Driving in rainy weather can be dangerous, especially during thunderstorms. If you find yourself caught in a storm, it's important to know what to do to stay safe.
Lightning Risks for Vehicles
Cars:
- Hard-top cars: Experts from the National Weather Service (US) consider it relatively safe to be inside a hard-top car during a thunderstorm, even if it's struck by lightning.
- Metal frame: The metal frame acts like a Faraday cage, which blocks electromagnetic fields. Lightning current will flow through the metal surface and into the ground, bypassing the occupants.
- Note: This principle does not apply to convertibles.
Motorcycles:
- Lightning strikes: Accidents due to lightning strikes are quite common for motorcyclists.
- Urban areas: Motorcyclists in urban areas have a lower risk of being struck directly by lightning than those in rural areas.
- Tall structures: Lightning tends to strike the tallest objects in an area, so motorcyclists should be wary of buildings, trees, and power lines.
Safety Precautions
If Caught in a Storm:
- Stop: If possible, pull over and seek shelter indoors or in a low-profile vehicle.
- Avoid tall structures: Stay away from places like bridges, hilltops, and isolated trees.
- Stay clear of metal: Avoid metal fences, power lines, and other outdoor electrical equipment.
- Wait: After the last clap of thunder, wait at least 30 minutes before resuming your journey.
Additional Tips
- Avoid wearing non-conductive clothing, such as raincoats and helmets without static-discharging properties.
- Keep windows closed to minimize air current, which can generate static electricity.
- If your car is struck by lightning, stay inside. Contact your insurance company afterward for inspection and repairs.
Summary
To stay safe while driving in rainy weather, follow these precautions:
- If driving a hard-top car, pull over only if necessary, as the metal frame provides protection from lightning strikes.
- Motorcyclists should take extra caution in storms, as they have a higher risk of being struck.
- In both cars and motorcycles, avoid areas with tall structures and metal objects.
- If caught in a storm, seek shelter indoors or in a low-profile vehicle.
- Always wait 30 minutes after the last thunderclap before resuming your journey.