Ухваћен муњом на откривеном планинском гребену или отвореној води¶
Бројеви за хитне случајеве разликују се у зависности од земље. Ова страница користи 911, број за Сједињене Државе и Канаду. Многе друге земље користе 112, 999 или неки други број. Пронађите број за своју земљу.
Бити ухваћен изнад линије дрвећа на гребену алпских планина или на отвореном језеру или обалском заливу када се кумулонимбусна грмљавина створи изнад главе је једна од најсмртоноснијих временских непогода на отвореном. На високим планинским теренима и на равној води, ви сте често највиша или најпроводљивија тачка стотинама метара у сваком правцу, а позитивни узлазни таласи могу да се подигну са ваше главе, штапова за пешачење или јарбола чамца неколико секунди пре него што се спој облака са земљом од 30.000 ампера споји. Преживљавање у ванредним ситуацијама изложеним муњама захтева препознавање тренутних електростатичких знакова упозорења, спуштање надморске висине са гребена и врхова у једнолично дрво или низак терен, одвајање ваше групе за најмање 15 до 30 метара (50 до 100 стопа) како би се осигурало да преживели може да делује ЦПР, изоловање стопала од степена напона земаљске струје и управљање пловилима на отвореном када се стигне до обале је немогуће.
Уради ово сада¶
- Одмах спустите врхове, гребене и отворену воду ако се грмљавина зачује у року од 30 секунди од бљеска (или ако се коса диже на глави). Избројите секунде између бљеска муње и његовог удара грома: 30 секунди или мање значи да је удар у кругу од 10 километара (6 миља) може да удари директно. Ако вам се коса диже на глави, кожа вам се најежи, метални зупчаници бруји или пуцкета (ватра Светог Елма) или камење зуји, на вашем телу се формира трака нагоре и ударац је удаљен неколико секунди: баците сву металну опрему одмах, спринтајте или крешите се 30 до 60 метара (100 до 200 стопа на доле ако имате 100 до 200 стопа) Позиција муње на изолационој пенастој подлози или паковању.
- Одбаците торове са металним оквиром, алуминијумске штапове за планинарење, цепине, носаче за пењање и штапове за пецање на удаљености од најмање 30 метара (100 стопа). Иако мале количине метала не „привлаче“ муње на километрима, дуги вертикални проводници (штапови за планинарење, цепине, рамови за рибе, графитни рамови за рибу) концентришу спољни графитни/аутомобилски оквир електрична поља на њиховим врховима да лансирају вође навише и изазову разорне контактне опекотине трећег степена и повреде од експлозије ако се удар догоди у близини.
- Распоредите своју групу на удаљености од најмање 15 до 30 метара (50 до 100 стопа). Струја земље (потенцијал корака) зрачи напоље у смртоносном кругу до 20 до 30 метара (65 до 100 стопа) од тачке удара. Ако се четири планинара или кајакаша скупе раме уз раме, један ударац ће довести до симултаног застоја срца и дисања сва четворица, при чему нико неће остати при свести да би извршио спасоносно дисање или ЦПР.
- Никад се не заклањајте испод изолованог дрвета, унутар плитког стенског препуста или уз вертикалну литицу. Плитке пећине и препусти мањи од 3 метра (10 стопа) дубоки са мање од 1,5 метара (5 стопа) висине главе и бочне стране делују као варници где муње луче директно од крова од стене кроз вашу главу и груди. Држите се најмање 1,5 до 2 метра (5 до 6,5 стопа) даље од вертикалних зидова.
- Adopt the low-footprint "Lightning Crouch" on top of your foam sleeping pad, rope coil, or frameless pack. Squat low on the balls of your feet with your heels touching together, hands over your ears, head tucked toward your knees, and zero other body parts (hands, knees, or elbows) touching the ground. Keeping your heels together and insulated minimizes the voltage difference (step potential) across your legs and creates a short path from one foot to the other rather than through your heart.
