possible, something that might not be feasible for an ultramarathoner.
The NOAA notes that squatting to lower your profile should only be used as a last resort because it doesn't significantly reduce risk. Being the tallest object increases the danger of a direct strike, so do not stand under a tall or isolated tree. Currents from a nearby ground strike kill more people than direct strikes.
If caught outside, NOAA advises:
- Immediately get off elevated areas such as hills, mountain ridges or peaks
- Never lie flat on the ground
- Never shelter under an isolated tree
- Never use a cliff or rocky overhang for shelter
- Immediately get out of and away from ponds, lakes and bodies of water
- Stay away from objects that conduct electricity (barbed wire fences, power lines, windmills, etc.)