Backpacking in 60+ mph winds!

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Dec 11, 2006
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First, I need to make the disclaimer that I have no photos :grumpy: But I have an interesting story :D

When backpacking, I am obviously concerned about weight, and I am also more concerned with staying warm, or staying cool, staying dry or staying hydrated and fed. I really don’t want to have to worry about a camera, especially in bad weather. Anyone that knows me already knows how I feel about battery operated stuff in the woods.

This past weekend, I went backpacking with a fairly large group. We got hit by a storm with confirmed winds of over 60 mph!!! The techniques that I use for stormproofing a tent (which I have been promising to document in detail) worked perfectly. Also, this was the first outing for my Cooke Custom Sewing tarp, that I posted about here. What a way to break in a new tarp! :D

The backpacking tent that I have is decently set up with the stormproof features that are important. Still, we are talking about a tent that is super light weight, and entirely mesh from the bathtub floor up.

So, while setting up, I made sure every single tie down point was staked down well. A big secret is I used 4 mil plastic, cut oversized for the inside of the tent. You will see why there is the need for this later. To be honest, I still feel silly about doing that because "experienced" campers are likely to make fun of you. That is until it rains hard, like it did here :D So I did not let other campers know I was doing it, except for my tent mate.

Also, we knew rain was possible, but did not know that we were going to get the storm that we did. So, I set up my 1.1oz 10’x10’ CCS tarp. I rigged it with a ridgeline in a lean to configuration, just like in my previous thread. The way I set it up, for the prevailing wind, I did not have a tree to tie out the center point. So, I had to use the pole pocket, and another group members trekking pole (I do not use them). I then put guy lines from the center of the sides only. I know there is more stuff that could have stormproofed it more, but again, I was not expecting 60mph winds, and the setup held up remarkable. More on that later.

One of the guys in the group got word via radio that a storm was coming with potential for 60 mph winds. I was already all dressed in my rain gear, so he asked me to go warn the boy scout troup down the way what was coming. Before I could make it all the way back to our camp, the storm had hit. It was amazing to see.

Tents without guy lines were basically flattened. The soil we were on was a good draining soil. There were high spots and low spots in camp. The low spots were completely flooded, with bottom of tents underwater. Even high spots were not immune. As I watched, basically rivers flowed, and water was literally rolling underneath every single tent in camp. Everyone had already sheltered in the tents, and most did not get to see this. Since I did not want to crawl into my nice dry tent in a soaking rain suit, I just took shelter under the CCS tarp. By this time, other tarp setups were already flapping in the wind. I took shelter and passed out the storm easily. I only had two small issues with the tarp.

First, the high winds pulled a stake out on one of the side guy lines. That side of the tent was a bit sandier soil. I also know how to keep that from happening again through a couple different methods. But again, I was not expecting what had occurred. I simply re-stacked it, and had no more issues.

Second, is the trekking pole used in the center got driven down into the ground further than I had stuck it, just from the tremendous force of the wind. I simply gave the pole a bit more height to make up for it. But those are relatively minor things, and overall I was way more than extremely impressed. How vicious the winds were had to really be seen to believe. I honestly do not think even the people huddled in their tents actually knew how bad the winds were, because they couldn’t see.

Now, I actually saw water flowing underneath my tent. After the storm blew over, I went to check on things. Water definitely made it through the tent bottom, like I had expected. You could see it through the plastic! However, NOTHING actually got wet :D Worked like a dream. Other tents in the group were dried, out, relocated, etc. Me and my tent mate did nothing. Except I showed off to a few people how we managed to keep things dry. Didn’t feel so silly about showing off the plastic at that point.

Also, just to show that conventional methods just don’t work as good as they should, when we disassembled the tent the next day, there was still standing water on the tent footprint, actually potentially making the problem worse, rather than better. Had the footprint not been there, the water would have drained away. Instead, it held it there in place. I wasn’t too concerned as the plastic kept us dry. But, I still kind of wanted the footprint there for abrasion.

Here is a summary of why the plastic works. Even if the floor had no seems, or if they were perfectly sealed, that barrier can not stand up to pressure. Most fabrics are good for 150psi at best. That seems like a lot until you have water under your tent, then put your knee or elbow down. Once the water starts, it doesn't want to stop.

