Ice can be especially hazardous. If you have to walk across icy areas, make sure you wear shoes that will give you good traction. Go out during the day. You're more likely to slip on ice if you can't see it. Stay off the phone during a storm.
Lightning can travel through the phone lines.
And don't take a shower or bath. Metal pipes and water can carry a lightning current. If you think your car is hydroplaning - don't slam on the brakes. Take your foot off the gas to slow down. This will stop you from skidding and losing control.