We have used quality materials to make the tipi as robust as possible, and at the same time as light as possible. We believe we have found a good blance between weight and strength. You should be able to use the tipi in most weather. But rememeber. It is not a cabin. It is a tent. Even though we have designed the tipi to withstand a lot of weather and wind, it is not indestructible.
You can thrust it to withstand high winds. But never leave the tipi without supervision when it is snowing. Particulary wet and heavy snow will put a huge load on the tipi, and if the snow is not knocked away, the heavy snow will ultimately destroy the tipi. The weight of the snow can reach as much as 400 grams per liter of snow. This means that as little as two inches of snow on the flysheet will weight about 20 kilos per square meter of tent. The surface of the tent is about 14 square meters. Which puts unbelievable 280 kilos on the tipi. In this scenario the center-pole will probably break long before any tearing of the fabric. Snow at -3 degrees Celcius weighs about 50 gram per liter. With two inches of snow this is 2,5 kilos per square meter. This is about 35 kilograms on the flysheet. This may not sound very much. But with a constant force pulling on the tipi, it will stress the center-pole in such a way that it will be significally weakend if exposed to this force over several days. Additionally, if you add strong wind, the center-pole will scream for help where it eventually will break. So. Keep the snow away from the flysheet. If you do this, the tipi will withstand a lot of challenging weather.