Party tents should not be left up for long periods in extreme weather such as heavy rain, strong winds, or storms as they can blow over. Please note that when a storm comes, the tent should be stowed away to prevent it from being blown away. In winter, you need to remove the snow from the tarp in time to prevent the tent from collapsing. Party tents are used for temporary shelter for short periods during parties, weddings, rallies, and other events, and should not be left outdoors for long periods like carports or other things. We recommend you mount our products on concrete or wooden boards with expansion screws to better stabilize our products (We do not supply expansion screws, so you will need to prepare your own). You can also mount it on grass, but this can only be used outdoors for a short time, not for a long time. If you want to place it on the grass for a long time, you need to pour cement around the legs and fix it with expansion screws to ensure stability. For more stability and safety, please make sure to use a rope with L-shaped spikes and sandbags to fix(It can withstand force 9 winds with 100 kilograms of sandbags fixed on each side).