Throughout your life, you have a 1 in 600,000 chance of being struck by lightning, according to the National Weather Service (NWS). As you’d expect, the overwhelming majority of those struck are hit while outside. However, it is possible to be struck while inside. The NWS says it is indeed possible to be struck while showering because lightning can travel through your pipes. NWS’s John Jensenius suggests you “wait at least 30 minutes after the last thunder you hear before taking a shower.”
Other potential ways a person can be struck by lightning while inside:
Washing dishes: Using the sink presents the same problem as showering. In fact, using any part of your home’s plumbing is a risk during an electrical storm.
Telephone: If you still have a cord telephone, do not use it.
In a car: You should be safe, but don’t touch any metal.
Other safety precautions to employ while at home include unplugging computers, air conditioners, and refrigerators to avoid damage from surges.