article_snippet: Until Wednesday, there hadn't been a single report of a tornado in the United States during March.
article_snippet: CNN meteorologist Judson Jones said there were preliminary reports of seven tornadoes on Wednesday.  
article_snippet: An average year would produce 80 twisters in March, CNN meteorologist Judson Jones said.
article_snippet: March is typically a transitional month, where warm moist air from the Gulf of Mexico collides with cold Arctic air to produce severe thunderstorms and tornadoes.
article_snippet: CNN's Sean Morris, AnneClaire Stapleton, Jeremy Grisham and Dave Alsup contributed to a single report of a tornado in the United States.
highlights_snippet: There are preliminary reports of 7 tornadoes .
  