it depends on the situation
The Joplin, Missouri tornado occurred on May 22, 2011.
The Henryville, Indiana tornado occurred on March 2, 2012.
The Waco tornado occurred in the town of Waco, Texas.
The Joplin, Missouri tornado occurred on May 22, 2011.
The Joplin tornado occurred on the afternoon of May 22, 2011.
The deadliest tornado in Minnesota occurred in the city of Chandler on June 16, 1992. It was an EF5 tornado that caused significant damage and sadly resulted in one fatality.
The Daulatpur-Saturia tornado of April 26, 1989 is the deadliest tornado in history. This tornado, which occurred in Bangladesh killed about 1,300 peopl.
The Hallam Nebraska tornado occurred on May 22, 2004.
That would depend on which Oklahoma tornado you are asking about. Oklahoma has had thousands of recorded tornadoes. If the tornado was one that occurred any time in the past 30 years or so, then the answer is almost certainly yes. If the tornado occurred before the 1960s then there probably was no warning.
The deadliest tornado outside of the U.S. and in fact the deadliest tornado anywhere occurred in central Bangladesh on April 26, 1989 striking the cities of Daulatpur and Saturia, killing over 1300 people.
First, it's Greensburg, not Greensboro. That tornado occurred on May 4, 2007.
The infamous Waco tornado occurred on May 11, 1953. It is unknown when a tornado might hit Waco again.