Re: [John Muir Trail] Re: Lighting
- Never under a lone tree or tallest tree in a group, due to danger of electricity splash across the ground if the tree is hit.There was a lot of recent discussion re lightning- please see previous posts on the topic in the JMT Yahoo files. Also a NOLS article on wilderness lightning safety.
On Jul 22, 2013, at 11:48 AM, "debrabrownbear" <debrabrownbear@...> wrote:
I just posted a very similar question. Looking forward to any sage advice.
--- In email@example.com, "thetortes52" <ed_rodriguez52@...> wrote:
> Last year I was while on the JMT I was in the middle of two thunder and lighting storms, the first was going on my way to Silver Pass and the other was on my way to Mather Pass.
> It always my understanding that lighting will strike the highest point and when we are in the middle of a thunder and lighting storm we should seek shelter under a tree.
> We end up camping in Squaw Lake where there really wasn't any high trees and just below the switchback going up to Mather Pass which there was no trees at all.
> Does anybody know how lighting travel. Are we safe just below the mountain top at there bass.
> As am preparing for my trip this year I like to have a clear understanding and not just assume something. Thanks
- Thanks, John. Excellent advice!
--- In firstname.lastname@example.org, John Ladd <johnladd@...> wrote:
> We probably over-spooked you.
> I have slept on the small tentpad about 25 yards south of Muir Hut and it
> was a great night. And it had high points on two sides within 50 meters, so
> it probably wasn't all that bad. But I wouldn't do it with weather
> Last water short of a Pass, assuming it is above treeline, could be a place
> to pay attention to local terrain. From what I have read, you don't want to
> be too near the water itself and you need to have higher terrain within 50
> meters of you, so it attracts the strike, rather than you attract the
> strike. But you want to avoid tucking up close to the highest thing around,
> since that increases risks from ground currents.
> John Curran Ladd
> 1616 Castro Street
> San Francisco, CA 94114-3707
> On Mon, Jul 22, 2013 at 11:47 AM, debrabrownbear
> > **
> > Thanks to everyone who contributed to the great discussion about lightning
> > a couple of weeks ago. I've read all the posts, read the articles, and
> > watched the great NOLS video. I've hiked in the Sierra my whole life, but
> > this is my first time through-hiking the JMT. My husband and I are planning
> > a leisurely trip, averaging <10 miles/day, beginning 8/12 from TM to
> > Whitney Portal. In planning mileage each day, and our camping locations
> > each night, are there specific locations (place names) along the trail that
> > one should avoid entirely, given high exposure and lightning risk? Example:
> > My typical approach would be to camp below a pass, near the last good water
> > source, so that I could be up and over that pass as early as possible the
> > next morning (e.g. Palisade Lakes, Lake Marjorie).
> > And if one's choice is between pitching a tent (with metal poles) in a
> > depression in a bare/rocky and rolling landscape, or pitching that same
> > tent in a stand of trees of equal height nearby, what's the best decision?
> > I never worried much about lightning strikes until I read all of the
> > posts, the articles, etc. Now I'm a bit spooked. :-)
> > Debra