kevin trieu wrote:Bombchaser wrote:kevin trieu wrote:Bombchaser wrote:A lenticular cloud is a warning of a coming cold front, escpecially if high clouds are increasing. However they can also form from changes in the jet stream or wind direction at high altitude. Lenticular clouds can lower onto the top of large mountains producing localized severe weather. I have had first hand experience of this. I had a lenticular form out of a perfectly sunny day. The windchill hit -35, 60+ mph winds, whiteout conditions from blowing ice and snow. This lasted for about two hours. I was wearing 6 layers of clothes, heavy mitts, and mountaineering boots. Had I left this gear and went up in light clothes I may have died. I later saw that this was produced by a cold front moving into Canada. After the lenticular dissapated it returned to sunny weather. I was caught in the lenticular at the 13,000+ foot summit. The mountain was also covered in snow and ice. Having the clothes, ability to navigate, and saftey gear kept me from ruining my trip.
So you didn’t go down after seeing the lenticular cloud but chose instead to wait it out?
In my case, based on my experience, I made the decision to continue. I was at about 12,000 or so when it started forming. I had looked at weather models before I left and had a good idea of where things were at. I had all of the proper gear and was not on a highly technical route. So based on my experience level, and knowledge I made the decision to continue. I had a good idea this was a localized event since it was forming from the summit outward. Now if I had been at my car, and looked up and seen this, I would have likely discontinued my attempt.
1. Your experience told you to continue higher into forming lentucular clouds?
2. What weather models were you looking at? Did the models tell that the storm was going to last for only two hours?
3. So you continued because the stakes were higher and you were closer to the summit. What's the difference between the decision to continue whether you are at the car or 200 feet from the summit? Shouldn't it be the same?
Again, this was a judgement call. I had the experience, I had the gear. The route was not technical. This is why I continued. The weather models I saw didn't show a cold front would enter this region. My experience with weather said that since there was no high clouds above the lenticular that I had plenty of time to make the summit and return. This is all based on my training and experience. If this was Mount Hood, or Shasta the bid would have been called off. If the cloud had gotten more intense, I could have hunkered down since I had the proper gear with me. Doing most of my climbing in the winter, I'm used to dealing with harsh weather conditions and all of my gear has been tested out on smaller peaks so that I know i can survive in these types of conditions. I was not just some joe blow who had never been on a mountain. with no training, and no gear. It is not uncommon to get conditions like this on a major summit. Many climbers continue to climb in this. Based on all of the circumstances and info I had, I decided it was safe enough to continue. Had there been high clouds moving in before I lost sight of the sky, I would have turned back immediately.
How do I test my gear? When the weather is forecasted to be severe, I will go out on smaller peaks to experience those conditions and try out my gear. This way when I do get caught on a major summit I don't panic and know what to do. I have a lot of small peaks I have climbed on my list. Most were done in winter like conditions. I'm also not saying I'm not above making mistakes, I'm human. I have had some close calls. But I do not go unprepared, that is the difference. I have the gear and know how to use the gear. I don't do a lot of roped climbs because I don't have a lot of experience with this. But you don't see me attempting Mount Hoods North Face either!!