Somewhere around Day 5 of the trip, I had begun to get a little smug about the weather. At that point, we'd had five days of near-perfect conditions: warm, clear days and cold, clear nights. Then, at Rosemarie Meadow, we'd had the distraction of the hail and a thunderstorm, and the day before, the rain. But the weather on Day 10 took on a new role, and was to alter the course of our trip for the following week.
Our goal for the day was to hike about ten miles over Muir Pass and midway down LeConte Canyon. We would then hike another ten the following day to position ourselves to hike over the brutal Mather Pass - probably the hardest such crossing on the Trail.
After leaving McClure Meadow, the trail continues up Evolution Valley through Colby Meadow, the last of the three principal meadows in the Valley, and then climbs up into the high, alpine, Evolution Basin. As we were making our way up the wooded switchbacks leading up into the Basin, a ranger stopped Julian on the trail and expressed a strong recommendation that we not go over the pass that day. He explained that the remnants of a hurricane in Texas were on course to collide with a Pacific front (directly above our position) and that the result would be a Category 5 (more categories) thunder and lighting storm early that afternoon. He suggested we go no higher than the treeline at 10,000 feet.
Damn. With our layover day, we had 100 miles to go in nine days of hiking, and there were five major passes and the climb of Whitney before us. This was a major setback. We grudgingly walked up the trail to the beautiful, yet barren, Evolution Lake and found a rare flat spot on the sparse mountainside for the tent. Our total for the day was a whopping three miles. There were a lot of people on the trail that day, and soon the area was full of hikers foraging for campsites to wait out the storm.
It was moments like this that made me really wish we had Julian's swanky VE-25 tent. I didn't want us to carry it, necessarily, I just wanted it to be there.
As the storm was still apparently some ways off, we set about making the circus tent as bombproof as possible. We sealed the bottom edges of the tent all around with rocks, both to keep the wind from blowing under the edge of the tent and to prevent rain from running inside. A six inch deep moat was dug into the ground around the uphill sides of the tent, a mechanism we hoped would channel any water running down the hill away from us. Finally, we got all of our gear into the tent, with our groundsheets and sleeping pads placed on dry ground. And then we waited.
It was actually a pretty nice day, so we spent the next few hours enjoying the stark beauty of Evolution Basin and talking with others who were camped around us. Because it was so nice, we wondered if, in fact, there was a storm coming at all or if we should have just gone for it and tried to get over the pass to safety. The distance between us and the pass was still about six miles, and because we didn't have any sense of the terrain (other than what we could glean from the map), we decided to stay put.
Around noon, the scattered clouds in the sky gave way to an interesting phenomenon. A swath of very-fast-moving, high clouds began racing across the sky from the southeast - something I had never seen before, as most Sierra weather comes from the west or northwest. This band of clouds, which stretched from horizon to horizon, would continue unabated for the next twenty-four hours.
Shortly after 1:00, rain began, and after it picked up a little, we went inside the tent. As the wind wasn't so bad, we left the door open to watch things develop. Then, with amazing speed, the sky got darker, the rain increased, thunder began marching toward us from the distance, and the wind began whipping the tent - thus prompting us to close the door.
Within minutes, the rain turned to large, pounding hail, and the wind began to bat the tent around mercilessly. The thunder came closer and closer and finally parked itself, it seemed, directly above our tent, and we then were given the show of all shows. The thunder and lightning were nearly constant, and our little tent was no match for the hail, sleet, rain and wind that came from the sky.
Our preparation had paid off though - some water ran in under the edges of the tent, and the force of the storm brought little streams of water through the holes in the roof, but all in all we stayed fairly dry. The volume of the tent was reduced, though, both because of the rocks weighing down the edges, and because the hail was now causing the roof to sag quite a bit. There was not a lot of room inside.
Now, I absolutely love weather, and my attitude toward thunderstorms and lightning is more like that of someone attending a concert than one of fright. But this storm had me scared. I had never experienced lightning strikes that were so close, nor thunder that was so loud, and after a few minutes of this I was cringing outright at each new explosion. Before we set up camp, I had performed a simple, "Am I going to get killed by lightning?" test on our campsite by looking at the trees around us. Usually, if the area gets a lot of groundstrikes, there will be a few charred trees. There weren't any here, and so in my mind, I really wasn't that worried, but the endless noise, light and rattling of the tent was unsettling. After about an hour of the most intense part of the storm, the thunder and lightning moved away to the north, and we were left with a gentle rainshower which ended shortly thereafter.
Again, we were able to get out and move around that afternoon, as the detritus of the hailstorm around our tent melted off. Several people got out and headed for the summit, but because our gear was pretty wet and the sky still threatening, we decided to stay put.
The storm returned again that night, but with less force, making for a good show. Because the cold at the higher altitudes (now in the mid-twenties each night) was causing us to spend about ten hours a night in our sleeping bags, I was grateful for something to do. I lay awake in the warmth of bag for several hours and enjoyed nature at work.
Photos: Evolution Lake, Preparing for the Big One