The climbers began their ascent of the mountain on June 22. The expedition climbed the mountain from the north via the Karsten's
Ridge route across the
Muldrow Glacier, a less-expensive route up the mountain but more remote and much less used than the standard West Buttress route. Despite most men in the team suffering from some level of
altitude sickness, the climbers made good progress up the mountain and by July 13 had established a camp at . At this point, some reports indicate
Park Service Rangers contacted the team to inform them of a large storm developing that was projected to hit the mountain somewhere from July 16 to 17. Regardless of this potential discrepancy, weather was projected to be clear for the next few days and so the expedition continued on. The next day, eight members of the team moved higher up the mountain to establish their final camp at , with the intent of pushing for the summit on the 15th. The start of this climb was delayed when a malfunctioning
stove caused one of the expedition's tents to catch fire, but the high camp was established by 7:00 p.m. that evening. Initial estimates placed wind speeds in the range of 100 to 150 mph (160 to 240 km/h). After returning to camp, there was a brief break in the weather, allowing for a view up the mountain. No signs of the missing climbers were visible, prompting an emergency call to the Park Service. Weather conditions deteriorated again that evening, preventing rescue efforts until the storm cleared. The storm continued on the mountain for two more days. During this time, the five men at 15,000 feet came into strife themselves. They abandoned one of their tents and all stayed in one three-person tent to keep warm from their body heat. With no room to operate their stove in the cramped space, they were only able to eat foods that did not require cooking. Lewis and Schiff became very weak from the ordeal, while Wilcox and Snyder began suffering numbness in their toes and fingers, but were in relatively better shape. On July 23, weather conditions finally improved, and the five men began descending to a camp at . As they neared the camp, they received assistance and much needed food from climbers representing the Mountaineering Club of Alaska (MCA), who had weathered the storm at the lower elevation. The next day, the members of the MCA split up, with one member climbing down with the survivors to ensure they safely returned to base camp, while the remainder began their ascent of the mountain to search for the missing seven still on the high slopes. ==Rescue efforts==