Complex sentence: Average snowfall in many areas exceeds per year, and can be heavy at the higher elevations; for example, during the Blizzard of 1993 more than of snow fell on Mount Mitchell over a period of three days.
Split into simpler sentences: Average snowfall in many areas exceeds per year, and can be heavy at the higher elevations. For example, during the Blizzard of 1993 more than of snow fell on Mount Mitchell over a period of three days.