A Russian mountaineer captured one of nature's most terrifying warning signs after his climbing ropes began hissing and crackling on a fog-shrouded Alpine ridge—just moments before a lightning bolt struck nearby.
Rasul Kadorov was scaling the famous Arête des Cosmiques in the Mont Blanc massif at 3,750 metres (12,300 feet) on 1 July when the air around him started to fizz. The dramatic first-person video, which has since gone viral, shows the climber gripping his red-and-white slings and blue ropes as an ominous buzzing fills the soundtrack. Overlay text on some versions of the clip asks: “Ever heard the air before lightning?”
Seconds later, lightning crashed down. Kadorov escaped unharmed but immediately abandoned the climb. “My first reaction was a mix of fear and confusion,” he later said. “Only afterwards did I realise how close it was. When it happened, everything went extremely fast. I felt the electrical discharge, heard the explosive sound and my body reacted before my mind could process it.”He added that in four years of mountaineering he had never experienced anything like it. “A few seconds I will never forget.”
The location itself is no stranger to drama. The Cosmiques Ridge is a classic, exposed granite scramble near the Aiguille du Midi, popular with climbers heading toward Mont Blanc but notorious for sudden weather changes. On this day, the peak was wrapped in mist, putting Kadorov uncomfortably close to the base of the storm clouds.winterclimb.com
The science behind the sinister soundtrack
What Kadorov filmed is corona discharge — a precursor to a lightning strike that experts describe as nature’s last, loudest warning.
During a thunderstorm, the base of the cloud becomes heavily negatively charged. This forces an intense positive charge to gather on the ground below, concentrating on the highest, sharpest points: mountain ridges, metal carabiners, ice axes, and even a climber’s hair or ropes. When the electric field grows strong enough — typically around 17–21 kV per centimetre for audible effects, the air around those points begins to ionise. Electrons are stripped from air molecules, creating a faint plasma that produces the distinctive hissing, buzzing or crackling sound.
In humid or foggy conditions, the effect is louder, much like the familiar hum of high-voltage power lines on a damp morning. If the field intensifies further, it can produce a visible bluish glow known as St Elmo’s Fire, historically seen dancing on ships’ masts and church steeples. Hair standing on end is another classic sign. Had Kadorov not been wearing a helmet, his hair would likely have been standing bolt upright.
Scientists recently confirmed similar faint corona discharges even on tree leaves during storms, using ultraviolet cameras. The phenomenon is more common than once thought, though rarely captured so clearly on a human scale. It signals that an “upward streamer” of positive charge may be about to connect with a downward leader from the cloud, turning that exact spot into a potential strike point.
A lucky escape, and a stark warningKadorov was fortunate. Lightning at that altitude carries enormous energy, and mountain peaks act like natural lightning rods. Metal climbing gear only increases the risk. Experts say anyone who hears this buzzing, feels tingling skin, or sees their hair rise should immediately get off the high ground, drop metal equipment, and adopt the lightning safety position: crouch low on the balls of the feet with heels together, hands over ears, and minimise contact with the ground.
The footage has been viewed millions of times across platforms, serving as a vivid reminder that in the mountains the air itself can start talking, and when it does, you listen. Or you run.
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