Preventing<unk>  involves avoiding being outdoors during a thunderstorm. While no place is entirely safe from lightning strikes, it is recommended to seek shelter in a substantial, fully-enclosed building (preferably with electrical attachments and plumbing) or a closed metal vehicle, such as a car. If being outdoors is unavoidable, staying away from metal objects (including fencing and power lines), sheets of water (ponds, lakes, etc), tall structures, and open, exposed areas (including high ground, hills, etc) is strongly recommended. It is dangerous to shelter under isolated trees, cliffs or other rocks. Lying on the ground is also dangerous. When a lightning strike seems imminent, a 'lightning position' can be taken by "sitting or crouching with knees and feet close together to create only one point of contact with the ground" (with the feet off the ground if sitting; if standing is necessary, the feet have to be touching). Signs of an impending strike nearby can include a crackling sound, sensations of static electricity in the hair or skin, the pungent smell of ozone, or the appearance of a blue haze around persons or objects (St. Elmo's fire). For large groups of people, it is recommended that individuals spread out to avoid mass casualties. When indoors, the use of devices connected to electrical outlets and contact with water is discouraged. In the United States, recreational fishing poses the greatest risk of death from lightning of any activity, accounting for 10 percent of all lightning deaths between 2006 and 2019. Organized groups and individuals are encouraged to prepare lightning safety plans in advance. Specific tips are available for various situations, such as outdoor recreation, boating and other water activities, and organized sporting events.
Lightning injury
Lightning strike
Heat stroke
Polytrauma
Barotrauma
Rheotrauma
Biotrauma
Blunt trauma