- Perform immediate CPR and rescue breathing on strike victims and trigger an SOS. A person struck by lightning does not hold an electrical charge and is 100% safe to touch immediately. Lightning stops the heart and paralyzes the respiratory center in the brainstem; start ЦПР immediately, activate your satellite SOS beacon (Garmin inReach, Zoleo, Apple Emergency SOS, or PLB), and call your local бројеви за хитне случајеве (911 in the United States and Canada, 112 across the European Union, 999 in the United Kingdom, 000 in Australia).
flowchart TD
A["Thunderstorm builds while on exposed mountain ridge or open water"] --> B{"Are electrostatic signs present? (Hair standing up, buzzing metal, tingling skin)"}
B -->|"Yes (Strike imminent in seconds)"| C["Drop metal poles/axes/rods immediately, scramble 30 m off crest if able, crouch on foam pad/pack with heels together"]
B -->|"No, but flash-to-bang is under 30 seconds (< 10 km / 6 mi)"| D{"What environment are you in?"}
D -->|"Alpine Ridgeline / Above Treeline"| E["Descend leeward side off peak/ridge toward uniform dense forest or broad bowl; separate group by 15 to 30 m (50 to 100 ft)"]
D -->|"Rock Face / Multi-Pitch Climb / Via Ferrata"| F["Unclip from steel cables if tethered Safely; move 1.5 m (5 ft) away from wet cracks/chimneys; tie in with nylon dynamic rope"]
D -->|"Open Water (Kayak, Canoe, Small Boat, SUP)"| G{"Can you reach shore within 5 to 10 minutes?"}
G -->|"Да"| H["Paddle hard to shore, haul craft 30 m (100 ft) inland away from water's edge and tall shoreline trees, crouch in uniform brush"]
G -->|"No (Caught in open water)"| I["Drop fishing rods/paddles flat, separate boats by 30 m (100 ft), sit or crouch low in center hull on dry PFD/foam, stay out of water"]
C --> J{"Was someone struck by lightning?"}
E --> J
F --> J
H --> J
I --> J
J -->|"Да"| K["Reverse Triage: Perform immediate CPR & prolonged rescue breathing on non-breathing victims; press Satellite SOS / Call 911/112/999"]
Why shallow caves, cliff overhangs, and wet rock gullies are fatal traps
When freezing rain and hail hammer an alpine ridge, hikers instinctively press their backs against a cliff wall or crawl under a shallow rock overhang to stay dry. In a lightning storm, that instinct is fatal. Lightning current flows down the exterior surface of mountain rock faces, concentrating in wet cracks, gullies, and drainage chimneys. When that current reaches the lip of a shallow overhang or small cave, the air gap between the rock ceiling and a hiker's head offers far less electrical resistance than the rock wall around the opening. The bolt jumps across the air gap (side flash), passing straight through your skull and torso into the cave floor. Never shelter in a cave or overhang unless you can stand with at least 1.5 meters (5 feet) of clear air between your body and every wall, and 3 meters (10 feet) of clearance below the ceiling.
