Search results with tag "Tornado trends over the past"

Tornado Trends over the Past 30 Years

TORNADO FREQUENCY AND F-SCALE RATING over the past 33 years are the advent of cellular Figure 1 shows the number of tornadoes during the ... Flint, MI; and Worcester, MA tornadoes of 1953, and the Palm Sunday Tornado Outbreak of April 11, 1965. In the 1970s, there was an average of 858 tornadoes per year. In the 1990s, this increased by

  Trends, Worcester, Past, Over, Tornado, Tornado trends over the past