Data Sources:
NCDC, Annual Summary at: http://www.ncdc.noaa.gov
for example, the following link is the 1997 summary but also has a 
table of annual totals since the 1950's.
http://www.ncdc.noaa.gov/oa/climate/sd/annsum97.pdf

Storm Data at:  http://www5.ncdc.noaa.gov/pubs/publications.html#SD

1940-2002 List of all Severe Weather Fataltities at: http://www.nws.noaa.gov/om/severe_weather/63yrstat.pdf

AND, Natural hazards Statistics, for recent annual updates, at: http://www.nws.noaa.gov/om/hazstats.shtml

 

 

UNL
Applied Climate Science
School of Natural Resources