Phase 1: Understanding the 5 mechanisms of lightning injury in the backcountry¶
Only 3% to 5% of wilderness lightning casualties are caused by a direct cloud-to-head lightning bolt. Understanding the other 95% of injury mechanisms explains every survival rule in the backcountry:
| Mechanism of Lightning Injury | Share of Casualties | How the Electrical Current Reaches Your Body | Primary Wilderness Prevention Strategy |
|---|---|---|---|
| 1. Ground Current (Step Potential) | 50% to 55% | Lightning strikes a peak, boulder, or tree and spreads radially across the surface of the ground (especially over wet granite, talus, or saturated soil) for 15 to 30 meters (50 to 100 feet). Because soil and rock resist current more than the human body, if your feet are planted 60 centimeters (2 feet) apart, a massive voltage differential (step voltage) exists between your left foot and right foot, driving current up one leg, through your pelvis and heart, and down the other leg. | Minimize ground contact area; stand or squat on a closed-cell foam sleeping pad or frameless pack; keep your feet and heels pressed tightly together so current enters and exits at the same ankle rather than traversing your torso; never lie flat on the ground. |
| 2. Side Flash (Splash) | 30% до 35% | Lightning strikes a taller object next to you, such as a lone subalpine pine, a summit cairn, a boulder, or a cliff face, and a portion of the current jumps horizontally through the air (up to 1 to 3 meters / 3 to 10 feet) into your body because your body is a better conductor than the air or tree bark. | Stay at least 3 to 5 meters (10 to 16 feet) away from isolated trees, summit boulders, and trail signs, and at least 1.5 meters (5 feet) away from vertical cliff walls. |
| 3. Contact Injury (Conduction) | 5% to 8% | You are physically touching a long conductive object when it is struck up to hundreds of meters away, such as a steel via ferrata cable, a wire handrail (like the Half Dome cables), a barbed-wire pasture fence, a wet climbing rope in a chimney, an aluminum tent pole, or a boat shroud. | Let go of wire cables, metal ladders, chain railings, and fences immediately; drop aluminum poles and fishing rods. |
| 4. Upward Streamer (Leader) Current | 5% to 8% | As a stepped leader approaches from the cloud, strong positive upward streamers launch from high points on the ground, including a hiker's head or shoulder on an exposed ridge. Even if a neighboring boulder's streamer connects to complete the main bolt, the collapse of the unconnected upward streamer flowing through your body carries hundreds of amperes, enough to cause instant cardiac arrest. | Evacuate high points (summits, ridges, open decks) at the first sign of cumulus vertical development; drop to a crouch if hair stands on end. |
| 5. Direct Strike & Blunt Barotrauma | 3% до 5% | The main lightning channel connects directly to the victim or their held gear, OR the explosive supersonic shockwave of thunder (barotrauma) at point-blank range ruptures eardrums, contuses lungs, or throws the victim off a cliff or talus slope. | Descend early; cover ears with hands during the lightning crouch; anchor yourself with a nylon rope if crouching on a narrow ledge where a muscle spasm or shockwave could throw you off the mountain. |
Phase 2: Surviving an alpine ridge, summit, or technical rock climb¶
In high-altitude mountain ranges (such as the Rocky Mountains, Sierra Nevada, European Alps, Andes, or Australian Alps), summer heating builds convective cumulonimbus clouds rapidly between 11:00 AM and 4:00 PM. Backcountry mountaineers call the rule "Summits by Noon, Down by One", meaning you should be turning around and descending from exposed alpine terrain before midday if towering cumulus (cumulus congestus) clouds begin building vertically like cauliflower towers or developing a flat anvil top.
Step-by-step alpine ridgeline escape protocol¶
Step 1: Identify the safest immediate micro-terrain¶
When thunder rumbles or lightning flashes while you are above treeline (in the alpine zone), look around you and rank your descent options:
- Best Option (Subalpine Dense Uniform Forest): Descend below treeline into a dense stand of trees of uniform, shorter height located in a valley, basin, or depression. Avoid the single tallest giant tree in the stand; position yourself evenly spaced among groups of smaller trees.
- Second Best Option (Broad Bowl, Talus Basin, or Leeward Slope 30 to 60 Meters Below the Crest): If treeline is 2 hours below you, you do not have to reach trees to drastically reduce your strike probability. Simply descending 30 to 60 meters (100 to 200 feet) vertically down the slope off the sharp ridge crest or summit pyramid takes you out of the primary upward-streamer zone, because the ridge crest above you acts as a partial Cone of Protection.
- Understanding the "45-Degree Cone of Protection": A tall cliff or mountain peak casts a partial zone of reduced direct-strike risk extending outward at roughly a 45-degree angle from its peak, provided you stay far enough away from the base of the rock face (at least 1.5 to 3 meters / 5 to 10 feet out from the wall) to avoid side-flash and rock-surface currents, and stay within 10 to 15 meters (33 to 50 feet) of the base where the cone still shields you.
