You are allowed relief from that snowbank as casual water btw.
I usually just play by the rules of golf. But sometimes, especially this time of year, it is necessary to play winter rules.
When we do play them it's usually in the fairway only, and like the Master said, 6 inches no closer to the hole. The Rules of Golf always apply though. If your ball plugs in the rough, more often than not it's in casual water, or your stance would be.
When every ball that is hit in the fairway gets mud all over it, it's time for winter rules.
