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lightning
(Photo: Getty)

Everything You Know About Lightning Safety in the Backcountry Is Wrong

Most backcountry lightning education鈥攊ncluding what鈥檚 taught by major outdoor organizations鈥攊s antiquated. Here鈥檚 your overdue expert update.

Published: 
from Backpacker
lightning
(Photo: Getty)

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About a decade ago, when I first learned about risk management in my college outdoors club, I was taught that assuming the 鈥渓ightning position鈥 was the best way to protect yourself in a thunderstorm (spoiler alert: it does bugger-all). If you managed to avoid this particular tidbit of backcountry lore, allow me to provide a refresher: the lightning position involves crouching down on a sleeping pad with your heels touching, your chest pressed against your knees, and your hands clamped over your ears. It鈥檚 supposed to limit your likelihood of getting electrocuted.

Over the last few years, many outdoor education groups have , now saying the lightning position can only slightly mitigate risk and should only be used as a last resort. But many, including the National Outdoor Leadership School (NOLS), as a way to help insulate your body from ground strikes (it doesn鈥檛). And others, including the Boy Scouts, say can increase your risk of getting struck (another myth).

Few hikers take the time to regularly upgrade their knowledge. That鈥檚 because safety research is a total pain. It鈥檚 much more fun to authoritatively parrot decades-old adages back to our friends and family (guilty). So, allow me to provide our overdue update. Here鈥檚 what鈥檚 actually true about lightning safety in the backcountry.聽

The lightning position is actually bogus.

NOLS teaches that the lightning position is a good option if you find yourself trapped in the open with nowhere else to go. But according to Dr. Ron Holle, a meteorologist and safety specialist for the Lightning Safety Council, that鈥檚 not necessarily the case.

鈥淭he lightning position is useless,鈥 he says. 鈥淭here鈥檚 a lot of speculative, 鈥業 suppose this could work,鈥 sort of advice out there. But I have a file cabinet with about 5,000 cases of people being killed or injured by lightning, and none of those 鈥業 suppose鈥 methods work.鈥

Dr. Kristin Calhoun, a research scientist with the , is inclined to agree.

鈥淚f I was in an open field, I wouldn鈥檛 assume that position,鈥 she says. 鈥淚 would run.鈥 Finding lower ground and getting under uniform tree cover are some of the few things that can measurably decrease your lightning risk, she says. She adds that standing or sitting on a sleeping pad 鈥渕akes no difference鈥 that she鈥檚 aware of. Better to leave the pad in your pack and focus on moving to a safer location.

You can get struck by a storm that鈥檚 up to 10 miles away.

Many of us have stood on a ridge or mountaintop, seen a storm building in the distance, and told ourselves we still had time. That鈥檚 a dangerous misconception, says Calhoun.

鈥淧eople often don鈥檛 worry about a storm until it鈥檚 actively raining over them,鈥 she explains. 鈥淏ut it鈥檚 often the first flash of lightning that鈥檚 the most deadly because people haven鈥檛 taken protective action yet.鈥澛犅

Standing under a tree can sometimes be worse than standing out in the open.

Lightning tends to strike the tallest object on a landscape. So, if you鈥檙e standing on a tall ridge, your head is that high point (not ideal). But standing under a tall or solitary tree can sometimes be worse. That鈥檚 because direct strikes鈥攊nstances where people get hit directly by a bolt鈥攐nly account for 3 to 5 percent of all lightning-related injuries. But ground strikes鈥攊nstances where people are shocked by electricity traveling through the ground鈥攁ccount for up to 50 percent of injuries.

If you鈥檙e standing under a tree, you could be at potentially greater risk than if you were standing out in the open. That鈥檚 because lightning is more likely to hit a 100-foot-tall tree than a 5-foot-tall person. And if it does, the hiker beneath it is first in line for the aftershock.

鈥淚f lightning hits the tree, the ground current will go down through the tree and then back up through the ground,鈥 Calhoun explains. If you鈥檙e far from the trunk, the electricity may have time to disperse before it gets to you. But if you鈥檙e right next to it, you鈥檒l get the brunt of the shock. Calhoun鈥檚 recommendation: find a large patch of shorter trees of uniform height to stand under instead.

Metal doesn鈥檛 actually attract lightning.

