Gavin Turner was scaling the treacherous Khumbu Icefall with his sherpa guide yesterday when he saw the avalanche strike climbers just ahead of him, at an altitude of about 5,800 metres.
"We saw it approach... It was an extremely close call, a matter of minutes," Turner told AFP in a phone interview from Everest base camp.
As news of the accident sent shockwaves among mountaineers, most of the sherpas on the mountain gathered their belongings and left, leaving the world's highest peak deserted but for tents packed with western climbers stunned by the disaster.
The nature of their work means that sherpas will usually make many more trips up the mountain and expose themselves to far greater risk than foreign climbers who pay tens of thousands of dollars to summit the peak.
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While rescue helicopters buzzed overhead, plucking snow-blanketed bodies out of the mountain to base camp using cables suspended from the aircraft, hundreds of sherpas said they wanted to take a break from the climb.
"My sherpa said he won't be returning -- he has a wife and a two-year-old son and the love of his family outweighed any financial reward," Turner said.
The 38-year-old had set out for his first Everest summit just days ago, in a bid to raise funds for a children's charity, but said the accident had left "many climbers asking themselves if they should go ahead".
Turner's thoughts were echoed in an account posted online by veteran mountaineer Tim Rippel, the Canadian owner of expedition company Peak Freaks.
Four sherpas on Rippel's team endured a close shave when the avalanche struck, two were trapped above the disaster area and two others dropped their loads and retreated to base camp only minutes before the accident occurred.