I live down in Los Angeles, California so it's warm most of the time. My friends and I are planning a trip to Big Bear in mid January which means it'll be winter season with snow and the temperature falling to about 30°F. The problem is, I don't have any snow weather clothing and I don't know how to dress for it. All I have are a bunch of blazers, cardigans, jackets, and a sweater which I'm pretty sure are not snow weather acceptable.

I need some advise on male clothing that I should buy and get ready for this upcoming trip so I don't freeze my butt off. Thanks!