========================================================================
THE 45-DEGREE CONE OF PROTECTION AGAINST A ROCK FACE
========================================================================
/| <-- Peak / Tall Cliff (Do NOT stand on top)
/ |
/ | DANGER ZONE: Within 1.5 m (5 ft) of wall (Side Flash)
/ |
/ * | <-- SAFEST ZONE: 2 to 6 m (6.5 to 20 ft) away from base
/_____| of a tall vertical wall (at least 10 m / 33 ft high),
crouching on an insulating pad away from water gullies.
========================================================================
- Deadly Micro-Terrain to Avoid on the Descent:
- Never descend down a wet gully, streambed, couloir, or water-filled crack. Water is a superior conductor to dry granite; lightning current channels directly down wet gullies and rock crevices like a copper wire. Stay on dry ribs or open talus slopes between gullies.
- Never shelter inside an old metal-roofed fire lookout, open-sided lean-to, or ungrounded stone hut. Unless a building has complete enclosed electrical wiring and plumbing or a certified lightning-protection grounding rod system, an open three-sided trail shelter or stone hut transmits current directly through its roof and floor.
Step 2: Execute the "Lightning Crouch" on insulating gear¶
If electrostatic signs appear or strikes are hitting the mountain around you and you must stop moving:
- Throw down dry insulation: Pull out your closed-cell foam sleeping pad (such as a Therm-a-Rest Z Lite), a dry coiled nylon climbing rope, or your backpack (ONLY if it has no internal/external metal frame stays, or after sliding the aluminum stays out) and place it on dry ground. The thicker the dry air/foam layer between the soles of your boots and the wet rock, the higher the electrical breakdown resistance against ground current.
- Squat or sit compactly: Balance on the balls of your feet on top of the pad with your heels and ankles pressed together. If muscle exhaustion makes squatting for 20 minutes impossible, sit tightly on top of a thick folded foam pad and frameless pack with your knees pulled up to your chest and your feet resting together on the pad, never let your feet, hands, or buttocks touch the bare ground off the pad.
- Never lie flat on the ground: Lying prone or supine creates a 1.8-meter (6-foot) electrical bridge across the ground surface, guaranteeing that any ground current passing within 25 meters will travel straight through your heart and brain.
- Protect your senses: Clasp your hands over your ears to prevent tympanic membrane (eardrum) rupture from point-blank thunder shockwaves, and close your eyes to prevent temporary flash blindness (photokeratitis) from intense UV/visible flashes.
Step 3: Special triage for Technical Rock Climbers and Via Ferrata users¶
Being roped up halfway up a 300-meter (1,000-foot) rock wall or clipped into a steel via ferrata cable when a storm hits requires decisive action:
- On a Via Ferrata (Iron Way) or Cable Route (e.g., Half Dome, Dolomites): A continuous steel cable bolted down a mountain ridge is a literal lightning rod that conducts a strike occurring 500 meters away at the summit straight through every climber clipped into the cable. If you can scramble off the cable route onto a broad ledge before the storm hits, unclip from the steel cable, move at least 2 meters (6.5 feet) away from the cable and iron rungs, and anchor yourself to a natural rock horn or non-cable nylon sling so a shockwave cannot knock you off the ledge.
- On a Multi-Pitch Rock Climb: If you cannot rappel to the ground before strikes begin, establish a bombproof belay on the widest dry ledge available (avoiding wet chimneys and dihedral corners where water runs). Do not stand unanchored on a narrow ledge: even a weak ground current causes violent involuntary tetanic muscle contractions that will launch an unanchored climber off the cliff. Tie yourself in short with your dry dynamic nylon climbing rope (dry nylon is an electrical insulator; wet rope conducts current, though less than steel cable), move your metal cam/nut rack 3 meters away to a separate gear anchor if possible, and sit on your pack or coiled dry rope rope tail about 1.5 meters (5 feet) away from the main vertical wall if the ledge permits.