Now you compound that with minor holes, seams not being sealed perfect,etc. With the plastic, damage is easy to detect. You can see it much easier. If you have a hole, it is easily fixed with duct tape! Seriously :D Duct tape will keep the "inside groundsheet" kicking for a long time! If you get tired of making repairs, it costs all of about $3 to replace.

Anyway, despite incredible weather to witness and be out in, it was a great weekend. I am always reminded that it takes ONE good storm to prove what works, and what doesn't.

I hope you found something interesting in there,
B
 
Interesting stuff for sure Brian. I'm probably going to be buying a tarp for shelter at some point, and it's neat to know that they will hold up to those conditions. It would be cool to hear some of your tips about tarp setup so I don't get wet too many times while out hiking.
 
So you taped some plastic sheet to the inside of the tent? Did you use a tarp underneath? I have always used a tarp underneath and had pretty good results as long as no big holes. Then again I don't think I ever camped in a 60mph wind storm.:eek:
 
So you taped some plastic sheet to the inside of the tent? Did you use a tarp underneath?

I did use the "footprint" designed for the tent underneath. The design is correct as far as footprints go, fits correctly, and is smaller than the tent floor, etc. However, once there was as much water as there was it was going to get covered in water. The footprint was just holding the water in place, making things worse.

The plastic was not actually taped in place. The tape was a suggestion for quick repairs. The plastic was cut big so that it wrapped up all sides of the tent. The sides can be kept vertical by extra clothes or whatever you may have in the tent.

B
 
Glad you had a good time, Brian.

The "bathtub" plastic inside the tent makes a lot of sense. I don't usually do this, but have done it in the past, although I used a conventional blue plastic tarp. Your idea for 4 mil plastic is a good one.

I don't use a footprint because of the reasons you mentioned. It's just more stuff to carry and the floor can be repaired when necessary, and, as you've already mentioned, you can't count on it to be 100% waterproof, in any case.

What I usually do, though, is to use an oversized tarp above the tent rather than the supplied fly. The supplied fly works well if all rain falls vertically, but once you factor in the wind considerations, the usually supplied fly doesn't really cut it.

I hope the foregoing makes sense, as it was edited by some Smirnoff. :rolleyes:

Doc
 
Brian that sounds like a great trip. Personally I like to get out in storms and inclement weather.

Nowadys I usualy camp in my jungle hammock so I don't have to deal with the wet ground issue. High winds in that setup can be interesting though.
 
Sweet experience! I just got an email saying mine shipped from Cooke! Do you ever bivy camp Brian? I've been thinking if I'd need a little ground cloth for bivy camping under a tarp in bad weather.
 
What I usually do, though, is to use an oversized tarp above the tent rather than the supplied fly. The supplied fly works well if all rain falls vertically, but once you factor in the wind considerations, the usually supplied fly doesn't really cut it.


Doc

Hey Doc,

I hear you on this. However, in this particular instance, the campsites were pre-selected and there was no good area to setup tarp and tent together.

The only thing about your comment is that you are really getting into tent design there, and there are literally thousands of tents.

My particular tent has an awesome fly. It covers every bit of the tent. Goes down to the ground on all sides to within about 1", has venting on the top when needed, and two vestibules. It also has the guy out points done correctly and in the correct locations. It is very hard for water to get past it, as this weekend shown. Others did not fair so well, which goes back to what to look for in design before you buy.

The two biggest things that most tents lack is enough material in the fly to sufficiently protect the tent and hitching loops in the proper locations for bad weather. If you can find a tent with all that, then get it. Otherwise, you have to start doing the sewing yourself.

Long way of saying, I would really want this particular tent pitched with the fly especially in bad weather. But, I also know your method works excellent. It can also be used with any combination of tent fly (on or off).


Brian that sounds like a great trip. Personally I like to get out in storms and inclement weather.

Long story, but I kind of had to be on this outing. As with most experiences like this, the storm was no where near predicted to be what it was earlier in the day. So once you are already in camp, miles away from anything, I didn't have much choice :D

B
 
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