Weather forecasts for the weekend hadn't been great, but until now we'd seen no sign of particularly bad weather. It was getting cloudy as we stopped at La Hoya, and as we continued up towards Agostini, things got worse. It began to snow, and visibility began to drop. Then, in the distance, we heard thunder. At first I was not sure if it was an avalanche on the glacier or a storm brewing, but very quickly it became obvious that it was a storm.
The snow got heavier. I wanted to head back down, but Neil was sure that we were more than half way to the hut and persuaded me to carry on. We tried to go as quickly as possible but at well over 4,000m, that's not very quick. And then suddenly we were in the middle of the storm, with lightning striking terrifyingly close by and thunder shaking the ground. I dived behind a rock. Static electricity was everywhere, everything was crackling, and I could hear my ice axe sparking.
I didn't want to move. We were in huge danger and I was thinking that literally any moment could be my last. So we lay on the ground in the snow for a while until there seemed to be a lull in the storm. Then we got up and ran uphill. This was savagely tiring but fear of imminent death spurred us on. Then lightning struck close by again, the sky roared and we hit the ground once more.
In the gloom, another climber appeared, heading downhill quickly. He told us we were 20 minutes from the hut and then disappeared. So we decided to keep on going up, and actually we were more like 5 minutes away. I felt massively relieved once we caught sight of it. The storm continued and we kept on taking what cover we could when lightning struck nearby. We ran the last few metres to the hut and dived inside.
The hut was empty when we got there. Another climber arrived not long after us, shaken by his experience in the storm. It was snowing so heavily that he'd lost the path and thought he wasn't going to find the hut. Then later on, three people coming down the mountain appeared, and told us that there were more people higher up, badly equipped, one of whom was having major altitude problems.
The snow had stopped but the air was still electrified. We stayed in the hut and I worried about the people higher up - it sounded like there was a serious possibility that there would be fatalities. We were relieved when they arrived at the hut a couple of hours later. They rested in the hut for a few minutes, the one with altitude sickness falling asleep straight away. We shared food and drink with them, and they headed down. They were much better equipped than the first group had said, and with the storm now passing, it looked like they would be OK.