Step 4: Should you stay inside a backpacking tent during a lightning storm?¶
A backpacking tent offers ZERO protection from lightning. In fact, aluminum or carbon-fiber tent poles act as miniature lightning rods on an exposed campsite, and pitched inside a tent, hikers usually lie flat on the floor with their heads and feet inches from the grounded metal pole tips.
- If your tent is pitched in an exposed alpine basin above treeline or on a ridge and a severe lightning storm moves directly overhead, put on your rain gear, grab your foam sleeping pad, exit the tent, move at least 15 meters (50 feet) away from the tent into a low depression, and assume the lightning crouch on your pad.
- If your tent is already pitched properly deep inside a dense, uniform forest below treeline, away from the tallest isolated trees and away from water, the surrounding forest canopy provides far taller upward-streamer paths than your 1.2-meter (4-foot) tent, but you should still sit upright on your foam sleeping pad in the center of the tent floor (away from the metal poles and tent walls) rather than lying flat head-to-pole until the active core passes.
Phase 3: Surviving lightning on open water (Kayaks, canoes, SUPs, and small boats)¶
Open water is mathematically as dangerous as an alpine summit. Because a lake, bay, or ocean is completely flat, a paddler sitting in a kayak, standing on a stand-up paddleboard (SUP), or sitting in an open aluminum fishing skiff is the single highest vertical protrusion for kilometers around, and their lower body rests inches from a massive conductive sheet of water.
Step 1: The 5-Minute Shore Sprint vs. Open-Water Hunker Decision¶
As soon as you see darkening cumulus clouds, feel a sudden gust front (outflow boundary drop in temperature), or hear distant thunder:
- If shore is within 5 to 10 minutes of hard paddling/motoring: Head straight for the nearest land immediately, even if it is an unplanned beach or private dock. Once you hit shore, do not linger at the water's edge (lightning strikes at the waterline travel along the wet sand and water surface). Haul your boat 30 meters (100 feet) inland, walk past the first tall shoreline trees into lower uniform brush or an enclosed building/vehicle, and crouch on your life jacket (PFD).
- If you are caught more than 10 minutes from shore and lightning is already striking the water: Do not exhaust yourself paddling upright in the middle of an active strike zone. Transition immediately to the Open-Water Survival Protocol.
Step 2: Open-Water Survival Protocol by Vessel Type¶
| Vessel Type | Immediate Lightning Action Protocol | Critical Hazards to Avoid on Water |
|---|---|---|
| Kayak, Canoe, or Stand-Up Paddleboard (SUP) | Drop flat immediately on a SUP (kneel or lie on the foam board; never stand). In a kayak or canoe, lay your carbon-fiber or aluminum paddle flat across the deck/gunwales (carbon fiber is highly conductive; holding a wet carbon paddle overhead in a thunderstorm is holding a lightning rod). Spread multiple boats at least 30 meters (100 feet) apart so one strike does not incapacitate the entire group. Sit or crouch as low as possible in the center of the cockpit, pull a spare foam PFD or dry bag under your feet/seat to insulate yourself from the hull bottom facing the water, and keep your hands and feet completely out of the water. | Never dangle hands or feet in the water; never raft kayaks together side-by-side holding gunwales; never hold a carbon paddle vertically. |
| Open Aluminum Fishing Boat, Bass Boat, or Center Console | Lower and stow all graphite/carbon fishing rods, outriggers, VHF antennas, and Bimini metal frames flat on the deck immediately. Cut the trolling motor and haul up the anchor if anchored in open water (or leave anchor line only if needed to avoid drifting onto rocks, without touching the wet rode/chain). Put on your Life Jacket (PFD) immediately (so you float face-up if knocked unconscious by a strike). Crouch low in the center of the boat on top of a fiberglass cooler, dry foam boat cushion, or life jacket, keeping away from the console steering wheel, throttle cables, battery terminals, and metal gunwales. | Never hold a graphite fishing rod (graphite conducts electricity instantly); never stand at the bow trolling motor; never touch two metal parts of the boat simultaneously. |