鈥淟ightning is not attracted to metal,鈥 Holle says. 鈥淚t travels through metal, but it鈥檚 not attracted to it.鈥 Lightning is only attracted to three things, he says: tall structures, isolated structures, and pointed structures. 鈥淚t doesn鈥檛 matter if those structures are made of metal or wood.鈥

That said, if lightning hits a structure because it鈥檚 tall, the metal material may conduct the lightning to the ground more quickly and therefore more powerfully than if it were wood or plastic. So, if you鈥檙e at a campsite with a bear-hang pole, try not to pitch your tent near it.

鈥淭he metal can conduct electricity, which can jump to a tent 10 to 20 feet away,鈥 Calhoun says.聽

Crouching can help鈥攂ut lying down makes things worse.

Crouching reduces your likelihood of being the tallest point on a landscape. But, paradoxically, lying down puts you in even more danger than standing up. That鈥檚 because when you鈥檙e lying down, you maximize your contact with the ground. That makes ground strikes more likely to affect you. It also makes it more likely that a ground strike could enter your body through a foot and exit through your arm or neck鈥攁rcing through your heart along the way.

A tent provides no shelter from lightning.

鈥淭here are only two real places you鈥檙e safe from lightning: in a real building with wiring or plumbing, which creates a effect, or in a metal-topped vehicle,鈥 says Ron Holle, a meteorologist. A tent, however, provides no shelter.

鈥淪ince 2006, more people have died [from lightning strikes] while camping in tents than while hiking by themselves,鈥 Calhoun says. 鈥淵ou also see these horrific accidents where numerous people are injured at once because they鈥檙e in a confined area that gets struck.鈥

So, if you鈥檙e pitching a tent, put it somewhere you wouldn鈥檛 mind standing in a storm: below treeline, away from tall ridges, and ideally between stands of uniformly tall trees.

Hiding in a cave is a bad idea.

If you鈥檙e caught in a storm and encounter a dry cave or rocky overhang, you might think it a gift. Think again, Calhoun says.

If the electrical strike is traveling along the edge of a cliff and encounters the mouth of a cave, it鈥檚 not going to take the trouble to travel around the roof of the cave to the floor. Instead, it鈥檚 going to jump to you, and use your body as a shortcut. Sheltering from the rain might sound nice, but it鈥檚 better to keep moving.聽

There鈥檚 no such thing as getting 鈥渁ccidentally鈥 caught in a storm.聽

鈥淵ou weren鈥檛 鈥榗aught鈥 in a storm,鈥 Holle says. 鈥楾here was some error in your decision making.鈥

Modern weather forecasting is extremely accurate, he explains鈥攁s long as you check the weather for your trail or peak, not for the nearest town. If the forecast calls for some chance of a storm, there鈥檚 no excuse not to heed it. 鈥淏ut over and over again, I see people plan for a specific hike or fourteener or whatever, and they feel like they have to go on the day they鈥檝e set aside,鈥 he says. Summit fever is a big problem. And Holle suspects that people on average have less respect for lightning now than they did 10 or 20 years ago.

鈥淭here are so many more people doing these activities,鈥 he said. 鈥淭here鈥檚 a new generation coming up that needs to be reminded of the risks.鈥

Bonus: Lightning Fun Facts

Lighting may be dangerous, but it鈥檚 also one of nature鈥檚 greatest wonders. Once you get to safety, feel free to sit back and marvel.聽

  • Lightning always causes thunder鈥攅ven if you don鈥檛 hear it. When lightning strikes, the air around the bolt heats up and expands so fast that it sends air molecules shooting outward in every direction. This heat-induced shockwave creates the sound we know as thunder. And it鈥檚 there even if you don鈥檛 hear it. 鈥淗eat lightning,鈥 for example, isn鈥檛 silent or special鈥攊t鈥檚 just .
  • Different types of lightning sound different. A short, quick bang means a fast, cloud-to-ground flash happened nearby, says Calhoun. But a long, continuous rumble means lightning is arcing more horizontally. Each beat of the rumble is the sound of a leader breaking off from the main streamer and forking away from you through the sky.
  • A single bolt of lightning can cover a whole state. Geostationary satellites often measure bolts that are hundreds of miles long. In 2021, researchers recorded one that was and stretched across parts of Texas, Louisiana, and Mississippi.
  • Volcanoes can also cause lighting. Clouds of exploding volcanic dust can also build up electric charge. (So can tornado and hurricane clouds.) Often, the charge is sufficient to over an erupting volcano.
  • Lightning helps fertilize the soil. Lightning tears through the air with enough force to . That leaves nitrogen atoms free to combine with oxygen, creating molecules called 鈥渘itrates鈥 that are essential for soil and plant health.

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