Since gliders have much less drag than airplanes you have better odds of staying put with just the wheel brake. You need to maintain sufficient stick forward contact with the ground. Wind at ground level is especially turbulent and tumbly so this is certainly not a safe thing to be doing; it's easy to visualize that stick and rudder could be overwhelmed with dire consequences if conditions get bad enough. The problem is that if you land in very strong wind, it can be your only option until things settle down. Thankfully, I haven't been in this situation in several decades. Wave flying can get you there too.