| Cabin Cruiser or Sailboat with a Mast | A sailboat's aluminum mast casts a roughly 45-degree Cone of Protection over the hull only if the mast is properly grounded to the keel/water via heavy-gauge bonding cables (or an emergency jumper cable clipped to a shroud and trailed in the water, attach this before the storm arrives, never during strikes). Go below deck into the center of the cabin. Stay completely away from the mast compression post, chainplates, stainless steel shrouds/stays, marine VHF radio microphone, galley sink faucets, and engine block. | Even in a grounded sailboat, a direct strike to the mast often blows out all 12V marine electronics (GPS, VHF, depth sounder) and can blow a hole through an ungrounded thru-hull fitting, immediately check the bilge for flooding after any strike. |
Freshwater vs. Saltwater lightning physics
Wait to enter the water under any circumstances, and understand how water salinity changes ground current on the surface: - Saltwater (Ocean / Bays): Saltwater is rich in dissolved ions and is a much better electrical conductor than the human body. When lightning strikes the ocean, current dissipates rapidly across the surface layer and dissipates exponentially within a shorter radius (roughly 10 to 15 meters / 33 to 50 feet), tending to flow around rather than exclusively through a submerged body outside the immediate blast radius. - Слатка вода (планинска језера/реке): Слатка вода има веома ниску минералну проводљивост, што ваше људско тело (пуно слане крви и електролита) чини далеко бољим проводником од околне језерске воде. Када гром удари у слатководно језеро, електрична струја путује много даље кроз воду тражећи пут са ниским отпором и тече директно кроз тело било ког пливача или шетача у кругу до 30 до 50 метара (100 до 165 стопа), изазивајући тренутну парализу и утапање. Никада не напуштајте кајак или чамац да бисте ушли у воду током олује са грмљавином. Останите суви у трупу са причвршћеним ПФД-ом.
Фаза 4: Медицинска тријажа у дивљини након удара грома („Обрнута тријажа“)¶
У стандардним траумама у дивљини (као што је одрон камења или лавина са ограниченим бројем спасилаца), медицинари се фокусирају на жртве које вриште или крваре и одређују приоритет жртвама без пулса или дисања. У случају удара грома са масовним жртвама, морате применити потпуно супротно правило: ОБРНУТА ТРИЈАЖА.
Зашто „Реверзна тријажа“ спашава животе у ударима грома¶
- Ако је жртва муње свесна, стење или дише сама, она је већ преживела тренутну смртоносну електричну фазу. Иако могу да имају болне опекотине, пукнуће бубне опне или привремену парализу ногу, скоро сигурно ће преживети без хитне реанимације.
- Ако жртва муње изгледа потпуно „мртва“ (нема дисања, нема пулса, фиксиране и проширене зенице, ишарана цијанотична кожа), често се може вратити у пуни живот ако се ЦПР и дисање за спасавање започну у року од 60 секунди.
- Зашто је продужено дисање за спасавање критично: Муња испоручује огроман тренутни контрашок једносмерне струје (ДЦ) који деполаризује цео миокард (срчани мишић) одједном, делујући као масивни дефибрилатор, док истовремено задивљује медуларни респираторни центар у можданом стаблу. Веома често, жртвин природни срчани пејсмејкер (синоатријални чвор) поново покреће откуцаје срца у року од неколико секунди, али мождано стабло жртве остаје парализовано и не може да покрене дах 10 до 30 минута. Ако нико не дише за ту жртву, кисеоник у крви им пада и срце други пут стаје од хипоксије (секундарни хипоксични срчани застој), што је фатално.
Корак по корак, реанимација дивљине након штрајка¶
- Процените безбедност сцене и померите се САМО ако је потребно: Додиривање жртве је 100% безбедно одмах. Ако је жртва ударена у откривени гребен и гром и даље активно удара изнад главе, два спасиоца могу брзо да одвуку жртву 15 до 30 метара (50 до 100 стопа) надоле са гребена, док други спасилац удахне или чучну ниско док изводе компресије.
