Being in a lake when it is struck by lightning can pose a risk of electrical shock and potential injury, although the likelihood of being directly electrocuted depends on several factors. Here's some information to consider:
Conductivity of water: Water is a relatively good conductor of electricity, meaning it can transmit electrical currents. However, the actual conductivity of the lake water can vary based on factors such as its mineral content, temperature, and purity. Distilled water, for instance, has low conductivity, while water with higher mineral content or impurities may conduct electricity more effectively.
Distance from the lightning strike: The further you are from the direct path of a lightning strike, the less likely you are to experience a direct electrical shock. Lightning currents generally disperse as they travel through water, and the risk of electrocution decreases with increasing distance from the strike.
Indirect effects: Even if you are not directly struck by lightning, there are indirect effects that can still pose a danger. When lightning strikes a body of water, the electrical energy can travel through the water's surface and potentially affect individuals or objects in or around the lake. This can include side flashes, contact voltage, or ground currents that may spread through the water and pose a risk to those nearby.
To minimize the risk of injury during a thunderstorm while in a lake or any open water area, it is generally recommended to follow these safety guidelines:
Seek shelter: Get out of the water as soon as you hear thunder or see lightning. Move to a safe location away from the water, such as a substantial building or a fully enclosed vehicle.
Avoid water contact: It is crucial to avoid swimming, wading, or touching the water during a thunderstorm, as it increases the risk of being struck by lightning.
Wait for the storm to pass: Wait at least 30 minutes after the last observed lightning or thunder before returning to the water.
Remember, lightning strikes are unpredictable, and it is always safer to err on the side of caution during thunderstorms to reduce the risk of injury or electrocution.