Utah averages just 2 tornadoes per year. The state's Great Basin location and mountain terrain suppress most tornado formation. But when they do occur, they can affect population centers. The 1999 Salt Lake City F2 struck downtown, showing tornadoes can happen anywhere.
On August 11, 1999, an F2 tornado struck downtown Salt Lake City. Occurred during the LDS Church General Conference. 1 killed, 100+ injured. Unusual event for the state.
Utah sits in the Great Basin. Dry air limits tornado formation.
Wasatch Range and surrounding mountains disrupt storm development.
Far from Gulf moisture sources.