- Отворите дисајне путеве и проверите да ли имате дисање и каротидни пулс не дуже од 10 секунди:
- Ако нема пулса и дисања: Почните пуним ЦПР одмах брзином од 100 до 120 компресија грудног коша у минути до дубине од 5 до 6 центиметара (2 до 2,4 инча) код одраслих, наизменично 30 компресија до 2 удаха за спасавање. За разлику од урбаног изненадног срчаног застоја где се понекад користи ЦПР само рукама, удисаји за спасавање су обавезни код застоја муње јер је респираторна парализа примарни убица.
- Ако жртва ИМА каротидни пулс, али НЕ дише: Изведите Ресцуе Бреатхинг брзином од 1 удах сваких 5 до 6 секунди (10 до 12 удисаја у минути), гледајући како се грудни кош подижу при сваком удисању и поново проверавајте каротидни пулс свака 2 минута. Наставите са дисањем за спасавање 30 до 60+ минута ако је потребно док се мождано стабло не опорави и спонтано дисање се настави.
- Не дајте да вас заварају „фиксне и проширене зенице“ или хладне ноге: Муња изазива дисфункцију аутономног нервног система због чега се једна или обе зенице рутински привремено фиксирају и рашире (што обично указује на мождану смрт код других траума) и изазива кераунопарализу, привремени неуролошки пасус који изазива привремени неуролошки суд. ноге жртве изгледају бледе, хладне, плаве, без пулса и потпуно парализоване. Кераунопарализа се обично повлачи сама од себе у року од 2 до 24 сата; никада не претпостављајте да је жртва мртва или да има трајно одсечену кичму на основу фиксних зеница или хладних, парализованих ногу након удара грома.
- Проверите трауму кичме, опекотине и хипотермију:
- Пошто гром изазива насилне контракције мишића или баца планинаре на камење, одржавајте ручну стабилизацију вратне кичме ако је жртва пала или ударила у главу (погледајте Spinal injuries).
- Потражите термалне опекотине на улазу/излазу (често у близини металних рајсфершлуса, копчи за каишеве, сатова, ланчића за огрлице или на табанима) и црвенкасте ознаке на кожи налик перју (Лицхтенбергове фигуре, које су патогномоничне за удар грома и избледе у року од 24 до 48 сати). Охладите активну тињајућу одећу и прекријте праве термалне опекотине чистим сувим завојима (види Burns).
- Жртву умотајте у суву изолацију и одмах умотајте у хипотермију (види Wilderness hypothermia and cold). Свака жртва удара грома захтева болничку евалуацију са ЕКГ-ом од 12 одвода и крвним тестовима за рабдомиолизу (разградњу мишића).
Често постављана питања¶
Да ли ме гума на ђону планинарских ципела или ципела за трчање изолује од удара грома?
No. A lightning bolt has just traveled through 2 to 5 kilometers (1 to 3 miles) of insulating atmospheric air driven by 100 million to 1 billion volts. A 1.5-centimeter (0.6-inch) layer of wet, dirty rubber on the bottom of a hiking boot offers negligible resistance to high-voltage ground current. Only a thick layer of dry closed-cell foam (such as a folded sleeping pad) combined with a dry frameless backpack and keeping your heels tightly together meaningfully reduces step-potential current through your legs, just as inside a car, it is the metal Faraday cage of the car body (never the rubber tires) that protects passengers.
Ако је мој паметни телефон, ГПС сат или Гармин инРеацх у мом џепу, да ли ће то привући удар грома?
No. Small electronic devices, cell phones, watches, and jewelry do not "attract" lightning or alter the path of a stepped leader descending from kilometers overhead. However, if you are struck by ground current or side flash while wearing metal against your bare skin (such as a metal watchband, necklace, underwire bra, belt buckle, or coins in a pocket), the metal superheats instantaneously and causes deep third-degree contact burns or melts plastic electronics into your skin. Keep your satellite communicator and phone inside a dry padded pocket of your backpack (not pressed against your chest) so they survive the storm and remain functional to transmit an SOS afterward.
