How to Pitch a Tarp in Strong Winds

Why Wind Is the Real Test of a Tarp Pitch

Rain is honest. It falls, it runs off, and a slack tarp will still keep you dry enough. Wind is different. Wind gets underneath, finds the loose corner, lifts the whole sheet like a sail and turns a carefully rigged shelter into a flapping nuisance at two in the morning. On exposed ground in the UK — coastal clifftops, moorland edges, the shoulder of a Lakeland fell — a tarp that survives a calm night can fail in ten minutes of steady forty-mile-an-hour gusts.

The good news is that the principles are simple and old. A low, taut pitch sheds wind best, reinforced attachment points keep the fabric from tearing, and the whole shelter should be angled into the prevailing direction so the wind flows over and past rather than pressing a wide flat panel. Get those three things right and you can sleep through weather that would flatten a badly pitched tent.

Read the Ground and the Wind Before You Unpack

Pitching begins before you touch a line. Watch the wind for a full minute — grass, tree tops and the drift of cloud will all tell you the prevailing direction, which is rarely exactly the direction of the strongest gust.

• Look for natural shelter that does not drop things on you. A stone wall, a thick hedge or a mature stand of trees will break the worst of it, but avoid pitching under dead branches. In a woodland, the safest spot is usually a gap rather than directly beneath a big tree.
• Choose ground that drains and faces slightly away from the wind. A shallow hollow is fine; a stream bed or a dip that collects water is not.
• Think about fetch. If the wind has an uninterrupted mile of moor to cross, it will arrive with force, so give yourself more slack in your planning and pitch lower than you think you need to.
• Check what the wind does around your shelter once it is up. Gusts swirl and curl behind solid objects, so a spot that feels calm could be getting eddies from an angle you did not expect.

Angle the Tarp Into the Prevailing Direction

The single most effective decision is orientation. Where you can, present the smallest possible surface to the wind. Instead of standing the tarp broadside to the gusts, quarter it: turn the pitch so the wind strikes a corner or the leading edge at roughly thirty to forty-five degrees. The flow then slides across the fabric rather than filling it, and the strain is shared between two guylines instead of loading one panel.

Combine that with height. A ridgeline set between sixty and eighty centimetres above the ground gives you a low wedge that is far more stable than a head-height A-frame. If the forecast is genuinely rough, cut that down further, and be prepared to sit and lie rather than stand. You lose a bit of comfort and gain a lot of sleep.

Build Attachment Points That Will Hold

Fabric fails before cordage does, so the weak points are the corners and the tie-outs. Reinforced corners, webbing loops and properly sealed seams are worth the extra cost and weight. If your tarp has plain eyelets, spread the load with a small smooth pebble or a knotted loop of cord behind each one.

• Use line that has a little stretch but not too much. Three-millimetre polyester or static cord is ideal; anything thin enough to cut your hands should be doubled or fitted with a short shock-cord section to absorb gusts.
• A taut-line hitch or a midshipman's hitch lets you tension a line without untying it, which matters when you are adjusting in the dark and the rain.
• Drive pegs in at roughly forty-five degrees, leaning away from the tarp, so the ground fights the pull rather than the peg lifting free. On soft peat or sand, use a deadman anchor: bury a peg or a stout stick sideways and attach the line to the middle.
• Where pegs will not hold, use rocks. Build a small cairn over each corner and run the line around a boulder first, so the load goes to the stone and not to the tarp edge.
• Aim guylines at about forty-five degrees from the shelter. Long, shallow lines give more give and more leverage; short, steep lines hold firmer but load the corner harder.

Choose a Low, Taut Pitch That Sheds Wind

Shape matters as much as tension. The classic wind-beating options are a low wedge — a ridgeline with both sides pegged tight and low to the ground — and a diamond or flying-V pitch, which presents an angled nose to the weather and a forgiving curve behind it. A simple lean-to with a solid windward edge also works well if you build a low bank of leaf litter, bracken or snow along the bottom of the tarp to stop the draught running underneath.

Whichever you pick, the aim is a drum-taut surface with no pockets. Any panel that can catch air will catch air. Pull out diagonals as well as corners — a mid-point tie-out on a long edge makes a surprising difference to how the fabric behaves in a gust.

Settle It In, Then Check It Twice

New pitches move. Cord stretches, fabric relaxes and pegs work loose as the wind pushes and releases. After the first half hour, walk the perimeter and re-tension everything, working around the shelter methodically. Do it again before you sleep and once more if you wake to a change in the sound — a fast, drumming flap means something has gone slack, while a low hum usually means the pitch is holding well.

Finally, keep your sleeping kit and rucksack inside and slightly off the walls. A tarp that is loaded from the inside deforms, and a deformed tarp invites the wind in. Pitch it low, angle it into the weather, tension it like a drum — and let the wind do its worst while you sleep.