Don't handle flammable materials in open containers. Stop yard work, especially when the mower or tractor is pulling metal equipment, and dismount. Tractors and other implements in metallic contact with the ground are often struck by lightning. Get out of the water and off small boats. Stay in your automobile if you are traveling.
Automobiles offer excellent lightning protection.
Seek shelter in buildings. If no buildings are available, your best protection is a cave, ditch, canyon, or under head-high clumps of trees in open forest glades. When there is no shelter, avoid the highest object in the area. If only isolated trees are nearby, your best protection is to crouch in the open, keeping twice as far away from isolated trees as the trees are high. Avoid hill tops, open spaces, wire fences, metal clothes lines, exposed sheds, and any electrically conductive elevated objects.