Several parts of B.C. are being hit by stormy weather with more expected through late Monday night. Snowfall warnings are posted for much of the Peace Country with up to 20 cm expected. A winter storm warning is also in effect for parts of the Southern Interior with drivers being urged to avoid Highway 3 through Kootenay Pass. The Lower Mainland will be hit with very heavy rain with up to 70mm expected by Monday night. Environment Canada is warning people to avoid pooling water. Strong wind is also expected in many areas of Metro Vancouver and the Fraser Valley.