A team of injured soldiers scaling Everest was stranded at camp as the mountain was battered by high speed winds.
The Walking With The Wounded group was forced back by 150mph gusts after trying to reach the Lhotse Face and beyond last Friday, they said.
But after beating a retreat to Everest's Camp 2, they remained stranded there for three days, surviving on their reserve food supply.
Today they arrived safely back at Base Camp, having helped rescue other climbers in trouble along the way.
Expedition leader Russell Brice, who has led expeditions up Mount Everest for 25 years, said he had never seen such conditions.
"Unseasonably warm weather has made conditions on Everest a little more testing than normal," he said.
"We have been undertaking rescues for other teams every single day this week, and on Monday we airlifted a Sherpa from Camp 1 following a stroke."
Walking With The Wounded Everest Summit team leader, former captain Martin Hewitt, added "every step was a mission" as the soldiers attempted their climb.
Mr Hewitt from Widnes in Cheshire, Captain David Wiseman from Tadcaster in North Yorkshire, Captain Francis Atkinson from Swindon in Wiltshire, former Private Karl Hinett from Tipton in the West Midlands and Private Jaco van Gass from Middleburg in South Africa are in the process of acclimatising for their climb to the summit of the world's high mountain.
Despite their gunshot wounds, burns and amputated limbs, they hope to reach the peak towards the end of the month.
Walking With The Wounded aims to raise money to help other injured servicemen and women readjust to civilian life after they leave the armed forces.
A coin featuring the Roman God Vulcan from the "Stronger" set of coins from The Royal Mint's London 2012 Gold Series commemorative coin range, which is a set of nine coins crafted in 22 carat gold and are inspired by the Olympic motto Faster, Higher, Stronger. The Stronger set is the third and last in the series to launch and features Roman Gods Mars - god of war, Vulcan - god of Fire and Minerva, goddess of war. They are the only UK coins from The Royal Mint's London 2012 Commemorative Coin range to feature the iconic Olympic rings. Photo credit should read: David Parry/PA Wire
Detail of designs for a test section of a pixellated portrait of Queen Elizabeth II, made out of cakes, at Konditor and Cook, in the City of London.The finished portrait made up of 3,120 cakes, one for each week of Queen Elizabeth II's reign, will be displayed in Battersea Park, London, on June 3, 2012, at the Diamond Jubilee festival. Photo credit should read: Dominic Lipinski/PA Wire
Tommy Lee Jones, a cast member in the upcoming film "Men in Black 3," points a prop gun at photographers before dropping it into a time capsule from the film, during a photo call in Beverly Hills, Calif.Cast members and the film's director Barry Sonnenfeld dropped props, costume pieces and memorabilia from the film franchise into the time capsule, which will travel across the country before being locked away in a NASA storage facility for 43 years. (AP Photo/Chris Pizzello)
Tunnock the three week old Meerkat fits inside a tea cup after being weighed by keeper Anna Keen at Blair Drummond Safari Park using her favourite biscuit as balancing weights. Tunnock weighed the same weight as four Tunnock tea cakes(96g). He is one of four Meerkats born recently, with the other ones being triplets. Photo credit should read: Andrew Milligan/PA Wire
Yves Rossy, known as the Jetman, jumps from a helicopter over Rio de Janiero, Brazil, The Swiss aviator dropped from the helicopter and deployed the Jet powered carbon-kevlar Jetwing, which he uses his body to steer, as he flew over the city before landing on Copacabana beach. (AP Photo/Joe Parker, Breitling)
Current Mayor of London Boris Johnson poses for photographs with his wife Marina Johnson after casting his vote in the election for the next Mayor of London on May 3, 2012 in London, England. Recent opinion polls place the incumbent Mayor of London Mr Johnson ahead of his nearest challenger, the former Mayor Ken Livingstone, in his bid to secure a second term in office. (Photo by Oli Scarff/Getty Images)
Joost Luiten of The Netherlands plays a shot during the first round of the Open de Espana at Real Club de Golf de Sevilla on May 3, 2012 in Seville, Spain. (Photo by Stuart Franklin/Getty Images)
A cockchafer or may bug is pictured on a blossom in Hanover, Germany, May bugs feed on leaves of various broad-leafed trees, particularly oaks. The bugs fly around between the end of April and the middle of June. Photo: HOLGER HOLLEMANN