Number of Unwarned Severe Events

Year	Detroit Metro (DTW) Flint Bishop (FNT)	White Lake (DTX)
1990	33	0
1991	74	0
1992	31	0
1993	20	0
1994	34	0
1995	0	20
1996	0	16
1997	0	19
1998	0	37
1999	0	37
2000	0	28
2001	0	33
2002	0	36
2003	0	26
2004	0	32
2005	0	37
2006	0	37
2007	0	27
2008	0	43
2009	0	11
2010	0	17
2010	0	17
2011	0	46
2012	0	26
Averages	38.4	28.7
Year	Detroit Metro (DTW) Flint Bishop (FNT)	White Lake (DTX)