Is it true that lightning never strikes the same place twice on a mountain?
That is a dangerous myth. Lightning repeatedly strikes the exact same prominent topographic points, rock pinnacles, and summit towers multiple times during a single thunderstorm cell because those features provide the shortest, highest-field-strength path for upward streamers. Never shelter next to a tree or boulder that was "just struck" assuming it is now safe.
How long after the last flash of lightning or clap of thunder must I wait before climbing back up onto an exposed ridge or launching my kayak?
Follow the official National Weather Service and Wilderness Medical Society 30/30 Rule: after witnessing the final flash of lightning or hearing the final clap of thunder, wait a full 30 minutes before leaving your lower-elevation shelter to re-ascend an exposed ridge or paddle back out onto open water. Over half of all fatal lightning strikes occur after the heavy rain shaft has passed, because "bolts from the blue" (positive cloud-to-ground strikes originating from the high upper anvil of the storm) routinely leap horizontally 10 to 16 kilometers (6 to 10 miles) behind the trailing edge of a departing thunderstorm into clear blue sky.
What should I do if I am riding a mountain bike or horse when caught in lightning on an open trail?
If riding a mountain bike (especially a carbon-fiber or aluminum frame) on an exposed ridge or open prairie, dismount immediately, lay the bike flat on the ground at least 15 to 30 meters (50 to 100 feet) away from you, and adopt the lightning crouch in a low depression. If riding a horse or leading pack stock, dismount immediately and tie or hobble the animals in a low stand of uniform trees at least 30 meters (100 feet) away from where you crouch. Horses and mules have a long four-legged wheelbase (1.5 to 2 meters / 5 to 6.5 feet between front and rear hooves), making them extraordinarily vulnerable to fatal step-potential ground currents even from distant strikes.
Where can I learn hands-on wilderness CPR and backcountry lightning triage?
Reading a guide is no substitute for muscle memory during an alpine emergency. Take a hands-on CPR and First Aid course from the American Red Cross, St John Ambulance, the Resuscitation Council UK, or a certified Wilderness First Aid (WFA) / Wilderness First Responder (WFR) provider such as NOLS Wilderness Medicine or Wilderness Medical Associates so you can practice prolonged rescue breathing and backcountry patient packaging under realistic conditions.
Извори проверени¶
- Wilderness Medical Society (WMS) (United States / International): Wilderness Medical Society Clinical Practice Guidelines for the Prevention and Treatment of Lightning Injuries (Davis et al., Wilderness & Environmental Medicine, covering the 5 injury mechanisms, terrain selection, lightning position, reverse triage, and keraunoparalysis).
- National Oceanic and Atmospheric Administration (NOAA) / National Weather Service (NWS) (United States): Backcountry Lightning Risk Reduction Guidelines and Boating Lightning Safety Protocols (30/30 rule, flash-to-bang calculation, and upward streamer warning signs).
- Centers for Disease Control and Prevention (CDC) (United States): Lightning Strike Victim Triage and Medical Management (safety of touching strike victims immediately, cardiac vs. respiratory arrest physiology, and prolonged rescue breathing).
- American Heart Association (AHA) (United States) & European Resuscitation Council (ERC) (European Union): Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care: Special Circumstances of Resuscitation (Electrocution and Lightning Strike).
- National Outdoor Leadership School (NOLS) Wilderness Medicine (United States): Backcountry Lightning Protocol (group separation distances of 15 to 30 meters, foam pad insulation, tent precautions, and 45-degree cone of protection caveats).
- United States Coast Guard (USCG) & BoatUS Foundation (United States): Open-Water Small Craft and Sailboat Lightning Protection and Survival Procedures.
- British Mountaineering Council (BMC) (United Kingdom) & Alpine Club of Canada (ACC) (Canada): Alpine Ridges, Via Ferrata, and Technical Climbing Lightning Evacuation Guidance.